Class which makes API Calls to HipChat Servers

HipChatNotifier.java

/**
 * This class exposes a method
 * to send a message to Hip Chat in a 
 * specific Room named Hip Chat
 * API Exploration.
 * 
 * @author      Shruti Sridharan
 * @since       23/02/2016
 * @version     1.0
 */
public class HipChatNotifier {
    
    /**
     * This method calls the
     * HipChat Notification 
     * Endpoint and gets a 
     * response from the Servers.
     * 
     * @param       myMessage   Accepts a custom message.
     * @since       23/02/2016
     * @version     1.0
     */
    @future( callout = true )
    public static void notify( String myMessage ) {
        /**
         * Getting endpoint from the Custom Settings.
         */
        String endpoint = HipChat_API_Setting__c.getInstance( 'HipChat Notification Endpoint' ).Value__c;
        
        /**
         * Setting the body.
         */
        String body = '{"color":"red","message":"' + myMessage + '","notify":true,"message_format":"text"}';
        
        Http http = new Http();
        HttpRequest httpReq = new HttpRequest();
        HttpResponse httpRes = new HttpResponse();
        
        /**
         * Sending http request to display
         * message in HipChat API
         * Exploration Group
         */
        httpReq.setBody( body ); 
        httpReq.setMethod( 'POST' ); 
        httpReq.setHeader( 'Content-Type', 'application/json' );
        httpReq.setEndpoint( endpoint ); 
        
        httpRes = http.send( httpReq ); 
    }
}