pkuwm commented on a change in pull request #1357: URL: https://github.com/apache/helix/pull/1357#discussion_r492412076
########## File path: helix-rest/src/main/java/org/apache/helix/rest/server/HelixRestObjectNameFactory.java ########## @@ -0,0 +1,87 @@ +package org.apache.helix.rest.server; + +/* + * 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. + */ + +import java.util.Hashtable; +import javax.management.MalformedObjectNameException; +import javax.management.ObjectName; + +import com.codahale.metrics.jmx.ObjectNameFactory; +import org.apache.helix.HelixException; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +/** + * Creates an {@link ObjectName} that has "name", "type" and "namespace" properties + * for metrics registry in Helix rest service. + * + * <p>It is recommended to only be used within Helix REST. + */ +class HelixRestObjectNameFactory implements ObjectNameFactory { + private static final Logger LOG = LoggerFactory.getLogger(HelixRestObjectNameFactory.class); + + private static final String KEY_NAME = "name"; + private static final String KEY_TYPE = "type"; + private static final String KEY_NAMESPACE = "namespace"; + + private final String _namespace; + + HelixRestObjectNameFactory(String nameSpace) { + _namespace = nameSpace; + } + + public ObjectName createName(String type, String domain, String name) { + Hashtable<String, String> properties = new Hashtable<>(); Review comment: @dasahcc Good question. If exception is thrown, servlet/rest server won't be able to start. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
