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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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
*
* http://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.apache.dubbo.config.metadata;
import org.apache.dubbo.common.utils.CollectionUtils;
import org.apache.dubbo.config.ProtocolConfig;
import org.apache.dubbo.registry.client.DefaultServiceInstance;
import org.apache.dubbo.registry.client.ServiceInstance;
import org.apache.dubbo.registry.client.ServiceInstanceCustomizer;
import org.apache.dubbo.rpc.model.ApplicationModel;
import java.util.Collection;
import java.util.stream.Stream;
/**
* The {@link ServiceInstanceCustomizer} to customize the {@link ServiceInstance#getPort() port} of service instance.
*
* @since 2.7.5
*/
public class ServiceInstancePortCustomizer implements ServiceInstanceCustomizer {
@Override
public void customize(ServiceInstance serviceInstance) {
if (serviceInstance.getPort() != null) {
return;
}
Collection protocols = ApplicationModel.getConfigManager()
.getProtocols();
if (CollectionUtils.isEmpty(protocols)) {
throw new IllegalStateException("We should have at least one protocol configured at this point.");
}
Stream protocolStream = protocols.stream();
ProtocolConfig protocolConfig = protocolStream
// use rest as service instance's default protocol.
.filter(protocol -> "rest".equals(protocol.getName()))
.findFirst()
.orElseGet(() -> protocolStream.findFirst().get());
if (serviceInstance instanceof DefaultServiceInstance) {
DefaultServiceInstance instance = (DefaultServiceInstance) serviceInstance;
if (protocolConfig.getPort() != null) {
instance.setPort(protocolConfig.getPort());
}
}
}
}