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.component.bean;
018
019 import java.lang.annotation.Annotation;
020
021 import org.apache.camel.CamelContext;
022 import org.apache.camel.Expression;
023 import org.apache.camel.builder.xml.XPathBuilder;
024 import org.apache.camel.language.LanguageAnnotation;
025 import org.apache.camel.language.NamespacePrefix;
026 import org.apache.camel.language.XPath;
027
028 /**
029 * Factory for the XPath expression annotations.
030 *
031 * @version $Revision: 660275 $
032 */
033 public class XPathAnnotationExpressionFactory extends DefaultAnnotationExpressionFactory {
034
035 @Override
036 public Expression createExpression(CamelContext camelContext, Annotation annotation, LanguageAnnotation languageAnnotation, Class expressionReturnType) {
037 String xpath = getExpressionFromAnnotation(annotation);
038 XPathBuilder builder = XPathBuilder.xpath(xpath);
039 if (annotation instanceof XPath) {
040 XPath xpathAnnotation = (XPath) annotation;
041 NamespacePrefix[] namespaces = xpathAnnotation.namespaces();
042 if (namespaces != null) {
043 for (NamespacePrefix namespacePrefix : namespaces) {
044 builder = builder.namespace(namespacePrefix.prefix(), namespacePrefix.uri());
045 }
046 }
047 }
048 return builder;
049 }
050 }