Revision 9976
Added by Jing Tao over 7 years ago
| src/edu/ucsb/nceas/metacat/accesscontrol/AccessControlList.java | ||
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| 38 | 38 |
import org.apache.log4j.Logger; |
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import org.xml.sax.Attributes; |
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import org.xml.sax.ContentHandler; |
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import org.xml.sax.DTDHandler; |
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import org.xml.sax.EntityResolver; |
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import org.xml.sax.ErrorHandler; |
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import org.xml.sax.InputSource; |
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import org.xml.sax.SAXException; |
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import org.xml.sax.XMLReader; |
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import org.xml.sax.ext.LexicalHandler; |
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import org.xml.sax.helpers.DefaultHandler; |
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import org.xml.sax.helpers.XMLReaderFactory; |
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import edu.ucsb.nceas.metacat.BasicNode; |
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import edu.ucsb.nceas.metacat.DBEntityResolver; |
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import edu.ucsb.nceas.metacat.DBSAXNode; |
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import edu.ucsb.nceas.metacat.DocumentImpl; |
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import edu.ucsb.nceas.metacat.McdbException; |
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import edu.ucsb.nceas.metacat.database.DBConnection; |
| ... | ... | |
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* SAX parsing events when processing the XML stream. |
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*/ |
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public class AccessControlList extends DefaultHandler |
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implements AccessControlInterface
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implements AccessControlInterface, LexicalHandler
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{
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|
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// Turn off validation |
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parser.setFeature("http://xml.org/sax/features/validation", true);
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parser.setProperty("http://xml.org/sax/properties/lexical-handler", this);
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// Set Handlers in the parser |
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// Set the ContentHandler to this instance |
| ... | ... | |
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// Set the EntityReslover to DBEntityResolver instance |
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EntityResolver eresolver = new DBEntityResolver(connection,this,null); |
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parser.setEntityResolver((EntityResolver)eresolver); |
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parser.setDTDHandler((DTDHandler)this); |
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// Set the ErrorHandler to this instance |
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parser.setErrorHandler((ErrorHandler)this); |
| ... | ... | |
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* element is detected. Used in this context to parse and store |
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* the acl information in class variables. |
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*/ |
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@Override |
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public void startElement (String uri, String localName, |
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String qName, Attributes atts) |
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throws SAXException |
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* @param publicId Public Identifier of the DTD |
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* @param systemId System Identifier of the DTD |
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*/ |
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@Override |
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public void startDTD(String name, String publicId, String systemId) |
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throws SAXException {
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processingDTD = true; |
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logMetacat.debug("AccessControlList.startDTD - Setting processingDTD to true");
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logMetacat.debug("AccessControlList.startDTD - start DTD");
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docname = name; |
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doctype = publicId; |
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systemid = systemId; |
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} |
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/** |
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* SAX Handler that receives notification of end of DTD |
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*/ |
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@Override |
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public void endDTD() throws SAXException |
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{
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processingDTD = false; |
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logMetacat.debug("AccessControlList.endDTD - Setting processingDTD to false");
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logMetacat.debug("AccessControlList.endDTD - end DTD");
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} |
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/** |
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* SAX Handler that receives notification of the start of entities. |
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* @param name name of the entity |
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*/ |
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public void startEntity(String name) throws SAXException {
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logMetacat.debug("AccessControlList.startEntity ");
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if (name.equals("[dtd]")) {
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logMetacat.debug("AccessControlList.startEntity set processingDTD to true.");
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processingDTD = true; |
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} |
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} |
| ... | ... | |
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* @param name name of the entity |
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*/ |
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public void endEntity(String name) throws SAXException {
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logMetacat.debug("AccessControlList.endEntity ");
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if (name.equals("[dtd]")) {
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logMetacat.debug("AccessControlList.endEntity set processingDTD to false.");
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processingDTD = false; |
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} |
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} |
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}//finally |
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} |
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/** |
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* SAX Handler that receives notification of comments in the DTD |
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*/ |
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public void comment(char[] ch, int start, int length) throws SAXException |
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{
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logMetacat.trace("AccessControlList.comment - starting comment");
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} |
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/** |
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* SAX Handler that receives notification of the start of CDATA sections |
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*/ |
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public void startCDATA() throws SAXException |
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{
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logMetacat.trace("AccessControlList.startCDATA - starting CDATA");
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} |
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/** |
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* SAX Handler that receives notification of the end of CDATA sections |
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*/ |
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public void endCDATA() throws SAXException |
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{
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logMetacat.trace("AccessControlList.endCDATA - end CDATA");
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} |
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public static void main(String[] args) {
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System.out.println("text value for CHMOD (" + CHMOD + "): " + txtValue(CHMOD));
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System.out.println("text value for READ: (" + READ + "): " + txtValue(READ));
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Also available in: Unified diff
Made the class implements the interface LexicalHandler.