Working on the JMF implementation of the media service.

Added class for media specific exceptions.

src/net/java/sip/communicator/service/media/MediaException.java

@@ -0,0 +1,86 @@
+/*
+ * SIP Communicator, the OpenSource Java VoIP and Instant Messaging client.
+ *
+ * Distributable under LGPL license.
+ * See terms of license at gnu.org.
+ */
+package net.java.sip.communicator.service.media;
+
+/**
+ * Thrown when errors occur in the media package.
+ *
+ * @author Emil Ivov
+ */
+public class MediaException
+    extends Exception
+{
+    /**
+     * Set when no other error code can describe the exception that occurred.
+     */
+    public static final int GENERAL_ERROR = 1;
+
+    /**
+     * Set when command fails due to a failure in network communications or
+     * a transport error.
+     */
+    public static final int NETWORK_ERROR = 2;
+
+    /**
+     * Set to indicate that the service implementation needs to be started
+     * (initialized) before calling the method that threw the exception.
+     */
+    public static final int SERVICE_NOT_STARTED = 3;
+
+    /**
+     * Set when an operation fails for implementation specific reasons.
+     */
+    public static final int INTERNAL_ERROR = 4;
+
+    /**
+     * Set when an operation fails because of an input/output error.
+     */
+    public static final int IO_ERROR = 4;
+
+    /**
+     * The error code of the exception
+     */
+    private int errorCode = GENERAL_ERROR;
+
+
+    /**
+     * Creates an exception with the specified error message and error code.
+     * @param message A message containing details on the error that caused the
+     * exception
+     * @param errorCode the error code of the exception (one of the error code
+     * fields of this class)
+     */
+    public MediaException(String message, int errorCode)
+    {
+        super(message);
+        this.errorCode = errorCode;
+    }
+
+    /**
+     * Creates an exception with the specified message, errorCode and cause.
+     * @param message A message containing details on the error that caused the
+     * exception
+     * @param errorCode the error code of the exception (one of the error code
+     * fields of this class)
+     * @param cause the error that caused this exception
+     */
+    public MediaException(String message, int errorCode, Throwable cause)
+    {
+        super(message, cause);
+        this.errorCode = errorCode;
+    }
+
+    /**
+     * Obtain the error code value.
+     *
+     * @return the error code for the exception.
+     */
+    public int getErrorCode()
+    {
+        return errorCode;
+    }
+}