001 /** 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 package org.apache.camel.language.xpath; 018 019 import javax.xml.namespace.QName; 020 021 import org.apache.camel.Exchange; 022 import org.apache.camel.Expression; 023 import org.apache.camel.Predicate; 024 import org.apache.camel.builder.xml.XPathBuilder; 025 import org.apache.camel.spi.Language; 026 027 /** 028 * XPath language. 029 * 030 * @version $Revision: 1315 $ 031 */ 032 public class XPathLanguage implements Language { 033 private QName resultType; 034 035 public Predicate<Exchange> createPredicate(String expression) { 036 XPathBuilder builder = XPathBuilder.xpath(expression); 037 configureBuilder(builder); 038 return builder; 039 } 040 041 public Expression<Exchange> createExpression(String expression) { 042 XPathBuilder builder = XPathBuilder.xpath(expression); 043 configureBuilder(builder); 044 return builder; 045 } 046 047 public QName getResultType() { 048 return resultType; 049 } 050 051 public void setResultType(QName resultType) { 052 this.resultType = resultType; 053 } 054 055 protected void configureBuilder(XPathBuilder builder) { 056 if (resultType != null) { 057 builder.setResultQName(resultType); 058 } 059 } 060 }