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;
018
019import javax.xml.bind.annotation.XmlRootElement;
020
021import org.apache.camel.Exchange;
022import org.apache.camel.Predicate;
023import org.apache.camel.model.language.ExpressionDefinition;
024import org.apache.camel.spi.AsPredicate;
025import org.apache.camel.spi.Metadata;
026import org.apache.camel.spi.RouteContext;
027
028/**
029 * Predicate to determine if the message should be sent or not to the endpoint, when using interceptSentToEndpoint.
030 */
031@Metadata(label = "configuration") @AsPredicate
032@XmlRootElement(name = "whenSkipSendToEndpoint")
033public class WhenSkipSendToEndpointDefinition extends WhenDefinition {
034
035    @Override
036    protected Predicate createPredicate(RouteContext routeContext) {
037        // we need to keep track whether the when matches or not, so delegate
038        // the predicate and add the matches result as a property on the exchange
039        final Predicate delegate = super.createPredicate(routeContext);
040        return new Predicate() {
041            @Override
042            public boolean matches(Exchange exchange) {
043                boolean matches = delegate.matches(exchange);
044                exchange.setProperty(Exchange.INTERCEPT_SEND_TO_ENDPOINT_WHEN_MATCHED, matches);
045                return matches;
046            }
047
048            @Override
049            public String toString() {
050                return delegate.toString();
051            }
052        };
053    }
054
055    /**
056     * Expression used as the predicate to evaluate whether the message should be sent or not to the endpoint
057     */
058    @Override
059    public void setExpression(ExpressionDefinition expression) {
060        // override to include javadoc what the expression is used for
061        super.setExpression(expression);
062    }
063
064}