1/* 2 * reserved comment block 3 * DO NOT REMOVE OR ALTER! 4 */ 5/* 6 * Licensed to the Apache Software Foundation (ASF) under one or more 7 * contributor license agreements. See the NOTICE file distributed with 8 * this work for additional information regarding copyright ownership. 9 * The ASF licenses this file to You under the Apache License, Version 2.0 10 * (the "License"); you may not use this file except in compliance with 11 * the License. You may obtain a copy of the License at 12 * 13 * http://www.apache.org/licenses/LICENSE-2.0 14 * 15 * Unless required by applicable law or agreed to in writing, software 16 * distributed under the License is distributed on an "AS IS" BASIS, 17 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 18 * See the License for the specific language governing permissions and 19 * limitations under the License. 20 */ 21 22package com.sun.org.apache.xpath.internal.functions; 23 24import com.sun.org.apache.xpath.internal.XPathContext; 25import com.sun.org.apache.xpath.internal.objects.XBoolean; 26import com.sun.org.apache.xpath.internal.objects.XObject; 27 28/** 29 * Execute the Contains() function. 30 * @xsl.usage advanced 31 */ 32public class FuncContains extends Function2Args 33{ 34 static final long serialVersionUID = 5084753781887919723L; 35 36 /** 37 * Execute the function. The function must return 38 * a valid object. 39 * @param xctxt The current execution context. 40 * @return A valid XObject. 41 * 42 * @throws javax.xml.transform.TransformerException 43 */ 44 public XObject execute(XPathContext xctxt) throws javax.xml.transform.TransformerException 45 { 46 47 String s1 = m_arg0.execute(xctxt).str(); 48 String s2 = m_arg1.execute(xctxt).str(); 49 50 // Add this check for JDK consistency for empty strings. 51 if (s1.length() == 0 && s2.length() == 0) 52 return XBoolean.S_TRUE; 53 54 int index = s1.indexOf(s2); 55 56 return (index > -1) ? XBoolean.S_TRUE : XBoolean.S_FALSE; 57 } 58} 59