org.springframework.integration.channel.interceptor.MessageSelectingInterceptor Maven / Gradle / Ivy
/*
* Copyright 2002-2019 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.integration.channel.interceptor;
import java.util.Arrays;
import java.util.List;
import org.springframework.integration.core.MessageSelector;
import org.springframework.messaging.Message;
import org.springframework.messaging.MessageChannel;
import org.springframework.messaging.MessageDeliveryException;
import org.springframework.messaging.support.ChannelInterceptor;
/**
* A {@link org.springframework.messaging.support.ChannelInterceptor ChannelInterceptor} that
* delegates to a list of {@link MessageSelector MessageSelectors} to decide
* whether a {@link Message} should be accepted on the {@link MessageChannel}.
*
* @author Mark Fisher
* @author Gary Russell
*/
public class MessageSelectingInterceptor implements ChannelInterceptor {
private final List selectors;
public MessageSelectingInterceptor(MessageSelector... selectors) {
this.selectors = Arrays.asList(selectors);
}
@Override
public Message preSend(Message message, MessageChannel channel) {
for (MessageSelector selector : this.selectors) {
if (!selector.accept(message)) {
throw new MessageDeliveryException(message,
"selector '" + selector + "' did not accept message");
}
}
return message;
}
}