forked from elastic/elasticsearch
-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Cat API: Add endpoint to show aliases
This endpoint allows to check aliases, their indices, if a filter is configured along with routing values for searching and indexing. Closes elastic#4414
- Loading branch information
Showing
2 changed files
with
133 additions
and
0 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
132 changes: 132 additions & 0 deletions
132
src/main/java/org/elasticsearch/rest/action/cat/RestAliasAction.java
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,132 @@ | ||
/* | ||
* Licensed to ElasticSearch and Shay Banon 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 com.carrotsearch.hppc.cursors.ObjectObjectCursor; | ||
import org.elasticsearch.action.ActionListener; | ||
import org.elasticsearch.action.admin.cluster.state.ClusterStateRequest; | ||
import org.elasticsearch.action.admin.cluster.state.ClusterStateResponse; | ||
import org.elasticsearch.client.Client; | ||
import org.elasticsearch.cluster.metadata.AliasMetaData; | ||
import org.elasticsearch.common.Strings; | ||
import org.elasticsearch.common.Table; | ||
import org.elasticsearch.common.collect.ImmutableOpenMap; | ||
import org.elasticsearch.common.inject.Inject; | ||
import org.elasticsearch.common.settings.Settings; | ||
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.Iterator; | ||
|
||
import static org.elasticsearch.rest.RestRequest.Method.GET; | ||
|
||
/** | ||
* | ||
*/ | ||
public class RestAliasAction extends AbstractCatAction { | ||
|
||
@Inject | ||
public RestAliasAction(Settings settings, Client client, RestController controller) { | ||
super(settings, client); | ||
controller.registerHandler(GET, "/_cat/aliases", this); | ||
controller.registerHandler(GET, "/_cat/aliases/{alias}", this); | ||
} | ||
|
||
|
||
@Override | ||
void doRequest(final RestRequest request, final RestChannel channel) { | ||
final ClusterStateRequest clusterStateRequest = new ClusterStateRequest(); | ||
clusterStateRequest.filterMetaData(true); | ||
clusterStateRequest.local(request.paramAsBoolean("local", clusterStateRequest.local())); | ||
clusterStateRequest.masterNodeTimeout(request.paramAsTime("master_timeout", clusterStateRequest.masterNodeTimeout())); | ||
clusterStateRequest.filterAll().filterMetaData(false); | ||
|
||
client.admin().cluster().state(clusterStateRequest, new ActionListener<ClusterStateResponse>() { | ||
|
||
@Override | ||
public void onResponse(ClusterStateResponse response) { | ||
try { | ||
Table tab = buildTable(request, response); | ||
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_alias"); | ||
sb.append("/_cat_alias/{alias}"); | ||
} | ||
|
||
@Override | ||
Table getTableWithHeader(RestRequest request) { | ||
final Table table = new Table(); | ||
table.startHeaders(); | ||
table.addCell("alias", "desc:alias name"); | ||
table.addCell("index", "desc:index alias points to"); | ||
table.addCell("filter", "desc:filter"); | ||
table.addCell("index_routing", "desc:index routing"); | ||
table.addCell("search_routing", "desc:search routing"); | ||
table.endHeaders(); | ||
return table; | ||
} | ||
|
||
private Table buildTable(RestRequest request, ClusterStateResponse response) { | ||
Table table = getTableWithHeader(request); | ||
|
||
for (ObjectObjectCursor<String, ImmutableOpenMap<String, AliasMetaData>> cursor : response.getState().getMetaData().aliases()) { | ||
String aliasName = cursor.key; | ||
Iterator<ObjectObjectCursor<String,AliasMetaData>> iterator = cursor.value.iterator(); | ||
while (iterator.hasNext()) { | ||
ObjectObjectCursor<String, AliasMetaData> iteratorCursor = iterator.next(); | ||
String indexName = iteratorCursor.key; | ||
AliasMetaData aliasMetaData = iteratorCursor.value; | ||
|
||
table.startRow(); | ||
table.addCell(aliasName); | ||
table.addCell(indexName); | ||
table.addCell(aliasMetaData.filteringRequired() ? "*" : "-"); | ||
String indexRouting = Strings.hasLength(aliasMetaData.indexRouting()) ? aliasMetaData.indexRouting() : "-"; | ||
table.addCell(indexRouting); | ||
String searchRouting = Strings.hasLength(aliasMetaData.searchRouting()) ? aliasMetaData.searchRouting() : "-"; | ||
table.addCell(searchRouting); | ||
table.endRow(); | ||
} | ||
} | ||
|
||
return table; | ||
} | ||
|
||
} |