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.builder.xml;
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.spi.Language;
025    
026    /**
027     * @version $Revision: 36321 $
028     */
029    public class XPathLanguage implements Language {
030        private QName resultType;
031    
032        public Predicate<Exchange> createPredicate(String expression) {
033            XPathBuilder builder = XPathBuilder.xpath(expression);
034            configureBuilder(builder);
035            return builder;
036        }
037    
038        public Expression<Exchange> createExpression(String expression) {
039            XPathBuilder builder = XPathBuilder.xpath(expression);
040            configureBuilder(builder);
041            return builder;
042        }
043    
044        public QName getResultType() {
045            return resultType;
046        }
047    
048        public void setResultType(QName resultType) {
049            this.resultType = resultType;
050        }
051    
052        protected void configureBuilder(XPathBuilder builder) {
053            if (resultType != null) {
054                builder.setResultQName(resultType);
055            }
056        }
057    }