1 /* NodeTypeTest.java -- 2 Copyright (C) 2004,2006 Free Software Foundation, Inc. 3 4 This file is part of GNU Classpath. 5 6 GNU Classpath is free software; you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation; either version 2, or (at your option) 9 any later version. 10 11 GNU Classpath is distributed in the hope that it will be useful, but 12 WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 General Public License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with GNU Classpath; see the file COPYING. If not, write to the 18 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 19 02110-1301 USA. 20 21 Linking this library statically or dynamically with other modules is 22 making a combined work based on this library. Thus, the terms and 23 conditions of the GNU General Public License cover the whole 24 combination. 25 26 As a special exception, the copyright holders of this library give you 27 permission to link this library with independent modules to produce an 28 executable, regardless of the license terms of these independent 29 modules, and to copy and distribute the resulting executable under 30 terms of your choice, provided that you also meet, for each linked 31 independent module, the terms and conditions of the license of that 32 module. An independent module is a module which is not derived from 33 or based on this library. If you modify this library, you may extend 34 this exception to your version of the library, but you are not 35 obligated to do so. If you do not wish to do so, delete this 36 exception statement from your version. */ 37 38 package gnu.xml.xpath; 39 40 import javax.xml.namespace.QName; 41 import org.w3c.dom.Node; 42 import org.w3c.dom.ProcessingInstruction; 43 44 /** 45 * Tests whether a node is of a given type. 46 * 47 * @author <a href='mailto:dog@gnu.org'>Chris Burdess</a> 48 */ 49 public final class NodeTypeTest 50 extends Test 51 { 52 53 final short type; 54 final String data; 55 NodeTypeTest(short type)56 public NodeTypeTest(short type) 57 { 58 this(type, null); 59 } 60 NodeTypeTest(short type, String data)61 public NodeTypeTest(short type, String data) 62 { 63 this.type = type; 64 this.data = data; 65 } 66 getNodeType()67 public short getNodeType() 68 { 69 return type; 70 } 71 getData()72 public String getData() 73 { 74 return data; 75 } 76 matches(Node node, int pos, int len)77 public boolean matches(Node node, int pos, int len) 78 { 79 short nodeType = node.getNodeType(); 80 switch (nodeType) 81 { 82 case Node.ELEMENT_NODE: 83 case Node.ATTRIBUTE_NODE: 84 case Node.TEXT_NODE: 85 case Node.CDATA_SECTION_NODE: 86 case Node.COMMENT_NODE: 87 case Node.DOCUMENT_NODE: 88 if (type > 0) 89 { 90 if (nodeType != type) 91 return false; 92 } 93 return true; 94 case Node.PROCESSING_INSTRUCTION_NODE: 95 if (type > 0) 96 { 97 if (nodeType != type) 98 return false; 99 if (data != null && 100 !data.equals(((ProcessingInstruction) node).getTarget())) 101 return false; 102 } 103 return true; 104 default: 105 // Not part of XPath data model 106 return false; 107 } 108 } 109 clone(Object context)110 public Test clone(Object context) 111 { 112 return new NodeTypeTest(type, data); 113 } 114 references(QName var)115 public boolean references(QName var) 116 { 117 return false; 118 } 119 toString()120 public String toString() 121 { 122 switch (type) 123 { 124 case 0: 125 return "node()"; 126 case Node.TEXT_NODE: 127 return "text()"; 128 case Node.COMMENT_NODE: 129 return "comment()"; 130 case Node.PROCESSING_INSTRUCTION_NODE: 131 if (data != null) 132 { 133 return "processing-instruction('" + data + "')"; 134 } 135 return "processing-instruction()"; 136 default: 137 throw new IllegalStateException(); 138 } 139 } 140 141 } 142