org.elasticsearch.rest.action.admin.indices.mapping.get.RestGetFieldMappingAction Maven / Gradle / Ivy
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*
* http://www.apache.org/licenses/LICENSE-2.0
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package org.elasticsearch.rest.action.admin.indices.mapping.get;
import com.google.common.collect.ImmutableMap;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.admin.indices.mapping.get.GetFieldMappingsRequest;
import org.elasticsearch.action.admin.indices.mapping.get.GetFieldMappingsResponse;
import org.elasticsearch.action.admin.indices.mapping.get.GetFieldMappingsResponse.FieldMappingMetaData;
import org.elasticsearch.action.support.IndicesOptions;
import org.elasticsearch.client.Client;
import org.elasticsearch.common.Strings;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.xcontent.ToXContent;
import org.elasticsearch.common.xcontent.XContentBuilder;
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.NOT_FOUND;
import static org.elasticsearch.rest.RestStatus.OK;
/**
*
*/
public class RestGetFieldMappingAction extends BaseRestHandler {
@Inject
public RestGetFieldMappingAction(Settings settings, Client client, RestController controller) {
super(settings, client);
controller.registerHandler(GET, "/_mapping/field/{fields}", this);
controller.registerHandler(GET, "/_mapping/{type}/field/{fields}", this);
controller.registerHandler(GET, "/{index}/_mapping/field/{fields}", this);
controller.registerHandler(GET, "/{index}/{type}/_mapping/field/{fields}", this);
controller.registerHandler(GET, "/{index}/_mapping/{type}/field/{fields}", 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);
final String[] fields = Strings.splitStringByCommaToArray(request.param("fields"));
GetFieldMappingsRequest getMappingsRequest = new GetFieldMappingsRequest();
getMappingsRequest.indices(indices).types(types).local(local).fields(fields).includeDefaults(request.paramAsBoolean("include_defaults", false));
getMappingsRequest.indicesOptions(IndicesOptions.fromRequest(request, getMappingsRequest.indicesOptions()));
client.admin().indices().getFieldMappings(getMappingsRequest, new ActionListener() {
@SuppressWarnings("unchecked")
@Override
public void onResponse(GetFieldMappingsResponse response) {
try {
XContentBuilder builder = RestXContentBuilder.restContentBuilder(request);
builder.startObject();
ImmutableMap>> mappingsByIndex = response.mappings();
RestStatus status = OK;
if (mappingsByIndex.isEmpty() && fields.length > 0) {
status = NOT_FOUND;
}
response.toXContent(builder, ToXContent.EMPTY_PARAMS);
builder.endObject();
channel.sendResponse(new XContentRestResponse(request, status, 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);
}
}
});
}
}