Blackberry JAVA DEVELOPMENT ENVIRONMENT - - CRYPTOGRAPHIC SMART CARD DRIVER - DEVELOPMENT GUIDE Anleitung zur Fehlerbehebung PDF herunterladen (Seite 63)

2: Using graphics and multimedia

}

public InputStream getInputStream(String uri, ConnectionInfo info)

throws IOException, MediaException {

if (uri.startsWith(“myprotocol://”)) {

// Perform special tasks.

info.setConnection(new MyProtocolConnection());

info.setContentType(“application/x-vnd.rim.pme”);

// OpenMyInputStream() is a custom method that opens

//stream for “myprotocol://”

input = openMyInputStream(uri);

} else {

input = delegate.getInputStream(uri, info);

}

return input;

}

private InputStream openMyInputStream(String uri) {

InputStream input = null;

// @todo: open stream here

return input;

}

public void releaseConnection(ConnectionInfo info)

throws IOException, MediaException {

Object o = info.getConnection();

if (o instanceof MyProtocolConnection) {

((MyProtocolConnection)o).close(); // Perform cleanup.

} else {

delegate.releaseConnection(info);

}

public void setProperty(String property, String value) {

delegate.setProperty(property, value);

}

// Inner class that defines the connection class.

public static class MyProtocolConnection {

public MyProtocolConnection() {

// ...

}

public void close() {

// ...

}

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Blackberry JAVA DEVELOPMENT ENVIRONMENT - - CRYPTOGRAPHIC SMART CARD DRIVER - DEVELOPMENT GUIDE Anleitung zur Fehlerbehebung Seite 63