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 */
017package org.apache.camel.model.language;
018
019import javax.xml.bind.annotation.XmlAccessType;
020import javax.xml.bind.annotation.XmlAccessorType;
021import javax.xml.bind.annotation.XmlAttribute;
022import javax.xml.bind.annotation.XmlRootElement;
023import javax.xml.bind.annotation.XmlTransient;
024
025import org.apache.camel.CamelContext;
026import org.apache.camel.Expression;
027import org.apache.camel.Predicate;
028import org.apache.camel.util.ObjectHelper;
029
030/**
031 * For XQuery expressions and predicates
032 *
033 * @version 
034 */
035@XmlRootElement(name = "xquery")
036@XmlAccessorType(XmlAccessType.FIELD)
037public class XQueryExpression extends NamespaceAwareExpression {
038    @XmlAttribute
039    private String type;
040    @XmlTransient
041    private Class<?> resultType;
042    @XmlAttribute
043    private String headerName;
044
045    public XQueryExpression() {
046    }
047
048    public XQueryExpression(String expression) {
049        super(expression);
050    }
051
052    public String getLanguage() {
053        return "xquery";
054    }
055
056    public String getType() {
057        return type;
058    }
059
060    public void setType(String type) {
061        this.type = type;
062    }
063
064    public Class<?> getResultType() {
065        return resultType;
066    }
067
068    public void setResultType(Class<?> resultType) {
069        this.resultType = resultType;
070    }
071
072    public String getHeaderName() {
073        return headerName;
074    }
075
076    public void setHeaderName(String headerName) {
077        this.headerName = headerName;
078    }
079    
080    @Override
081    public Expression createExpression(CamelContext camelContext) {
082        if (resultType == null && type != null) {
083            try {
084                resultType = camelContext.getClassResolver().resolveMandatoryClass(type);
085            } catch (ClassNotFoundException e) {
086                throw ObjectHelper.wrapRuntimeCamelException(e);
087            }
088        }
089
090        return super.createExpression(camelContext);
091    }
092
093    @Override
094    protected void configureExpression(CamelContext camelContext, Expression expression) {
095        super.configureExpression(camelContext, expression);
096        if (resultType != null) {
097            setProperty(expression, "resultType", resultType);
098        }
099        if (ObjectHelper.isNotEmpty(getHeaderName())) {
100            setProperty(expression, "headerName", getHeaderName());
101        }
102    }
103
104    @Override
105    protected void configurePredicate(CamelContext camelContext, Predicate predicate) {
106        super.configurePredicate(camelContext, predicate);
107        if (resultType != null) {
108            setProperty(predicate, "resultType", resultType);
109        }
110        if (ObjectHelper.isNotEmpty(getHeaderName())) {
111            setProperty(predicate, "headerName", getHeaderName());
112        }
113    }
114
115}