| 1 |
21
|
jones
|
/**
|
| 2 |
203
|
jones
|
* '$RCSfile$'
|
| 3 |
|
|
* Purpose: A Class that represents an XML node and its contents
|
| 4 |
|
|
* Copyright: 2000 Regents of the University of California and the
|
| 5 |
|
|
* National Center for Ecological Analysis and Synthesis
|
| 6 |
|
|
* Authors: Matt Jones
|
| 7 |
21
|
jones
|
*
|
| 8 |
203
|
jones
|
* '$Author$'
|
| 9 |
|
|
* '$Date$'
|
| 10 |
|
|
* '$Revision$'
|
| 11 |
21
|
jones
|
*/
|
| 12 |
|
|
|
| 13 |
74
|
jones
|
package edu.ucsb.nceas.metacat;
|
| 14 |
21
|
jones
|
|
| 15 |
|
|
import java.io.IOException;
|
| 16 |
|
|
import java.util.Hashtable;
|
| 17 |
|
|
import java.util.Enumeration;
|
| 18 |
126
|
jones
|
import java.util.Vector;
|
| 19 |
21
|
jones
|
|
| 20 |
134
|
jones
|
/** A Class that represents an XML node and its contents */
|
| 21 |
129
|
jones
|
public class BasicNode {
|
| 22 |
21
|
jones
|
|
| 23 |
133
|
jones
|
private long node_id;
|
| 24 |
|
|
private String tagname;
|
| 25 |
|
|
private long parent_id;
|
| 26 |
149
|
bojilova
|
private long rootnode_id;
|
| 27 |
162
|
bojilova
|
private String doc_id;
|
| 28 |
72
|
bojilova
|
private Hashtable attributes;
|
| 29 |
|
|
private int childNum;
|
| 30 |
|
|
private int nodeIndex;
|
| 31 |
122
|
jones
|
private String nodeType;
|
| 32 |
162
|
bojilova
|
private Vector children;
|
| 33 |
21
|
jones
|
|
| 34 |
135
|
jones
|
/** Construct a Basic Node */
|
| 35 |
129
|
jones
|
public BasicNode () {
|
| 36 |
126
|
jones
|
children = new Vector();
|
| 37 |
23
|
jones
|
attributes = new Hashtable();
|
| 38 |
126
|
jones
|
this.childNum = 0;
|
| 39 |
23
|
jones
|
}
|
| 40 |
|
|
|
| 41 |
135
|
jones
|
/**
|
| 42 |
|
|
* Construct a Basic Node
|
| 43 |
31
|
jones
|
*
|
| 44 |
134
|
jones
|
* @param tagname the name of the node
|
| 45 |
135
|
jones
|
*/
|
| 46 |
|
|
public BasicNode (String tagname) {
|
| 47 |
|
|
this();
|
| 48 |
|
|
this.tagname = tagname;
|
| 49 |
|
|
}
|
| 50 |
|
|
|
| 51 |
|
|
/**
|
| 52 |
|
|
* Construct a Basic Node
|
| 53 |
|
|
*
|
| 54 |
|
|
* @param tagname the name of the node
|
| 55 |
134
|
jones
|
* @param parent_id the id number of the parent node
|
| 56 |
135
|
jones
|
* @param nodeIndex - index of node among siblings in parent node
|
| 57 |
134
|
jones
|
* Every node initializes childNum to 0 when
|
| 58 |
122
|
jones
|
* created and has interface incChildNum
|
| 59 |
|
|
* when new child is created
|
| 60 |
31
|
jones
|
*/
|
| 61 |
129
|
jones
|
public BasicNode (String tagname, long parent_id, int nodeIndex) {
|
| 62 |
23
|
jones
|
this();
|
| 63 |
21
|
jones
|
this.tagname = tagname;
|
| 64 |
|
|
this.parent_id = parent_id;
|
| 65 |
72
|
bojilova
|
this.nodeIndex = nodeIndex;
|
| 66 |
21
|
jones
|
}
|
| 67 |
|
|
|
| 68 |
135
|
jones
|
/** Construct a Basic Node
|
| 69 |
31
|
jones
|
*
|
| 70 |
133
|
jones
|
* @param node_id the id number of the node
|
| 71 |
|
|
* @param tagname the name of the node
|
| 72 |
|
|
* @param parent_id the id number of the parent node
|
| 73 |
31
|
jones
|
*/
|
| 74 |
133
|
jones
|
public BasicNode (long node_id, String tagname, long parent_id,
|
| 75 |
122
|
jones
|
int nodeIndex) {
|
| 76 |
72
|
bojilova
|
this(tagname,parent_id,nodeIndex);
|
| 77 |
133
|
jones
|
this.node_id = node_id;
|
| 78 |
21
|
jones
|
}
|
| 79 |
|
|
|
| 80 |
134
|
jones
|
/** convert the node to a string representation for display */
|
| 81 |
129
|
jones
|
/* MAKE THIS AN ABSTRACT METHOD??????
|
| 82 |
21
|
jones
|
public String toString ()
|
| 83 |
|
|
{
|
| 84 |
24
|
jones
|
StringBuffer value = new StringBuffer();
|
| 85 |
|
|
value.append('<');
|
| 86 |
|
|
value.append(getTagName());
|
| 87 |
|
|
value.append(getAttributes().toString());
|
| 88 |
|
|
value.append('>');
|
| 89 |
|
|
return value.toString();
|
| 90 |
21
|
jones
|
}
|
| 91 |
126
|
jones
|
*/
|
| 92 |
21
|
jones
|
|
| 93 |
134
|
jones
|
/** Get the id of this node */
|
| 94 |
133
|
jones
|
public long getNodeID()
|
| 95 |
23
|
jones
|
{
|
| 96 |
133
|
jones
|
return node_id;
|
| 97 |
23
|
jones
|
}
|
| 98 |
21
|
jones
|
|
| 99 |
134
|
jones
|
/** Set the id of this node */
|
| 100 |
133
|
jones
|
public void setNodeID(long node_id)
|
| 101 |
23
|
jones
|
{
|
| 102 |
133
|
jones
|
this.node_id = node_id;
|
| 103 |
23
|
jones
|
}
|
| 104 |
|
|
|
| 105 |
134
|
jones
|
/** Get the parent id of this node */
|
| 106 |
23
|
jones
|
public long getParentID()
|
| 107 |
|
|
{
|
| 108 |
|
|
return parent_id;
|
| 109 |
|
|
}
|
| 110 |
|
|
|
| 111 |
134
|
jones
|
/** Set the parent id of this node */
|
| 112 |
23
|
jones
|
public void setParentID(long parent_id)
|
| 113 |
|
|
{
|
| 114 |
|
|
this.parent_id = parent_id;
|
| 115 |
|
|
}
|
| 116 |
|
|
|
| 117 |
149
|
bojilova
|
/** Get the root node id of this node */
|
| 118 |
|
|
public long getRootNodeID()
|
| 119 |
|
|
{
|
| 120 |
|
|
return rootnode_id;
|
| 121 |
|
|
}
|
| 122 |
|
|
|
| 123 |
|
|
/** Set the root node id of this node */
|
| 124 |
|
|
public void setRootNodeID(long rootnode_id)
|
| 125 |
|
|
{
|
| 126 |
|
|
this.rootnode_id = rootnode_id;
|
| 127 |
|
|
}
|
| 128 |
|
|
|
| 129 |
|
|
/** Get the doc id of this node */
|
| 130 |
162
|
bojilova
|
public String getDocID()
|
| 131 |
149
|
bojilova
|
{
|
| 132 |
|
|
return doc_id;
|
| 133 |
|
|
}
|
| 134 |
|
|
|
| 135 |
|
|
/** Set the doc id of this node */
|
| 136 |
162
|
bojilova
|
public void setDocID(String doc_id)
|
| 137 |
149
|
bojilova
|
{
|
| 138 |
|
|
this.doc_id = doc_id;
|
| 139 |
|
|
}
|
| 140 |
|
|
|
| 141 |
134
|
jones
|
/** Get the name of this node */
|
| 142 |
23
|
jones
|
public String getTagName()
|
| 143 |
|
|
{
|
| 144 |
|
|
return tagname;
|
| 145 |
|
|
}
|
| 146 |
21
|
jones
|
|
| 147 |
134
|
jones
|
/** Set the name of this node */
|
| 148 |
23
|
jones
|
public void setTagName(String tagname)
|
| 149 |
|
|
{
|
| 150 |
|
|
this.tagname = tagname;
|
| 151 |
|
|
}
|
| 152 |
|
|
|
| 153 |
21
|
jones
|
/** Get the attributes as a string */
|
| 154 |
|
|
public String getAttributes() {
|
| 155 |
|
|
StringBuffer buf = new StringBuffer();
|
| 156 |
|
|
String attName = null;
|
| 157 |
|
|
String attValue = null;
|
| 158 |
|
|
|
| 159 |
|
|
Enumeration attList = attributes.keys();
|
| 160 |
|
|
while (attList.hasMoreElements()) {
|
| 161 |
|
|
attName = (String)attList.nextElement();
|
| 162 |
|
|
attValue = (String)attributes.get(attName);
|
| 163 |
122
|
jones
|
buf.append(" ").append(attName).append("=\"");
|
| 164 |
|
|
buf.append(attValue).append("\"");
|
| 165 |
21
|
jones
|
}
|
| 166 |
|
|
return buf.toString();
|
| 167 |
|
|
}
|
| 168 |
|
|
|
| 169 |
134
|
jones
|
/** Add a new attribute to this node, or set its value */
|
| 170 |
21
|
jones
|
public void setAttribute(String attName, String attValue) {
|
| 171 |
|
|
if (attName != null) {
|
| 172 |
|
|
// Enter the attribute in the hash table
|
| 173 |
|
|
attributes.put(attName, attValue);
|
| 174 |
|
|
|
| 175 |
|
|
} else {
|
| 176 |
|
|
System.err.println("Attribute name must not be null!");
|
| 177 |
|
|
}
|
| 178 |
|
|
}
|
| 179 |
|
|
|
| 180 |
|
|
/** Get an attribute value by name */
|
| 181 |
|
|
public String getAttribute(String attName) {
|
| 182 |
|
|
return (String)attributes.get(attName);
|
| 183 |
|
|
}
|
| 184 |
|
|
|
| 185 |
134
|
jones
|
/** Get nodeIndex of the node */
|
| 186 |
72
|
bojilova
|
public int getNodeIndex() {
|
| 187 |
|
|
return this.nodeIndex;
|
| 188 |
|
|
}
|
| 189 |
|
|
|
| 190 |
126
|
jones
|
/** Set the node index of this node */
|
| 191 |
|
|
public void setNodeIndex(int nodeIndex) {
|
| 192 |
|
|
this.nodeIndex = nodeIndex;
|
| 193 |
|
|
}
|
| 194 |
122
|
jones
|
|
| 195 |
|
|
/** Get the type of this node */
|
| 196 |
126
|
jones
|
public String getNodeType() {
|
| 197 |
122
|
jones
|
return nodeType;
|
| 198 |
|
|
}
|
| 199 |
|
|
|
| 200 |
|
|
/** Set the type of this node */
|
| 201 |
126
|
jones
|
public void setNodeType(String type) {
|
| 202 |
122
|
jones
|
this.nodeType = type;
|
| 203 |
|
|
}
|
| 204 |
126
|
jones
|
|
| 205 |
127
|
jones
|
/** Add a child node to this node */
|
| 206 |
129
|
jones
|
public void addChildNode(BasicNode child) {
|
| 207 |
127
|
jones
|
this.children.add(child);
|
| 208 |
|
|
}
|
| 209 |
|
|
|
| 210 |
|
|
/** Get the an enumeration of the children of this node */
|
| 211 |
|
|
public Enumeration getChildren() {
|
| 212 |
|
|
return children.elements();
|
| 213 |
|
|
}
|
| 214 |
|
|
|
| 215 |
134
|
jones
|
/** increase childNum when new child for the node is created */
|
| 216 |
126
|
jones
|
public int incChildNum() {
|
| 217 |
|
|
return ++this.childNum;
|
| 218 |
|
|
}
|
| 219 |
|
|
|
| 220 |
21
|
jones
|
}
|
| 221 |
203
|
jones
|
|
| 222 |
|
|
/**
|
| 223 |
|
|
* '$Log$
|
| 224 |
|
|
* 'Revision 1.19.2.2 2000/06/25 23:38:16 jones
|
| 225 |
|
|
* 'Added RCSfile keyword
|
| 226 |
|
|
* '
|
| 227 |
|
|
* 'Revision 1.19.2.1 2000/06/25 23:34:17 jones
|
| 228 |
|
|
* 'Changed documentation formatting, added log entries at bottom of source files
|
| 229 |
|
|
* ''
|
| 230 |
|
|
*/
|