org.elasticsearch.rest.action.search.RestClearScrollAction Maven / Gradle / Ivy
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* the Apache License, Version 2.0 (the "License"); you may
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*
* http://www.apache.org/licenses/LICENSE-2.0
*
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* software distributed under the License is distributed on an
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*/
package org.elasticsearch.rest.action.search;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.search.ClearScrollRequest;
import org.elasticsearch.action.search.ClearScrollResponse;
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.XContentBuilder;
import org.elasticsearch.common.xcontent.XContentBuilderString;
import org.elasticsearch.rest.*;
import java.io.IOException;
import java.util.Arrays;
import static org.elasticsearch.rest.RestRequest.Method.DELETE;
import static org.elasticsearch.rest.RestStatus.OK;
import static org.elasticsearch.rest.action.support.RestXContentBuilder.restContentBuilder;
/**
*/
public class RestClearScrollAction extends BaseRestHandler {
@Inject
public RestClearScrollAction(Settings settings, Client client, RestController controller) {
super(settings, client);
controller.registerHandler(DELETE, "/_search/scroll", this);
controller.registerHandler(DELETE, "/_search/scroll/{scroll_id}", this);
}
@Override
public void handleRequest(final RestRequest request, final RestChannel channel) {
String scrollIds = request.param("scroll_id");
ClearScrollRequest clearRequest = new ClearScrollRequest();
clearRequest.setScrollIds(Arrays.asList(splitScrollIds(scrollIds)));
client.clearScroll(clearRequest, new ActionListener() {
@Override
public void onResponse(ClearScrollResponse response) {
try {
XContentBuilder builder = restContentBuilder(request);
builder.startObject();
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);
}
}
});
}
public static String[] splitScrollIds(String scrollIds) {
if (scrollIds == null) {
return Strings.EMPTY_ARRAY;
}
return Strings.splitStringByCommaToArray(scrollIds);
}
}