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/**
* This file is part of Graylog.
*
* Graylog is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Graylog is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Graylog. If not, see .
*/
package org.graylog2.rest.resources.streams.alerts;
import com.codahale.metrics.annotation.Timed;
import com.google.common.cache.Cache;
import com.google.common.cache.CacheBuilder;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import com.wordnik.swagger.annotations.Api;
import com.wordnik.swagger.annotations.ApiOperation;
import com.wordnik.swagger.annotations.ApiParam;
import com.wordnik.swagger.annotations.ApiResponse;
import com.wordnik.swagger.annotations.ApiResponses;
import org.apache.shiro.authz.annotation.RequiresAuthentication;
import org.graylog2.alerts.Alert;
import org.graylog2.alerts.AlertImpl;
import org.graylog2.alerts.AlertService;
import org.graylog2.database.NotFoundException;
import org.graylog2.plugin.Tools;
import org.graylog2.plugin.alarms.AlertCondition;
import org.graylog2.plugin.streams.Stream;
import org.graylog2.shared.rest.resources.RestResource;
import org.graylog2.security.RestPermissions;
import org.graylog2.streams.StreamService;
import org.joda.time.DateTime;
import org.joda.time.DateTimeZone;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.inject.Inject;
import javax.ws.rs.GET;
import javax.ws.rs.InternalServerErrorException;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.QueryParam;
import javax.ws.rs.core.MediaType;
import java.util.List;
import java.util.Map;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
@RequiresAuthentication
@Api(value = "Alerts", description = "Manage stream alerts")
@Path("/streams/{streamId}/alerts")
public class StreamAlertResource extends RestResource {
private static final Logger LOG = LoggerFactory.getLogger(StreamAlertResource.class);
private static final String CACHE_KEY_BASE = "alerts";
private static final Cache> CACHE = CacheBuilder.newBuilder()
.expireAfterWrite(AlertImpl.REST_CHECK_CACHE_SECONDS, TimeUnit.SECONDS)
.build();
private final StreamService streamService;
private final AlertService alertService;
@Inject
public StreamAlertResource(StreamService streamService,
AlertService alertService) {
this.streamService = streamService;
this.alertService = alertService;
}
@GET
@Timed
@ApiOperation(value = "Get the " + AlertImpl.MAX_LIST_COUNT + " most recent alarms of this stream.")
@Produces(MediaType.APPLICATION_JSON)
@ApiResponses(value = {
@ApiResponse(code = 404, message = "Stream not found."),
@ApiResponse(code = 400, message = "Invalid ObjectId.")
})
public Map list(@ApiParam(name = "streamId", value = "The stream id this new alert condition belongs to.", required = true)
@PathParam("streamId") String streamid,
@ApiParam(name = "since", value = "Optional parameter to define a lower date boundary. (UNIX timestamp)", required = false)
@QueryParam("since") int sinceTs) throws NotFoundException {
checkPermission(RestPermissions.STREAMS_READ, streamid);
final DateTime since;
if (sinceTs > 0) {
since = new DateTime(sinceTs * 1000L, DateTimeZone.UTC);
} else {
since = null;
}
final Stream stream = streamService.load(streamid);
final List