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; 018 019 import javax.xml.bind.annotation.XmlAccessType; 020 import javax.xml.bind.annotation.XmlAccessorType; 021 import javax.xml.bind.annotation.XmlRootElement; 022 023 import org.apache.camel.Predicate; 024 import org.apache.camel.Processor; 025 import org.apache.camel.model.language.ExpressionDefinition; 026 import org.apache.camel.processor.FilterProcessor; 027 import org.apache.camel.spi.RouteContext; 028 029 /** 030 * Represents an XML <filter/> element 031 * 032 * @version 033 */ 034 @XmlRootElement(name = "filter") 035 @XmlAccessorType(XmlAccessType.FIELD) 036 public class FilterDefinition extends ExpressionNode { 037 038 public FilterDefinition() { 039 } 040 041 public FilterDefinition(ExpressionDefinition expression) { 042 super(expression); 043 } 044 045 public FilterDefinition(Predicate predicate) { 046 super(predicate); 047 } 048 049 @Override 050 public String toString() { 051 return "Filter[" + getExpression() + " -> " + getOutputs() + "]"; 052 } 053 054 @Override 055 public String getLabel() { 056 return "filter[" + getExpression() + "]"; 057 } 058 059 @Override 060 public String getShortName() { 061 return "filter"; 062 } 063 064 @Override 065 public FilterProcessor createProcessor(RouteContext routeContext) throws Exception { 066 return createFilterProcessor(routeContext); 067 } 068 069 @Override 070 protected FilterProcessor createFilterProcessor(RouteContext routeContext) throws Exception { 071 // filter EIP should have child outputs 072 Processor childProcessor = this.createChildProcessor(routeContext, true); 073 return new FilterProcessor(createPredicate(routeContext), childProcessor); 074 } 075 076 }