Cleanup code

checkstyle-suppressions.xml

@@ -11,4 +11,8 @@
   <suppress checks="AbbreviationAsWordInName" files="."/>
   <suppress checks="LineLength" files="."/>
   <suppress checks="VariableDeclarationUsageDistance" files="."/>
-</suppressions>
+  <suppress checks="OverloadMethodsDeclarationOrder" files="."/>
+  <suppress checks="NonEmptyAtclauseDescription" files="."/>
+  <suppress checks="TypeName" files="Draft_6455.java"/>
+  <suppress checks="RightCurly" files="Base64.java"/>
+</suppressions>

src/main/java/org/java_websocket/SocketChannelIOHelper.java

@@ -94,7 +94,8 @@ public static boolean batch(WebSocketImpl ws, ByteChannel sockchannel) throws IO
         }
       }
     } else {
-      do {// FIXME writing as much as possible is unfair!!
+      do {
+        // FIXME writing as much as possible is unfair!!
         /*int written = */
         sockchannel.write(buffer);
         if (buffer.remaining() > 0) {

src/main/java/org/java_websocket/WebSocketImpl.java

@@ -204,9 +204,8 @@ public WebSocketImpl(WebSocketListener listener, List<Draft> drafts) {
    * @param draft    The draft which should be used
    */
   public WebSocketImpl(WebSocketListener listener, Draft draft) {
-    if (listener == null || (draft == null && role
-        == Role.SERVER))// socket can be null because we want do be able to create the object without already having a bound channel
-    {
+    // socket can be null because we want do be able to create the object without already having a bound channel
+    if (listener == null || (draft == null && role == Role.SERVER)) {
       throw new IllegalArgumentException("parameters must not be null");
     }
     this.outQueue = new LinkedBlockingQueue<ByteBuffer>();

src/main/java/org/java_websocket/drafts/Draft_6455.java

@@ -443,12 +443,12 @@ public HandshakeBuilder postProcessHandshakeResponseAsServer(ClientHandshake req
   @Override
   public Draft copyInstance() {
     ArrayList<IExtension> newExtensions = new ArrayList<IExtension>();
-    for (IExtension iExtension : getKnownExtensions()) {
-      newExtensions.add(iExtension.copyInstance());
+    for (IExtension extension : getKnownExtensions()) {
+      newExtensions.add(extension.copyInstance());
     }
     ArrayList<IProtocol> newProtocols = new ArrayList<IProtocol>();
-    for (IProtocol iProtocol : getKnownProtocols()) {
-      newProtocols.add(iProtocol.copyInstance());
+    for (IProtocol protocol : getKnownProtocols()) {
+      newProtocols.add(protocol.copyInstance());
     }
     return new Draft_6455(newExtensions, newProtocols, maxFrameSize);
   }
@@ -589,8 +589,8 @@ private Framedata translateSingleFrame(ByteBuffer buffer)
   private TranslatedPayloadMetaData translateSingleFramePayloadLength(ByteBuffer buffer,
       Opcode optcode, int oldPayloadlength, int maxpacketsize, int oldRealpacketsize)
       throws InvalidFrameException, IncompleteException, LimitExceededException {
-    int payloadlength = oldPayloadlength,
-        realpacketsize = oldRealpacketsize;
+    int payloadlength = oldPayloadlength;
+    int realpacketsize = oldRealpacketsize;
     if (optcode == Opcode.PING || optcode == Opcode.PONG || optcode == Opcode.CLOSING) {
       log.trace("Invalid frame: more than 125 octets");
       throw new InvalidFrameException("more than 125 octets");
@@ -660,19 +660,16 @@ private void translateSingleFrameCheckPacketSize(int maxpacketsize, int realpack
    * @return byte that represents which RSV bit is set.
    */
   private byte getRSVByte(int rsv) {
-    if (rsv == 1) // 0100 0000
-    {
-      return 0x40;
-    }
-    if (rsv == 2) // 0010 0000
-    {
-      return 0x20;
-    }
-    if (rsv == 3) // 0001 0000
-    {
-      return 0x10;
+    switch (rsv) {
+      case 1 : // 0100 0000
+        return 0x40;
+      case 2 : // 0010 0000
+        return 0x20;
+      case 3 : // 0001 0000
+        return 0x10;
+      default:
+        return 0;
     }
-    return 0;
   }
 
   /**

src/main/java/org/java_websocket/server/WebSocketServer.java

@@ -361,17 +361,17 @@ public void run() {
       return;
     }
     try {
-      int iShutdownCount = 5;
+      int shutdownCount = 5;
       int selectTimeout = 0;
-      while (!selectorthread.isInterrupted() && iShutdownCount != 0) {
+      while (!selectorthread.isInterrupted() && shutdownCount != 0) {
         SelectionKey key = null;
         try {
           if (isclosed.get()) {
             selectTimeout = 5;
           }
           int keyCount = selector.select(selectTimeout);
           if (keyCount == 0 && isclosed.get()) {
-            iShutdownCount--;
+            shutdownCount--;
           }
           Set<SelectionKey> keys = selector.selectedKeys();
           Iterator<SelectionKey> i = keys.iterator();
@@ -993,15 +993,15 @@ public void broadcast(String text, Collection<WebSocket> clients) {
    * @param clients the clients to send the message to
    */
   private void doBroadcast(Object data, Collection<WebSocket> clients) {
-    String sData = null;
+    String strData = null;
     if (data instanceof String) {
-      sData = (String) data;
+      strData = (String) data;
     }
-    ByteBuffer bData = null;
+    ByteBuffer byteData = null;
     if (data instanceof ByteBuffer) {
-      bData = (ByteBuffer) data;
+      byteData = (ByteBuffer) data;
     }
-    if (sData == null && bData == null) {
+    if (strData == null && byteData == null) {
       return;
     }
     Map<Draft, List<Framedata>> draftFrames = new HashMap<Draft, List<Framedata>>();
@@ -1012,7 +1012,7 @@ private void doBroadcast(Object data, Collection<WebSocket> clients) {
     for (WebSocket client : clientCopy) {
       if (client != null) {
         Draft draft = client.getDraft();
-        fillFrames(draft, draftFrames, sData, bData);
+        fillFrames(draft, draftFrames, strData, byteData);
         try {
           client.sendFrame(draftFrames.get(draft));
         } catch (WebsocketNotConnectedException e) {
@@ -1027,18 +1027,18 @@ private void doBroadcast(Object data, Collection<WebSocket> clients) {
    *
    * @param draft       The draft to use
    * @param draftFrames The list of frames per draft to fill
-   * @param sData       the string data, can be null
-   * @param bData       the byte buffer data, can be null
+   * @param strData       the string data, can be null
+   * @param byteData       the byte buffer data, can be null
    */
-  private void fillFrames(Draft draft, Map<Draft, List<Framedata>> draftFrames, String sData,
-      ByteBuffer bData) {
+  private void fillFrames(Draft draft, Map<Draft, List<Framedata>> draftFrames, String strData,
+      ByteBuffer byteData) {
     if (!draftFrames.containsKey(draft)) {
       List<Framedata> frames = null;
-      if (sData != null) {
-        frames = draft.createFrames(sData, false);
+      if (strData != null) {
+        frames = draft.createFrames(strData, false);
       }
-      if (bData != null) {
-        frames = draft.createFrames(bData, false);
+      if (byteData != null) {
+        frames = draft.createFrames(byteData, false);
       }
       if (frames != null) {
         draftFrames.put(draft, frames);

src/main/java/org/java_websocket/util/Base64.java

@@ -517,7 +517,7 @@ private static byte[] encode3to4(
       byte[] source, int srcOffset, int numSigBytes,
       byte[] destination, int destOffset, int options) {
 
-    byte[] ALPHABET = getAlphabet(options);
+    final byte[] ALPHABET = getAlphabet(options);
 
     //           1         2         3
     // 01234567890123456789012345678901 Bit position
@@ -691,18 +691,21 @@ public static byte[] encodeBytesToBytes(byte[] source, int off, int len, int opt
             gzos.close();
           }
         } catch (Exception e) {
+          // do nothing
         }
         try {
           if (b64os != null) {
             b64os.close();
           }
         } catch (Exception e) {
+          // do nothing
         }
         try {
           if (baos != null) {
             baos.close();
           }
         } catch (Exception e) {
+          // do nothing
         }
       }   // end finally
 
@@ -818,7 +821,7 @@ private static int decode4to3(
           destination.length, destOffset));
     }   // end if
 
-    byte[] DECODABET = getDecodabet(options);
+    final byte[] DECODABET = getDecodabet(options);
 
     // Example: Dk==
     if (source[srcOffset + 2] == EQUALS_SIGN) {