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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.metadata.store;
import org.apache.dubbo.common.URL;
import org.apache.dubbo.common.logger.Logger;
import org.apache.dubbo.common.logger.LoggerFactory;
import org.apache.dubbo.common.utils.StringUtils;
import org.apache.dubbo.metadata.WritableMetadataService;
import org.apache.dubbo.metadata.definition.model.ServiceDefinition;
import com.alibaba.fastjson.JSON;
import static org.apache.dubbo.common.constants.CommonConstants.INTERFACE_KEY;
import static org.apache.dubbo.common.constants.CommonConstants.PID_KEY;
import static org.apache.dubbo.common.constants.CommonConstants.PROVIDER_SIDE;
import static org.apache.dubbo.common.constants.CommonConstants.SIDE_KEY;
import static org.apache.dubbo.common.constants.CommonConstants.TIMESTAMP_KEY;
import static org.apache.dubbo.common.utils.ClassUtils.forName;
import static org.apache.dubbo.metadata.definition.ServiceDefinitionBuilder.buildFullDefinition;
import static org.apache.dubbo.remoting.Constants.BIND_IP_KEY;
import static org.apache.dubbo.remoting.Constants.BIND_PORT_KEY;
import static org.apache.dubbo.rpc.Constants.GENERIC_KEY;
import static org.apache.dubbo.rpc.support.ProtocolUtils.isGeneric;
/**
* The abstract implementation of {@link WritableMetadataService}
*
* @see WritableMetadataService
* @since 2.7.8
*/
public abstract class AbstractAbstractWritableMetadataService implements WritableMetadataService {
protected final Logger logger = LoggerFactory.getLogger(getClass());
@Override
public void publishServiceDefinition(URL url) {
if (SERVICE_INTERFACE_NAME.equals(url.getServiceInterface())) { // Ignore the interface "MetadataService"
return;
}
// Remove the useless parameters
url = url.removeParameters(PID_KEY, TIMESTAMP_KEY, BIND_IP_KEY, BIND_PORT_KEY, TIMESTAMP_KEY);
String side = url.getParameter(SIDE_KEY);
if (PROVIDER_SIDE.equalsIgnoreCase(side)) {
publishProviderServiceDefinition(url);
} else {
publishConsumerParameters(url);
}
}
protected void publishProviderServiceDefinition(URL url) {
String serviceDefinition = getServiceDefinition(url);
if (!StringUtils.isBlank(serviceDefinition)) {
publishServiceDefinition(url.getServiceKey(), serviceDefinition);
}
}
protected String getServiceDefinition(URL exportedURL) {
String interfaceName = exportedURL.getParameter(INTERFACE_KEY);
String json = null;
try {
if (StringUtils.isNotEmpty(interfaceName) && !isGeneric(exportedURL.getParameter(GENERIC_KEY))) {
Class interfaceClass = forName(interfaceName);
ServiceDefinition serviceDefinition = buildFullDefinition(interfaceClass, exportedURL.getParameters());
json = JSON.toJSONString(serviceDefinition);
}
} catch (ClassNotFoundException e) {
//ignore error
if (logger.isErrorEnabled()) {
logger.error("The interface class[name : " + interfaceName + "] can't be found , providerUrl: "
+ exportedURL.toFullString());
}
}
return json;
}
protected void publishConsumerParameters(URL url) {
}
protected void publishServiceDefinition(String key, String json) {
}
}