author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Thu, 27 May 2010 12:49:31 +0300 | |
changeset 26 | dc7c549001d5 |
parent 23 | 98ccebc37403 |
child 72 | 1f0034e370aa |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2002 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: This class is an imlementation of DataSource |
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* |
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*/ |
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|
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|
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package com.nokia.microedition.media; |
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|
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import javax.microedition.media.MediaException; |
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import java.io.IOException; |
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import javax.microedition.io.Connection; |
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import javax.microedition.io.HttpConnection; |
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import javax.microedition.media.Control; |
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/** |
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* This class extends ConnectorDataSource and adds http connection |
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* return value checking. |
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*/ |
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public class HttpDataSource extends ConnectorDataSource implements SeekControl |
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{ |
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private static final String SEEK_CONTROL = "SeekControl"; |
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|
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// true when closed |
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boolean iClosed = false; |
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|
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/** |
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* Default constructor |
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*/ |
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public HttpDataSource(Locator aLocator) |
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throws IOException, MediaException |
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{ |
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super(aLocator); |
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} |
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|
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/** |
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* From ConnectorDataSource |
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* @see ConnectorDataSource |
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*/ |
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protected void checkConnection(Connection aConnection) throws IOException |
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{ |
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// Must handle also HTTP response codes |
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HttpConnection httpConnection = (HttpConnection)aConnection; |
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if (httpConnection.getResponseCode() != HttpConnection.HTTP_OK) |
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{ |
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throw new IOException( |
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"Could not connect to source, " + httpConnection.getResponseMessage()); |
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} |
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} |
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|
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/** |
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* From SeekControl |
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*/ |
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public void seek(int aWhere) throws IOException |
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{ |
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// Only seek to start is supported. |
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if (aWhere == 0) |
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{ |
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disconnect(); |
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|
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// do not connect if stream is closed |
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if (!iClosed) |
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{ |
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connect(); |
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} |
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|
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if (iClosed) |
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{ |
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// disconnect if stream was closed during connect operation |
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disconnect(); |
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} |
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} |
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else |
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{ |
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throw new IOException("Internal error, invalid position: " + aWhere); |
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} |
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} |
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|
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/** |
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* From SeekControl |
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*/ |
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public void close() |
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{ |
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iClosed = true; |
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} |
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|
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/** |
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* From Controllable |
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*/ |
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public Control getControl(String aControlType) |
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{ |
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Control control = null; |
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if (aControlType.equals(SEEK_CONTROL)) |
98ccebc37403
Revision: v2.1.24
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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105 |
{ |
98ccebc37403
Revision: v2.1.24
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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106 |
control = this; |
98ccebc37403
Revision: v2.1.24
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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107 |
} |
98ccebc37403
Revision: v2.1.24
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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|
108 |
// else return null |
98ccebc37403
Revision: v2.1.24
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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109 |
return control; |
98ccebc37403
Revision: v2.1.24
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
110 |
} |
98ccebc37403
Revision: v2.1.24
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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|
111 |
} |
98ccebc37403
Revision: v2.1.24
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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112 |
// End of File |
98ccebc37403
Revision: v2.1.24
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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113 |