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From joshelser <...@git.apache.org>
Subject [GitHub] accumulo pull request #242: ACCUMULO-2181/3005 REST API and new Monitor UI
Date Thu, 06 Apr 2017 04:35:54 GMT
Github user joshelser commented on a diff in the pull request:

    https://github.com/apache/accumulo/pull/242#discussion_r110075046
  
    --- Diff: server/monitor/src/main/java/org/apache/accumulo/monitor/rest/XMLResource.java
---
    @@ -0,0 +1,67 @@
    +/*
    + * 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.accumulo.monitor.rest;
    +
    +import javax.ws.rs.GET;
    +import javax.ws.rs.Path;
    +import javax.ws.rs.Produces;
    +import javax.ws.rs.WebApplicationException;
    +import javax.ws.rs.core.MediaType;
    +import javax.ws.rs.core.Response.Status;
    +
    +import org.apache.accumulo.core.master.thrift.MasterMonitorInfo;
    +import org.apache.accumulo.core.master.thrift.TabletServerStatus;
    +import org.apache.accumulo.monitor.Monitor;
    +import org.apache.accumulo.monitor.rest.master.MasterResource;
    +import org.apache.accumulo.monitor.rest.tables.TablesResource;
    +import org.apache.accumulo.monitor.rest.tservers.TabletServer;
    +
    +/**
    + *
    + * Responsible for generating an XML summary of the Monitor
    + *
    + * @since 2.0.0
    + *
    + */
    +@Path("/")
    +@Produces({MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML})
    +public class XMLResource {
    +
    +  /**
    +   * Generates an XML summary of the Monitor
    +   *
    +   * @return XML summary
    +   */
    +  @GET
    +  public XMLInformation getXMLInformation() {
    +
    +    MasterMonitorInfo mmi = Monitor.getMmi();
    +    if (null == mmi) {
    +      throw new WebApplicationException(Status.INTERNAL_SERVER_ERROR);
    +    }
    +
    +    // Add Monitor information
    +    XMLInformation xml = new XMLInformation(mmi.tServerInfo.size(), new MasterResource().getTables(),
new TablesResource().getTables());
    --- End diff --
    
    Make `getTables()` on `MasterResources` and `TablesResources` static methods. They look
stateless, so the static method could just invoke the existing non-static method on a static
final singleton instance of the respective classes.


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