/*

* Copyright (c) 2002 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:  This class is an imlementation of DataSource

*

*/

package com.nokia.microedition.media;

import javax.microedition.media.Control;

import javax.microedition.media.protocol.DataSource;

import javax.microedition.media.protocol.SourceStream;

import java.io.IOException;

/**

 * DataSource which has InputStreamSourceStream.

 */

public class InputStreamDataSource extends DataSource

{

    // DataSource's stream

    protected InputStreamSourceStream iSourceStream;

    // string that describes the content-type of the media that the source

    // is providing.

    protected String iContentType;

    /**

     * Constructor.

     * @param aSourceStream SourceSteam

     * @param aType Content type.

     */

    public InputStreamDataSource(InputStreamSourceStream aSourceStream,

                                 String aType)

    {

        super(null);   // no locator

        iSourceStream = aSourceStream;

        iContentType = aType;

    }

    /**

     * Constructor with Locator and stream

     * @param aLocator Locator

     * @param aSourceStream SourceSteam

     * @param aType Content type.

     */

    public InputStreamDataSource(String aLocator,

                                 InputStreamSourceStream aSourceStream,

                                 String aType)

    {

        super(aLocator);

        iSourceStream = aSourceStream;

        iContentType = aType;

    }

    /**

     * Constructor with locator

     * @param aLocator Locator

     */

    public InputStreamDataSource(String aLocator)

    {

        super(aLocator);

    }

    /**

     * from DataSource

     * @return Content Type

     * @see DataSource

     */

    public String getContentType()

    {

        return iContentType;

    }

    /**

     * from DataSource

     * Connect to the stream

     * @throws IOException

     * @see DataSource

     */

    public void connect() throws IOException

    {

    }

    /**

     * from DataSource

     * Disconnect from the stream

     */

    public void disconnect()

    {

    }

    /**

     * from DataSource

     * Put DataSource to STARTED state

     * @throws IOException Throw if DataSource is in wrong state

     * @see DataSource

     */

    public void start() throws IOException

    {

    }

    /**

     * from DataSource

     * Stops DataSource

     * @see DataSource

     */

    public void stop()

    {

    }

    /**

     * from DataSource

     * return sourceStreams of the DataSource

     *

     * @exception IllegalStateException Thrown if the source is not connected.

     * @return set of source streams

     * @see DataSource

     */

    public SourceStream[] getStreams()

    {

        SourceStream[] streams = new SourceStream[ 1 ];

        streams[ 0 ] = iSourceStream;

        return streams;

    }

    /**

     * from interface Controllable

     * Method return controls of the DataSource

     * @return Control

     * @see Controllable

     * @see DataSource

     */

    public Control[] getControls()

    {

        return new Control[ 0 ];

    }

    /**

     * from interface Controllable

     * Return a control by the Control Type, not supported

     * @param aControlType type of the control

     * @return Control

     */

    public Control getControl(String aControlType)

    {

        return iSourceStream.getControl("SeekControl");

    }

}

// End of File