Added Tweet Step

src/main/java/com/amihaiemil/charles/github/DeleteIndexKn.java

@@ -71,7 +71,7 @@ public Step handle(final Command com) throws IOException {
                                         com.authorLogin(), com.repo().name(), this.logsLoc.address()
                                     )
                                 ),
-                                new Step.FinalStep()
+                                new Tweet(new Step.FinalStep())
                             )
                         )
                     ),

src/main/java/com/amihaiemil/charles/github/IndexPageKn.java

@@ -79,7 +79,7 @@ public Step handle(final Command com) throws IOException {
                                             com.authorLogin(), this.logsLoc.address()
                                         )
                                     ),
-                                    new Step.FinalStep()
+                                    new Tweet(new Step.FinalStep())
                                 )
                             )
                         )

src/main/java/com/amihaiemil/charles/github/IndexSiteKn.java

@@ -78,7 +78,7 @@ public Step handle(final Command com) throws IOException {
                                         com.authorLogin(), this.logsLoc.address()
                                     )
                                 ),
-                                new Step.FinalStep()
+                                new Tweet(new Step.FinalStep())
                             )
                         )
                     )

src/main/java/com/amihaiemil/charles/github/IndexSitemapKn.java

@@ -78,7 +78,7 @@ public Step handle(final Command com) throws IOException {
                                             com.authorLogin(), this.logsLoc.address()
                                         )
                                     ),
-                                    new Step.FinalStep()
+                                    new Tweet(new Step.FinalStep())
                                 )
                             )
                         )

src/main/java/com/amihaiemil/charles/github/Tweet.java

@@ -0,0 +1,109 @@
+/**
+ * Copyright (c) 2016-2017, Mihai Emil Andronache
+ * All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *  1)Redistributions of source code must retain the above copyright notice,
+ *  this list of conditions and the following disclaimer.
+ *  2)Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *  3)Neither the name of charles-rest nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+package com.amihaiemil.charles.github;
+
+import java.io.IOException;
+import org.slf4j.Logger;
+import twitter4j.Twitter;
+import twitter4j.TwitterFactory;
+import twitter4j.auth.AccessToken;
+
+/**
+ * The bot can tweet at the end of each action.
+ * @author Mihai Andronache ([email protected])
+ * @version $Id$
+ * @since 1.0.1
+ */
+public final class Tweet extends IntermediaryStep {
+
+	/**
+	 * Ctor.
+	 * @param next Next step to execute.
+	 */
+    public Tweet(final Step next) {
+        super(next);
+    }
+
+    @Override
+    public void perform(Command command, Logger logger) throws IOException {
+    	if(command.repo().charlesYml().tweet()) {
+		    try {
+		    	final Twitter twitter = twitter();
+		    	if(twitter != null) {
+		    		String message = message(command);
+		    		if(!message.isEmpty()) {
+			    	    twitter.updateStatus(message);
+		    		} else {
+		    			logger.warn("Could not built message for twitter. Not twitting anything.");
+		    		}
+		    	} else {
+		    		logger.warn("One of the 4 tweeter system properties is missing! Cannot tweet!");
+		    	}
+		    } catch (final Exception ex) {//don't rethrow it, tweeting is only a cosmetic thing, not critical..
+		        logger.error("Failed to tweet... ", ex);
+		    }
+    	} else {
+    		logger.info("Tweeting is disabled, won't tweet. You can enable tweeting via .charles.yml file.");
+    	}
+        this.next().perform(command, logger);
+    }
+
+    /**
+     * Build the message to tweet.
+     * @param com Command.
+     * @return String message
+     * @throws IOException if the message cannot be built.
+     */
+    private static String message(final Command com) throws IOException {
+    	final String unformatted = com.language().response("tweet." + com.type());
+    	final String issueUrl = com.issue().json().getString("url", "");
+    	if(unformatted == null || unformatted.isEmpty() || issueUrl.isEmpty()) {
+    		return "";
+    	}
+    	return String.format(unformatted, issueUrl);
+    }
+
+    /**
+     * Get a {@link Twitter} instance.
+     */
+    private static Twitter twitter() {
+    	final String key = System.getProperty("twitter.key", "");
+    	final String secret = System.getProperty("twitter.secret", "");
+    	final String token  = System.getProperty("twitter.token", "");
+    	final String tsecret = System.getProperty("twitter.token.secret", "");
+
+    	if(key.isEmpty() || secret.isEmpty() || token.isEmpty() || tsecret.isEmpty()) {
+    		return null;
+    	} else {
+    		final TwitterFactory factory = new TwitterFactory();
+        	final Twitter twitter = factory.getInstance();
+            twitter.setOAuthConsumer(key, secret);
+            twitter.setOAuthAccessToken(new AccessToken(token, tsecret));
+            return twitter;
+    	}
+
+    }
+}

src/main/resources/responses_en.properties

@@ -46,4 +46,8 @@ deleteindex.finished.comment=@%s the `%s` index was successfully deleted. \n\
                               See [logs](%s) for details.\n\n\
                               If you can spare a minute, please consider opening an issue [here](https://github.com/opencharles/charles-rest/issues/new),\
                               let us know why you stopped using this service, what you didn't like and what we could improve. Thanks!
-                         
+                              
+tweet.indexsite=I just crawled and indexed the following #ghpages website: \n\n %s \n\n #github #elasticsearch #aws
+tweet.indexpage=I just indexed a new page of the #ghpages website: \n\n %s \n\n #github #elasticsearch #aws
+tweet.indexsitemap=I just indexed the sitemap of the #ghpages website: \n\n %s \n\n #github #elasticsearch #aws
+tweet.deleteindex=Unfortunately, I had to delete the index of the #ghpages website: \n\n %s \n\n :( #github #elasticsearch #aws