org.elasticsearch.rest.action.admin.indices.warmer.get.RestGetWarmerAction Maven / Gradle / Ivy
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* Licensed to Elastic Search and Shay Banon under one
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* distributed with this work for additional information
* regarding copyright ownership. Elastic Search 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,
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package org.elasticsearch.rest.action.admin.indices.warmer.get;
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.client.Requests;
import org.elasticsearch.cluster.metadata.IndexMetaData;
import org.elasticsearch.cluster.metadata.MetaData;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.regex.Regex;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.index.Index;
import org.elasticsearch.indices.IndexMissingException;
import org.elasticsearch.rest.*;
import org.elasticsearch.rest.action.support.RestXContentBuilder;
import org.elasticsearch.search.warmer.IndexWarmerMissingException;
import org.elasticsearch.search.warmer.IndexWarmersMetaData;
import java.io.IOException;
import static org.elasticsearch.rest.RestRequest.Method.GET;
import static org.elasticsearch.rest.RestStatus.OK;
import static org.elasticsearch.rest.action.support.RestActions.splitIndices;
/**
*
*/
public class RestGetWarmerAction extends BaseRestHandler {
@Inject
public RestGetWarmerAction(Settings settings, Client client, RestController controller) {
super(settings, client);
controller.registerHandler(GET, "/{index}/_warmer", this);
controller.registerHandler(GET, "/{index}/_warmer/{name}", this);
controller.registerHandler(GET, "/{index}/{type}/_warmer/{name}", this);
}
@Override
public void handleRequest(final RestRequest request, final RestChannel channel) {
final String[] indices = splitIndices(request.param("index"));
final String name = request.param("name");
ClusterStateRequest clusterStateRequest = Requests.clusterStateRequest()
.filterAll()
.filterMetaData(false)
.filteredIndices(indices);
clusterStateRequest.listenerThreaded(false);
client.admin().cluster().state(clusterStateRequest, new ActionListener() {
@Override
public void onResponse(ClusterStateResponse response) {
try {
MetaData metaData = response.getState().metaData();
if (indices.length == 1 && metaData.indices().isEmpty()) {
channel.sendResponse(new XContentThrowableRestResponse(request, new IndexMissingException(new Index(indices[0]))));
return;
}
XContentBuilder builder = RestXContentBuilder.restContentBuilder(request);
builder.startObject();
boolean wroteOne = false;
for (IndexMetaData indexMetaData : metaData) {
IndexWarmersMetaData warmers = indexMetaData.custom(IndexWarmersMetaData.TYPE);
if (warmers == null) {
continue;
}
boolean foundOne = false;
for (IndexWarmersMetaData.Entry entry : warmers.entries()) {
if (name == null || Regex.simpleMatch(name, entry.name())) {
foundOne = true;
wroteOne = true;
break;
}
}
if (foundOne) {
builder.startObject(indexMetaData.index(), XContentBuilder.FieldCaseConversion.NONE);
builder.startObject(IndexWarmersMetaData.TYPE, XContentBuilder.FieldCaseConversion.NONE);
for (IndexWarmersMetaData.Entry entry : warmers.entries()) {
if (name == null || Regex.simpleMatch(name, entry.name())) {
IndexWarmersMetaData.FACTORY.toXContent(entry, builder, request);
}
}
builder.endObject();
builder.endObject();
}
}
builder.endObject();
if (!wroteOne && name != null) {
// did not find any...
channel.sendResponse(new XContentThrowableRestResponse(request, new IndexWarmerMissingException(name)));
return;
}
channel.sendResponse(new XContentRestResponse(request, OK, builder));
} 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);
}
}
});
}
}