i3wangyi commented on a change in pull request #516: Implement the propertyStore read endpoint URL: https://github.com/apache/helix/pull/516#discussion_r349400055
########## File path: helix-rest/src/main/java/org/apache/helix/rest/server/resources/helix/PropertyStoreAccessor.java ########## @@ -0,0 +1,129 @@ +package org.apache.helix.rest.server.resources.helix; + +/* + * 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.io.IOException; +import javax.ws.rs.GET; +import javax.ws.rs.Path; +import javax.ws.rs.PathParam; +import javax.ws.rs.WebApplicationException; +import javax.ws.rs.core.Response; + +import org.I0Itec.zkclient.exception.ZkMarshallingError; +import org.I0Itec.zkclient.serialize.ZkSerializer; +import org.apache.helix.AccessOption; +import org.apache.helix.PropertyPathBuilder; +import org.apache.helix.ZNRecord; +import org.apache.helix.manager.zk.ZNRecordSerializer; +import org.apache.helix.manager.zk.ZkBaseDataAccessor; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + + +@Path("/clusters/{clusterId}/propertyStore") +public class PropertyStoreAccessor extends AbstractHelixResource { + private static Logger LOG = LoggerFactory.getLogger(PropertyStoreAccessor.class); + + public static class PropertyStoreSerializer implements ZkSerializer { + private static final ZNRecordSerializer ZN_RECORD_SERIALIZER = new ZNRecordSerializer(); + private final String _path; + + public PropertyStoreSerializer(String path) { + _path = path; + } + + // used for writing the serialized content to property store path + @Override + public byte[] serialize(Object o) + throws ZkMarshallingError { + return (byte[]) o; + } + + // used for reading the raw content of property store path to ZnRecord format + @Override + public Object deserialize(byte[] bytes) + throws ZkMarshallingError { + if (bytes == null || bytes.length == 0) { + throw new ZkMarshallingError("Data unavailable from path: " + _path); + } Review comment: It's no longer a concern given we'll verify path existence first ---------------------------------------------------------------- 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: us...@infra.apache.org With regards, Apache Git Services --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@helix.apache.org For additional commands, e-mail: reviews-h...@helix.apache.org
