org.springframework.integration.aop.SimplePublisherMetadataSource 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.aop;
import java.lang.reflect.Method;
import java.util.Map;
import java.util.stream.Collectors;
import org.springframework.expression.Expression;
/**
* Simple implementation of {@link PublisherMetadataSource} that allows for
* configuration of a single channel name, payload expression, and
* array of header key=value expressions.
*
* @author Mark Fisher
* @author Artem Bilan
*
* @since 2.0
*/
public class SimplePublisherMetadataSource implements PublisherMetadataSource {
private volatile String channelName;
private volatile Expression payloadExpression;
private volatile Map headerExpressions;
public void setChannelName(String channelName) {
this.channelName = channelName;
}
@Override
public String getChannelName(Method method) {
return this.channelName;
}
public void setPayloadExpression(String payloadExpression) {
this.payloadExpression = EXPRESSION_PARSER.parseExpression(payloadExpression);
}
@Override
public Expression getExpressionForPayload(Method method) {
return this.payloadExpression;
}
public void setHeaderExpressions(Map headerExpressions) {
this.headerExpressions =
headerExpressions.entrySet()
.stream()
.collect(Collectors.toMap(Map.Entry::getKey,
e -> EXPRESSION_PARSER.parseExpression(e.getValue())));
}
@Override
public Map getExpressionsForHeaders(Method method) {
return this.headerExpressions;
}
}