Revision 2076
Added by Matt Jones about 20 years ago
DBSAXHandler.java | ||
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28 | 28 |
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package edu.ucsb.nceas.metacat; |
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import java.sql.PreparedStatement; |
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import java.sql.ResultSet; |
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import java.sql.SQLException; |
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import java.sql.Statement; |
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import java.util.EmptyStackException; |
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import java.util.Enumeration; |
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import java.util.Hashtable; |
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import java.util.Stack; |
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import java.util.Vector; |
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|
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import edu.ucsb.nceas.morpho.datapackage.Triple; |
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import edu.ucsb.nceas.morpho.datapackage.TripleCollection; |
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import java.sql.*; |
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import java.io.StringReader; |
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import java.util.Stack; |
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import java.util.Vector; |
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import java.util.Hashtable; |
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import java.util.Enumeration; |
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import java.util.EmptyStackException; |
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|
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import org.xml.sax.Attributes; |
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import org.xml.sax.SAXException; |
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import org.xml.sax.SAXParseException; |
... | ... | |
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/** |
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* A database aware Class implementing callback bethods for the SAX parser to |
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* call when processing the XML stream and generating events |
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* call when processing the XML stream and generating events.
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*/ |
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public class DBSAXHandler extends DefaultHandler |
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implements LexicalHandler, DeclHandler, Runnable { |
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public class DBSAXHandler extends DefaultHandler implements LexicalHandler, |
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DeclHandler, Runnable |
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{ |
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protected boolean atFirstElement; |
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protected boolean processingDTD; |
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protected String docname = null; |
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protected String doctype; |
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protected String systemid; |
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private boolean stackCreated = false; |
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protected Stack nodeStack; |
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protected Vector nodeIndex; |
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protected DBConnection connection = null; |
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protected DocumentImpl currentDocument; |
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protected DBSAXNode rootNode; |
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protected String action = null; |
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protected String docid = null; |
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protected String revision = null; |
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protected String user = null; |
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protected String[] groups = null; |
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protected String pub = null; |
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protected Thread xmlIndex; |
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private boolean endDocument = false; |
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protected int serverCode = 1; |
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protected Hashtable namespaces = new Hashtable(); |
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protected boolean hitTextNode = false; // a flag to hit text node |
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// a buffer to keep all text nodes for same element |
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// it is for element was splited |
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protected StringBuffer textBuffer = new StringBuffer(); |
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protected Stack textBufferStack = new Stack(); |
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protected boolean atFirstElement; |
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protected static final int MAXDATACHARS = 4000; |
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//protected static final int MAXDATACHARS = 50; |
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protected static final long INDEXDELAY = 10000; |
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// methods writeChildNodeToDB, setAttribute, setNamespace, |
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// writeTextForDBSAXNode will increase endNodeId. |
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protected long endNodeId = -1; // The end node id for a substree |
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// DOCTITLE attr cleared from the db |
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// private static final int MAXTITLELEN = 1000; |
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//HandlerTriple stuff |
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TripleCollection tripleList = new TripleCollection(); |
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Triple currentTriple = new Triple(); |
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boolean startParseTriple = false; |
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boolean hasTriple = false; |
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protected boolean processingDTD; |
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/** Construct an instance of the handler class |
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* |
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* @param conn the JDBC connection to which information is written |
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*/ |
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public DBSAXHandler(DBConnection conn) { |
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this.connection = conn; |
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this.atFirstElement = true; |
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this.processingDTD = false; |
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protected String docname = null; |
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// Create the stack for keeping track of node context |
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// if it doesn't already exist |
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if (!stackCreated) { |
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nodeStack = new Stack(); |
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nodeIndex = new Vector(); |
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stackCreated = true; |
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} |
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} |
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protected String doctype; |
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/** Construct an instance of the handler class |
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* |
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* @param conn the JDBC connection to which information is written |
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* @param action - "INSERT" or "UPDATE" |
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* @param docid to be inserted or updated into JDBC connection |
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* @param user the user connected to MetaCat servlet and owns the document |
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* @param groups the groups to which user belongs |
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* @param pub flag for public "read" access on document |
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* @param serverCode the serverid from xml_replication on which this document |
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* resides. |
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* |
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*/ |
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public DBSAXHandler(DBConnection conn, String action, String docid, |
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String user, String[] groups, String pub, int serverCode) |
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{ |
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this(conn); |
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this.action = action; |
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this.docid = docid; |
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this.user = user; |
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this.groups = groups; |
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this.pub = pub; |
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this.serverCode = serverCode; |
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this.xmlIndex = new Thread(this); |
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} |
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protected String systemid; |
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/** Construct an instance of the handler class |
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* In this constructor, user can specify the version need to upadate |
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* |
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* @param conn the JDBC connection to which information is written |
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* @param action - "INSERT" or "UPDATE" |
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* @param docid to be inserted or updated into JDBC connection |
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* @param revision, the user specified the revision need to be update |
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* @param user the user connected to MetaCat servlet and owns the document |
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* @param groups the groups to which user belongs |
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* @param pub flag for public "read" access on document |
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* @param serverCode the serverid from xml_replication on which this document |
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* resides. |
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* |
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*/ |
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public DBSAXHandler(DBConnection conn, String action, String docid, |
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String revision, String user, String[] groups, String pub, int serverCode) |
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{ |
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this(conn); |
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this.action = action; |
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this.docid = docid; |
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this.revision = revision; |
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this.user = user; |
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this.groups = groups; |
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this.pub = pub; |
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this.serverCode = serverCode; |
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this.xmlIndex = new Thread(this); |
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} |
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private boolean stackCreated = false; |
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/** SAX Handler that receives notification of beginning of the document */ |
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public void startDocument() throws SAXException { |
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MetaCatUtil.debugMessage("start Document", 50); |
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protected Stack nodeStack; |
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// Create the document node representation as root |
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rootNode = new DBSAXNode(connection, this.docid); |
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// Add the node to the stack, so that any text data can be |
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// added as it is encountered |
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nodeStack.push(rootNode); |
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} |
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protected Vector nodeIndex; |
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/** SAX Handler that receives notification of end of the document */ |
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public void endDocument() throws SAXException { |
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MetaCatUtil.debugMessage("end Document", 50); |
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// Starting new thread for writing XML Index. |
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// It calls the run method of the thread. |
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|
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//if it is data package insert triple into relationtion table; |
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if ( doctype != null && |
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MetaCatUtil.getOptionList(MetaCatUtil.getOption("packagedoctype")). |
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contains(doctype) && hasTriple) |
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{ |
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try |
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{ |
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//initial handler and write into relationdb |
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RelationHandler handler = |
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new RelationHandler(docid,doctype, connection, tripleList); |
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protected DBConnection connection = null; |
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|
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protected DocumentImpl currentDocument; |
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|
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protected DBSAXNode rootNode; |
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|
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protected String action = null; |
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|
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protected String docid = null; |
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|
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protected String revision = null; |
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|
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protected String user = null; |
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|
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protected String[] groups = null; |
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|
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protected String pub = null; |
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|
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protected Thread xmlIndex; |
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|
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private boolean endDocument = false; |
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|
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protected int serverCode = 1; |
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|
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protected Hashtable namespaces = new Hashtable(); |
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|
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protected boolean hitTextNode = false; // a flag to hit text node |
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|
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// a buffer to keep all text nodes for same element |
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// it is for element was splited |
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protected StringBuffer textBuffer = new StringBuffer(); |
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|
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protected Stack textBufferStack = new Stack(); |
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|
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protected static final int MAXDATACHARS = 4000; |
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110 |
|
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//protected static final int MAXDATACHARS = 50; |
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protected static final long INDEXDELAY = 10000; |
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|
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// methods writeChildNodeToDB, setAttribute, setNamespace, |
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// writeTextForDBSAXNode will increase endNodeId. |
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protected long endNodeId = -1; // The end node id for a substree |
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// DOCTITLE attr cleared from the db |
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// private static final int MAXTITLELEN = 1000; |
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119 |
|
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//HandlerTriple stuff |
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TripleCollection tripleList = new TripleCollection(); |
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|
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Triple currentTriple = new Triple(); |
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|
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boolean startParseTriple = false; |
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boolean hasTriple = false; |
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|
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/** |
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* Construct an instance of the handler class |
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* |
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* @param conn the JDBC connection to which information is written |
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*/ |
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private DBSAXHandler(DBConnection conn) |
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{ |
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this.connection = conn; |
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this.atFirstElement = true; |
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this.processingDTD = false; |
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|
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// Create the stack for keeping track of node context |
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// if it doesn't already exist |
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if (!stackCreated) { |
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nodeStack = new Stack(); |
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nodeIndex = new Vector(); |
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stackCreated = true; |
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} |
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catch (Exception e) |
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{ |
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MetaCatUtil.debugMessage |
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("Failed to write triples into relation table" + |
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e.getMessage(), 30); |
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throw new SAXException("Failed to write triples into relation table "+ e.getMessage()); |
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} |
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|
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/** |
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* Construct an instance of the handler class |
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* |
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* @param conn the JDBC connection to which information is written |
|
153 |
* @param action - "INSERT" or "UPDATE" |
|
154 |
* @param docid to be inserted or updated into JDBC connection |
|
155 |
* @param user the user connected to MetaCat servlet and owns the document |
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156 |
* @param groups the groups to which user belongs |
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* @param pub flag for public "read" access on document |
|
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* @param serverCode the serverid from xml_replication on which this |
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* document resides. |
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* |
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*/ |
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/* TODO excise this constructor because not used anywhere in project |
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public DBSAXHandler(DBConnection conn, String action, String docid, |
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String user, String[] groups, String pub, int serverCode) |
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{ |
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this(conn); |
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this.action = action; |
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this.docid = docid; |
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this.user = user; |
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this.groups = groups; |
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this.pub = pub; |
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this.serverCode = serverCode; |
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this.xmlIndex = new Thread(this); |
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} |
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*/ |
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/** |
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* Construct an instance of the handler class In this constructor, user can |
|
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* specify the version need to upadate |
|
179 |
* |
|
180 |
* @param conn the JDBC connection to which information is written |
|
181 |
* @param action - "INSERT" or "UPDATE" |
|
182 |
* @param docid to be inserted or updated into JDBC connection |
|
183 |
* @param revision, the user specified the revision need to be update |
|
184 |
* @param user the user connected to MetaCat servlet and owns the document |
|
185 |
* @param groups the groups to which user belongs |
|
186 |
* @param pub flag for public "read" access on document |
|
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* @param serverCode the serverid from xml_replication on which this |
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* document resides. |
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* |
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*/ |
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public DBSAXHandler(DBConnection conn, String action, String docid, |
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String revision, String user, String[] groups, String pub, |
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int serverCode) |
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{ |
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195 |
this(conn); |
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this.action = action; |
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this.docid = docid; |
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this.revision = revision; |
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this.user = user; |
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this.groups = groups; |
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this.pub = pub; |
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this.serverCode = serverCode; |
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this.xmlIndex = new Thread(this); |
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} |
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205 |
|
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/** SAX Handler that receives notification of beginning of the document */ |
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207 |
public void startDocument() throws SAXException |
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208 |
{ |
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209 |
MetaCatUtil.debugMessage("start Document", 50); |
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210 |
|
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211 |
// Create the document node representation as root |
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212 |
rootNode = new DBSAXNode(connection, this.docid); |
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213 |
// Add the node to the stack, so that any text data can be |
|
214 |
// added as it is encountered |
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215 |
nodeStack.push(rootNode); |
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216 |
} |
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217 |
|
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218 |
/** SAX Handler that receives notification of end of the document */ |
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public void endDocument() throws SAXException |
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{ |
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MetaCatUtil.debugMessage("end Document", 50); |
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// Starting new thread for writing XML Index. |
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223 |
// It calls the run method of the thread. |
|
224 |
|
|
225 |
//if it is data package insert triple into relationtion table; |
|
226 |
if (doctype != null |
|
227 |
&& MetaCatUtil.getOptionList( |
|
228 |
MetaCatUtil.getOption("packagedoctype")).contains( |
|
229 |
doctype) && hasTriple) { |
|
230 |
try { |
|
231 |
//initial handler and write into relationdb |
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232 |
RelationHandler handler = new RelationHandler(docid, doctype, |
|
233 |
connection, tripleList); |
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234 |
} catch (Exception e) { |
|
235 |
MetaCatUtil.debugMessage( |
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236 |
"Failed to write triples into relation table" |
|
237 |
+ e.getMessage(), 30); |
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238 |
throw new SAXException( |
|
239 |
"Failed to write triples into relation table " |
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240 |
+ e.getMessage()); |
|
241 |
} |
|
202 | 242 |
} |
203 |
} |
|
204 |
|
|
205 |
|
|
206 |
try { |
|
207 |
xmlIndex.start(); |
|
208 |
} catch (NullPointerException e) { |
|
209 |
xmlIndex = null; |
|
210 |
throw new |
|
211 |
SAXException("Problem with starting thread for writing XML Index. " + |
|
212 |
e.getMessage()); |
|
213 |
} |
|
214 |
} |
|
243 |
boolean useXMLIndex = |
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244 |
(new Boolean(MetaCatUtil.getOption("usexmlindex"))).booleanValue(); |
|
245 |
if (useXMLIndex) { |
|
246 |
try { |
|
247 |
xmlIndex.start(); |
|
248 |
} catch (NullPointerException e) { |
|
249 |
xmlIndex = null; |
|
250 |
throw new SAXException( |
|
251 |
"Problem with starting thread for writing XML Index. " |
|
252 |
+ e.getMessage()); |
|
253 |
} |
|
254 |
} |
|
255 |
} |
|
215 | 256 |
|
216 |
/** SAX Handler that is called at the start of Namespace */ |
|
217 |
public void startPrefixMapping(String prefix, String uri) |
|
218 |
throws SAXException
|
|
219 |
{ |
|
220 |
MetaCatUtil.debugMessage("NAMESPACE", 50); |
|
257 |
/** SAX Handler that is called at the start of Namespace */
|
|
258 |
public void startPrefixMapping(String prefix, String uri)
|
|
259 |
throws SAXException |
|
260 |
{
|
|
261 |
MetaCatUtil.debugMessage("NAMESPACE", 50);
|
|
221 | 262 |
|
222 |
namespaces.put(prefix, uri); |
|
223 |
} |
|
263 |
namespaces.put(prefix, uri);
|
|
264 |
}
|
|
224 | 265 |
|
225 |
/** SAX Handler that is called at the start of each XML element */ |
|
226 |
public void startElement(String uri, String localName, |
|
227 |
String qName, Attributes atts) |
|
228 |
throws SAXException { |
|
229 |
// for element <eml:eml...> qname is "eml:eml", local name is "eml" |
|
230 |
// for element <acl....> both qname and local name is "eml" |
|
231 |
// uri is namesapce |
|
232 |
MetaCatUtil.debugMessage("Start ELEMENT(qName) " + qName, 50); |
|
233 |
MetaCatUtil.debugMessage("Start ELEMENT(localName) " + localName, 50); |
|
234 |
MetaCatUtil.debugMessage("Start ELEMENT(uri) " + uri, 50); |
|
235 |
|
|
236 |
DBSAXNode parentNode = null; |
|
237 |
DBSAXNode currentNode = null; |
|
266 |
/** SAX Handler that is called at the start of each XML element */ |
|
267 |
public void startElement(String uri, String localName, String qName, |
|
268 |
Attributes atts) throws SAXException |
|
269 |
{ |
|
270 |
// for element <eml:eml...> qname is "eml:eml", local name is "eml" |
|
271 |
// for element <acl....> both qname and local name is "eml" |
|
272 |
// uri is namesapce |
|
273 |
MetaCatUtil.debugMessage("Start ELEMENT(qName) " + qName, 50); |
|
274 |
MetaCatUtil.debugMessage("Start ELEMENT(localName) " + localName, 50); |
|
275 |
MetaCatUtil.debugMessage("Start ELEMENT(uri) " + uri, 50); |
|
238 | 276 |
|
239 |
// Get a reference to the parent node for the id |
|
240 |
try { |
|
241 |
parentNode = (DBSAXNode)nodeStack.peek(); |
|
242 |
} catch (EmptyStackException e) { |
|
243 |
parentNode = null; |
|
244 |
} |
|
245 |
|
|
246 |
// If hit a text node, we need write this text for current's parent node |
|
247 |
// This will happend if the element is mixted |
|
248 |
if (hitTextNode && parentNode != null) |
|
249 |
{ |
|
250 |
// write the textbuffer into db for parent node. |
|
251 |
endNodeId = writeTextForDBSAXNode(endNodeId, textBuffer, parentNode); |
|
252 |
// rest hitTextNode |
|
253 |
hitTextNode =false; |
|
254 |
// reset textbuffer |
|
255 |
textBuffer = null; |
|
256 |
textBuffer = new StringBuffer(); |
|
257 |
|
|
258 |
} |
|
277 |
DBSAXNode parentNode = null; |
|
278 |
DBSAXNode currentNode = null; |
|
259 | 279 |
|
260 |
// Document representation that points to the root document node |
|
261 |
if (atFirstElement) |
|
262 |
{ |
|
263 |
atFirstElement = false; |
|
264 |
// If no DOCTYPE declaration: docname = root element |
|
265 |
// doctype = root element name or name space |
|
266 |
if (docname == null) |
|
267 |
{ |
|
268 |
docname = localName; |
|
269 |
// if uri isn't null doctype = uri(namespace) |
|
270 |
// othewise root element |
|
271 |
if (uri != null && !(uri.trim()).equals("")) |
|
272 |
{ |
|
273 |
doctype = uri; |
|
274 |
} |
|
275 |
else |
|
276 |
{ |
|
277 |
doctype = docname; |
|
278 |
} |
|
279 |
MetaCatUtil.debugMessage("DOCNAME-a: " + docname, 30); |
|
280 |
MetaCatUtil.debugMessage("DOCTYPE-a: " + doctype, 30); |
|
281 |
} |
|
282 |
else if (doctype == null) |
|
283 |
{ |
|
284 |
// because docname is not null and it is declared in dtd |
|
285 |
// so could not be in schema, no namespace |
|
286 |
doctype = docname; |
|
287 |
MetaCatUtil.debugMessage("DOCTYPE-b: " + doctype, 30); |
|
288 |
} |
|
289 |
rootNode.writeNodename(docname); |
|
290 |
try { |
|
291 |
// for validated XML Documents store a reference to XML DB Catalog |
|
292 |
// Because this is select statement and it needn't to roll back if |
|
293 |
// insert document action fialed. |
|
294 |
// In order to decrease DBConnection usage count, we get a new |
|
295 |
// dbconnection from pool |
|
296 |
String catalogid = null; |
|
297 |
DBConnection dbConn = null; |
|
298 |
int serialNumber = -1; |
|
280 |
// Get a reference to the parent node for the id |
|
281 |
try { |
|
282 |
parentNode = (DBSAXNode) nodeStack.peek(); |
|
283 |
} catch (EmptyStackException e) { |
|
284 |
parentNode = null; |
|
285 |
} |
|
299 | 286 |
|
300 |
if ( systemid != null ) { |
|
301 |
try |
|
302 |
{ |
|
303 |
// Get dbconnection |
|
304 |
dbConn=DBConnectionPool.getDBConnection |
|
305 |
("DBSAXHandler.startElement"); |
|
306 |
serialNumber=dbConn.getCheckOutSerialNumber(); |
|
287 |
// If hit a text node, we need write this text for current's parent |
|
288 |
// node |
|
289 |
// This will happend if the element is mixted |
|
290 |
if (hitTextNode && parentNode != null) { |
|
291 |
// write the textbuffer into db for parent node. |
|
292 |
endNodeId = writeTextForDBSAXNode(endNodeId, textBuffer, parentNode); |
|
293 |
// rest hitTextNode |
|
294 |
hitTextNode = false; |
|
295 |
// reset textbuffer |
|
296 |
textBuffer = null; |
|
297 |
textBuffer = new StringBuffer(); |
|
307 | 298 |
|
308 |
Statement stmt = dbConn.createStatement(); |
|
309 |
ResultSet rs = stmt.executeQuery( |
|
310 |
"SELECT catalog_id FROM xml_catalog " + |
|
311 |
"WHERE entry_type = 'DTD' " + |
|
312 |
"AND public_id = '" + doctype + "'"); |
|
313 |
boolean hasRow = rs.next(); |
|
314 |
if ( hasRow ) { |
|
315 |
catalogid = rs.getString(1); |
|
299 |
} |
|
300 |
|
|
301 |
// Document representation that points to the root document node |
|
302 |
if (atFirstElement) { |
|
303 |
atFirstElement = false; |
|
304 |
// If no DOCTYPE declaration: docname = root element |
|
305 |
// doctype = root element name or name space |
|
306 |
if (docname == null) { |
|
307 |
docname = localName; |
|
308 |
// if uri isn't null doctype = uri(namespace) |
|
309 |
// othewise root element |
|
310 |
if (uri != null && !(uri.trim()).equals("")) { |
|
311 |
doctype = uri; |
|
312 |
} else { |
|
313 |
doctype = docname; |
|
314 |
} |
|
315 |
MetaCatUtil.debugMessage("DOCNAME-a: " + docname, 30); |
|
316 |
MetaCatUtil.debugMessage("DOCTYPE-a: " + doctype, 30); |
|
317 |
} else if (doctype == null) { |
|
318 |
// because docname is not null and it is declared in dtd |
|
319 |
// so could not be in schema, no namespace |
|
320 |
doctype = docname; |
|
321 |
MetaCatUtil.debugMessage("DOCTYPE-b: " + doctype, 30); |
|
316 | 322 |
} |
317 |
stmt.close(); |
|
318 |
}//try |
|
319 |
finally |
|
320 |
{ |
|
321 |
// Return dbconnection |
|
322 |
DBConnectionPool.returnDBConnection(dbConn, serialNumber); |
|
323 |
}//finally |
|
324 |
} |
|
323 |
rootNode.writeNodename(docname); |
|
324 |
try { |
|
325 |
// for validated XML Documents store a reference to XML DB |
|
326 |
// Catalog |
|
327 |
// Because this is select statement and it needn't to roll back |
|
328 |
// if |
|
329 |
// insert document action fialed. |
|
330 |
// In order to decrease DBConnection usage count, we get a new |
|
331 |
// dbconnection from pool |
|
332 |
String catalogid = null; |
|
333 |
DBConnection dbConn = null; |
|
334 |
int serialNumber = -1; |
|
325 | 335 |
|
326 |
//create documentImpl object by the constructor which can specify |
|
327 |
//the revision |
|
328 |
currentDocument = new DocumentImpl(connection, rootNode.getNodeID(), |
|
329 |
docname, doctype, docid, revision, action, user, |
|
330 |
this.pub, catalogid, this.serverCode); |
|
336 |
if (systemid != null) { |
|
337 |
try { |
|
338 |
// Get dbconnection |
|
339 |
dbConn = DBConnectionPool |
|
340 |
.getDBConnection("DBSAXHandler.startElement"); |
|
341 |
serialNumber = dbConn.getCheckOutSerialNumber(); |
|
331 | 342 |
|
343 |
Statement stmt = dbConn.createStatement(); |
|
344 |
ResultSet rs = stmt |
|
345 |
.executeQuery("SELECT catalog_id FROM xml_catalog " |
|
346 |
+ "WHERE entry_type = 'DTD' " |
|
347 |
+ "AND public_id = '" + doctype + "'"); |
|
348 |
boolean hasRow = rs.next(); |
|
349 |
if (hasRow) { |
|
350 |
catalogid = rs.getString(1); |
|
351 |
} |
|
352 |
stmt.close(); |
|
353 |
}//try |
|
354 |
finally { |
|
355 |
// Return dbconnection |
|
356 |
DBConnectionPool.returnDBConnection(dbConn, |
|
357 |
serialNumber); |
|
358 |
}//finally |
|
359 |
} |
|
332 | 360 |
|
333 |
} catch (Exception ane) { |
|
334 |
throw (new SAXException("Error in DBSaxHandler.startElement " + |
|
335 |
action, ane)); |
|
336 |
} |
|
337 |
} |
|
361 |
//create documentImpl object by the constructor which can |
|
362 |
// specify |
|
363 |
//the revision |
|
364 |
currentDocument = new DocumentImpl(connection, rootNode |
|
365 |
.getNodeID(), docname, doctype, docid, revision, |
|
366 |
action, user, this.pub, catalogid, this.serverCode); |
|
338 | 367 |
|
339 |
// Create the current node representation |
|
340 |
currentNode = new DBSAXNode(connection, qName, localName, parentNode, |
|
341 |
currentDocument.getRootNodeID(),docid, |
|
342 |
currentDocument.getDoctype()); |
|
368 |
} catch (Exception ane) { |
|
369 |
throw (new SAXException("Error in DBSaxHandler.startElement " |
|
370 |
+ action, ane)); |
|
371 |
} |
|
372 |
} |
|
343 | 373 |
|
344 |
// Add all of the namespaces |
|
345 |
String prefix; |
|
346 |
String nsuri; |
|
347 |
Enumeration prefixes = namespaces.keys(); |
|
348 |
while ( prefixes.hasMoreElements() ) { |
|
349 |
prefix = (String)prefixes.nextElement(); |
|
350 |
nsuri = (String)namespaces.get(prefix); |
|
351 |
currentNode.setNamespace(prefix, nsuri, docid); |
|
352 |
} |
|
353 |
namespaces = null; |
|
354 |
namespaces = new Hashtable(); |
|
374 |
// Create the current node representation |
|
375 |
currentNode = new DBSAXNode(connection, qName, localName, parentNode, |
|
376 |
currentDocument.getRootNodeID(), docid, currentDocument |
|
377 |
.getDoctype()); |
|
355 | 378 |
|
356 |
// Add all of the attributes |
|
357 |
for (int i=0; i<atts.getLength(); i++) |
|
358 |
{ |
|
359 |
String attributeName = atts.getQName(i); |
|
360 |
String attributeValue = atts.getValue(i); |
|
361 |
endNodeId = |
|
362 |
currentNode.setAttribute(attributeName, attributeValue, docid); |
|
363 |
|
|
364 |
// To handle name space and schema location if the attribute name is |
|
365 |
// xsi:schemaLocation. If the name space is in not in catalog table |
|
366 |
// it will be regeistered. |
|
367 |
if (attributeName != null && |
|
368 |
attributeName.indexOf(MetaCatServlet.SCHEMALOCATIONKEYWORD) != -1) |
|
369 |
{ |
|
370 |
SchemaLocationResolver resolver = |
|
371 |
new SchemaLocationResolver(attributeValue); |
|
372 |
resolver.resolveNameSpace(); |
|
373 |
|
|
374 |
} |
|
375 |
} |
|
379 |
// Add all of the namespaces |
|
380 |
String prefix; |
|
381 |
String nsuri; |
|
382 |
Enumeration prefixes = namespaces.keys(); |
|
383 |
while (prefixes.hasMoreElements()) { |
|
384 |
prefix = (String) prefixes.nextElement(); |
|
385 |
nsuri = (String) namespaces.get(prefix); |
|
386 |
currentNode.setNamespace(prefix, nsuri, docid); |
|
387 |
} |
|
388 |
namespaces = null; |
|
389 |
namespaces = new Hashtable(); |
|
376 | 390 |
|
377 |
// Add the node to the stack, so that any text data can be |
|
378 |
// added as it is encountered |
|
379 |
nodeStack.push(currentNode); |
|
380 |
// Add the node to the vector used by thread for writing XML Index |
|
381 |
nodeIndex.addElement(currentNode); |
|
382 |
// start parsing triple |
|
383 |
if ( doctype != null && |
|
384 |
MetaCatUtil.getOptionList(MetaCatUtil.getOption("packagedoctype")).contains(doctype) |
|
385 |
&& localName.equals("triple")) |
|
386 |
{ |
|
387 |
startParseTriple = true; |
|
388 |
hasTriple = true; |
|
389 |
currentTriple = new Triple(); |
|
390 |
} |
|
391 |
} |
|
391 |
// Add all of the attributes |
|
392 |
for (int i = 0; i < atts.getLength(); i++) { |
|
393 |
String attributeName = atts.getQName(i); |
|
394 |
String attributeValue = atts.getValue(i); |
|
395 |
endNodeId = currentNode.setAttribute(attributeName, attributeValue, |
|
396 |
docid); |
|
392 | 397 |
|
393 |
/* The run method of xmlIndex thread. It writes XML Index for the document. */ |
|
394 |
public void run () { |
|
395 |
DBSAXNode currNode = null; |
|
396 |
DBSAXNode prevNode = null; |
|
397 |
DBConnection dbConn = null; |
|
398 |
int serialNumber = -1; |
|
399 |
String doctype = currentDocument.getDoctype(); |
|
400 |
int step = 0; |
|
401 |
int counter = 0; |
|
398 |
// To handle name space and schema location if the attribute name |
|
399 |
// is |
|
400 |
// xsi:schemaLocation. If the name space is in not in catalog table |
|
401 |
// it will be regeistered. |
|
402 |
if (attributeName != null |
|
403 |
&& attributeName |
|
404 |
.indexOf(MetaCatServlet.SCHEMALOCATIONKEYWORD) != -1) { |
|
405 |
SchemaLocationResolver resolver = new SchemaLocationResolver( |
|
406 |
attributeValue); |
|
407 |
resolver.resolveNameSpace(); |
|
402 | 408 |
|
403 |
try |
|
409 |
} |
|
410 |
} |
|
411 |
|
|
412 |
// Add the node to the stack, so that any text data can be |
|
413 |
// added as it is encountered |
|
414 |
nodeStack.push(currentNode); |
|
415 |
// Add the node to the vector used by thread for writing XML Index |
|
416 |
nodeIndex.addElement(currentNode); |
|
417 |
// start parsing triple |
|
418 |
if (doctype != null |
|
419 |
&& MetaCatUtil.getOptionList( |
|
420 |
MetaCatUtil.getOption("packagedoctype")).contains( |
|
421 |
doctype) && localName.equals("triple")) { |
|
422 |
startParseTriple = true; |
|
423 |
hasTriple = true; |
|
424 |
currentTriple = new Triple(); |
|
425 |
} |
|
426 |
} |
|
427 |
|
|
428 |
/* The run method of xmlIndex thread. It writes XML Index for the document. */ |
|
429 |
public void run() |
|
404 | 430 |
{ |
405 |
// stop 5 second |
|
406 |
Thread.sleep(5000); |
|
407 |
// Opening separate db connection for writing XML Index |
|
408 |
dbConn=DBConnectionPool.getDBConnection("DBSAXHandler.run"); |
|
409 |
serialNumber=dbConn.getCheckOutSerialNumber(); |
|
410 |
dbConn.setAutoCommit(false); |
|
411 |
//make sure record is done |
|
412 |
checkDocumentTable(); |
|
413 |
// Going through the elements of the document and writing its Index |
|
414 |
Enumeration nodes = nodeIndex.elements(); |
|
415 |
while ( nodes.hasMoreElements() ) { |
|
416 |
currNode = (DBSAXNode)nodes.nextElement(); |
|
417 |
currNode.updateNodeIndex(dbConn, docid, doctype); |
|
418 |
} |
|
419 |
dbConn.commit(); |
|
431 |
DBSAXNode currNode = null; |
|
432 |
DBSAXNode prevNode = null; |
|
433 |
DBConnection dbConn = null; |
|
434 |
int serialNumber = -1; |
|
435 |
String doctype = currentDocument.getDoctype(); |
|
436 |
int step = 0; |
|
437 |
int counter = 0; |
|
420 | 438 |
|
421 |
} catch (Exception e) { |
|
422 |
try { |
|
423 |
dbConn.rollback(); |
|
424 |
//dbconn.close(); |
|
425 |
} catch (SQLException sqle) {} |
|
426 |
MetaCatUtil.debugMessage("Error in DBSAXHandler.run " + |
|
427 |
e.getMessage(), 30); |
|
428 |
|
|
439 |
try { |
|
440 |
// stop 5 second |
|
441 |
Thread.sleep(5000); |
|
442 |
// Opening separate db connection for writing XML Index |
|
443 |
dbConn = DBConnectionPool.getDBConnection("DBSAXHandler.run"); |
|
444 |
serialNumber = dbConn.getCheckOutSerialNumber(); |
|
445 |
dbConn.setAutoCommit(false); |
|
446 |
//make sure record is done |
|
447 |
checkDocumentTable(); |
|
448 |
// Going through the elements of the document and writing its Index |
|
449 |
Enumeration nodes = nodeIndex.elements(); |
|
450 |
while (nodes.hasMoreElements()) { |
|
451 |
currNode = (DBSAXNode) nodes.nextElement(); |
|
452 |
currNode.updateNodeIndex(dbConn, docid, doctype); |
|
453 |
} |
|
454 |
dbConn.commit(); |
|
455 |
|
|
456 |
} catch (Exception e) { |
|
457 |
try { |
|
458 |
dbConn.rollback(); |
|
459 |
//dbconn.close(); |
|
460 |
} catch (SQLException sqle) { |
|
461 |
} |
|
462 |
MetaCatUtil.debugMessage("Error in DBSAXHandler.run " |
|
463 |
+ e.getMessage(), 30); |
|
464 |
|
|
465 |
} finally { |
|
466 |
DBConnectionPool.returnDBConnection(dbConn, serialNumber); |
|
467 |
}//finally |
|
429 | 468 |
} |
430 |
finally |
|
469 |
|
|
470 |
/* |
|
471 |
* method to make sure insert is finished before create index table If new |
|
472 |
* version of record is in xml_documents every thing will be fine |
|
473 |
*/ |
|
474 |
private void checkDocumentTable() throws Exception |
|
431 | 475 |
{ |
432 |
DBConnectionPool.returnDBConnection(dbConn, serialNumber); |
|
433 |
}//finally |
|
434 |
} |
|
435 | 476 |
|
436 |
/* method to make sure insert is finished before create index table |
|
437 |
* If new version of record is in xml_documents every thing will be fine |
|
438 |
*/ |
|
439 |
private void checkDocumentTable() throws Exception |
|
440 |
{ |
|
441 |
|
|
442 |
DBConnection dbConn = null; |
|
443 |
int serialNumber = -1; |
|
444 |
|
|
445 |
try |
|
477 |
DBConnection dbConn = null; |
|
478 |
int serialNumber = -1; |
|
479 |
|
|
480 |
try { |
|
481 |
// Opening separate db connection for writing XML Index |
|
482 |
dbConn = DBConnectionPool |
|
483 |
.getDBConnection("DBSAXHandler.checkDocumentTable"); |
|
484 |
serialNumber = dbConn.getCheckOutSerialNumber(); |
|
485 |
|
|
486 |
// the following while loop construct checks to make sure that |
|
487 |
// the docid of the document that we are trying to index is already |
|
488 |
// in the xml_documents table. if this is not the case, the foreign |
|
489 |
// key relationship between xml_documents and xml_index is |
|
490 |
// temporarily broken causing multiple problems. |
|
491 |
boolean inxmldoc = false; |
|
492 |
long startTime = System.currentTimeMillis(); |
|
493 |
while (!inxmldoc) { |
|
494 |
String xmlDocumentsCheck = "select distinct docid from xml_documents" |
|
495 |
+ " where docid ='" |
|
496 |
+ docid |
|
497 |
+ "' and " |
|
498 |
+ " rev ='" |
|
499 |
+ revision + "'"; |
|
500 |
|
|
501 |
PreparedStatement xmlDocCheck = dbConn |
|
502 |
.prepareStatement(xmlDocumentsCheck); |
|
503 |
// Increase usage count |
|
504 |
dbConn.increaseUsageCount(1); |
|
505 |
xmlDocCheck.execute(); |
|
506 |
ResultSet doccheckRS = xmlDocCheck.getResultSet(); |
|
507 |
boolean tableHasRows = doccheckRS.next(); |
|
508 |
if (tableHasRows) { |
|
509 |
MetaCatUtil.debugMessage( |
|
510 |
"=========== find the correct document", 35); |
|
511 |
inxmldoc = true; |
|
512 |
} |
|
513 |
doccheckRS.close(); |
|
514 |
xmlDocCheck.close(); |
|
515 |
// make sure the while loop will be ended in reseaonable time |
|
516 |
long stopTime = System.currentTimeMillis(); |
|
517 |
if ((stopTime - startTime) > INDEXDELAY) { throw new Exception( |
|
518 |
"Couldn't find the docid for index build in" |
|
519 |
+ "reseaonable time!"); } |
|
520 |
}//while |
|
521 |
} catch (Exception e) { |
|
522 |
try { |
|
523 |
dbConn.rollback(); |
|
524 |
//dbconn.close(); |
|
525 |
} catch (SQLException sqle) { |
|
526 |
} |
|
527 |
MetaCatUtil.debugMessage("Error in DBSAXHandler.run " |
|
528 |
+ e.getMessage(), 30); |
|
529 |
|
|
530 |
} finally { |
|
531 |
DBConnectionPool.returnDBConnection(dbConn, serialNumber); |
|
532 |
}//finally |
|
533 |
|
|
534 |
} |
|
535 |
|
|
536 |
/** SAX Handler that is called for each XML text node */ |
|
537 |
public void characters(char[] cbuf, int start, int len) throws SAXException |
|
446 | 538 |
{ |
447 |
// Opening separate db connection for writing XML Index |
|
448 |
dbConn=DBConnectionPool.getDBConnection("DBSAXHandler.checkDocumentTable"); |
|
449 |
serialNumber=dbConn.getCheckOutSerialNumber(); |
|
450 |
|
|
451 |
//the following while loop construct checks to make sure that the docid |
|
452 |
//of the document that we are trying to index is already |
|
453 |
//in the xml_documents table. if this is not the case, the foreign |
|
454 |
//key relationship between xml_documents and xml_index is temporarily |
|
455 |
//broken causing multiple problems. |
|
456 |
boolean inxmldoc = false; |
|
457 |
long startTime = System.currentTimeMillis(); |
|
458 |
while(!inxmldoc) |
|
459 |
{ |
|
460 |
String xmlDocumentsCheck = "select distinct docid from xml_documents" + |
|
461 |
" where docid ='" + docid + "' and " + |
|
462 |
" rev ='" + revision + "'"; |
|
463 |
|
|
464 |
PreparedStatement xmlDocCheck = |
|
465 |
dbConn.prepareStatement(xmlDocumentsCheck); |
|
466 |
// Increase usage count |
|
467 |
dbConn.increaseUsageCount(1); |
|
468 |
xmlDocCheck.execute(); |
|
469 |
ResultSet doccheckRS = xmlDocCheck.getResultSet(); |
|
470 |
boolean tableHasRows = doccheckRS.next(); |
|
471 |
if (tableHasRows) |
|
472 |
{ |
|
473 |
MetaCatUtil.debugMessage("=========== find the correct document", 35); |
|
474 |
inxmldoc = true; |
|
539 |
MetaCatUtil.debugMessage("CHARACTERS", 50); |
|
540 |
// buffer all text nodes for same element. This is for text was splited |
|
541 |
// into different nodes |
|
542 |
textBuffer.append(new String(cbuf, start, len)); |
|
543 |
// set hittextnode true |
|
544 |
hitTextNode = true; |
|
545 |
// if text buffer .size is greater than max, write it to db. |
|
546 |
// so we can save memory |
|
547 |
if (textBuffer.length() > MAXDATACHARS) { |
|
548 |
MetaCatUtil.debugMessage("Write text into DB in charaters" |
|
549 |
+ " when text buffer size is greater than maxmum number", |
|
550 |
50); |
|
551 |
DBSAXNode currentNode = (DBSAXNode) nodeStack.peek(); |
|
552 |
endNodeId = writeTextForDBSAXNode(endNodeId, textBuffer, |
|
553 |
currentNode); |
|
554 |
textBuffer = null; |
|
555 |
textBuffer = new StringBuffer(); |
|
475 | 556 |
} |
476 |
doccheckRS.close(); |
|
477 |
xmlDocCheck.close(); |
|
478 |
// make sure the while loop will be ended in reseaonable time |
|
479 |
long stopTime = System.currentTimeMillis(); |
|
480 |
if ((stopTime - startTime) > INDEXDELAY) |
|
481 |
{ |
|
482 |
throw new Exception("Couldn't find the docid for index build in" + |
|
483 |
"reseaonable time!"); |
|
484 |
} |
|
485 |
}//while |
|
486 |
} |
|
487 |
catch (Exception e) |
|
557 |
} |
|
558 |
|
|
559 |
/** |
|
560 |
* SAX Handler that is called for each XML text node that is Ignorable |
|
561 |
* white space |
|
562 |
*/ |
|
563 |
public void ignorableWhitespace(char[] cbuf, int start, int len) |
|
564 |
throws SAXException |
|
488 | 565 |
{ |
489 |
try |
|
490 |
{ |
|
491 |
dbConn.rollback(); |
|
492 |
//dbconn.close(); |
|
493 |
} |
|
494 |
catch (SQLException sqle) |
|
495 |
{} |
|
496 |
MetaCatUtil.debugMessage("Error in DBSAXHandler.run " + |
|
497 |
e.getMessage(), 30); |
|
498 |
|
|
566 |
// When validation is turned "on", white spaces are reported here |
|
567 |
// When validation is turned "off" white spaces are not reported here, |
|
568 |
// but through characters() callback |
|
569 |
MetaCatUtil.debugMessage("IGNORABLEWHITESPACE", 50); |
|
570 |
|
|
571 |
DBSAXNode currentNode = (DBSAXNode) nodeStack.peek(); |
|
572 |
String data = null; |
|
573 |
int leftover = len; |
|
574 |
int offset = start; |
|
575 |
boolean moredata = true; |
|
576 |
|
|
577 |
// This loop deals with the case where there are more characters |
|
578 |
// than can fit in a single database text field (limit is |
|
579 |
// MAXDATACHARS). If the text to be inserted exceeds MAXDATACHARS, |
|
580 |
// write a series of nodes that are MAXDATACHARS long, and then the |
|
581 |
// final node contains the remainder |
|
582 |
while (moredata) { |
|
583 |
if (leftover > MAXDATACHARS) { |
|
584 |
data = new String(cbuf, offset, MAXDATACHARS); |
|
585 |
leftover -= MAXDATACHARS; |
|
586 |
offset += MAXDATACHARS; |
|
587 |
} else { |
|
588 |
data = new String(cbuf, offset, leftover); |
|
589 |
moredata = false; |
|
590 |
} |
|
591 |
|
|
592 |
// Write the content of the node to the database |
|
593 |
endNodeId = currentNode.writeChildNodeToDB("TEXT", null, data, |
|
594 |
docid); |
|
595 |
} |
|
499 | 596 |
} |
500 |
finally |
|
597 |
|
|
598 |
/** |
|
599 |
* SAX Handler called once for each processing instruction found: node that |
|
600 |
* PI may occur before or after the root element. |
|
601 |
*/ |
|
602 |
public void processingInstruction(String target, String data) |
|
603 |
throws SAXException |
|
501 | 604 |
{ |
502 |
DBConnectionPool.returnDBConnection(dbConn, serialNumber); |
|
503 |
}//finally |
|
504 |
|
|
505 |
} |
|
506 |
|
|
507 |
/** SAX Handler that is called for each XML text node */ |
|
508 |
public void characters(char[] cbuf, int start, int len) throws SAXException |
|
509 |
{ |
|
510 |
MetaCatUtil.debugMessage("CHARACTERS", 50); |
|
511 |
// buffer all text nodes for same element. This is for text was splited |
|
512 |
// into different nodes |
|
513 |
textBuffer.append(new String(cbuf, start,len)); |
|
514 |
// set hittextnode true |
|
515 |
hitTextNode = true; |
|
516 |
// if text buffer .size is greater than max, write it to db. |
|
517 |
// so we can save memory |
|
518 |
if (textBuffer.length() > MAXDATACHARS) |
|
519 |
{ |
|
520 |
MetaCatUtil.debugMessage("Write text into DB in charaters" + |
|
521 |
" when text buffer size is greater than maxmum number", 50); |
|
522 |
DBSAXNode currentNode = (DBSAXNode)nodeStack.peek(); |
|
523 |
endNodeId = writeTextForDBSAXNode(endNodeId, textBuffer, currentNode); |
|
524 |
textBuffer = null; |
|
525 |
textBuffer = new StringBuffer(); |
|
526 |
} |
|
527 |
} |
|
605 |
MetaCatUtil.debugMessage("PI", 50); |
|
606 |
DBSAXNode currentNode = (DBSAXNode) nodeStack.peek(); |
|
607 |
endNodeId = currentNode.writeChildNodeToDB("PI", target, data, docid); |
|
608 |
} |
|
528 | 609 |
|
529 |
/** |
|
530 |
* SAX Handler that is called for each XML text node that is |
|
531 |
* Ignorable white space |
|
532 |
*/ |
|
533 |
public void ignorableWhitespace(char[] cbuf, int start, int len) |
|
534 |
throws SAXException { |
|
535 |
// When validation is turned "on", white spaces are reported here |
|
536 |
// When validation is turned "off" white spaces are not reported here, |
|
537 |
// but through characters() callback |
|
538 |
MetaCatUtil.debugMessage("IGNORABLEWHITESPACE", 50); |
|
610 |
/** SAX Handler that is called at the end of each XML element */ |
|
611 |
public void endElement(String uri, String localName, String qName) |
|
612 |
throws SAXException |
|
613 |
{ |
|
614 |
MetaCatUtil.debugMessage("End ELEMENT " + qName, 50); |
|
539 | 615 |
|
616 |
// write buffered text nodes into db (so no splited) |
|
617 |
DBSAXNode currentNode = (DBSAXNode) nodeStack.peek(); |
|
540 | 618 |
|
541 |
DBSAXNode currentNode = (DBSAXNode)nodeStack.peek(); |
|
542 |
String data = null; |
|
543 |
int leftover = len; |
|
544 |
int offset = start; |
|
545 |
boolean moredata = true; |
|
619 |
// If before the end element, the parser hit text nodes and store them |
|
620 |
// into the buffer, write the buffer to data base. The reason we put |
|
621 |
// write database here is for xerces some time split text node |
|
622 |
if (hitTextNode) { |
|
623 |
MetaCatUtil.debugMessage("Write text into DB in End Element", 50); |
|
624 |
endNodeId = writeTextForDBSAXNode(endNodeId, textBuffer, |
|
625 |
currentNode); |
|
546 | 626 |
|
547 |
// This loop deals with the case where there are more characters |
|
548 |
// than can fit in a single database text field (limit is |
|
549 |
// MAXDATACHARS). If the text to be inserted exceeds MAXDATACHARS, |
|
550 |
// write a series of nodes that are MAXDATACHARS long, and then the |
|
551 |
// final node contains the remainder |
|
552 |
while (moredata) { |
|
553 |
if (leftover > MAXDATACHARS) { |
|
554 |
data = new String(cbuf, offset, MAXDATACHARS); |
|
555 |
leftover -= MAXDATACHARS; |
|
556 |
offset += MAXDATACHARS; |
|
557 |
} else { |
|
558 |
data = new String(cbuf, offset, leftover); |
|
559 |
moredata = false; |
|
560 |
} |
|
627 |
//if it is triple parsing process |
|
628 |
if (startParseTriple) { |
|
561 | 629 |
|
562 |
// Write the content of the node to the database |
|
563 |
endNodeId = currentNode.writeChildNodeToDB("TEXT", null, data, docid); |
|
564 |
} |
|
565 |
} |
|
630 |
String content = textBuffer.toString().trim(); |
|
631 |
if (localName.equals("subject")) { //get the subject content |
|
632 |
currentTriple.setSubject(content); |
|
633 |
} else if (localName.equals("relationship")) { //get the |
|
634 |
// relationship |
|
635 |
// content |
|
636 |
currentTriple.setRelationship(content); |
|
637 |
} else if (localName.equals("object")) { //get the object |
|
638 |
// content |
|
639 |
currentTriple.setObject(content); |
|
640 |
} |
|
641 |
} |
|
566 | 642 |
|
567 |
/** |
|
568 |
* SAX Handler called once for each processing instruction found: |
|
569 |
* node that PI may occur before or after the root element. |
|
570 |
*/ |
|
571 |
public void processingInstruction(String target, String data) |
|
572 |
throws SAXException { |
|
573 |
MetaCatUtil.debugMessage("PI", 50); |
|
574 |
DBSAXNode currentNode = (DBSAXNode)nodeStack.peek(); |
|
575 |
endNodeId = currentNode.writeChildNodeToDB("PI", target, data, docid); |
|
576 |
} |
|
643 |
}//if |
|
577 | 644 |
|
578 |
/** SAX Handler that is called at the end of each XML element */ |
|
579 |
public void endElement(String uri, String localName, |
|
580 |
String qName) throws SAXException { |
|
581 |
MetaCatUtil.debugMessage("End ELEMENT " + qName, 50); |
|
582 |
|
|
583 |
// write buffered text nodes into db (so no splited) |
|
584 |
DBSAXNode currentNode = (DBSAXNode)nodeStack.peek(); |
|
585 |
|
|
586 |
// If before the end element, the parser hit text nodes and store them |
|
587 |
// into the buffer, write the buffer to data base. The reason we put |
|
588 |
// write database here is for xerces some time split text node |
|
589 |
if (hitTextNode) |
|
590 |
{ |
|
591 |
MetaCatUtil.debugMessage("Write text into DB in End Element", 50); |
|
592 |
endNodeId = writeTextForDBSAXNode(endNodeId, textBuffer, currentNode); |
|
593 |
|
|
594 |
//if it is triple parsing process |
|
595 |
if (startParseTriple) |
|
596 |
{ |
|
597 |
|
|
598 |
String content = textBuffer.toString().trim(); |
|
599 |
if(localName.equals("subject")) |
|
600 |
{ //get the subject content |
|
601 |
currentTriple.setSubject(content); |
|
602 |
} |
|
603 |
else if(localName.equals("relationship")) |
|
604 |
{ //get the relationship content |
|
605 |
currentTriple.setRelationship(content); |
|
606 |
} |
|
607 |
else if(localName.equals("object")) |
|
608 |
{ //get the object content |
|
609 |
currentTriple.setObject(content); |
|
610 |
} |
|
611 |
} |
|
612 |
|
|
613 |
}//if |
|
614 |
|
|
615 |
//set hitText false |
|
616 |
hitTextNode = false; |
|
617 |
// reset textbuff |
|
618 |
textBuffer = null; |
|
619 |
textBuffer = new StringBuffer(); |
|
645 |
//set hitText false |
|
646 |
hitTextNode = false; |
|
647 |
// reset textbuff |
|
648 |
textBuffer = null; |
|
649 |
textBuffer = new StringBuffer(); |
|
620 | 650 |
|
621 |
// Get the node from the stack |
|
622 |
currentNode = (DBSAXNode)nodeStack.pop(); |
|
623 |
//finishing parsing single triple |
|
624 |
if (startParseTriple && localName.equals("triple")) |
|
625 |
{ |
|
626 |
// add trip to triple collection |
|
627 |
tripleList.addTriple(currentTriple); |
|
628 |
//rest variable |
|
629 |
currentTriple = null; |
|
630 |
startParseTriple = false; |
|
631 |
} |
|
632 |
} |
|
651 |
// Get the node from the stack |
|
652 |
currentNode = (DBSAXNode) nodeStack.pop(); |
|
653 |
//finishing parsing single triple |
|
654 |
if (startParseTriple && localName.equals("triple")) { |
|
655 |
// add trip to triple collection |
|
656 |
tripleList.addTriple(currentTriple); |
|
657 |
//rest variable |
|
658 |
currentTriple = null; |
|
659 |
startParseTriple = false; |
|
660 |
} |
|
661 |
} |
|
633 | 662 |
|
634 |
// |
|
635 |
// the next section implements the LexicalHandler interface |
|
636 |
// |
|
663 |
//
|
|
664 |
// the next section implements the LexicalHandler interface
|
|
665 |
//
|
|
637 | 666 |
|
638 |
/** SAX Handler that receives notification of DOCTYPE. Sets the DTD */ |
|
639 |
public void startDTD(String name, String publicId, String systemId) |
|
640 |
throws SAXException { |
|
641 |
docname = name; |
|
642 |
doctype = publicId; |
|
643 |
systemid = systemId; |
|
667 |
/** SAX Handler that receives notification of DOCTYPE. Sets the DTD */ |
|
668 |
public void startDTD(String name, String publicId, String systemId) |
|
669 |
throws SAXException |
|
670 |
{ |
|
671 |
docname = name; |
|
672 |
doctype = publicId; |
|
673 |
systemid = systemId; |
|
644 | 674 |
|
645 |
processingDTD = true; |
|
646 |
DBSAXNode currentNode = (DBSAXNode)nodeStack.peek();
|
|
647 |
//create a DTD node and write docname,publicid and system id into db |
|
648 |
// we don't put the dtd node into node stack |
|
649 |
DBSAXNode dtdNode = new DBSAXNode (connection, name, publicId, systemId,
|
|
650 |
currentNode, currentNode.getRootNodeID(), docid);
|
|
651 |
MetaCatUtil.debugMessage("Start DTD", 50); |
|
652 |
MetaCatUtil.debugMessage("Setting processingDTD to true", 50); |
|
653 |
MetaCatUtil.debugMessage("DOCNAME: " + docname, 50); |
|
654 |
MetaCatUtil.debugMessage("DOCTYPE: " + doctype, 50); |
|
655 |
MetaCatUtil.debugMessage(" SYSID: " + systemid, 50); |
|
656 |
} |
|
675 |
processingDTD = true;
|
|
676 |
DBSAXNode currentNode = (DBSAXNode) nodeStack.peek();
|
|
677 |
//create a DTD node and write docname,publicid and system id into db
|
|
678 |
// we don't put the dtd node into node stack
|
|
679 |
DBSAXNode dtdNode = new DBSAXNode(connection, name, publicId, systemId,
|
|
680 |
currentNode, currentNode.getRootNodeID(), docid); |
|
681 |
MetaCatUtil.debugMessage("Start DTD", 50);
|
|
682 |
MetaCatUtil.debugMessage("Setting processingDTD to true", 50);
|
|
683 |
MetaCatUtil.debugMessage("DOCNAME: " + docname, 50);
|
|
684 |
MetaCatUtil.debugMessage("DOCTYPE: " + doctype, 50);
|
|
685 |
MetaCatUtil.debugMessage(" SYSID: " + systemid, 50);
|
|
686 |
}
|
|
657 | 687 |
|
658 |
/** |
|
659 |
* SAX Handler that receives notification of end of DTD |
|
660 |
*/ |
|
661 |
public void endDTD() throws SAXException { |
|
688 |
/** |
|
689 |
* SAX Handler that receives notification of end of DTD |
|
690 |
*/ |
|
691 |
public void endDTD() throws SAXException |
|
692 |
{ |
|
662 | 693 |
|
663 |
processingDTD = false; |
|
664 |
MetaCatUtil.debugMessage("Setting processingDTD to false", 50); |
|
665 |
MetaCatUtil.debugMessage("end DTD", 50); |
|
666 |
} |
|
694 |
processingDTD = false;
|
|
695 |
MetaCatUtil.debugMessage("Setting processingDTD to false", 50);
|
|
696 |
MetaCatUtil.debugMessage("end DTD", 50);
|
|
697 |
}
|
|
667 | 698 |
|
668 |
/** |
|
669 |
* SAX Handler that receives notification of comments in the DTD |
|
670 |
*/ |
|
671 |
public void comment(char[] ch, int start, int length) throws SAXException {
|
|
672 |
MetaCatUtil.debugMessage("COMMENT", 50);
|
|
673 |
if ( !processingDTD ) {
|
|
674 |
DBSAXNode currentNode = (DBSAXNode)nodeStack.peek();
|
|
675 |
endNodeId =
|
|
676 |
currentNode.writeChildNodeToDB("COMMENT", null,
|
|
677 |
new String(ch, start, length), docid);
|
|
678 |
} |
|
679 |
} |
|
699 |
/**
|
|
700 |
* SAX Handler that receives notification of comments in the DTD
|
|
701 |
*/
|
|
702 |
public void comment(char[] ch, int start, int length) throws SAXException
|
|
703 |
{
|
|
704 |
MetaCatUtil.debugMessage("COMMENT", 50);
|
|
705 |
if (!processingDTD) {
|
|
706 |
DBSAXNode currentNode = (DBSAXNode) nodeStack.peek();
|
|
707 |
endNodeId = currentNode.writeChildNodeToDB("COMMENT", null,
|
|
708 |
new String(ch, start, length), docid); |
|
709 |
}
|
|
710 |
}
|
|
680 | 711 |
|
681 |
/** |
|
682 |
* SAX Handler that receives notification of the start of CDATA sections |
|
683 |
*/ |
|
684 |
public void startCDATA() throws SAXException { |
|
685 |
MetaCatUtil.debugMessage("start CDATA", 50); |
|
686 |
} |
|
712 |
/** |
|
713 |
* SAX Handler that receives notification of the start of CDATA sections |
|
714 |
*/ |
|
715 |
public void startCDATA() throws SAXException |
|
716 |
{ |
|
717 |
MetaCatUtil.debugMessage("start CDATA", 50); |
|
718 |
} |
|
687 | 719 |
|
688 |
/** |
|
689 |
* SAX Handler that receives notification of the end of CDATA sections |
|
690 |
*/ |
|
691 |
public void endCDATA() throws SAXException { |
|
692 |
MetaCatUtil.debugMessage("end CDATA", 50); |
|
693 |
} |
|
720 |
/** |
|
721 |
* SAX Handler that receives notification of the end of CDATA sections |
|
722 |
*/ |
|
723 |
public void endCDATA() throws SAXException |
|
724 |
{ |
|
725 |
MetaCatUtil.debugMessage("end CDATA", 50); |
|
726 |
} |
|
694 | 727 |
|
695 |
/** |
|
696 |
* SAX Handler that receives notification of the start of entities |
|
697 |
*/ |
|
698 |
public void startEntity(String name) throws SAXException { |
|
699 |
MetaCatUtil.debugMessage("start ENTITY: " + name, 50); |
|
700 |
//System.out.println("start ENTITY: " + name); |
|
701 |
if (name.equals("[dtd]")) { |
|
702 |
processingDTD = true; |
|
703 |
} |
|
704 |
} |
|
728 |
/** |
|
729 |
* SAX Handler that receives notification of the start of entities |
|
730 |
*/ |
|
731 |
public void startEntity(String name) throws SAXException |
|
732 |
{ |
|
733 |
MetaCatUtil.debugMessage("start ENTITY: " + name, 50); |
|
734 |
//System.out.println("start ENTITY: " + name); |
|
735 |
if (name.equals("[dtd]")) { |
|
736 |
processingDTD = true; |
|
737 |
} |
|
738 |
} |
|
705 | 739 |
|
706 |
/** |
|
707 |
* SAX Handler that receives notification of the end of entities |
|
708 |
*/ |
|
709 |
public void endEntity(String name) throws SAXException { |
|
710 |
MetaCatUtil.debugMessage("end ENTITY: " + name, 50); |
|
711 |
//System.out.println("end ENTITY: " + name); |
|
712 |
if (name.equals("[dtd]")) { |
|
713 |
processingDTD = false; |
|
714 |
} |
|
715 |
} |
|
740 |
/** |
|
741 |
* SAX Handler that receives notification of the end of entities |
|
742 |
*/ |
|
743 |
public void endEntity(String name) throws SAXException |
|
744 |
{ |
|
745 |
MetaCatUtil.debugMessage("end ENTITY: " + name, 50); |
|
746 |
//System.out.println("end ENTITY: " + name); |
|
747 |
if (name.equals("[dtd]")) { |
|
748 |
processingDTD = false; |
|
749 |
} |
|
750 |
} |
|
716 | 751 |
|
717 |
/** |
|
718 |
* SAX Handler that receives notification of element declarations |
|
719 |
*/ |
|
720 |
public void elementDecl(String name, String model) |
|
721 |
throws org.xml.sax.SAXException { |
|
722 |
//System.out.println("ELEMENTDECL: " + name + " " + model); |
|
723 |
MetaCatUtil.debugMessage("ELEMENTDECL: " + name + " " + model, 50); |
|
724 |
} |
|
752 |
/** |
|
753 |
* SAX Handler that receives notification of element declarations |
|
754 |
*/ |
|
755 |
public void elementDecl(String name, String model) |
|
756 |
throws org.xml.sax.SAXException |
|
757 |
{ |
|
758 |
//System.out.println("ELEMENTDECL: " + name + " " + model); |
|
759 |
MetaCatUtil.debugMessage("ELEMENTDECL: " + name + " " + model, 50); |
|
760 |
} |
|
725 | 761 |
|
726 |
/** |
|
727 |
* SAX Handler that receives notification of attribute declarations |
|
728 |
*/ |
|
729 |
public void attributeDecl(String eName, String aName,
|
|
730 |
String type, String valueDefault, String value)
|
|
731 |
throws org.xml.sax.SAXException {
|
|
762 |
/**
|
|
763 |
* SAX Handler that receives notification of attribute declarations
|
|
764 |
*/
|
|
765 |
public void attributeDecl(String eName, String aName, String type,
|
|
766 |
String valueDefault, String value) throws org.xml.sax.SAXException
|
|
767 |
{ |
|
732 | 768 |
|
733 |
//System.out.println("ATTRIBUTEDECL: " + eName + " " |
|
734 |
// + aName + " " + type + " " + valueDefault + " " |
|
735 |
// + value); |
|
736 |
MetaCatUtil.debugMessage("ATTRIBUTEDECL: " + eName + " " |
|
737 |
+ aName + " " + type + " " + valueDefault + " " |
|
738 |
+ value, 50); |
|
739 |
} |
|
769 |
//System.out.println("ATTRIBUTEDECL: " + eName + " " |
|
770 |
// + aName + " " + type + " " + valueDefault + " " |
|
771 |
// + value); |
|
772 |
MetaCatUtil.debugMessage("ATTRIBUTEDECL: " + eName + " " + aName + " " |
|
773 |
+ type + " " + valueDefault + " " + value, 50); |
|
774 |
} |
|
740 | 775 |
|
741 |
/** |
|
742 |
* SAX Handler that receives notification of internal entity declarations |
|
743 |
*/ |
|
744 |
public void internalEntityDecl(String name, String value) |
|
745 |
throws org.xml.sax.SAXException { |
|
746 |
//System.out.println("INTERNENTITYDECL: " + name + " " + value); |
|
747 |
MetaCatUtil.debugMessage("INTERNENTITYDECL: " + name + " " + value, 50); |
|
748 |
} |
|
776 |
/** |
|
777 |
* SAX Handler that receives notification of internal entity declarations |
|
778 |
*/ |
|
779 |
public void internalEntityDecl(String name, String value) |
|
780 |
throws org.xml.sax.SAXException |
|
781 |
{ |
|
782 |
//System.out.println("INTERNENTITYDECL: " + name + " " + value); |
|
783 |
MetaCatUtil.debugMessage("INTERNENTITYDECL: " + name + " " + value, 50); |
|
784 |
} |
|
749 | 785 |
|
750 |
/** |
|
751 |
* SAX Handler that receives notification of external entity declarations |
|
752 |
*/ |
|
753 |
public void externalEntityDecl(String name, String publicId,
|
|
754 |
String systemId)
|
|
755 |
throws org.xml.sax.SAXException {
|
|
756 |
//System.out.println("EXTERNENTITYDECL: " + name + " " + publicId |
|
757 |
// + " " + systemId); |
|
758 |
MetaCatUtil.debugMessage("EXTERNENTITYDECL: " + name + " " + publicId |
|
759 |
+ " " + systemId, 50);
|
|
760 |
// it processes other external entity, not the DTD; |
|
761 |
// it doesn't signal for the DTD here |
|
762 |
processingDTD = false; |
|
763 |
} |
|
786 |
/**
|
|
787 |
* SAX Handler that receives notification of external entity declarations
|
|
788 |
*/
|
|
789 |
public void externalEntityDecl(String name, String publicId, String systemId)
|
|
790 |
throws org.xml.sax.SAXException
|
|
791 |
{ |
|
792 |
//System.out.println("EXTERNENTITYDECL: " + name + " " + publicId
|
|
793 |
// + " " + systemId);
|
|
794 |
MetaCatUtil.debugMessage("EXTERNENTITYDECL: " + name + " " + publicId
|
|
795 |
+ " " + systemId, 50); |
|
796 |
// it processes other external entity, not the DTD;
|
|
797 |
// it doesn't signal for the DTD here
|
|
798 |
processingDTD = false;
|
|
799 |
}
|
|
764 | 800 |
|
765 |
// |
|
766 |
// the next section implements the ErrorHandler interface |
|
767 |
// |
|
801 |
//
|
|
802 |
// the next section implements the ErrorHandler interface
|
|
803 |
//
|
|
768 | 804 |
|
769 |
/** |
|
770 |
* SAX Handler that receives notification of fatal parsing errors |
|
771 |
*/ |
|
772 |
public void fatalError(SAXParseException exception) throws SAXException { |
|
773 |
MetaCatUtil.debugMessage("FATALERROR: "+exception.getMessage(), 50); |
|
774 |
throw (new SAXException("Fatal processing error.", exception)); |
|
775 |
} |
|
805 |
/** |
|
806 |
* SAX Handler that receives notification of fatal parsing errors |
|
807 |
*/ |
|
808 |
public void fatalError(SAXParseException exception) throws SAXException |
|
809 |
{ |
|
810 |
MetaCatUtil.debugMessage("FATALERROR: " + exception.getMessage(), 50); |
|
811 |
throw (new SAXException("Fatal processing error.", exception)); |
|
812 |
} |
|
776 | 813 |
|
777 |
/** |
|
778 |
* SAX Handler that receives notification of recoverable parsing errors |
|
779 |
*/ |
|
780 |
public void error(SAXParseException exception) throws SAXException { |
|
781 |
MetaCatUtil.debugMessage("ERROR: "+exception.getMessage(), 50); |
|
782 |
throw (new SAXException("Processing error.", exception)); |
|
783 |
} |
|
814 |
/** |
|
815 |
* SAX Handler that receives notification of recoverable parsing errors |
|
816 |
*/ |
|
817 |
public void error(SAXParseException exception) throws SAXException |
|
818 |
{ |
|
819 |
MetaCatUtil.debugMessage("ERROR: " + exception.getMessage(), 50); |
|
820 |
throw (new SAXException("Processing error.", exception)); |
|
821 |
} |
|
784 | 822 |
|
785 |
/** |
|
786 |
* SAX Handler that receives notification of warnings |
|
787 |
*/ |
|
788 |
public void warning(SAXParseException exception) throws SAXException { |
|
789 |
MetaCatUtil.debugMessage("WARNING: "+exception.getMessage(), 50); |
|
790 |
throw (new SAXException("Warning.", exception)); |
|
791 |
} |
|
823 |
/** |
|
824 |
* SAX Handler that receives notification of warnings |
|
825 |
*/ |
|
826 |
public void warning(SAXParseException exception) throws SAXException |
|
827 |
{ |
|
828 |
MetaCatUtil.debugMessage("WARNING: " + exception.getMessage(), 50); |
|
829 |
throw (new SAXException("Warning.", exception)); |
|
830 |
} |
|
792 | 831 |
|
793 |
// |
|
794 |
// Helper, getter and setter methods |
|
795 |
// |
|
832 |
//
|
|
833 |
// Helper, getter and setter methods
|
|
834 |
//
|
|
796 | 835 |
|
797 |
/** |
|
798 |
* get the document name |
|
799 |
*/ |
|
800 |
public String getDocname() { |
Also available in: Unified diff
Excluded the update of the xml_index table in insert,update, and delete if the usexmlindex option is set to false.