/**
* 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.util.ArrayList;
import java.util.List;
import javax.inject.Inject;
import javax.inject.Named;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.utils.HttpClientUtils;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.message.BasicNameValuePair;
import org.slf4j.LoggerFactory;
import com.seyren.core.domain.Alert;
import com.seyren.core.domain.AlertType;
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 HipChatNotificationService implements NotificationService {
private static final org.slf4j.Logger LOGGER = LoggerFactory.getLogger(HipChatNotificationService.class);
private final SeyrenConfig seyrenConfig;
private final String baseUrl;
@Inject
public HipChatNotificationService(SeyrenConfig seyrenConfig) {
this.seyrenConfig = seyrenConfig;
this.baseUrl = "https://api.hipchat.com";
}
protected HipChatNotificationService(SeyrenConfig seyrenConfig, String baseUrl) {
this.seyrenConfig = seyrenConfig;
this.baseUrl = baseUrl;
}
@Override
public void sendNotification(Check check, Subscription subscription, List<Alert> alerts) throws NotificationFailedException {
String token = seyrenConfig.getHipChatAuthToken();
String from = seyrenConfig.getHipChatUsername();
String[] roomIds = subscription.getTarget().split(",");
try {
if (check.getState() == AlertType.ERROR) {
String message = getHipChatMessage(check);
sendMessage(message, MessageColor.RED, roomIds, from, token, true);
} else if (check.getState() == AlertType.WARN) {
String message = getHipChatMessage(check);
sendMessage(message, MessageColor.YELLOW, roomIds, from, token, true);
} else if (check.getState() == AlertType.OK) {
String message = getHipChatMessage(check);
sendMessage(message, MessageColor.GREEN, roomIds, from, token, true);
} else {
LOGGER.warn("Did not send notification to HipChat for check in state: {}", check.getState());
}
} catch (Exception e) {
throw new NotificationFailedException("Failed to send notification to HipChat", e);
}
}
private String getHipChatMessage(Check check) {
String message = "Check <a href=" + seyrenConfig.getBaseUrl() + "/#/checks/" + check.getId() + ">" + check.getName() + "</a> has entered its " + check.getState().toString() + " state.";
return message;
}
private void sendMessage(String message, MessageColor color, String[] roomIds, String from, String authToken, boolean notify) {
for (String roomId : roomIds) {
LOGGER.info("Posting: {} to {}: {} {}", from, roomId, message, color);
HttpClient client = HttpClientBuilder.create().build();
String url = baseUrl + "/v1/rooms/message";
HttpPost post = new HttpPost(url);
try {
List<BasicNameValuePair> parameters = new ArrayList<BasicNameValuePair>();
parameters.add(new BasicNameValuePair("auth_token", authToken));
parameters.add(new BasicNameValuePair("from", from));
parameters.add(new BasicNameValuePair("room_id", roomId));
parameters.add(new BasicNameValuePair("message", message));
parameters.add(new BasicNameValuePair("color", color.name().toLowerCase()));
if (notify) {
parameters.add(new BasicNameValuePair("notify", "1"));
}
post.setEntity(new UrlEncodedFormEntity(parameters));
client.execute(post);
} catch (Exception e) {
LOGGER.warn("Error posting to HipChat", e);
} finally {
post.releaseConnection();
HttpClientUtils.closeQuietly(client);
}
}
}
@Override
public boolean canHandle(SubscriptionType subscriptionType) {
return subscriptionType == SubscriptionType.HIPCHAT;
}
private enum MessageColor {
YELLOW, RED, GREEN, PURPLE, RANDOM;
}
}