one way for inititialization and finalization: using constructor's initialization or method init() and AutoCloseable inteface and method close()

1 files changed, 23 insertions, 8 deletions

diff --git a/juick-api/src/main/java/com/juick/api/Main.java b/juick-api/src/main/java/com/juick/api/Main.java
index 6d7deeac..669dc11d 100644
--- a/juick-api/src/main/java/com/juick/api/Main.java
+++ b/juick-api/src/main/java/com/juick/api/Main.java
@@ -55,8 +55,8 @@ import java.nio.file.Paths;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Properties;
+
 /**
- *
  * @author Ugnich Anton
  */
 @WebServlet(name = "Main", urlPatterns = {"/"})
@@ -103,6 +103,19 @@ public class Main extends HttpServlet {
         }
     }
 
+    @Override
+    public void destroy() {
+        try {
+            if (xmpp != null)
+                xmpp.close();
+
+            log("ExternalComponent on juick-api destroyed");
+        } catch (Exception e) {
+            log("Exception occurs on juick-api destroy", e);
+        }
+
+    }
+
     public void setupXmppComponent(final String host, final int port, final String jid, final String password) {
         XmppSessionConfiguration configuration = XmppSessionConfiguration.builder()
                 .extensions(Extension.of(com.juick.Message.class))
@@ -115,12 +128,13 @@ public class Main extends HttpServlet {
         }
     }
 
-    /** 
+    /**
      * Handles the HTTP <code>GET</code> method.
-     * @param request servlet request
+     *
+     * @param request  servlet request
      * @param response servlet response
      * @throws ServletException if a servlet-specific error occurs
-     * @throws IOException if an I/O error occurs
+     * @throws IOException      if an I/O error occurs
      */
     @Override
     protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
@@ -182,12 +196,13 @@ public class Main extends HttpServlet {
         }
     }
 
-    /** 
+    /**
      * Handles the HTTP <code>POST</code> method.
-     * @param request servlet request
+     *
+     * @param request  servlet request
      * @param response servlet response
      * @throws ServletException if a servlet-specific error occurs
-     * @throws IOException if an I/O error occurs
+     * @throws IOException      if an I/O error occurs
      */
     @Override
     protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
@@ -272,7 +287,7 @@ public class Main extends HttpServlet {
         }
 
         String paramImg = request.getParameter("img");
-        if (attachmentFName == null && paramImg != null && paramImg.length() > 10 ) {
+        if (attachmentFName == null && paramImg != null && paramImg.length() > 10) {
             try {
                 URL imgUrl = new URL(paramImg);
                 attachmentFName = Utils.downloadImage(imgUrl);