org.elasticsearch.rest.action.cat.RestCountAction Maven / Gradle / Ivy
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package org.elasticsearch.rest.action.cat;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.count.CountRequest;
import org.elasticsearch.action.count.CountResponse;
import org.elasticsearch.action.support.QuerySourceBuilder;
import org.elasticsearch.action.support.broadcast.BroadcastOperationThreading;
import org.elasticsearch.client.Client;
import org.elasticsearch.common.Strings;
import org.elasticsearch.common.Table;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.rest.RestChannel;
import org.elasticsearch.rest.RestController;
import org.elasticsearch.rest.RestRequest;
import org.elasticsearch.rest.XContentThrowableRestResponse;
import org.elasticsearch.rest.action.support.RestActions;
import org.elasticsearch.rest.action.support.RestTable;
import org.joda.time.format.DateTimeFormat;
import org.joda.time.format.DateTimeFormatter;
import java.io.IOException;
import static org.elasticsearch.rest.RestRequest.Method.GET;
public class RestCountAction extends AbstractCatAction {
@Inject
protected RestCountAction(Settings settings, Client client, RestController restController) {
super(settings, client);
restController.registerHandler(GET, "/_cat/count", this);
restController.registerHandler(GET, "/_cat/count/{index}", this);
}
@Override
void documentation(StringBuilder sb) {
sb.append("/_cat/count\n");
sb.append("/_cat/count/{index}\n");
}
@Override
public void doRequest(final RestRequest request, final RestChannel channel) {
String[] indices = Strings.splitStringByCommaToArray(request.param("index"));
CountRequest countRequest = new CountRequest(indices);
countRequest.operationThreading(BroadcastOperationThreading.SINGLE_THREAD);
String source = request.param("source");
if (source != null) {
countRequest.source(source);
} else {
QuerySourceBuilder querySourceBuilder = RestActions.parseQuerySource(request);
if (querySourceBuilder != null) {
countRequest.source(querySourceBuilder);
}
}
client.count(countRequest, new ActionListener() {
@Override
public void onResponse(CountResponse countResponse) {
try {
channel.sendResponse(RestTable.buildResponse(buildTable(request, countResponse), request, channel));
} catch (Throwable t) {
onFailure(t);
}
}
@Override
public void onFailure(Throwable t) {
try {
channel.sendResponse(new XContentThrowableRestResponse(request, t));
} catch (IOException e) {
logger.error("Failed to send failure response", e);
}
}
});
}
@Override
Table getTableWithHeader(final RestRequest request) {
Table table = new Table();
table.startHeaders();
table.addCell("epoch", "desc:seconds since 1970-01-01 00:00:00, that the count was executed");
table.addCell("timestamp", "desc:time that the count was executed");
table.addCell("count", "desc:the document count");
table.endHeaders();
return table;
}
private DateTimeFormatter dateFormat = DateTimeFormat.forPattern("HH:mm:ss");
private Table buildTable(RestRequest request, CountResponse response) {
Table table = getTableWithHeader(request);
long time = System.currentTimeMillis() / 1000;
table.startRow();
table.addCell(time);
table.addCell(dateFormat.print(time));
table.addCell(response.getCount());
table.endRow();
return table;
}
}