/*
* Licensed to Elastic Search and Shay Banon under one
* or more contributor license agreements. See the NOTICE file
* 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,
* 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.admin.indices.settings;
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.settings.Settings;
import org.elasticsearch.common.settings.SettingsFilter;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.rest.*;
import org.elasticsearch.rest.action.support.RestXContentBuilder;
import java.io.IOException;
import java.util.Map;
import static org.elasticsearch.rest.RestRequest.Method.*;
import static org.elasticsearch.rest.RestStatus.*;
import static org.elasticsearch.rest.action.support.RestActions.*;
public class RestGetSettingsAction extends BaseRestHandler {
private final SettingsFilter settingsFilter;
@Inject public RestGetSettingsAction(Settings settings, Client client, RestController controller, SettingsFilter settingsFilter) {
super(settings, client);
controller.registerHandler(GET, "/_settings", this);
controller.registerHandler(GET, "/{index}/_settings", this);
this.settingsFilter = settingsFilter;
}
@Override public void handleRequest(final RestRequest request, final RestChannel channel) {
final String[] indices = splitIndices(request.param("index"));
ClusterStateRequest clusterStateRequest = Requests.clusterStateRequest()
.filterRoutingTable(true)
.filterNodes(true)
.filteredIndices(indices);
client.admin().cluster().state(clusterStateRequest, new ActionListener<ClusterStateResponse>() {
@Override public void onResponse(ClusterStateResponse response) {
try {
MetaData metaData = response.state().metaData();
XContentBuilder builder = RestXContentBuilder.restContentBuilder(request);
builder.startObject();
for (IndexMetaData indexMetaData : metaData) {
builder.startObject(indexMetaData.index());
builder.startObject("settings");
Settings settings = settingsFilter.filterSettings(indexMetaData.settings());
for (Map.Entry<String, String> entry : settings.getAsMap().entrySet()) {
builder.field(entry.getKey(), entry.getValue());
}
builder.endObject();
builder.endObject();
}
builder.endObject();
channel.sendResponse(new XContentRestResponse(request, OK, builder));
} catch (Exception 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);
}
}
});
}
}