Enfore spaces for indentation

Although I'm in the tabs camp, Smack uses mostly spaces. Therefore it
is the logical choice for the indentation style.

config/checkstyle.xml

@@ -35,10 +35,6 @@
 		<property name="format" value="^\s+$"/>
 		<property name="message" value="Line containing only whitespace character(s)"/>
 	</module>
-	<module name="RegexpSingleline">
-		<property name="format" value="^ +\t+"/>
-		<property name="message" value="Line containing tab(s) after space"/>
-	</module>
 	<module name="RegexpSingleline">
 		<!-- We use {2,} instead of + here to address the typical case where a file was written
 		   with tabs but javadoc is causing '\t *' -->
@@ -89,6 +85,10 @@
 			<property name="message" value="Usage of println"/>
 			<property name="ignoreComments" value="true"/>
 		</module>
+		<module name="RegexpSinglelineJava">
+			<property name="format" value="^\t+"/>
+			<property name="message" value="Indent must not use tab characters. Use space instead."/>
+		</module>
 		<module name="JavadocMethod">
 			<!-- TODO stricten those checks -->
 			<property name="scope" value="public"/>

smack-android-extensions/src/main/java/org/jivesoftware/smackx/ping/android/ServerPingWithAlarmManager.java

@@ -1,6 +1,6 @@
 /**
  *
- * Copyright © 2014 Florian Schmaus
+ * Copyright © 2014-2017 Florian Schmaus
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -63,116 +63,116 @@ import android.os.SystemClock;
  */
 public final class ServerPingWithAlarmManager extends Manager {
 
-	private static final Logger LOGGER = Logger.getLogger(ServerPingWithAlarmManager.class
-			.getName());
+    private static final Logger LOGGER = Logger.getLogger(ServerPingWithAlarmManager.class
+            .getName());
 
-	private static final String PING_ALARM_ACTION = "org.igniterealtime.smackx.ping.ACTION";
+    private static final String PING_ALARM_ACTION = "org.igniterealtime.smackx.ping.ACTION";
 
-	private static final Map<XMPPConnection, ServerPingWithAlarmManager> INSTANCES = new WeakHashMap<XMPPConnection, ServerPingWithAlarmManager>();
+    private static final Map<XMPPConnection, ServerPingWithAlarmManager> INSTANCES = new WeakHashMap<XMPPConnection, ServerPingWithAlarmManager>();
 
-	static {
-		XMPPConnectionRegistry.addConnectionCreationListener(new ConnectionCreationListener() {
-			@Override
-			public void connectionCreated(XMPPConnection connection) {
-				getInstanceFor(connection);
-			}
-		});
-	}
+    static {
+        XMPPConnectionRegistry.addConnectionCreationListener(new ConnectionCreationListener() {
+            @Override
+            public void connectionCreated(XMPPConnection connection) {
+                getInstanceFor(connection);
+            }
+        });
+    }
 
-	public static synchronized ServerPingWithAlarmManager getInstanceFor(XMPPConnection connection) {
-		ServerPingWithAlarmManager serverPingWithAlarmManager = INSTANCES.get(connection);
-		if (serverPingWithAlarmManager == null) {
-			serverPingWithAlarmManager = new ServerPingWithAlarmManager(connection);
-			INSTANCES.put(connection, serverPingWithAlarmManager);
-		}
-		return serverPingWithAlarmManager;
-	}
+    public static synchronized ServerPingWithAlarmManager getInstanceFor(XMPPConnection connection) {
+        ServerPingWithAlarmManager serverPingWithAlarmManager = INSTANCES.get(connection);
+        if (serverPingWithAlarmManager == null) {
+            serverPingWithAlarmManager = new ServerPingWithAlarmManager(connection);
+            INSTANCES.put(connection, serverPingWithAlarmManager);
+        }
+        return serverPingWithAlarmManager;
+    }
 
-	private boolean mEnabled = true;
+    private boolean mEnabled = true;
 
-	private ServerPingWithAlarmManager(XMPPConnection connection) {
-		super(connection);
-	}
+    private ServerPingWithAlarmManager(XMPPConnection connection) {
+        super(connection);
+    }
 
     /**
      * If enabled, ServerPingWithAlarmManager will call {@link PingManager#pingServerIfNecessary()}
      * for the connection of this instance every half hour.
-     * 
+     *
      * @param enabled
      */
-	public void setEnabled(boolean enabled) {
-		mEnabled = enabled;
-	}
-
-	public boolean isEnabled() {
-		return mEnabled;
-	}
-
-	private static final BroadcastReceiver ALARM_BROADCAST_RECEIVER = new BroadcastReceiver() {
-		@Override
-		public void onReceive(Context context, Intent intent) {
-			LOGGER.fine("Ping Alarm broadcast received");
-			Set<Entry<XMPPConnection, ServerPingWithAlarmManager>> managers;
-			synchronized (ServerPingWithAlarmManager.class) {
-				// Make a copy to avoid ConcurrentModificationException when
-				// iterating directly over INSTANCES and the Set is modified
-				// concurrently by creating a new ServerPingWithAlarmManager.
-				managers = new HashSet<>(INSTANCES.entrySet());
-			}
-			for (Entry<XMPPConnection, ServerPingWithAlarmManager> entry : managers) {
-				XMPPConnection connection = entry.getKey();
-				if (entry.getValue().isEnabled()) {
-					LOGGER.fine("Calling pingServerIfNecessary for connection "
-							+ connection);
-					final PingManager pingManager = PingManager.getInstanceFor(connection);
-					// Android BroadcastReceivers have a timeout of 60 seconds.
-					// The connections reply timeout may be higher, which causes
-					// timeouts of the broadcast receiver and a subsequent ANR
-					// of the App of the broadcast receiver. We therefore need
-					// to call pingServerIfNecessary() in a new thread to avoid
-					// this. It could happen that the device gets back to sleep
-					// until the Thread runs, but that's a risk we are willing
-					// to take into account as it's unlikely.
-					Async.go(new Runnable() {
-						@Override
-						public void run() {
-							pingManager.pingServerIfNecessary();
-						}
-					}, "PingServerIfNecessary (" + connection.getConnectionCounter() + ')');
-				} else {
-					LOGGER.fine("NOT calling pingServerIfNecessary (disabled) on connection "
-							+ connection.getConnectionCounter());
-				}
-			}
-		}
-	};
-
-	private static Context sContext;
-	private static PendingIntent sPendingIntent;
-	private static AlarmManager sAlarmManager;
+    public void setEnabled(boolean enabled) {
+        mEnabled = enabled;
+    }
+
+    public boolean isEnabled() {
+        return mEnabled;
+    }
+
+    private static final BroadcastReceiver ALARM_BROADCAST_RECEIVER = new BroadcastReceiver() {
+        @Override
+        public void onReceive(Context context, Intent intent) {
+            LOGGER.fine("Ping Alarm broadcast received");
+            Set<Entry<XMPPConnection, ServerPingWithAlarmManager>> managers;
+            synchronized (ServerPingWithAlarmManager.class) {
+                // Make a copy to avoid ConcurrentModificationException when
+                // iterating directly over INSTANCES and the Set is modified
+                // concurrently by creating a new ServerPingWithAlarmManager.
+                managers = new HashSet<>(INSTANCES.entrySet());
+            }
+            for (Entry<XMPPConnection, ServerPingWithAlarmManager> entry : managers) {
+                XMPPConnection connection = entry.getKey();
+                if (entry.getValue().isEnabled()) {
+                    LOGGER.fine("Calling pingServerIfNecessary for connection "
+                            + connection);
+                    final PingManager pingManager = PingManager.getInstanceFor(connection);
+                    // Android BroadcastReceivers have a timeout of 60 seconds.
+                    // The connections reply timeout may be higher, which causes
+                    // timeouts of the broadcast receiver and a subsequent ANR
+                    // of the App of the broadcast receiver. We therefore need
+                    // to call pingServerIfNecessary() in a new thread to avoid
+                    // this. It could happen that the device gets back to sleep
+                    // until the Thread runs, but that's a risk we are willing
+                    // to take into account as it's unlikely.
+                    Async.go(new Runnable() {
+                        @Override
+                        public void run() {
+                            pingManager.pingServerIfNecessary();
+                        }
+                    }, "PingServerIfNecessary (" + connection.getConnectionCounter() + ')');
+                } else {
+                    LOGGER.fine("NOT calling pingServerIfNecessary (disabled) on connection "
+                            + connection.getConnectionCounter());
+                }
+            }
+        }
+    };
+
+    private static Context sContext;
+    private static PendingIntent sPendingIntent;
+    private static AlarmManager sAlarmManager;
 
     /**
      * Register a pending intent with the AlarmManager to be broadcasted every half hour and
      * register the alarm broadcast receiver to receive this intent. The receiver will check all
      * known questions if a ping is Necessary when invoked by the alarm intent.
-     * 
+     *
      * @param context
      */
-	public static void onCreate(Context context) {
-		sContext = context;
-		context.registerReceiver(ALARM_BROADCAST_RECEIVER, new IntentFilter(PING_ALARM_ACTION));
-		sAlarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
-		sPendingIntent = PendingIntent.getBroadcast(context, 0, new Intent(PING_ALARM_ACTION), 0);
-		sAlarmManager.setInexactRepeating(AlarmManager.ELAPSED_REALTIME_WAKEUP,
-				SystemClock.elapsedRealtime() + AlarmManager.INTERVAL_HALF_HOUR,
-				AlarmManager.INTERVAL_HALF_HOUR, sPendingIntent);
-	}
+    public static void onCreate(Context context) {
+        sContext = context;
+        context.registerReceiver(ALARM_BROADCAST_RECEIVER, new IntentFilter(PING_ALARM_ACTION));
+        sAlarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
+        sPendingIntent = PendingIntent.getBroadcast(context, 0, new Intent(PING_ALARM_ACTION), 0);
+        sAlarmManager.setInexactRepeating(AlarmManager.ELAPSED_REALTIME_WAKEUP,
+                SystemClock.elapsedRealtime() + AlarmManager.INTERVAL_HALF_HOUR,
+                AlarmManager.INTERVAL_HALF_HOUR, sPendingIntent);
+    }
 
     /**
      * Unregister the alarm broadcast receiver and cancel the alarm.
      */
-	public static void onDestroy() {
-		sContext.unregisterReceiver(ALARM_BROADCAST_RECEIVER);
-		sAlarmManager.cancel(sPendingIntent);
-	}
+    public static void onDestroy() {
+        sContext.unregisterReceiver(ALARM_BROADCAST_RECEIVER);
+        sAlarmManager.cancel(sPendingIntent);
+    }
 }

smack-android/src/main/java/org/jivesoftware/smack/android/AndroidSmackInitializer.java

@@ -1,6 +1,6 @@
 /**
  *
- * Copyright © 2014 Florian Schmaus
+ * Copyright © 2014-2017 Florian Schmaus
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -28,12 +28,12 @@ import org.jivesoftware.smack.util.stringencoder.android.AndroidBase64UrlSafeEnc
 
 public class AndroidSmackInitializer implements SmackInitializer {
 
-	@Override
-	public List<Exception> initialize() {
-		SmackConfiguration.setDefaultHostnameVerifier(new StrictHostnameVerifier());
-		Base64.setEncoder(AndroidBase64Encoder.getInstance());
-		Base64UrlSafeEncoder.setEncoder(AndroidBase64UrlSafeEncoder.getInstance());
-		return null;
-	}
+    @Override
+    public List<Exception> initialize() {
+        SmackConfiguration.setDefaultHostnameVerifier(new StrictHostnameVerifier());
+        Base64.setEncoder(AndroidBase64Encoder.getInstance());
+        Base64UrlSafeEncoder.setEncoder(AndroidBase64UrlSafeEncoder.getInstance());
+        return null;
+    }
 
 }

smack-core/src/main/java/org/jivesoftware/smack/filter/IQTypeFilter.java

@@ -35,12 +35,12 @@ public final class IQTypeFilter extends FlexibleStanzaTypeFilter<IQ> {
     public static final StanzaFilter ERROR = new IQTypeFilter(Type.error);
     public static final StanzaFilter GET_OR_SET = new OrFilter(GET, SET);
 
-	private final IQ.Type type;
+    private final IQ.Type type;
 
-	private IQTypeFilter(IQ.Type type) {
+    private IQTypeFilter(IQ.Type type) {
         super(IQ.class);
-		this.type = Objects.requireNonNull(type, "Type must not be null");
-	}
+        this.type = Objects.requireNonNull(type, "Type must not be null");
+    }
 
     @Override
     protected boolean acceptSpecific(IQ iq) {

smack-core/src/test/java/org/jivesoftware/smack/StanzaCollectorTest.java

@@ -26,190 +26,190 @@ import org.junit.Test;
 public class StanzaCollectorTest
 {
 
-	@Test
-	public void verifyRollover() throws InterruptedException
-	{
-		TestStanzaCollector collector = new TestStanzaCollector(null, new OKEverything(), 5);
-
-		for (int i=0; i<6; i++)
-		{
-			Stanza testPacket = new TestPacket(i);
-			collector.processStanza(testPacket);
-		}
-
-		// Assert that '0' has rolled off
-		assertEquals("1", collector.nextResultBlockForever().getStanzaId());
-		assertEquals("2", collector.nextResultBlockForever().getStanzaId());
-		assertEquals("3", collector.nextResultBlockForever().getStanzaId());
-		assertEquals("4", collector.nextResultBlockForever().getStanzaId());
-		assertEquals("5", collector.pollResult().getStanzaId());
-		assertNull(collector.pollResult());
-
-		for (int i=10; i<15; i++)
-		{
-			Stanza testPacket = new TestPacket(i);
-			collector.processStanza(testPacket);
-		}
-
-		assertEquals("10", collector.nextResultBlockForever().getStanzaId());
-		assertEquals("11", collector.nextResultBlockForever().getStanzaId());
-		assertEquals("12", collector.nextResultBlockForever().getStanzaId());
-		assertEquals("13", collector.nextResultBlockForever().getStanzaId());
-		assertEquals("14", collector.pollResult().getStanzaId());
-		assertNull(collector.pollResult());
-
-		assertNull(collector.nextResult(1000));
-	}
+    @Test
+    public void verifyRollover() throws InterruptedException
+    {
+        TestStanzaCollector collector = new TestStanzaCollector(null, new OKEverything(), 5);
+
+        for (int i=0; i<6; i++)
+        {
+            Stanza testPacket = new TestPacket(i);
+            collector.processStanza(testPacket);
+        }
+
+        // Assert that '0' has rolled off
+        assertEquals("1", collector.nextResultBlockForever().getStanzaId());
+        assertEquals("2", collector.nextResultBlockForever().getStanzaId());
+        assertEquals("3", collector.nextResultBlockForever().getStanzaId());
+        assertEquals("4", collector.nextResultBlockForever().getStanzaId());
+        assertEquals("5", collector.pollResult().getStanzaId());
+        assertNull(collector.pollResult());
+
+        for (int i=10; i<15; i++)
+        {
+            Stanza testPacket = new TestPacket(i);
+            collector.processStanza(testPacket);
+        }
+
+        assertEquals("10", collector.nextResultBlockForever().getStanzaId());
+        assertEquals("11", collector.nextResultBlockForever().getStanzaId());
+        assertEquals("12", collector.nextResultBlockForever().getStanzaId());
+        assertEquals("13", collector.nextResultBlockForever().getStanzaId());
+        assertEquals("14", collector.pollResult().getStanzaId());
+        assertNull(collector.pollResult());
+
+        assertNull(collector.nextResult(1000));
+    }
 
     /**
      * Although this doesn't guarentee anything due to the nature of threading, it can potentially
      * catch problems.
      */
-	@Test
-	public void verifyThreadSafety()
-	{
-		int insertCount = 500;
-		final TestStanzaCollector collector = new TestStanzaCollector(null, new OKEverything(), insertCount);
-
-		Thread consumer1 = new Thread(new Runnable()
-		{
-			@Override
-			public void run()
-			{
-				try
-				{
-					while (true)
-					{
-						try
-						{
-							Thread.sleep(3);
-						}
-						catch (InterruptedException e)
-						{
-						}
-						@SuppressWarnings("unused")
-						Stanza packet = collector.nextResultBlockForever();
-//						System.out.println(Thread.currentThread().getName() + "  packet: " + packet);
-					}
-				}
+    @Test
+    public void verifyThreadSafety()
+    {
+        int insertCount = 500;
+        final TestStanzaCollector collector = new TestStanzaCollector(null, new OKEverything(), insertCount);
+
+        Thread consumer1 = new Thread(new Runnable()
+        {
+            @Override
+            public void run()
+            {
+                try
+                {
+                    while (true)
+                    {
+                        try
+                        {
+                            Thread.sleep(3);
+                        }
+                        catch (InterruptedException e)
+                        {
+                        }
+                        @SuppressWarnings("unused")
+                        Stanza packet = collector.nextResultBlockForever();
+//                      System.out.println(Thread.currentThread().getName() + "  packet: " + packet);
+                    }
+                }
                 catch (InterruptedException e) {
                     throw new RuntimeException(e);
                 }
-			}
-		});
-		consumer1.setName("consumer 1");
-
-		Thread consumer2 = new Thread(new Runnable()
-		{
-			@Override
-			public void run()
-			{
-				Stanza p = null;
-
-				do
-				{
-					try
-					{
-						Thread.sleep(3);
-					}
-					catch (InterruptedException e)
-					{
-					}
-					try {
+            }
+        });
+        consumer1.setName("consumer 1");
+
+        Thread consumer2 = new Thread(new Runnable()
+        {
+            @Override
+            public void run()
+            {
+                Stanza p = null;
+
+                do
+                {
+                    try
+                    {
+                        Thread.sleep(3);
+                    }
+                    catch (InterruptedException e)
+                    {
+                    }
+                    try {
                         p = collector.nextResult(1);
                     }
                     catch (InterruptedException e) {
                         throw new RuntimeException(e);
                     }
-//					System.out.println(Thread.currentThread().getName() + "  packet: " + p);
-				}
-				while (p != null);
-			}
-		});
-		consumer2.setName("consumer 2");
-
-		Thread consumer3 = new Thread(new Runnable()
-		{
-			@Override
-			public void run()
-			{
-				Stanza p = null;
-
-				do
-				{
-					try
-					{
-						Thread.sleep(3);
-					}
-					catch (InterruptedException e)
-					{
-					}
-					p = collector.pollResult();
-//					System.out.println(Thread.currentThread().getName() + "  packet: " + p);
-				}
-				while (p != null);
-			}
-		});
-		consumer3.setName("consumer 3");
-
-		consumer1.start();
-		consumer2.start();
-		consumer3.start();
-
-		for(int i=0; i<insertCount; i++)
-		{
-			collector.processStanza(new TestPacket(i));
-		}
-
-		try
-		{
-			Thread.sleep(5000);
-			consumer3.join();
-			consumer2.join();
-			consumer1.interrupt();
-		}
-		catch (InterruptedException e)
-		{
-		}
-		//We cannot guarantee that this is going to pass due to the possible issue of timing between consumer 1 
-		// and main, but the probability is extremely remote.
-		assertNull(collector.pollResult());
-	}
-
-	class OKEverything implements StanzaFilter
-	{
-		@Override
-		public boolean accept(Stanza packet)
-		{
-			return true;
-		}
-
-	}
-
-	class TestStanzaCollector extends StanzaCollector 
-	{
-		protected TestStanzaCollector(XMPPConnection conection, StanzaFilter packetFilter, int size)
-		{
-			super(conection, StanzaCollector.newConfiguration().setStanzaFilter(packetFilter).setSize(size));
-		}
-	}
-
-	class TestPacket extends Stanza
-	{
-		public TestPacket(int i)
-		{
-			setStanzaId(String.valueOf(i));
-		}
-
-		@Override
-		public String toXML()
-		{
-			return "<packetId>" + getStanzaId() + "</packetId>";
-		}
+//                  System.out.println(Thread.currentThread().getName() + "  packet: " + p);
+                }
+                while (p != null);
+            }
+        });
+        consumer2.setName("consumer 2");
+
+        Thread consumer3 = new Thread(new Runnable()
+        {
+            @Override
+            public void run()
+            {
+                Stanza p = null;
+
+                do
+                {
+                    try
+                    {
+                        Thread.sleep(3);
+                    }
+                    catch (InterruptedException e)
+                    {
+                    }
+                    p = collector.pollResult();
+//                  System.out.println(Thread.currentThread().getName() + "  packet: " + p);
+                }
+                while (p != null);
+            }
+        });
+        consumer3.setName("consumer 3");
+
+        consumer1.start();
+        consumer2.start();
+        consumer3.start();
+
+        for(int i=0; i<insertCount; i++)
+        {
+            collector.processStanza(new TestPacket(i));
+        }
+
+        try
+        {
+            Thread.sleep(5000);
+            consumer3.join();
+            consumer2.join();
+            consumer1.interrupt();
+        }
+        catch (InterruptedException e)
+        {
+        }
+        //We cannot guarantee that this is going to pass due to the possible issue of timing between consumer 1 
+        // and main, but the probability is extremely remote.
+        assertNull(collector.pollResult());
+    }
+
+    class OKEverything implements StanzaFilter
+    {
+        @Override
+        public boolean accept(Stanza packet)
+        {
+            return true;
+        }
+
+    }
+
+    class TestStanzaCollector extends StanzaCollector 
+    {
+        protected TestStanzaCollector(XMPPConnection conection, StanzaFilter packetFilter, int size)
+        {
+            super(conection, StanzaCollector.newConfiguration().setStanzaFilter(packetFilter).setSize(size));
+        }
+    }
+
+    class TestPacket extends Stanza
+    {
+        public TestPacket(int i)
+        {
+            setStanzaId(String.valueOf(i));
+        }
+
+        @Override
+        public String toXML()
+        {
+            return "<packetId>" + getStanzaId() + "</packetId>";
+        }
 
         @Override
         public String toString() {
             return toXML();
         }
-	}
+    }
 }

smack-core/src/test/java/org/jivesoftware/smack/util/SHA1Test.java

@@ -28,7 +28,7 @@ import org.junit.Test;
  */
 public class SHA1Test  {
 
-	@Test
+    @Test
     public void testHash() {
         // Test null
         // @TODO - should the StringUtils.hash(String) method be fixed to handle null input?

smack-core/src/test/java/org/jivesoftware/smack/util/StringUtilsTest.java

@@ -27,7 +27,7 @@ import org.junit.Test;
  * A test case for the StringUtils class.
  */
 public class StringUtilsTest  {
-	@Test
+    @Test
     public void testEscapeForXml() {
         String input = null;
 
@@ -67,11 +67,11 @@ public class StringUtilsTest  {
         assertCharSequenceEquals("It's a good day today", StringUtils.escapeForXml(input));
     }
 
-	public static void assertCharSequenceEquals(CharSequence expected, CharSequence actual) {
+    public static void assertCharSequenceEquals(CharSequence expected, CharSequence actual) {
         assertEquals(expected.toString(), actual.toString());
-	}
+    }
 
-	@Test
+    @Test
     public void testEncodeHex() {
         String input = "";
         String output = "";
@@ -84,7 +84,7 @@ public class StringUtilsTest  {
                 new String(output.getBytes()));
     }
 
-	@Test
+    @Test
     public void testRandomString() {
         // Boundary test
         String result = StringUtils.randomString(-1);

smack-debug/src/main/java/org/jivesoftware/smackx/debugger/EnhancedDebuggerWindow.java

@@ -203,7 +203,7 @@ public final class EnhancedDebuggerWindow {
      * a tab panel for each connection that is being debugged.
      */
     @SuppressWarnings({ "rawtypes", "unchecked" })
-	private void createDebug() {
+    private void createDebug() {
 
         frame = new JFrame("Smack Debug Window");
 

smack-extensions/src/main/java/org/jivesoftware/smackx/blocking/AllJidsUnblockedListener.java

@@ -18,6 +18,6 @@ package org.jivesoftware.smackx.blocking;
 
 public interface AllJidsUnblockedListener {
 
-	void onAllJidsUnblocked();
+    void onAllJidsUnblocked();
 
 }

smack-extensions/src/main/java/org/jivesoftware/smackx/blocking/JidsBlockedListener.java

@@ -22,6 +22,6 @@ import org.jxmpp.jid.Jid;
 
 public interface JidsBlockedListener {
 
-	void onJidsBlocked(List<Jid> blockedJids);
+    void onJidsBlocked(List<Jid> blockedJids);
 
 }

smack-extensions/src/main/java/org/jivesoftware/smackx/filetransfer/FileTransfer.java

@@ -31,27 +31,27 @@ import org.jxmpp.jid.Jid;
  */
 public abstract class FileTransfer {
 
-	private String fileName;
+    private String fileName;
 
-	private String filePath;
+    private String filePath;
 
-	private long fileSize;
+    private long fileSize;
 
-	private Jid peer;
+    private Jid peer;
 
-	private Status status = Status.initial;
+    private Status status = Status.initial;
 
     private final Object statusMonitor = new Object();
 
-	protected FileTransferNegotiator negotiator;
+    protected FileTransferNegotiator negotiator;
 
-	protected String streamID;
+    protected String streamID;
 
-	protected long amountWritten = -1;
+    protected long amountWritten = -1;
 
-	private Error error;
+    private Error error;
 
-	private Exception exception;
+    private Exception exception;
 
     /**
      * Buffer size between input and output
@@ -59,137 +59,137 @@ public abstract class FileTransfer {
     private static final int BUFFER_SIZE = 8192;
 
     protected FileTransfer(Jid peer, String streamID,
-			FileTransferNegotiator negotiator) {
-		this.peer = peer;
-		this.streamID = streamID;
-		this.negotiator = negotiator;
-	}
-
-	protected void setFileInfo(String fileName, long fileSize) {
-		this.fileName = fileName;
-		this.fileSize = fileSize;
-	}
-
-	protected void setFileInfo(String path, String fileName, long fileSize) {
-		this.filePath = path;
-		this.fileName = fileName;
-		this.fileSize = fileSize;
-	}
-
-	/**
-	 * Returns the size of the file being transfered.
-	 *
-	 * @return Returns the size of the file being transfered.
-	 */
-	public long getFileSize() {
-		return fileSize;
-	}
-
-	/**
-	 * Returns the name of the file being transfered.
-	 *
-	 * @return Returns the name of the file being transfered.
-	 */
-	public String getFileName() {
-		return fileName;
-	}
-
-	/**
-	 * Returns the local path of the file.
-	 *
-	 * @return Returns the local path of the file.
-	 */
-	public String getFilePath() {
-		return filePath;
-	}
-
-	/**
-	 * Returns the JID of the peer for this file transfer.
-	 *
-	 * @return Returns the JID of the peer for this file transfer.
-	 */
-	public Jid getPeer() {
-		return peer;
-	}
-
-	/**
-	 * Returns the progress of the file transfer as a number between 0 and 1.
-	 *
-	 * @return Returns the progress of the file transfer as a number between 0
-	 *         and 1.
-	 */
-	public double getProgress() {
+            FileTransferNegotiator negotiator) {
+        this.peer = peer;
+        this.streamID = streamID;
+        this.negotiator = negotiator;
+    }
+
+    protected void setFileInfo(String fileName, long fileSize) {
+        this.fileName = fileName;
+        this.fileSize = fileSize;
+    }
+
+    protected void setFileInfo(String path, String fileName, long fileSize) {
+        this.filePath = path;
+        this.fileName = fileName;
+        this.fileSize = fileSize;
+    }
+
+    /**
+     * Returns the size of the file being transfered.
+     *
+     * @return Returns the size of the file being transfered.
+     */
+    public long getFileSize() {
+        return fileSize;
+    }
+
+    /**
+     * Returns the name of the file being transfered.
+     *
+     * @return Returns the name of the file being transfered.
+     */
+    public String getFileName() {
+        return fileName;
+    }
+
+    /**
+     * Returns the local path of the file.
+     *
+     * @return Returns the local path of the file.
+     */
+    public String getFilePath() {
+        return filePath;
+    }
+
+    /**
+     * Returns the JID of the peer for this file transfer.
+     *
+     * @return Returns the JID of the peer for this file transfer.
+     */
+    public Jid getPeer() {
+        return peer;
+    }
+
+    /**
+     * Returns the progress of the file transfer as a number between 0 and 1.
+     *
+     * @return Returns the progress of the file transfer as a number between 0
+     *         and 1.
+     */
+    public double getProgress() {
         if (amountWritten <= 0 || fileSize <= 0) {
             return 0;
         }
         return (double) amountWritten / (double) fileSize;
-	}
-
-	/**
-	 * Returns true if the transfer has been cancelled, if it has stopped because
-	 * of a an error, or the transfer completed successfully.
-	 *
-	 * @return Returns true if the transfer has been cancelled, if it has stopped
-	 *         because of a an error, or the transfer completed successfully.
-	 */
-	public boolean isDone() {
-		return status == Status.cancelled || status == Status.error
-				|| status == Status.complete || status == Status.refused;
-	}
-
-	/**
-	 * Returns the current status of the file transfer.
-	 *
-	 * @return Returns the current status of the file transfer.
-	 */
-	public Status getStatus() {
-		return status;
-	}
-
-	protected void setError(Error type) {
-		this.error = type;
-	}
-
-	/**
-	 * When {@link #getStatus()} returns that there was an {@link Status#error}
-	 * during the transfer, the type of error can be retrieved through this
-	 * method.
-	 *
-	 * @return Returns the type of error that occurred if one has occurred.
-	 */
-	public Error getError() {
-		return error;
-	}
-
-	/**
-	 * If an exception occurs asynchronously it will be stored for later
-	 * retrieval. If there is an error there maybe an exception set.
-	 *
-	 * @return The exception that occurred or null if there was no exception.
-	 * @see #getError()
-	 */
-	public Exception getException() {
-		return exception;
-	}
+    }
+
+    /**
+     * Returns true if the transfer has been cancelled, if it has stopped because
+     * of a an error, or the transfer completed successfully.
+     *
+     * @return Returns true if the transfer has been cancelled, if it has stopped
+     *         because of a an error, or the transfer completed successfully.
+     */
+    public boolean isDone() {
+        return status == Status.cancelled || status == Status.error
+                || status == Status.complete || status == Status.refused;
+    }
+
+    /**
+     * Returns the current status of the file transfer.
+     *
+     * @return Returns the current status of the file transfer.
+     */
+    public Status getStatus() {
+        return status;
+    }
+
+    protected void setError(Error type) {
+        this.error = type;
+    }
+
+    /**
+     * When {@link #getStatus()} returns that there was an {@link Status#error}
+     * during the transfer, the type of error can be retrieved through this
+     * method.
+     *
+     * @return Returns the type of error that occurred if one has occurred.
+     */
+    public Error getError() {
+        return error;
+    }
+
+    /**
+     * If an exception occurs asynchronously it will be stored for later
+     * retrieval. If there is an error there maybe an exception set.
+     *
+     * @return The exception that occurred or null if there was no exception.
+     * @see #getError()
+     */
+    public Exception getException() {
+        return exception;
+    }
 
     public String getStreamID() {
         return streamID;
     }
 
-	/**
-	 * Cancels the file transfer.
-	 */
-	public abstract void cancel();
+    /**
+     * Cancels the file transfer.
+     */
+    public abstract void cancel();
 
-	protected void setException(Exception exception) {
-		this.exception = exception;
-	}
+    protected void setException(Exception exception) {
+        this.exception = exception;
+    }
 
-	protected void setStatus(Status status) {
+    protected void setStatus(Status status) {
         synchronized (statusMonitor) {
          // CHECKSTYLE:OFF
-		    this.status = status;
-	    }
+            this.status = status;
+        }
         // CHECKSTYLE:ON
     }
 
@@ -206,91 +206,91 @@ public abstract class FileTransfer {
     protected void writeToStream(final InputStream in, final OutputStream out)
                     throws IOException
     {
-		final byte[] b = new byte[BUFFER_SIZE];
-		int count = 0;
-		amountWritten = 0;
+        final byte[] b = new byte[BUFFER_SIZE];
+        int count = 0;
+        amountWritten = 0;
 
         while ((count = in.read(b)) > 0 && !getStatus().equals(Status.cancelled)) {
             out.write(b, 0, count);
             amountWritten += count;
         }
 
-		// the connection was likely terminated abruptly if these are not equal
-		if (!getStatus().equals(Status.cancelled) && getError() == Error.none
-				&& amountWritten != fileSize) {
+        // the connection was likely terminated abruptly if these are not equal
+        if (!getStatus().equals(Status.cancelled) && getError() == Error.none
+                && amountWritten != fileSize) {
             setStatus(Status.error);
-			this.error = Error.connection;
-		}
-	}
-
-	/**
-	 * A class to represent the current status of the file transfer.
-	 *
-	 * @author Alexander Wenckus
-	 *
-	 */
-	public enum Status {
-
-		/**
-		 * An error occurred during the transfer.
-		 *
-		 * @see FileTransfer#getError()
-		 */
-		error("Error"),
-
-		/**
+            this.error = Error.connection;
+        }
+    }
+
+    /**
+     * A class to represent the current status of the file transfer.
+     *
+     * @author Alexander Wenckus
+     *
+     */
+    public enum Status {
+
+        /**
+         * An error occurred during the transfer.
+         *
+         * @see FileTransfer#getError()
+         */
+        error("Error"),
+
+        /**
          * The initial status of the file transfer.
          */
         initial("Initial"),
 
         /**
-		 * The file transfer is being negotiated with the peer. The party
-		 * Receiving the file has the option to accept or refuse a file transfer
-		 * request. If they accept, then the process of stream negotiation will
-		 * begin. If they refuse the file will not be transfered.
-		 *
-		 * @see #negotiating_stream
-		 */
-		negotiating_transfer("Negotiating Transfer"),
-
-		/**
-		 * The peer has refused the file transfer request halting the file
-		 * transfer negotiation process.
-		 */
-		refused("Refused"),
-
-		/**
-		 * The stream to transfer the file is being negotiated over the chosen
-		 * stream type. After the stream negotiating process is complete the
-		 * status becomes negotiated.
-		 *
-		 * @see #negotiated
-		 */
-		negotiating_stream("Negotiating Stream"),
-
-		/**
-		 * After the stream negotiation has completed the intermediate state
-		 * between the time when the negotiation is finished and the actual
-		 * transfer begins.
-		 */
-		negotiated("Negotiated"),
-
-		/**
-		 * The transfer is in progress.
-		 *
-		 * @see FileTransfer#getProgress()
-		 */
-		in_progress("In Progress"),
-
-		/**
-		 * The transfer has completed successfully.
-		 */
-		complete("Complete"),
-
-		/**
-		 * The file transfer was cancelled.
-		 */
-		cancelled("Cancelled");
+         * The file transfer is being negotiated with the peer. The party
+         * Receiving the file has the option to accept or refuse a file transfer
+         * request. If they accept, then the process of stream negotiation will
+         * begin. If they refuse the file will not be transfered.
+         *
+         * @see #negotiating_stream
+         */
+        negotiating_transfer("Negotiating Transfer"),
+
+        /**
+         * The peer has refused the file transfer request halting the file
+         * transfer negotiation process.
+         */
+        refused("Refused"),
+
+        /**
+         * The stream to transfer the file is being negotiated over the chosen
+         * stream type. After the stream negotiating process is complete the
+         * status becomes negotiated.
+         *
+         * @see #negotiated
+         */
+        negotiating_stream("Negotiating Stream"),
+
+        /**
+         * After the stream negotiation has completed the intermediate state
+         * between the time when the negotiation is finished and the actual
+         * transfer begins.
+         */
+        negotiated("Negotiated"),
+
+        /**
+         * The transfer is in progress.
+         *
+         * @see FileTransfer#getProgress()
+         */
+        in_progress("In Progress"),
+
+        /**
+         * The transfer has completed successfully.
+         */
+        complete("Complete"),
+
+        /**
+         * The file transfer was cancelled.
+         */
+        cancelled("Cancelled");
 
         private String status;
 
@@ -312,55 +312,55 @@ public abstract class FileTransfer {
     }
 
     public enum Error {
-		/**
-		 * No error.
-		 */
-		none("No error"),
-
-		/**
-		 * The peer did not find any of the provided stream mechanisms
-		 * acceptable.
-		 */
-		not_acceptable("The peer did not find any of the provided stream mechanisms acceptable."),
-
-		/**
-		 * The provided file to transfer does not exist or could not be read.
-		 */
-		bad_file("The provided file to transfer does not exist or could not be read."),
-
-		/**
-		 * The remote user did not respond or the connection timed out.
-		 */
-		no_response("The remote user did not respond or the connection timed out."),
-
-		/**
-		 * An error occurred over the socket connected to send the file.
-		 */
-		connection("An error occured over the socket connected to send the file."),
-
-		/**
-		 * An error occurred while sending or receiving the file.
-		 */
-		stream("An error occured while sending or recieving the file.");
-
-		private final String msg;
-
-		private Error(String msg) {
-			this.msg = msg;
-		}
-
-		/**
-		 * Returns a String representation of this error.
-		 *
-		 * @return Returns a String representation of this error.
-		 */
-		public String getMessage() {
-			return msg;
-		}
-
-		public String toString() {
-			return msg;
-		}
-	}
+        /**
+         * No error.
+         */
+        none("No error"),
+
+        /**
+         * The peer did not find any of the provided stream mechanisms
+         * acceptable.
+         */
+        not_acceptable("The peer did not find any of the provided stream mechanisms acceptable."),
+
+        /**
+         * The provided file to transfer does not exist or could not be read.
+         */
+        bad_file("The provided file to transfer does not exist or could not be read."),
+
+        /**
+         * The remote user did not respond or the connection timed out.
+         */
+        no_response("The remote user did not respond or the connection timed out."),
+
+        /**
+         * An error occurred over the socket connected to send the file.
+         */
+        connection("An error occured over the socket connected to send the file."),
+
+        /**
+         * An error occurred while sending or receiving the file.
+         */
+        stream("An error occured while sending or recieving the file.");
+
+        private final String msg;
+