/**
* 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 static java.lang.String.*;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.Writer;
import java.net.Socket;
import java.util.Arrays;
import java.util.List;
import javax.inject.Inject;
import javax.inject.Named;
import org.slf4j.LoggerFactory;
import com.google.common.io.Closer;
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 IrcCatNotificationService implements NotificationService {
private static final org.slf4j.Logger LOGGER = LoggerFactory.getLogger(IrcCatNotificationService.class);
private final SeyrenConfig seyrenConfig;
@Inject
public IrcCatNotificationService(SeyrenConfig seyrenConfig) {
this.seyrenConfig = seyrenConfig;
}
@Override
public void sendNotification(Check check, Subscription subscription, List<Alert> alerts) throws NotificationFailedException {
List<String> channels = Arrays.asList(subscription.getTarget().split(","));
try {
for (String channel : channels) {
String message = createMessage(check);
sendMessage(seyrenConfig.getIrcCatHost(), seyrenConfig.getIrcCatPort(), message, channel);
}
} catch (IOException ioe) {
throw new NotificationFailedException("Could not send message", ioe);
}
}
private String createMessage(Check check) {
String checkUrl = seyrenConfig.getBaseUrl() + "/#/checks/" + check.getId();
if (check.getState() == AlertType.ERROR) {
return format("%%RED[CRIT]%%NORMAL %s | Please check %s.", check.getName(), checkUrl);
}
if (check.getState() == AlertType.WARN) {
return format("%%YELLOW[WARN]%%NORMAL %s | Please check %s.", check.getName(), checkUrl);
}
if (check.getState() == AlertType.OK) {
return format("%%GREEN[OK]%%NORMAL %s | %s", check.getName(), checkUrl);
}
LOGGER.info("Unmanaged check state [%s] for check [%s]", check.getState(), check.getName());
return "";
}
private void sendMessage(String ircCatHost, int ircCatPort, String message, String channel) throws IOException {
Socket socket = new Socket(ircCatHost, ircCatPort);
Closer closer = Closer.create();
try {
Writer out = closer.register(new OutputStreamWriter(socket.getOutputStream()));
out.write(format("%s %s\n", channel, message));
out.flush();
} catch (IOException e) {
socket.close();
throw closer.rethrow(e);
} finally {
closer.close();
}
}
@Override
public boolean canHandle(SubscriptionType subscriptionType) {
return subscriptionType == SubscriptionType.IRCCAT;
}
}