/**
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.seyren.core.service.notification;
import java.io.IOException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.inject.Inject;
import javax.inject.Named;
import org.apache.commons.lang.StringUtils;
import org.apache.http.HttpEntity;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.utils.HttpClientUtils;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.HttpClientBuilder;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.seyren.core.domain.Alert;
import com.seyren.core.domain.Check;
import com.seyren.core.domain.Subscription;
import com.seyren.core.domain.SubscriptionType;
import com.seyren.core.exception.NotificationFailedException;
import com.seyren.core.util.config.SeyrenConfig;
@Named
public class HubotNotificationService implements NotificationService {
private static final Logger LOGGER = LoggerFactory.getLogger(HubotNotificationService.class);
private static final ObjectMapper MAPPER = new ObjectMapper();
private final SeyrenConfig seyrenConfig;
@Inject
public HubotNotificationService(SeyrenConfig seyrenConfig) {
this.seyrenConfig = seyrenConfig;
}
@Override
public void sendNotification(Check check, Subscription subscription, List<Alert> alerts) throws NotificationFailedException {
String hubotUrl = StringUtils.trimToNull(seyrenConfig.getHubotUrl());
if (hubotUrl == null) {
LOGGER.warn("Hubot URL needs to be set before sending notifications to Hubot");
return;
}
Map<String, Object> body = new HashMap<String, Object>();
body.put("seyrenUrl", seyrenConfig.getBaseUrl());
body.put("check", check);
body.put("subscription", subscription);
body.put("alerts", alerts);
body.put("rooms", subscription.getTarget().split(","));
HttpClient client = HttpClientBuilder.create().build();
HttpPost post = new HttpPost(hubotUrl + "/seyren/alert");
try {
HttpEntity entity = new StringEntity(MAPPER.writeValueAsString(body), ContentType.APPLICATION_JSON);
post.setEntity(entity);
client.execute(post);
} catch (IOException e) {
throw new NotificationFailedException("Sending notification to Hubot at " + hubotUrl + " failed.", e);
} finally {
HttpClientUtils.closeQuietly(client);
}
}
@Override
public boolean canHandle(SubscriptionType subscriptionType) {
return subscriptionType == SubscriptionType.HUBOT;
}
}