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Revision 122

Added by Matt Jones about 24 years ago

Modifying storage model to use DOM TEXT nodes -- update is incomplete and query code doesn not work for this checkin

View differences:

src/edu/ucsb/nceas/metacat/DBSAXHandler.java
29 29
 * A database aware Class implementing callback bethods for the SAX parser to
30 30
 * call when processing the XML stream and generating events
31 31
 */
32
public class DBSAXHandler extends DefaultXMLDocumentHandler
33
{
32
public class DBSAXHandler extends DefaultXMLDocumentHandler {
34 33

  
35 34
   static int elementNo = 0;
36 35
   static String docname = null;
......
45 44
    *
46 45
    * @param conn the JDBC connection to which information is written
47 46
    */
48
   public DBSAXHandler(Connection conn)
49
   {
47
   public DBSAXHandler(Connection conn) {
50 48
      this.conn = conn;
51 49

  
52 50
      // Create the stack for keeping track of element context
......
59 57
   }
60 58
 
61 59
   /** SAX Handler that receives notification of beginning of the document */
62
   public void startDocument() throws SAXException
63
   {
64
    System.out.println("start Document");
60
   public void startDocument() throws SAXException {
61
    if (debug) {
62
      System.out.println("start Document");
63
    }
65 64
    // Create the document node represantation as root
66 65
    DBSAXElement documentNode = new DBSAXElement(conn, docname, 0, 0);
67 66
    // Add the element to the stack, so that any text data can be 
......
70 69
   }
71 70

  
72 71
   /** SAX Handler that receives notification of end of the document */
73
   public void endDocument() throws SAXException
74
   {
75
    System.out.println("end Document");
72
   public void endDocument() throws SAXException {
73
    if (debug) {
74
      System.out.println("end Document");
75
    }
76 76
   }
77 77

  
78 78
   /** SAX Handler that receives notification of DTD. Sets the DTD */
79
   public void setDoctype(DTD dtd) throws SAXException
80
   {
81
    // here is a bug: dtd.getPublicId() and dtd.getSustemId() always return null.
82
    docname = dtd.getName();
83
    doctype = dtd.getPublicId();
84
    systemid = dtd.getSystemId();
85
    System.out.println("DOCNAME: " + docname);
86
    System.out.println("DOCTYPE: " + doctype);
87
    System.out.println("  SYSID: " + systemid);
79
   public void setDoctype(DTD dtd) throws SAXException {
80
     // here is a bug: dtd.getPublicId() and dtd.getSustemId() 
81
     // always return null.
82
     docname = dtd.getName();
83
     doctype = dtd.getPublicId();
84
     systemid = dtd.getSystemId();
85
     if (debug) {
86
       System.out.println("DOCNAME: " + docname);
87
       System.out.println("DOCTYPE: " + doctype);
88
       System.out.println("  SYSID: " + systemid);
89
     }
88 90
   }
89 91

  
90
   /** SAX Handler that receives notification of end of DTD 
91
     * All events in DTDHandler about all unparsed entities and the event in EntityResolver for the DTD file declaration
92
     * appear between setDoctype and endDoctype.
93
     * The rest of parsable external entities inside DTD file appear later in the elements from where they are referred to. */
94
   public void endDoctype() throws SAXException
95
   {
96
    System.out.println("end of DOCTYPE");
92
   /** 
93
    * SAX Handler that receives notification of end of DTD 
94
    * All events in DTDHandler about all unparsed entities and the 
95
    * event in EntityResolver for the DTD file declaration appear 
96
    * between setDoctype and endDoctype. The rest of parsable external 
97
    * entities inside DTD file appear later in the elements from where 
98
    * they are referred to. 
99
    */
100
   public void endDoctype() throws SAXException {
101
     if (debug) {
102
       System.out.println("end of DOCTYPE");
103
     }
97 104
   }
98 105

  
99 106
   /** SAX Handler that is called at the start of each XML element */
100
   public void startElement(NSName name, SAXAttrList atts) throws SAXException 
101
   {
107
   public void startElement(NSName name, SAXAttrList atts) throws SAXException {
102 108

  
103 109
      // Use the methods getQualifiedName(), getLocalName(), getNamespace()
104 110
      // and getExpandedName() in NSName interface to get Namespace
......
172 178
   }
173 179

  
174 180
   /** SAX Handler that is called for each XML text node */
175
   public void characters(char[] cbuf, int start, int len)
176
   {
181
   public void characters(char[] cbuf, int start, int len) {
177 182
      DBSAXElement currentElement = (DBSAXElement)elementStack.peek();
178
      currentElement.appendContent(cbuf,start,len);
183
      int nodeIndex = currentElement.incChildNum();
184
      String data = new String(cbuf, start, len);
185

  
186
      // Write the content of the element to the database
187
      currentElement.writeContentToDB(data, nodeIndex);
179 188
   }
180 189

  
181 190
   /** 
182 191
    * SAX Handler that is called for each XML text node that is Ignorable
183 192
    * white space
184 193
    */
185
   public void ignorableWhitespace(char[] cbuf, int start, int len)
186
   {
194
   public void ignorableWhitespace(char[] cbuf, int start, int len) {
187 195
   }
188 196

  
189
   /** SAX Handler called once for each comment found: 
190
     * node that comment may occur before or after the root element.
191
     * For now works only for comments after the root element. */
192
   public void comment(String data) throws SAXException
193
   {
194
    //if (elementNo > 0) {
197
   /** 
198
    * SAX Handler called once for each comment found: 
199
    * node that comment may occur before or after the root element.
200
    * For now works only for comments after the root element. 
201
    */
202
   public void comment(String data) throws SAXException {
195 203
      DBSAXElement currentElement = (DBSAXElement)elementStack.peek();
196 204
      int nodeIndex = currentElement.incChildNum();
197 205
      currentElement.writeCommentToDB(data, nodeIndex);
198
    //}
199 206
   }
200
   public void processingInstruction(String target, String data) throws SAXException
201
   {
207

  
208
   /** 
209
    * SAX Handler called once for each processing instruction found: 
210
    * node that PI may occur before or after the root element.
211
    */
212
   public void processingInstruction(String target, String data) 
213
          throws SAXException {
202 214
      DBSAXElement currentElement = (DBSAXElement)elementStack.peek();
203 215
      int nodeIndex = currentElement.incChildNum();
204 216
      currentElement.writePIToDB(target, data, nodeIndex);
205 217
   }
206 218

  
207 219
   /** SAX Handler that is called at the end of each XML element */
208
   public void endElement(NSName name) throws SAXException 
209
   {
220
   public void endElement(NSName name) throws SAXException {
210 221
      // Use the methods getQualifiedName(), getLocalName(), getNamespace()
211 222
      // and getExpandedName() in NSName interface to get Namespace
212 223
      // information.
......
216 227
      DBSAXElement currentElement = (DBSAXElement)elementStack.pop();
217 228
      
218 229
      // Write the content of the element to the database
219
      currentElement.writeContentToDB();
230
      // Don't need to do this if using DOM model for TEXT nodes
231
      //currentElement.writeContentToDB();
220 232
   }
221 233

  
222 234
   /** Debug routine */
src/edu/ucsb/nceas/metacat/ElementNode.java
66 66
      setElementID(nodeid);
67 67
      setParentID(parentnodeid);
68 68
      setTagName(nodename);
69
      appendContent(nodedata);
69
      //appendContent(nodedata);
70 70

  
71 71
      // Create child nodes (elements or attributes)
72 72
      setChildrenNodes(nodeid);
......
120 120
        System.out.println("Error getting id: " + e.getMessage());
121 121
      }
122 122

  
123
      if (nodetype.equals("ELEMENT")) {
123
      // Record our node type
124
      setNodeType(nodetype);
125

  
126
      if (nodetype.equals("ELEMENT") || nodetype.equals("DOCUMENT") ) {
124 127
        setElementID(element_id);
125 128
        setParentID(parentnodeid);
126 129
        setTagName(nodename);
127
        appendContent(nodedata);
130
        //appendContent(nodedata);
128 131
      }
129 132
    }
130 133

  
......
147 150
                  ",'<','&lt;') " +
148 151
                  ",'>','&gt;') " +
149 152
                  "FROM xml_nodes WHERE parentnodeid = ?");
153

  
154
                  // ORDER BY nodeindex
155

  
150 156
        // Bind the values to the query
151 157
        pstmt.setLong(1, nodeid);
152 158

  
......
163 169
                nodename = rs.getString(4);
164 170
                nodedata = rs.getString(5);
165 171

  
166
                if (nodetype.equals("ELEMENT")) {
172
                // Record our node type
173
                setNodeType(nodetype);
174

  
175
                if ( (nodetype.equals("ELEMENT")) ||
176
                     (nodetype.equals("DOCUMENT")) 
177
                   ) {
167 178
                  ReaderElement child = new ReaderElement(conn,
168 179
                                element_id,parentnodeid,nodename,nodedata);
169 180
                  children.add(child);
170 181
                } else if (nodetype.equals("ATTRIBUTE")) {
171 182
                  setAttribute(nodename,nodedata);
183
                } else if (nodetype.equals("TEXT")) {
184
                  appendContent(nodedata);
172 185
                }
173 186

  
174 187
              } catch (SQLException e) {
......
198 211
    public String toString ()
199 212
    {
200 213
        StringBuffer value = new StringBuffer();
201
        value.append('<');
202
        value.append(getTagName());
203
        value.append(getAttributes().toString());
204
        value.append('>');
205 214

  
215
        String nodetype = getNodeType();
216
        String nodename = getTagName();
217
        System.out.println("NODETYPE  ====>  " + nodetype + 
218
                           "(" + nodename +")");
219
        if (nodetype.equals("ELEMENT")) {
220
          value.append('<');
221
          value.append(getTagName());
222
          value.append(getAttributes().toString());
223
          value.append('>');
224
        } 
225
        //else { value.append(getNodeType()); }
226

  
206 227
        // Process children recursively here
207
        // Or do it in ReaderElement using a stack so we don;t have the
208
        // whole thing in memory at once?
209 228
        ReaderElement child = null;
210 229
        Enumeration e = children.elements();
211 230
        while (e.hasMoreElements()) {
212 231
          child = (ReaderElement)e.nextElement(); 
213
          value.append(child);
232
          try {
233
            value.append(child);
234
          } catch (NullPointerException npe) {
235
value.append("M");
236
          }
214 237
        }
215 238

  
216 239
        String cont = getContent();
......
218 241
          value.append(cont);
219 242
        }
220 243

  
221
        value.append("</");
222
        value.append(getTagName());
223
        value.append('>');
244
        if (nodetype.equals("ELEMENT")) {
245
          value.append("</");
246
          value.append(getTagName());
247
          value.append('>');
248
        }
249
        //else { value.append(getNodeType()); }
250

  
224 251
        return value.toString();
225 252
    }
226 253
}
src/edu/ucsb/nceas/metacat/DBSAXDocument.java
30 30
     *
31 31
     * @param conn the JDBC Connection to which all information is written
32 32
     * @param rootnodeid - sequence id of the root node in the document
33
     * @param docname - the name of DTD, i.e. the name immediately following the DOCTYPE keyword - should be the root element name.
34
     * (Oracle's and IBM parsers are not aware if it is not the root element name)
35
     * @param doctype - Public ID of the DTD, i.e. the name immediately following the PUBLIC keyword in DOCTYPE declaration.
33
     * @param docname - the name of DTD, i.e. the name immediately following 
34
     *        the DOCTYPE keyword - should be the root element name.
35
     *        (Oracle's and IBM parsers are not aware if it is not the 
36
     *        root element name)
37
     * @param doctype - Public ID of the DTD, i.e. the name immediately 
38
     *                  following the PUBLIC keyword in DOCTYPE declaration.
36 39
     *
37 40
     */
38
    public DBSAXDocument (Connection conn, long rootnodeid, String docname, String doctype)
41
    public DBSAXDocument (Connection conn, long rootnodeid, String docname, 
42
                          String doctype)
39 43
    {
40 44
      this.conn = conn;
41 45
      this.rootnodeid = rootnodeid;
42 46
      this.docname = docname;
43 47
      this.doctype = doctype;
44 48
      writeDocumentToDB();
45
      System.out.println("DBSAXDocument.writeDocumentToDB");
46 49
    }
47 50
    
48 51
    /** creates SQL code and inserts new document into DB connection */
......
51 54
          conn.setAutoCommit(false);
52 55
          PreparedStatement pstmt;
53 56
          pstmt = conn.prepareStatement(
54
                "INSERT INTO xml_documents (docid, rootnodeid, docname, doctype) " +
57
                "INSERT INTO xml_documents " +
58
                "(docid, rootnodeid, docname, doctype) " +
55 59
                "VALUES (null, ?, ?, ?)");
56 60

  
57 61
          // Bind the values to the query
src/edu/ucsb/nceas/metacat/DBEntityResolver.java
1 1
/**
2
 *        Name: DBEntityResolver.java
3
 *     Purpose: A Class that implements org.xml.sax.EntityResolver interface
2
 *      Name: DBEntityResolver.java
3
 *   Purpose: A Class that implements org.xml.sax.EntityResolver interface
4 4
 *              for resolving external entities
5
 *   Copyright: 2000 Regents of the University of California and the
5
 * Copyright: 2000 Regents of the University of California and the
6 6
 *              National Center for Ecological Analysis and Synthesis
7
 *     Authors: Jivka Bojilova
7
 *   Authors: Jivka Bojilova
8 8
 *
9
 *     Version: '$Id$'
9
 *   Version: '$Id$'
10 10
 */
11 11

  
12 12
package edu.ucsb.nceas.metacat;
......
20 20
import java.util.EmptyStackException;
21 21

  
22 22
/** 
23
 * A database aware Class implementing EntityResolver interface for the SAX parser to
24
 * call when processing the XML stream and intercepting any external entities
25
 * (including the external DTD subset and external parameter entities, if any) before including them.
23
 * A database aware Class implementing EntityResolver interface for the SAX 
24
 * parser to call when processing the XML stream and intercepting any 
25
 * external entities (including the external DTD subset and external 
26
 * parameter entities, if any) before including them.
26 27
 */
27 28
public class DBEntityResolver implements EntityResolver
28 29
{
......
42 43
   }
43 44
   
44 45
   
45
   /** The Parser call this method before opening any external entity 
46
     * except the top-level document entity (including the external DTD subset,
47
     * external entities referenced within the DTD, and external entities referenced 
48
     * within the document element)*/
46
   /** 
47
    * The Parser call this method before opening any external entity 
48
    * except the top-level document entity (including the external DTD subset,
49
    * external entities referenced within the DTD, and external entities 
50
    * referenced within the document element)
51
    */
49 52
   public InputSource resolveEntity (String publicId, String systemId)
50 53
            throws MalformedURLException
51 54
   {
......
55 58
     
56 59
     if (publicId != null) {
57 60
        pIdCounter += 1;
58
        System.out.println("from DBEntityResolver: current element is " + DBSAXHandler.elementNo);
59
        System.out.println("from DBEntityResolver: " + pIdCounter + " " + publicId);
61
        System.out.println("from DBEntityResolver: current element is " + 
62
                           DBSAXHandler.elementNo);
63
        System.out.println("from DBEntityResolver: " + pIdCounter + " " + 
64
                           publicId);
60 65
        // look at the db XML Catalog and get dbSystemId by this publicId
61 66
        if (currentElementNo == 0) {
62 67
            doctype = publicId;
......
71 76
            new URL(dbSystemId);
72 77
            return new InputSource(dbSystemId);
73 78
        } 
74
        /*else {
75
            // look at the db XML Catalog and get dbSystemId by this publicId for a given doctype
79
/*
80
          else {
81
            // look at the db XML Catalog and get dbSystemId by this 
82
            // publicId for a given doctype
76 83
            dbSystemId = getEntitySystemID (conn, doctype, publicId);
77 84
            if (dbSystemId == "")
78
                // register publicId in db for a given doctype and use the provided systemId
85
                // register publicId in db for a given doctype and 
86
                // use the provided systemId
79 87
                if (systemId != "") {
80 88
                    new URL(systemId);
81 89
                    registerEntityPublicID (conn, doctype, publicId, systemId);
......
83 91
                }
84 92
            new URL(dbSystemId);
85 93
            return new InputSource(dbSystemId);
86
        }*/  
94
        }
95
*/  
87 96
     }
88 97
     // publicId is null => doctype is null => doctype = docname
89 98
     if ( systemId != null) {
......
104 113
     return null;
105 114
   }
106 115

  
107
   /** Look at db XML Catalog to get System ID (if any) for that doctype.
108
     * Return empty string if there are not */
116
   /** 
117
    * Look at db XML Catalog to get System ID (if any) for that doctype.
118
    * Return empty string if there are not 
119
    */
109 120
   private String getDTDSystemID (Connection conn, String doctype)  {
110 121
        String system_id = "";
111 122
        Statement stmt;
112 123
        try {
113 124
          stmt = conn.createStatement();
114
          System.out.println("DOCTYPE:" + doctype);
115 125
          stmt.execute("SELECT system_id FROM xml_catalog " + 
116
                       "WHERE entity_type = 'DTD' AND public_id = '" + doctype + "'");
126
                       "WHERE entry_type = 'DTD' AND public_id = '" + 
127
                       doctype + "'");
117 128
          try {
118 129
            ResultSet rs = stmt.getResultSet();
119 130
            try {
......
122 133
                try {
123 134
                  system_id = rs.getString(1);
124 135
                } catch (SQLException e) {
125
                  System.out.println("DBEntityResolver.getDTDSystemID() - Error with getString: " + e.getMessage());
136
                  System.out.println("DBEntityResolver.getDTDSystemID() " +
137
                             "- Error with getString: " + e.getMessage());
126 138
                }
127 139
              }
128 140
            } catch (SQLException e) {
129
              System.out.println("DBEntityResolver.getDTDSystemID() - Error with next: " + e.getMessage());
141
              System.out.println("DBEntityResolver.getDTDSystemID() " +
142
                             "- Error with next: " + e.getMessage());
130 143
            }
131 144
          } catch (SQLException e) {
132
            System.out.println("DBEntityResolver.getDTDSystemID() - Error with getrset: " + e.getMessage());
145
            System.out.println("DBEntityResolver.getDTDSystemID() " +
146
                             "- Error with getrset: " + e.getMessage());
133 147
          }
134 148
          stmt.close();
135 149
        } catch (SQLException e) {
136
          System.out.println("DBEntityResolver.getDTDSystemID() - Error getting id: " + e.getMessage());
150
          System.out.println("DBEntityResolver.getDTDSystemID() " +
151
                             "- Error getting id: " + e.getMessage());
137 152
          System.exit(1);
138 153
        }
139 154

  
......
141 156
        return system_id;
142 157
   }
143 158

  
144
   /** Register DTD System ID in db XML Catalog */
145
   private void registerDTDSystemID (Connection conn, String doctype, String publicId, String systemId)
159
   /** 
160
    * Register DTD System ID in db XML Catalog 
161
    */
162
   private void registerDTDSystemID (Connection conn, String doctype, 
163
                                     String publicId, String systemId)
146 164
   {
147 165
        try {
148
            java.net.URLConnection urlConn = (new URL(systemId)).openConnection();
166
            java.net.URLConnection urlConn = 
167
                     (new URL(systemId)).openConnection();
149 168
            urlConn.connect();
150 169
        } catch (java.io.IOException e) {
151 170
            System.out.println("IOException: " + e.getMessage());
......
155 174
          conn.setAutoCommit(false);
156 175
          PreparedStatement pstmt;
157 176
          pstmt = conn.prepareStatement(
158
                "INSERT INTO xml_catalog (entity_id, entity_type, source_doctype, public_id, system_id) " +
177
                "INSERT INTO xml_catalog " +
178
                "(catalog_id, entry_type, source_doctype, " +
179
                "public_id, system_id) " +
159 180
                "VALUES (null, 'DTD', ?, ?, ?)");
160 181
          // Bind the values to the query
161 182
          pstmt.setString(1, doctype);
......
171 192
        }
172 193
   }
173 194
   
174
   /** Look at db XML Catalog to get System ID (if any) for that Public ID and doctype.
175
     * Return empty string if there are not */
176
   private String getEntitySystemID (Connection conn, String doctype, String publicId)
195
   /** 
196
    * Look at db XML Catalog to get System ID (if any) for that Public ID 
197
    * and doctype. Return empty string if there are not 
198
    */
199
   private String getEntitySystemID (Connection conn, String doctype, 
200
                                     String publicId)
177 201
   {
178 202
        String system_id = "";
179 203
        Statement stmt;
180 204
        try {
181 205
          stmt = conn.createStatement();
182 206
          stmt.execute("SELECT system_id FROM xml_catalog " + 
183
                       "WHERE entity_type = 'ENTITY' AND source_doctype = '" + doctype + "' AND public_id = '" + publicId + "'");
207
                       "WHERE entry_type = 'ENTITY' AND source_doctype = '" + 
208
                       doctype + "' AND public_id = '" + publicId + "'");
184 209
          try {
185 210
            ResultSet rs = stmt.getResultSet();
186 211
            try {
......
189 214
                try {
190 215
                  system_id = rs.getString(1);
191 216
                } catch (SQLException e) {
192
                  System.out.println("DBEntityResolver.getEntitySystemID() - Error with getString: " + e.getMessage());
217
                  System.out.println("DBEntityResolver.getEntitySystemID() " +
218
                         "- Error with getString: " + e.getMessage());
193 219
                }
194 220
              }
195 221
            } catch (SQLException e) {
196
              System.out.println("DBEntityResolver.getEntitySystemID() - Error with next: " + e.getMessage());
222
              System.out.println("DBEntityResolver.getEntitySystemID() " +
223
                         "- Error with next: " + e.getMessage());
197 224
            }
198 225
          } catch (SQLException e) {
199
            System.out.println("DBEntityResolver.getEntitySystemID() - Error with getrset: " + e.getMessage());
226
            System.out.println("DBEntityResolver.getEntitySystemID() " +
227
                         "- Error with getrset: " + e.getMessage());
200 228
          }
201 229
          stmt.close();
202 230
        } catch (SQLException e) {
203
          System.out.println("DBEntityResolver.getEntitySystemID() - Error getting id: " + e.getMessage());
231
          System.out.println("DBEntityResolver.getEntitySystemID() " +
232
                         "- Error getting id: " + e.getMessage());
204 233
        }
205 234

  
206 235
        // return the selected System ID number
207 236
        return system_id;
208 237
   }
209 238

  
210
   /** Register Public ID in db XML Catalog */
211
   private void registerEntityPublicID (Connection conn, String doctype, String publicId, String systemId)
239
   /** 
240
    * Register Public ID in db XML Catalog 
241
    */
242
   private void registerEntityPublicID (Connection conn, String doctype, 
243
                                        String publicId, String systemId)
212 244
   {
213 245
        try {
214 246
          conn.setAutoCommit(false);
215 247
          PreparedStatement pstmt;
216 248
          pstmt = conn.prepareStatement(
217
                "INSERT INTO xml_catalog (entity_id, entity_name, entity_type, source_doctype, public_id, system_id) " +
218
                "VALUES (null, null, 'ENTITY', ?, ?, ?)");
249
                "INSERT INTO xml_catalog (catalog_id, entry_type, " +
250
                "source_doctype, public_id, system_id) " +
251
                "VALUES (null, 'ENTITY', ?, ?, ?)");
219 252
          // Bind the values to the query
220 253
          pstmt.setString(1, doctype);
221 254
          pstmt.setString(2, publicId);
......
229 262
          System.out.println(e.getMessage());
230 263
        }
231 264
   }
232

  
233 265
}
src/edu/ucsb/nceas/metacat/DBSAXNode.java
74 74
    }
75 75

  
76 76
    /** creates SQL code and inserts comment into DB connection */
77
    void writeCommentToDB(String data, int nodeIndex) {
77
    public void writeCommentToDB(String data, int nodeIndex) {
78 78
        try {
79 79
          PreparedStatement pstmt;
80 80
          pstmt = conn.prepareStatement(
81
                "INSERT INTO xml_nodes (nodeid, nodetype, " +
82
                "nodename, parentnodeid, nodedata, nodeindex) VALUES (null, ?, null, ?, ?, ?)");
81
                "INSERT INTO xml_nodes (nodeid, nodetype, nodename, " +
82
                "parentnodeid, nodedata, nodeindex) " +
83
                "VALUES (null, ?, null, ?, ?, ?)");
83 84

  
84 85
          // Bind the values to the query
85 86
          pstmt.setString(1, "COMMENT");
......
95 96
    }
96 97

  
97 98
    /** creates SQL code and inserts PI into DB connection */
98
    void writePIToDB(String target, String data, int nodeIndex) {
99
    public void writePIToDB(String target, String data, int nodeIndex) {
99 100
        try {
100 101
          PreparedStatement pstmt;
101 102
          pstmt = conn.prepareStatement(
102
                "INSERT INTO xml_nodes (nodeid, nodetype, " +
103
                "nodename, parentnodeid, nodedata, nodeindex) VALUES (null, ?, ?, ?, ?, ?)");
103
                "INSERT INTO xml_nodes (nodeid, nodetype, nodename, " +
104
                "parentnodeid, nodedata, nodeindex) " +
105
                "VALUES (null, ?, ?, ?, ?, ?)");
104 106

  
105 107
          // Bind the values to the query
106 108
          pstmt.setString(1, "PI");
......
116 118
        }
117 119
    }
118 120

  
119
    /** creates SQL code to put nodename for the document node into DB connection */
120
    void writeNodename(String nodename) {
121
    /** 
122
     * creates SQL code to put nodename for the document node 
123
     * into DB connection 
124
     */
125
    public void writeNodename(String nodename) {
121 126
        try {
122 127
          PreparedStatement pstmt;
123 128
          pstmt = conn.prepareStatement(
......
199 204
    }
200 205

  
201 206
    /** Write the element content to the db connection */
202
    public void writeContentToDB() {
207
    public void writeContentToDB(String content, int nodeIndex) {
203 208
        try {
204 209
          PreparedStatement pstmt = conn.prepareStatement(
205
                "UPDATE xml_nodes SET nodedata = ? WHERE nodeid = ?");
206

  
210
                "INSERT INTO xml_nodes (nodeid, nodetype, nodename, " +
211
                "parentnodeid, nodedata, nodeindex) " +
212
                "VALUES (null, ?, null, ?, ?, ?)");
207 213
          // Bind the values to the query
208
          pstmt.setString(1, getContent());
214
          pstmt.setString(1, "TEXT");
209 215
          pstmt.setLong(2, getElementID());
216
          pstmt.setString(3, content);
217
          pstmt.setInt(4, nodeIndex);
210 218

  
211 219
          // Do the update
212 220
          pstmt.execute();
src/edu/ucsb/nceas/metacat/DBSAXElement.java
74 74
    }
75 75

  
76 76
    /** creates SQL code and inserts comment into DB connection */
77
    void writeCommentToDB(String data, int nodeIndex) {
77
    public void writeCommentToDB(String data, int nodeIndex) {
78 78
        try {
79 79
          PreparedStatement pstmt;
80 80
          pstmt = conn.prepareStatement(
81
                "INSERT INTO xml_nodes (nodeid, nodetype, " +
82
                "nodename, parentnodeid, nodedata, nodeindex) VALUES (null, ?, null, ?, ?, ?)");
81
                "INSERT INTO xml_nodes (nodeid, nodetype, nodename, " +
82
                "parentnodeid, nodedata, nodeindex) " +
83
                "VALUES (null, ?, null, ?, ?, ?)");
83 84

  
84 85
          // Bind the values to the query
85 86
          pstmt.setString(1, "COMMENT");
......
95 96
    }
96 97

  
97 98
    /** creates SQL code and inserts PI into DB connection */
98
    void writePIToDB(String target, String data, int nodeIndex) {
99
    public void writePIToDB(String target, String data, int nodeIndex) {
99 100
        try {
100 101
          PreparedStatement pstmt;
101 102
          pstmt = conn.prepareStatement(
102
                "INSERT INTO xml_nodes (nodeid, nodetype, " +
103
                "nodename, parentnodeid, nodedata, nodeindex) VALUES (null, ?, ?, ?, ?, ?)");
103
                "INSERT INTO xml_nodes (nodeid, nodetype, nodename, " +
104
                "parentnodeid, nodedata, nodeindex) " +
105
                "VALUES (null, ?, ?, ?, ?, ?)");
104 106

  
105 107
          // Bind the values to the query
106 108
          pstmt.setString(1, "PI");
......
116 118
        }
117 119
    }
118 120

  
119
    /** creates SQL code to put nodename for the document node into DB connection */
120
    void writeNodename(String nodename) {
121
    /** 
122
     * creates SQL code to put nodename for the document node 
123
     * into DB connection 
124
     */
125
    public void writeNodename(String nodename) {
121 126
        try {
122 127
          PreparedStatement pstmt;
123 128
          pstmt = conn.prepareStatement(
......
199 204
    }
200 205

  
201 206
    /** Write the element content to the db connection */
202
    public void writeContentToDB() {
207
    public void writeContentToDB(String content, int nodeIndex) {
203 208
        try {
204 209
          PreparedStatement pstmt = conn.prepareStatement(
205
                "UPDATE xml_nodes SET nodedata = ? WHERE nodeid = ?");
206

  
210
                "INSERT INTO xml_nodes (nodeid, nodetype, nodename, " +
211
                "parentnodeid, nodedata, nodeindex) " +
212
                "VALUES (null, ?, null, ?, ?, ?)");
207 213
          // Bind the values to the query
208
          pstmt.setString(1, getContent());
214
          pstmt.setString(1, "TEXT");
209 215
          pstmt.setLong(2, getElementID());
216
          pstmt.setString(3, content);
217
          pstmt.setInt(4, nodeIndex);
210 218

  
211 219
          // Do the update
212 220
          pstmt.execute();
src/edu/ucsb/nceas/metacat/ReaderElement.java
66 66
      setElementID(nodeid);
67 67
      setParentID(parentnodeid);
68 68
      setTagName(nodename);
69
      appendContent(nodedata);
69
      //appendContent(nodedata);
70 70

  
71 71
      // Create child nodes (elements or attributes)
72 72
      setChildrenNodes(nodeid);
......
120 120
        System.out.println("Error getting id: " + e.getMessage());
121 121
      }
122 122

  
123
      if (nodetype.equals("ELEMENT")) {
123
      // Record our node type
124
      setNodeType(nodetype);
125

  
126
      if (nodetype.equals("ELEMENT") || nodetype.equals("DOCUMENT") ) {
124 127
        setElementID(element_id);
125 128
        setParentID(parentnodeid);
126 129
        setTagName(nodename);
127
        appendContent(nodedata);
130
        //appendContent(nodedata);
128 131
      }
129 132
    }
130 133

  
......
147 150
                  ",'<','&lt;') " +
148 151
                  ",'>','&gt;') " +
149 152
                  "FROM xml_nodes WHERE parentnodeid = ?");
153

  
154
                  // ORDER BY nodeindex
155

  
150 156
        // Bind the values to the query
151 157
        pstmt.setLong(1, nodeid);
152 158

  
......
163 169
                nodename = rs.getString(4);
164 170
                nodedata = rs.getString(5);
165 171

  
166
                if (nodetype.equals("ELEMENT")) {
172
                // Record our node type
173
                setNodeType(nodetype);
174

  
175
                if ( (nodetype.equals("ELEMENT")) ||
176
                     (nodetype.equals("DOCUMENT")) 
177
                   ) {
167 178
                  ReaderElement child = new ReaderElement(conn,
168 179
                                element_id,parentnodeid,nodename,nodedata);
169 180
                  children.add(child);
170 181
                } else if (nodetype.equals("ATTRIBUTE")) {
171 182
                  setAttribute(nodename,nodedata);
183
                } else if (nodetype.equals("TEXT")) {
184
                  appendContent(nodedata);
172 185
                }
173 186

  
174 187
              } catch (SQLException e) {
......
198 211
    public String toString ()
199 212
    {
200 213
        StringBuffer value = new StringBuffer();
201
        value.append('<');
202
        value.append(getTagName());
203
        value.append(getAttributes().toString());
204
        value.append('>');
205 214

  
215
        String nodetype = getNodeType();
216
        String nodename = getTagName();
217
        System.out.println("NODETYPE  ====>  " + nodetype + 
218
                           "(" + nodename +")");
219
        if (nodetype.equals("ELEMENT")) {
220
          value.append('<');
221
          value.append(getTagName());
222
          value.append(getAttributes().toString());
223
          value.append('>');
224
        } 
225
        //else { value.append(getNodeType()); }
226

  
206 227
        // Process children recursively here
207
        // Or do it in ReaderElement using a stack so we don;t have the
208
        // whole thing in memory at once?
209 228
        ReaderElement child = null;
210 229
        Enumeration e = children.elements();
211 230
        while (e.hasMoreElements()) {
212 231
          child = (ReaderElement)e.nextElement(); 
213
          value.append(child);
232
          try {
233
            value.append(child);
234
          } catch (NullPointerException npe) {
235
value.append("M");
236
          }
214 237
        }
215 238

  
216 239
        String cont = getContent();
......
218 241
          value.append(cont);
219 242
        }
220 243

  
221
        value.append("</");
222
        value.append(getTagName());
223
        value.append('>');
244
        if (nodetype.equals("ELEMENT")) {
245
          value.append("</");
246
          value.append(getTagName());
247
          value.append('>');
248
        }
249
        //else { value.append(getNodeType()); }
250

  
224 251
        return value.toString();
225 252
    }
226 253
}
src/edu/ucsb/nceas/metacat/DBDTDHandler.java
20 20
import java.util.EmptyStackException;
21 21

  
22 22
/** 
23
 * A database aware Class implementing DTDHandler interface for the SAX parser to
24
 * call when processing the XML stream and intercepting notations and unparsed entities
23
 * A database aware Class implementing DTDHandler interface for the SAX 
24
 * parser to call when processing the XML stream and intercepting notations 
25
 * and unparsed entities
25 26
 */
26 27
public class DBDTDHandler implements DTDHandler
27 28
{
......
47 48
    return;
48 49
   }
49 50
   
50
   /** All are reported after startDocument and before first startElement event*/
51
   public void unparsedEntityDecl(String name, String publicId, String systemId, String notationName)
51
   /** All are reported after startDocument and before first 
52
    * startElement event
53
    */
54
   public void unparsedEntityDecl(String name, String publicId, 
55
                                  String systemId, String notationName)
52 56
            throws SAXException
53 57
   {
54 58
    System.out.println("from DBDTDHandler.unparsedEntityDecl");
......
62 66
    return;
63 67
   }
64 68

  
65
   /** Look at db XML Catalog to get System ID (if any) for that Public ID and doctype.
66
     * Return empty string if there are not */
67
   private String getEntitySystemID (Connection conn, String doctype, String publicId)
69
   /** 
70
    * Look at db XML Catalog to get System ID (if any) for that Public ID 
71
    * and doctype.
72
    * Return empty string if there are not 
73
    */
74
/*
75
   private String getEntitySystemID (Connection conn, String doctype, 
76
                                     String publicId)
68 77
   {
69 78
        String system_id = "";
70 79
        Statement stmt;
71 80
        try {
72 81
          stmt = conn.createStatement();
73 82
          stmt.execute("SELECT system_id FROM xml_catalog " + 
74
                       "WHERE entity_type = 'ENTITY' AND source_doctype = '" + doctype + "' AND public_id = '" + publicId + "'");
83
                       "WHERE entry_type = 'ENTITY' AND source_doctype = '" + 
84
                        doctype + "' AND public_id = '" + publicId + "'");
75 85
          try {
76 86
            ResultSet rs = stmt.getResultSet();
77 87
            try {
......
80 90
                try {
81 91
                  system_id = rs.getString(1);
82 92
                } catch (SQLException e) {
83
                  System.out.println("DBDTDHandler.getEntitySystemID() - Error with getString: " + e.getMessage());
93
                  System.out.println("DBDTDHandler.getEntitySystemID() " +
94
                         "- Error with getString: " + e.getMessage());
84 95
                }
85 96
              }
86 97
            } catch (SQLException e) {
87
              System.out.println("DBDTDHandler.getEntitySystemID() - Error with next: " + e.getMessage());
98
              System.out.println("DBDTDHandler.getEntitySystemID() " +
99
                         "- Error with next: " + e.getMessage());
88 100
            }
89 101
          } catch (SQLException e) {
90
            System.out.println("DBDTDHandler.getEntitySystemID() - Error with getrset: " + e.getMessage());
102
            System.out.println("DBDTDHandler.getEntitySystemID() " +
103
                         "- Error with getrset: " + e.getMessage());
91 104
          }
92 105
          stmt.close();
93 106
        } catch (SQLException e) {
94
          System.out.println("DBDTDHandler.getEntitySystemID() - Error getting id: " + e.getMessage());
107
          System.out.println("DBDTDHandler.getEntitySystemID() " +
108
                         "- Error getting id: " + e.getMessage());
95 109
        }
96 110

  
97 111
        // return the selected System ID
98 112
        return system_id;
99 113
   }
100

  
101
   /** Register Public ID in db XML Catalog */
102
   private void registerEntityPublicID (Connection conn, String doctype, String publicId, String systemId)
114
*/
115
   /** 
116
    * Register Public ID in db XML Catalog 
117
    */
118
/*
119
   private void registerEntityPublicID (Connection conn, String doctype, 
120
                                        String publicId, String systemId)
103 121
   {
104 122
        try {
105 123
          conn.setAutoCommit(false);
106 124
          PreparedStatement pstmt;
107 125
          pstmt = conn.prepareStatement(
108
                "INSERT INTO xml_catalog (entity_id, entity_name, entity_type, source_doctype, public_id, system_id) " +
126
                "INSERT INTO xml_catalog (entity_id, entity_name, " +
127
                "entry_type, source_doctype, public_id, system_id) " +
109 128
                "VALUES (null, null, 'ENTITY', ?, ?, ?)");
110 129
          // Bind the values to the query
111 130
          pstmt.setString(1, doctype);
......
120 139
          System.out.println(e.getMessage());
121 140
        }
122 141
   }
123
   
142
*/
143

  
124 144
}
src/edu/ucsb/nceas/metacat/DBTransform.java
95 95
      pstmt =
96 96
        conn.prepareStatement("SELECT system_id " +
97 97
                "FROM xml_catalog " +
98
                "WHERE entity_type LIKE ? " +
98
                "WHERE entry_type LIKE ? " +
99 99
                "AND source_doctype LIKE ? " +
100 100
                "AND target_doctype LIKE ? ");
101 101
      // Bind the values to the query
src/edu/ucsb/nceas/metacat/BasicNode.java
24 24
    private Hashtable	attributes;
25 25
    private int         childNum;
26 26
    private int         nodeIndex;
27
    private String      nodeType;
27 28

  
28 29
    /** Construct a Basic Element */
29 30
    public BasicElement () {
......
35 36
     *
36 37
     * @param tagname the name of the element
37 38
     * @param parent_id the id number of the parent element
38
     * @param nodeIndex - number of the element in the order for a given parent node
39
     * Every element initializes childNum to 0 when created and has interface incChildNum
40
     * when new child is created
39
     * @param nodeIndex - order of node among siblings in parent node
40
     *                    Every element initializes childNum to 0 when 
41
     *                    created and has interface incChildNum
42
     *                    when new child is created
41 43
     */
42 44
    public BasicElement (String tagname, long parent_id, int nodeIndex) {
43 45
      this();
......
53 55
     * @param tagname the name of the element
54 56
     * @param parent_id the id number of the parent element
55 57
     */
56
    public BasicElement (long element_id, String tagname, long parent_id, int nodeIndex) {
58
    public BasicElement (long element_id, String tagname, long parent_id, 
59
                         int nodeIndex) {
57 60
      this(tagname,parent_id,nodeIndex);
58 61
      this.element_id = element_id;
59 62
    }
......
121 124
      while (attList.hasMoreElements()) {
122 125
        attName = (String)attList.nextElement();
123 126
        attValue = (String)attributes.get(attName);
124
        buf.append(" ").append(attName).append("=\"").append(attValue).append("\"");        
127
        buf.append(" ").append(attName).append("=\"");
128
        buf.append(attValue).append("\"");        
125 129
      }
126 130
      return buf.toString();      
127 131
    }
......
166 170
    public int incChildNum() {
167 171
      return ++this.childNum;    
168 172
    }    
173

  
174
    /** Get the type of this node */
175
    public String getNodeType() 
176
    { 
177
      return nodeType; 
178
    }
179

  
180
    /** Set the type of this node */
181
    public void setNodeType(String type) 
182
    { 
183
      this.nodeType = type; 
184
    }
169 185
}
src/edu/ucsb/nceas/metacat/BasicElement.java
24 24
    private Hashtable	attributes;
25 25
    private int         childNum;
26 26
    private int         nodeIndex;
27
    private String      nodeType;
27 28

  
28 29
    /** Construct a Basic Element */
29 30
    public BasicElement () {
......
35 36
     *
36 37
     * @param tagname the name of the element
37 38
     * @param parent_id the id number of the parent element
38
     * @param nodeIndex - number of the element in the order for a given parent node
39
     * Every element initializes childNum to 0 when created and has interface incChildNum
40
     * when new child is created
39
     * @param nodeIndex - order of node among siblings in parent node
40
     *                    Every element initializes childNum to 0 when 
41
     *                    created and has interface incChildNum
42
     *                    when new child is created
41 43
     */
42 44
    public BasicElement (String tagname, long parent_id, int nodeIndex) {
43 45
      this();
......
53 55
     * @param tagname the name of the element
54 56
     * @param parent_id the id number of the parent element
55 57
     */
56
    public BasicElement (long element_id, String tagname, long parent_id, int nodeIndex) {
58
    public BasicElement (long element_id, String tagname, long parent_id, 
59
                         int nodeIndex) {
57 60
      this(tagname,parent_id,nodeIndex);
58 61
      this.element_id = element_id;
59 62
    }
......
121 124
      while (attList.hasMoreElements()) {
122 125
        attName = (String)attList.nextElement();
123 126
        attValue = (String)attributes.get(attName);
124
        buf.append(" ").append(attName).append("=\"").append(attValue).append("\"");        
127
        buf.append(" ").append(attName).append("=\"");
128
        buf.append(attValue).append("\"");        
125 129
      }
126 130
      return buf.toString();      
127 131
    }
......
166 170
    public int incChildNum() {
167 171
      return ++this.childNum;    
168 172
    }    
173

  
174
    /** Get the type of this node */
175
    public String getNodeType() 
176
    { 
177
      return nodeType; 
178
    }
179

  
180
    /** Set the type of this node */
181
    public void setNodeType(String type) 
182
    { 
183
      this.nodeType = type; 
184
    }
169 185
}

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