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.language.bean.BeanExpression;
028 import org.apache.camel.spi.RouteContext;
029 import org.apache.camel.util.ObjectHelper;
030
031 /**
032 * For expressions and predicates using the
033 * <a href="http://camel.apache.org/bean-language.html">bean language</a>
034 *
035 * @version $Revision: 775155 $
036 */
037 @XmlRootElement(name = "method")
038 @XmlAccessorType(XmlAccessType.FIELD)
039 public class MethodCallExpression extends ExpressionDefinition {
040 @XmlAttribute(required = false)
041 private String bean;
042 @XmlAttribute(required = false)
043 private String method;
044 @XmlTransient
045 // we don't need to support the beanType class in Spring
046 private Class beanType;
047
048
049 public MethodCallExpression() {
050 }
051
052 public MethodCallExpression(String beanName) {
053 super(beanName);
054 }
055
056 public MethodCallExpression(String beanName, String method) {
057 super(beanName);
058 this.method = method;
059 }
060
061 public MethodCallExpression(Class type) {
062 super(type.toString());
063 this.beanType = type;
064 }
065
066 public MethodCallExpression(Class type, String method) {
067 super(type.toString());
068 this.beanType = type;
069 this.method = method;
070 }
071
072 public String getLanguage() {
073 return "bean";
074 }
075
076 public String getMethod() {
077 return method;
078 }
079
080 public void setMethod(String method) {
081 this.method = method;
082 }
083
084 @SuppressWarnings("unchecked")
085 @Override
086 public Expression createExpression(RouteContext routeContext) {
087 if (beanType != null) {
088 return new BeanExpression(ObjectHelper.newInstance(beanType), getMethod());
089 } else {
090 return new BeanExpression(beanName(), getMethod());
091 }
092 }
093
094 @SuppressWarnings("unchecked")
095 @Override
096 public Predicate createPredicate(RouteContext routeContext) {
097 if (beanType != null) {
098 return new BeanExpression(ObjectHelper.newInstance(beanType), getMethod());
099 } else {
100 return new BeanExpression(beanName(), getMethod());
101 }
102 }
103
104 protected String beanName() {
105 if (bean != null) {
106 return bean;
107 }
108 return getExpression();
109 }
110
111 @Override
112 public String toString() {
113 return "bean{" + beanName() + (method != null ? ", method=" + method : "") + "}";
114 }
115 }