File transfer progress was not being rounded correctly. SMACK-127

git-svn-id: http://svn.igniterealtime.org/svn/repos/smack/trunk@3598 b35dd754-fafc-0310-a699-88a17e54d16e

source/org/jivesoftware/smackx/filetransfer/FileTransfer.java

@@ -44,6 +44,8 @@ public abstract class FileTransfer {
 
 	private org.jivesoftware.smackx.filetransfer.FileTransfer.Status status;
 
+    private final Object statusMonitor = new Object();
+
 	protected FileTransferNegotiator negotiator;
 
 	protected String streamID;
@@ -115,10 +117,10 @@ public abstract class FileTransfer {
 	 *         and 1.
 	 */
 	public double getProgress() {
-        if(amountWritten == 0) {
+        if (amountWritten <= 0 || fileSize <= 0) {
             return 0;
         }
-        return amountWritten / fileSize;
+        return (double) amountWritten / (double) fileSize;
 	}
 
 	/**
@@ -178,13 +180,25 @@ public abstract class FileTransfer {
 	}
 
 	protected final void setStatus(Status status) {
+        synchronized (statusMonitor) {
 		    this.status = status;
 	    }
+    }
+
+    protected final boolean updateStatus(Status oldStatus, Status newStatus) {
+        synchronized (statusMonitor) {
+            if (oldStatus != status) {
+                return false;
+            }
+            status = newStatus;
+            return true;
+        }
+    }
 
 	protected void writeToStream(final InputStream in, final OutputStream out)
 			throws XMPPException {
 		final byte[] b = new byte[1000];
-		int count = 0;
+		int count;
 		amountWritten = 0;
 		try {
 			count = in.read(b);
@@ -217,6 +231,7 @@ public abstract class FileTransfer {
 		// equal
 		if (!getStatus().equals(Status.CANCLED) && getError() == Error.NONE
 				&& amountWritten != fileSize) {
+            setStatus(Status.ERROR);
 			this.error = Error.CONNECTION;
 		}
 	}
@@ -228,6 +243,7 @@ public abstract class FileTransfer {
 	 *
 	 */
 	public static class Status {
+
 		/**
 		 * An error occured during the transfer.
 		 *
@@ -235,6 +251,11 @@ public abstract class FileTransfer {
 		 */
 		public static final Status ERROR = new Status();
 
+		/**
+         * The initial status of the file transfer.
+         */
+        public static final Status INITIAL = new Status();
+
         /**
 		 * The file transfer is being negotiated with the peer. The party
 		 * recieving the file has the option to accept or refuse a file transfer

source/org/jivesoftware/smackx/filetransfer/FileTransferNegotiator.java

@@ -149,7 +149,7 @@ public class FileTransferNegotiator {
      * @param type The iq type of the packet.
      * @return The created IQ packet.
      */
-    protected static IQ createIQ(final String ID, final String to,
+    public static IQ createIQ(final String ID, final String to,
             final String from, final IQ.Type type) {
         IQ iqPacket = new IQ() {
             public String getChildElementXML() {

source/org/jivesoftware/smackx/filetransfer/OutgoingFileTransfer.java

@@ -19,16 +19,11 @@
  */
 package org.jivesoftware.smackx.filetransfer;
 
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileNotFoundException;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-
 import org.jivesoftware.smack.XMPPException;
 import org.jivesoftware.smack.packet.XMPPError;
 
+import java.io.*;
+
 /**
  * Handles the sending of a file to another user. File transfer's in jabber have
  * several steps and there are several methods in this class that handle these
@@ -219,10 +214,9 @@ public class OutgoingFileTransfer extends FileTransfer {
 					return;
 				}
 
-				if (!getStatus().equals(Status.NEGOTIATED)) {
+                if (!updateStatus(Status.NEGOTIATED, Status.IN_PROGRESS)) {
 					return;
 				}
-				setStatus(Status.IN_PROGRESS);
 
 				InputStream inputStream = null;
 				try {
@@ -244,11 +238,10 @@ public class OutgoingFileTransfer extends FileTransfer {
 						outputStream.flush();
 						outputStream.close();
 					} catch (IOException e) {
+                        /* Do Nothing */
 					}
 				}
-				if (getStatus().equals(Status.IN_PROGRESS)) {
-					setStatus(FileTransfer.Status.COMPLETE);
-				}
+                updateStatus(Status.IN_PROGRESS, FileTransfer.Status.COMPLETE);
 				}
 
 		}, "File Transfer " + streamID);
@@ -291,7 +284,9 @@ public class OutgoingFileTransfer extends FileTransfer {
 			String description) throws XMPPException {
 		// Negotiate the file transfer profile
 
-		setStatus(Status.NEGOTIATING_TRANSFER);
+        if (!updateStatus(Status.INITIAL, Status.NEGOTIATING_TRANSFER)) {
+            throw new XMPPException("Illegal state change");
+        }
 		StreamNegotiator streamNegotiator = negotiator.negotiateOutgoingTransfer(
 				getPeer(), streamID, fileName, fileSize, description,
 				RESPONSE_TIMEOUT);
@@ -302,19 +297,16 @@ public class OutgoingFileTransfer extends FileTransfer {
 			return null;
 		}
 
-		if (!getStatus().equals(Status.NEGOTIATING_TRANSFER)) {
-			return null;
-		}
-
         // Negotiate the stream
-
-		setStatus(Status.NEGOTIATING_STREAM);
+        if (!updateStatus(Status.NEGOTIATING_TRANSFER, Status.NEGOTIATING_STREAM)) {
+            throw new XMPPException("Illegal state change");
+        }
 		outputStream = streamNegotiator.createOutgoingStream(streamID,
                 initiator, getPeer());
-		if (!getStatus().equals(Status.NEGOTIATING_STREAM)) {
-			return null;
+
+        if (!updateStatus(Status.NEGOTIATING_STREAM, Status.NEGOTIATED)) {
+            throw new XMPPException("Illegal state change");
 		}
-		setStatus(Status.NEGOTIATED);
 		return outputStream;
 	}
 

source/org/jivesoftware/smackx/packet/Bytestream.java

@@ -244,6 +244,12 @@ public class Bytestream extends IQ {
             buf.append(">");
             if (getUsedHost() != null)
                 buf.append(getUsedHost().toXML());
+            // A result from the server can also contain stream hosts
+            else if (countStreamHosts() > 0) {
+                for (Iterator it = getStreamHosts().iterator(); it.hasNext();) {
+                    buf.append(((StreamHost) it.next()).toXML());
+                }
+            }
         }
         else {
             return null;