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.model.language;
018
019 import javax.xml.bind.annotation.XmlAccessType;
020 import javax.xml.bind.annotation.XmlAccessorType;
021 import javax.xml.bind.annotation.XmlAttribute;
022 import javax.xml.bind.annotation.XmlRootElement;
023 import javax.xml.bind.annotation.XmlTransient;
024
025 import org.apache.camel.Expression;
026 import org.apache.camel.Predicate;
027 import org.apache.camel.RuntimeCamelException;
028 import org.apache.camel.spi.RouteContext;
029 import org.apache.commons.logging.Log;
030 import org.apache.commons.logging.LogFactory;
031
032 /**
033 * For XQuery expressions and predicates
034 *
035 * @version $Revision: 747062 $
036 */
037 @XmlRootElement(name = "xquery")
038 @XmlAccessorType(XmlAccessType.FIELD)
039 public class XQueryExpression extends NamespaceAwareExpression {
040 private static final transient Log LOG = LogFactory.getLog(XQueryExpression.class);
041
042 @XmlAttribute(required = false)
043 private String type;
044 @XmlTransient
045 private Class resultType;
046
047 public XQueryExpression() {
048 }
049
050 public XQueryExpression(String expression) {
051 super(expression);
052 }
053
054 public String getLanguage() {
055 return "xquery";
056 }
057
058 public String getType() {
059 return type;
060 }
061
062 public void setType(String type) {
063 this.type = type;
064 }
065
066 public Class getResultType() {
067 return resultType;
068 }
069
070 public void setResultType(Class resultType) {
071 this.resultType = resultType;
072 }
073
074 @Override
075 protected void configureExpression(RouteContext routeContext, Expression expression) {
076 super.configureExpression(routeContext, expression);
077 updateResultType();
078 if (resultType != null) {
079 setProperty(expression, "resultType", resultType);
080 }
081 }
082
083 @Override
084 protected void configurePredicate(RouteContext routeContext, Predicate predicate) {
085 super.configurePredicate(routeContext, predicate);
086 updateResultType();
087 if (resultType != null) {
088 setProperty(predicate, "resultType", resultType);
089 }
090 }
091
092 private void updateResultType() {
093 if (resultType == null && type != null) {
094 try {
095 resultType = Class.forName(type);
096 } catch (ClassNotFoundException e) {
097 throw new RuntimeCamelException(e);
098 }
099 }
100 }
101 }