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/*
* 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.admin.indices.mapping.get;
import com.carrotsearch.hppc.cursors.ObjectObjectCursor;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.admin.indices.mapping.get.GetMappingsRequest;
import org.elasticsearch.action.admin.indices.mapping.get.GetMappingsResponse;
import org.elasticsearch.action.support.IndicesOptions;
import org.elasticsearch.client.Client;
import org.elasticsearch.cluster.metadata.MappingMetaData;
import org.elasticsearch.common.Strings;
import org.elasticsearch.common.collect.ImmutableOpenMap;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.common.xcontent.XContentBuilderString;
import org.elasticsearch.index.Index;
import org.elasticsearch.indices.IndexMissingException;
import org.elasticsearch.indices.TypeMissingException;
import org.elasticsearch.rest.*;
import org.elasticsearch.rest.action.support.RestXContentBuilder;
import java.io.IOException;
import static org.elasticsearch.rest.RestRequest.Method.GET;
import static org.elasticsearch.rest.RestStatus.OK;
/**
*
*/
public class RestGetMappingAction extends BaseRestHandler {
@Inject
public RestGetMappingAction(Settings settings, Client client, RestController controller) {
super(settings, client);
controller.registerHandler(GET, "/_mapping", this);
controller.registerHandler(GET, "/{index}/_mapping", this);
controller.registerHandler(GET, "/{index}/{type}/_mapping", this);
controller.registerHandler(GET, "/{index}/_mappings/{type}", this);
controller.registerHandler(GET, "/{index}/_mapping/{type}", this);
controller.registerHandler(GET, "/_mapping/{type}", this);
}
@Override
public void handleRequest(final RestRequest request, final RestChannel channel) {
final String[] indices = Strings.splitStringByCommaToArray(request.param("index"));
final String[] types = request.paramAsStringArrayOrEmptyIfAll("type");
boolean local = request.paramAsBooleanOptional("local", false);
GetMappingsRequest getMappingsRequest = new GetMappingsRequest();
getMappingsRequest.indices(indices).types(types).local(local);
getMappingsRequest.indicesOptions(IndicesOptions.fromRequest(request, getMappingsRequest.indicesOptions()));
client.admin().indices().getMappings(getMappingsRequest, new ActionListener() {
@Override
public void onResponse(GetMappingsResponse response) {
try {
XContentBuilder builder = RestXContentBuilder.restContentBuilder(request);
builder.startObject();
ImmutableOpenMap> mappingsByIndex = response.getMappings();
if (mappingsByIndex.isEmpty()) {
if (indices.length != 0 && types.length != 0) {
channel.sendResponse(new XContentRestResponse(request, OK, RestXContentBuilder.emptyBuilder(request)));
} else if (indices.length != 0) {
channel.sendResponse(new XContentThrowableRestResponse(request, new IndexMissingException(new Index(indices[0]))));
} else if (types.length != 0) {
channel.sendResponse(new XContentThrowableRestResponse(request, new TypeMissingException(new Index("_all"), types[0])));
} else {
builder.endObject();
channel.sendResponse(new XContentRestResponse(request, OK, builder));
}
return;
}
for (ObjectObjectCursor> indexEntry : mappingsByIndex) {
if (indexEntry.value.isEmpty()) {
continue;
}
builder.startObject(indexEntry.key, XContentBuilder.FieldCaseConversion.NONE);
builder.startObject(Fields.MAPPINGS);
for (ObjectObjectCursor typeEntry : indexEntry.value) {
builder.field(typeEntry.key);
builder.map(typeEntry.value.sourceAsMap());
}
builder.endObject();
builder.endObject();
}
builder.endObject();
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);
}
}
});
}
static class Fields {
static final XContentBuilderString MAPPINGS = new XContentBuilderString("mappings");
}
}
