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 }