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 import javax.xml.xpath.XPathFactory; 021 022 import org.apache.camel.Expression; 023 import org.apache.camel.IsSingleton; 024 import org.apache.camel.Predicate; 025 import org.apache.camel.builder.xml.XPathBuilder; 026 import org.apache.camel.spi.Language; 027 028 /** 029 * XPath language. 030 */ 031 public class XPathLanguage implements Language, IsSingleton { 032 private QName resultType; 033 private XPathFactory xpathFactory; 034 private Boolean useSaxon; 035 private String objectModelUri; 036 037 public Predicate createPredicate(String expression) { 038 XPathBuilder builder = XPathBuilder.xpath(expression); 039 configureBuilder(builder); 040 return builder; 041 } 042 043 public Expression createExpression(String expression) { 044 XPathBuilder builder = XPathBuilder.xpath(expression); 045 configureBuilder(builder); 046 return builder; 047 } 048 049 public QName getResultType() { 050 return resultType; 051 } 052 053 public void setResultType(QName resultType) { 054 this.resultType = resultType; 055 } 056 057 public XPathFactory getXpathFactory() { 058 return xpathFactory; 059 } 060 061 public void setXpathFactory(XPathFactory xpathFactory) { 062 this.xpathFactory = xpathFactory; 063 } 064 065 public void setUseSaxon(Boolean useSaxon) { 066 this.useSaxon = useSaxon; 067 } 068 069 public Boolean getUseSaxon() { 070 return useSaxon; 071 } 072 073 public Boolean isUseSaxon() { 074 return useSaxon != null && useSaxon; 075 } 076 077 public String getObjectModelUri() { 078 return objectModelUri; 079 } 080 081 public void setObjectModelUri(String objectModelUri) { 082 this.objectModelUri = objectModelUri; 083 } 084 085 protected void configureBuilder(XPathBuilder builder) { 086 if (resultType != null) { 087 builder.setResultQName(resultType); 088 } 089 090 if (isUseSaxon()) { 091 builder.enableSaxon(); 092 } else { 093 if (xpathFactory != null) { 094 builder.setXPathFactory(xpathFactory); 095 } 096 if (objectModelUri != null) { 097 builder.setObjectModelUri(objectModelUri); 098 } 099 } 100 } 101 102 public boolean isSingleton() { 103 return false; 104 } 105 }