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Added segments action to _cat API 

Currently displays the same information as the _segments API
This commit is contained in:
colings86 2014-02-13 21:31:11 +00:00 committed by Andrew Raines
parent 689fd15d78
commit a7b3fdf3bf
2 changed files with 149 additions and 0 deletions
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1
src/main/java/org/elasticsearch/rest/action/RestActionModule.java
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@ -219,6 +219,7 @@ public class RestActionModule extends AbstractModule {
catActionMultibinder.addBinding().to(RestMasterAction.class).asEagerSingleton();
catActionMultibinder.addBinding().to(RestNodesAction.class).asEagerSingleton();
catActionMultibinder.addBinding().to(RestIndicesAction.class).asEagerSingleton();
catActionMultibinder.addBinding().to(RestSegmentsAction.class).asEagerSingleton();
// Fully qualified to prevent interference with rest.action.count.RestCountAction
catActionMultibinder.addBinding().to(org.elasticsearch.rest.action.cat.RestCountAction.class).asEagerSingleton();
catActionMultibinder.addBinding().to(RestRecoveryAction.class).asEagerSingleton();

148
src/main/java/org/elasticsearch/rest/action/cat/RestSegmentsAction.java Normal file
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@ -0,0 +1,148 @@
/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.elasticsearch.rest.action.cat;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.admin.indices.segments.*;
import org.elasticsearch.client.Client;
import org.elasticsearch.common.Strings;
import org.elasticsearch.common.Table;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.index.engine.Segment;
import org.elasticsearch.rest.RestChannel;
import org.elasticsearch.rest.RestController;
import org.elasticsearch.rest.RestRequest;
import org.elasticsearch.rest.XContentThrowableRestResponse;
import org.elasticsearch.rest.action.support.RestTable;
import java.io.IOException;
import java.util.List;
import java.util.Map;
import static org.elasticsearch.rest.RestRequest.Method.GET;
public class RestSegmentsAction extends AbstractCatAction {
@Inject
public RestSegmentsAction(Settings settings, Client client, RestController controller) {
super(settings, client);
controller.registerHandler(GET, "/_cat/segments", this);
controller.registerHandler(GET, "/_cat/segments/{index}", this);
}
@Override
void doRequest(final RestRequest request, final RestChannel channel) {
final String[] indices = Strings.splitStringByCommaToArray(request.param("index"));
final IndicesSegmentsRequest indicesSegmentsRequest = new IndicesSegmentsRequest();
indicesSegmentsRequest.indices(indices);
client.admin().indices().segments(indicesSegmentsRequest, new ActionListener<IndicesSegmentResponse>() {
@Override
public void onResponse(final IndicesSegmentResponse indicesSegmentResponse) {
final Map<String, IndexSegments> indicesSegments = indicesSegmentResponse.getIndices();
try {
Table tab = buildTable(request, indicesSegments);
channel.sendResponse(RestTable.buildResponse(tab, request, channel));
} catch (Throwable e) {
onFailure(e);
}
}
@Override
public void onFailure(Throwable e) {
try {
channel.sendResponse(new XContentThrowableRestResponse(request, e));
} catch (IOException e1) {
logger.error("Failed to send failure response", e1);
}
}
});
}
@Override
void documentation(StringBuilder sb) {
sb.append("/_cat/segments\n");
sb.append("/_cat/segments/{index}\n");
}
@Override
Table getTableWithHeader(RestRequest request) {
Table table = new Table();
table.startHeaders();
table.addCell("index", "default:true;alias:i,idx;desc:index name");
table.addCell("shard", "default:true;alias:s,sh;desc:shard name");
table.addCell("segment", "default:true;alias:seg;desc:segment name");
table.addCell("num.committed", "default:true;alias:nc,numCommitted;text-align:right;desc:number of committed segments in shard");
table.addCell("num.searchable", "default:true;alias:alias:numSearchable,ns;text-align:right;desc:number of searchable segmewnts in shard");
table.addCell("generation", "default:true;alias:g,gen;text-align:right;desc:segment generation");
table.addCell("docs.count", "default:true;alias:dc,docsCount;text-align:right;desc:number of docs in segment");
table.addCell("docs.deleted", "default:true;alias:dd,docsDeleted;text-align:right;desc:number of deleted docs in segment");
table.addCell("size", "default:true;alias:si;text-align:right;desc:segment size in bytes");
table.addCell("size.memory", "default:true;alias:sm,sizeMemory;text-align:right;desc:segment memory in bytes");
table.addCell("committed", "default:true;alias:ic,isCommitted;desc:is segment committed");
table.addCell("searchable", "default:true;alias:is,isSearchable;desc:is segment searched");
table.addCell("version", "default:true;alias:v,ver;desc:version");
table.addCell("compound", "default:true;alias:ico,isCompound;desc:is segment compound");
table.endHeaders();
return table;
}
private Table buildTable(final RestRequest request, Map<String, IndexSegments> indicesSegments) {
Table table = getTableWithHeader(request);
for (IndexSegments indexSegments : indicesSegments.values()) {
Map<Integer, IndexShardSegments> shards = indexSegments.getShards();
for (IndexShardSegments indexShardSegments : shards.values()) {
ShardSegments[] shardSegments = indexShardSegments.getShards();
for (ShardSegments shardSegment : shardSegments) {
List<Segment> segments = shardSegment.getSegments();
for (Segment segment : segments) {
table.startRow();
table.addCell(shardSegment.getIndex());
table.addCell(shardSegment.getShardId());
table.addCell(segment.getName());
table.addCell(shardSegment.getNumberOfCommitted());
table.addCell(shardSegment.getNumberOfSearch());
table.addCell(segment.getGeneration());
table.addCell(segment.getNumDocs());
table.addCell(segment.getDeletedDocs());
table.addCell(segment.getSize());
table.addCell(segment.getMemoryInBytes());
table.addCell(segment.isCommitted());
table.addCell(segment.isSearch());
table.addCell(segment.getVersion());
table.addCell(segment.isCompound());
table.endRow();
}
}
}
}
return table;
}
}