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1: /* NodeTypeTest.java -- 2: Copyright (C) 2004 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: 43: /** 44: * Tests whether a node is of a given type. 45: * 46: * @author <a href='mailto:dog@gnu.org'>Chris Burdess</a> 47: */ 48: public final class NodeTypeTest 49: extends Test 50: { 51: 52: final short type; 53: final String data; 54: 55: public NodeTypeTest(short type) 56: { 57: this(type, null); 58: } 59: 60: public NodeTypeTest(short type, String data) 61: { 62: this.type = type; 63: this.data = data; 64: } 65: 66: public short getNodeType() 67: { 68: return type; 69: } 70: 71: public String getData() 72: { 73: return data; 74: } 75: 76: public boolean matches(Node node, int pos, int len) 77: { 78: short nodeType = node.getNodeType(); 79: switch (nodeType) 80: { 81: case Node.ELEMENT_NODE: 82: case Node.ATTRIBUTE_NODE: 83: case Node.TEXT_NODE: 84: case Node.CDATA_SECTION_NODE: 85: case Node.COMMENT_NODE: 86: case Node.PROCESSING_INSTRUCTION_NODE: 87: if (type > 0) 88: { 89: if (nodeType != type) 90: { 91: return false; 92: } 93: if (data != null && !data.equals(node.getNodeValue())) 94: { 95: return false; 96: } 97: } 98: return true; 99: default: 100: // Not part of XPath data model 101: return false; 102: } 103: } 104: 105: public Test clone(Object context) 106: { 107: return new NodeTypeTest(type, data); 108: } 109: 110: public boolean references(QName var) 111: { 112: return false; 113: } 114: 115: public String toString() 116: { 117: switch (type) 118: { 119: case 0: 120: return "node()"; 121: case Node.TEXT_NODE: 122: return "text()"; 123: case Node.COMMENT_NODE: 124: return "comment()"; 125: case Node.PROCESSING_INSTRUCTION_NODE: 126: if (data != null) 127: { 128: return "processing-instruction('" + data + "')"; 129: } 130: return "processing-instruction()"; 131: default: 132: throw new IllegalStateException(); 133: } 134: } 135: 136: }