package org.xbib.elasticsearch.rest.action.websocket;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.delete.DeleteResponse;
import org.elasticsearch.client.Client;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.rest.BaseRestHandler;
import org.elasticsearch.rest.RestChannel;
import org.elasticsearch.rest.RestController;
import org.elasticsearch.rest.RestRequest;
import org.xbib.elasticsearch.rest.XContentRestResponse;
import org.xbib.elasticsearch.rest.XContentThrowableRestResponse;
import org.xbib.elasticsearch.action.websocket.pubsub.PubSubIndexName;
import java.io.IOException;
import static org.elasticsearch.rest.RestStatus.BAD_REQUEST;
import static org.elasticsearch.rest.RestStatus.OK;
import static org.xbib.elasticsearch.rest.RestXContentBuilder.restContentBuilder;
/**
* Unsubscribe action for REST
*/
public class RestUnsubscribeAction extends BaseRestHandler {
private final String pubSubIndexName;
@Inject
public RestUnsubscribeAction(Settings settings, Client client,
RestController restController) {
super(settings, client);
this.pubSubIndexName = PubSubIndexName.Conf.indexName(settings);
restController.registerHandler(RestRequest.Method.GET, "/_unsubscribe", this);
restController.registerHandler(RestRequest.Method.POST, "/_unsubscribe", this);
}
@Override
public void handleRequest(final RestRequest request, final RestChannel channel, Client client) {
String subscriberId = request.hasParam("subscriber") ? request.param("subscriber") : null;
if (subscriberId == null) {
try {
channel.sendResponse(new XContentThrowableRestResponse(request, new IllegalArgumentException("no subscriber")));
} catch (IOException e) {
logger.error("error while sending failure response", e);
}
return;
}
try {
client.prepareDelete(pubSubIndexName, "subscribe", subscriberId)
.execute(new ActionListener<DeleteResponse>() {
@Override
public void onResponse(DeleteResponse response) {
try {
XContentBuilder builder = restContentBuilder(request);
builder.startObject().field("ok", true).field("id", response.getId()).endObject();
channel.sendResponse(new XContentRestResponse(request, OK, builder));
} catch (Exception e) {
onFailure(e);
}
}
@Override
public void onFailure(Throwable e) {
try {
logger.error("error while processing unsubscribe request", e);
channel.sendResponse(new XContentThrowableRestResponse(request, e));
} catch (IOException e1) {
logger.error("error while sending error response", e1);
}
}
});
} catch (Exception e) {
try {
XContentBuilder builder = restContentBuilder(request);
channel.sendResponse(new XContentRestResponse(request, BAD_REQUEST, builder.startObject().field("error", e.getMessage()).endObject()));
} catch (IOException e1) {
logger.error("exception while sending exception response", e1);
}
}
}
}