de.codecentric.boot.admin.notify.HipchatNotifier.java Source code

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Here is the source code for de.codecentric.boot.admin.notify.HipchatNotifier.java

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/*
 * Copyright 2013-2014 the original author or authors.
 *
 * 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 de.codecentric.boot.admin.notify;

import java.net.URI;
import java.util.HashMap;
import java.util.Map;

import org.springframework.expression.Expression;
import org.springframework.expression.ParserContext;
import org.springframework.expression.spel.standard.SpelExpressionParser;
import org.springframework.web.client.RestTemplate;

import de.codecentric.boot.admin.event.ClientApplicationStatusChangedEvent;

/**
 * Notifier submitting events to HipChat.
 *
 * @author Jamie Brown
 */
public class HipchatNotifier extends AbstractStatusChangeNotifier {
    private final static String DEFAULT_DESCRIPTION = "<strong>#{application.name}</strong>/#{application.id} is <strong>#{to.status}</strong>";

    private final SpelExpressionParser parser = new SpelExpressionParser();
    private RestTemplate restTemplate = new RestTemplate();

    /**
     * Base URL for HipChat API (i.e. https://ACCOUNT_NAME.hipchat.com/v2
     */
    private URI url;

    /**
     * API token that has access to notify in the room
     */
    private String authToken;

    /**
     * Id of the room to notify
     */
    private String roomId;

    /**
     * TRUE will cause OS notification, FALSE will only notify to room
     */
    private Boolean notify;

    /**
     * Trigger description. SpEL template using event as root;
     */
    private Expression description;

    public HipchatNotifier() {
        this.description = parser.parseExpression(DEFAULT_DESCRIPTION, ParserContext.TEMPLATE_EXPRESSION);
    }

    @Override
    protected void doNotify(ClientApplicationStatusChangedEvent event) {
        restTemplate.postForEntity(buildUrl(), createHipChatNotification(event), Void.class);
    }

    protected String buildUrl() {
        return String.format("%s/room/%s/notification?auth_token=%s", url.toString(), roomId, authToken);
    }

    private Map<String, Object> createHipChatNotification(ClientApplicationStatusChangedEvent event) {
        Map<String, Object> result = new HashMap<String, Object>();
        String color = "UP".equals(event.getTo().getStatus()) ? "green" : "red";
        String message = description.getValue(event, String.class);
        result.put("color", color);
        result.put("message", message);
        result.put("notify", Boolean.TRUE.equals(notify));
        result.put("message_format", "html");
        return result;
    }

    public void setUrl(URI url) {
        this.url = url;
    }

    public void setAuthToken(String authToken) {
        this.authToken = authToken;
    }

    public void setRoomId(String roomId) {
        this.roomId = roomId;
    }

    public void setNotify(Boolean notify) {
        this.notify = notify;
    }

    public void setDescription(String description) {
        this.description = parser.parseExpression(description, ParserContext.TEMPLATE_EXPRESSION);
    }

    public void setRestTemplate(RestTemplate restTemplate) {
        this.restTemplate = restTemplate;
    }
}