Java Code Examples for javax.microedition.io.StreamConnection

protected File openFile( String filename, boolean readMode, boolean appendMode, boolean updateMode, boolean binaryMode ) throws IOException {
	String url = "file:///" + filename;
	int mode  = readMode? Connector.READ: Connector.READ_WRITE;
	StreamConnection conn = (StreamConnection) Connector.open( url, mode );
	File f = readMode? 
			new FileImpl(conn, conn.openInputStream(), null):
			new FileImpl(conn, conn.openInputStream(), conn.openOutputStream());
	/*
	if ( appendMode ) {
		f.seek("end",0);
	} else {
		if ( ! readMode )
			conn.truncate(0);
	}
	*/
	return f;
}
 

public static void onMessage(final PushInputStream stream, final StreamConnection sc) {
    if(pushCallback != null) {
        new Thread() {
            public void run() {
                try {
                    final byte[] buffer = Util.readInputStream(stream);
                    try {
                        stream.accept();
                        Util.cleanup(stream);
                        sc.close();
                    } catch(Throwable t) {}
                    updateIndicator(unreadCount + 1);
                    Display.getInstance().callSerially(new Runnable() {
                        public void run() {
                            pushCallback.push(new String(buffer));
                        }
                    });
                } catch(IOException err) {
                    err.printStackTrace();
                }
            }
        }.start();
    }
}
 

/** 
 * Disconnect from the underlying socket transport.
 * Closes the low level socket connection and the input and 
 * output streams used by the socket.
 * <p>
 * Warning: A subclass that implements connect, should also implement this
 * method without calling this method.
 *
 * @param connection connection return from {@link #connect()}
 * @exception IOException if an I/O error occurs while
 *                  the connection is terminated.
 * @exception IOException is thrown if the connection or 
 *                        associated streams cannot be closed
 */
protected void disconnect(StreamConnection connection)
       throws IOException {
    try {
        if (connection != null) {
            connection.close();
        }
    } finally {
        try {
            if (streamOutput != null) {
                streamOutput.close();
                streamOutput = null;
            }
        } finally {
            if (streamInput != null) {
                streamInput.close();
                streamInput = null;
            }
        }
    }
}
 

void testBasicSSLStreamConnection() throws IOException {
    StreamConnection t = (StreamConnection)Connector.open(SOCKET_URL);
    try {
        SSLStreamConnection s =
            new SSLStreamConnection(HOST, PORT, t.openInputStream(), t.openOutputStream(), KEY_STORE);
        OutputStream os = s.openOutputStream();
        InputStream is = s.openInputStream();

        send(os, MESSAGE);
        th.check(receive(is), MESSAGE);

        os.close();
        is.close();
        s.close();
    } finally {
        t.close();
    }
}
 

void testMultipleSendsReceivesOnSameSocket() throws IOException {
    StreamConnection t = (StreamConnection)Connector.open(SOCKET_URL);
    try {
        SSLStreamConnection s =
            new SSLStreamConnection(HOST, PORT, t.openInputStream(), t.openOutputStream(), KEY_STORE);
        OutputStream os = s.openOutputStream();
        InputStream is = s.openInputStream();

        for (int i = 0; i < 100; i++) {
            String message = "Message n." + i;
            send(os, message);
            th.check(receive(is), message);
        }

        os.close();
        is.close();
        s.close();
    } finally {
        t.close();
    }
}
 

void testMultipleSendsReceivesOnMultipleSockets() throws IOException {
    for (int i = 0; i < 100; i++) {
        StreamConnection t = (StreamConnection)Connector.open(SOCKET_URL);
        try {
            SSLStreamConnection s =
                new SSLStreamConnection(HOST, PORT, t.openInputStream(), t.openOutputStream(), KEY_STORE);
            OutputStream os = s.openOutputStream();
            InputStream is = s.openInputStream();

            String message = "Message n." + i;
            send(os, message);
            th.check(receive(is), message);

            os.close();
            is.close();
            s.close();
        } finally {
            t.close();
        }
    }
}
 

void testSendOnClosedOutputStream() throws IOException {
    StreamConnection t = (StreamConnection)Connector.open(SOCKET_URL);
    try {
        SSLStreamConnection s =
            new SSLStreamConnection(HOST, PORT, t.openInputStream(), t.openOutputStream(), KEY_STORE);
        OutputStream os = s.openOutputStream();
        InputStream is = s.openInputStream();

        os.close();
        try {
            send(os, MESSAGE);
            th.fail("send on closed output stream");
        } catch(Exception e) {
            th.check(e, "java.io.InterruptedIOException: Stream closed");
        }

        is.close();
        s.close();
    } finally {
        t.close();
    }
}
 

void testReceiveOnClosedInputStream() throws IOException {
    StreamConnection t = (StreamConnection)Connector.open(SOCKET_URL);
    try {
        SSLStreamConnection s =
            new SSLStreamConnection(HOST, PORT, t.openInputStream(), t.openOutputStream(), KEY_STORE);
        OutputStream os = s.openOutputStream();
        InputStream is = s.openInputStream();

        send(os, MESSAGE);
        is.close();
        try {
            receive(is);
            th.fail("receive on closed input stream");
        } catch(Exception e) {
            th.check(e, "java.io.InterruptedIOException: Stream closed");
        }

        os.close();
        s.close();
    } finally {
        t.close();
    }
}
 

public StreamConnection acceptAndOpen() throws IOException {
	if (serverSocket == null) {
		throw new IOException();
	}
	socket = serverSocket.accept();
	return new SPPConnectionImpl(socket, skipAfterWrite);
}
 

/**
 * Create a new instance of this class.
 *
 * @param p_protocol protocol for the connection
 * @param p_host     hostname for the connection
 * @param p_port     port number for the connection
 * @param p_sc       stream connection
 * @param p_dos      data output stream from the stream connection
 * @param p_dis      data input stream from the stream connection
 */
StreamConnectionElement(String p_protocol,
                        String p_host,
                        int p_port,
                        StreamConnection p_sc,
                        DataOutputStream p_dos,
                        DataInputStream p_dis) {
    m_protocol = p_protocol;
    m_host = p_host;
    m_port = p_port;
    m_stream = p_sc;
    m_data_output_stream = p_dos;
    m_data_input_stream = p_dis;
    m_time = System.currentTimeMillis();
}
 

@Override
public StreamConnection acceptAndOpen() throws IOException {
	return new SocketConnection(serverSocket.accept());
}
 

public StreamConnection acceptAndOpen() throws IOException {
return new SocketConnectionImpl(factory, socket.accept());
 }
 

private FileImpl( StreamConnection conn, InputStream is, OutputStream os ) {
	this.conn = conn;
	this.is = is;
	this.os = os;
}
 

public ObexTransport acceptAndOpen() throws IOException {
    return createTransportConnection(
            (StreamConnection)(notifier.acceptAndOpen()));
}
 

protected BTGOEPConnection createTransportConnection(
        StreamConnection sock) throws IOException {
    return new BTGOEPConnection(sock);
}
 

protected BTGOEPConnection(StreamConnection sock) throws IOException {
    this.sock = sock;
    is = sock.openInputStream();
    os = sock.openOutputStream();
}
 

/**
 * Tries to add a reuseable connection to the connection pool.
 * Replace any not in use connections to the same host and port.
 * Will not add to the same host and port in use. Will replace
 * oldest not in use element (if any) if the pool is full.
 * 
 * @param p_protocol            The protocol for the connection
 * @param p_host                The Hostname for the connection
 * @param p_port                The port number for the connection
 * @param sc                    The base stream connection
 * @param dos                   The data output stream from the base
 *                                connection
 * @param dis                   The data input stream from the base
 *                                connection
 *
 * @return true if the connection was added, otherwise false
 */
synchronized boolean add(String p_protocol,
        String p_host, int p_port, StreamConnection sc,
        DataOutputStream dos, DataInputStream dis) {

    StreamConnectionElement oldestNotInUse = null;

    // find the last unused element
    Enumeration cons = m_connections.elements();
    while (cons.hasMoreElements()) {
        StreamConnectionElement sce =
            (StreamConnectionElement)cons.nextElement();

        if (sce.m_in_use) {
            if (p_host.equals(sce.m_host) && p_port == sce.m_port) {
                return false;
            }

            continue;
        }

        // if the connection is a duplicate, delete it
        if (p_host.equals(sce.m_host) && p_port == sce.m_port) {
            // no protocol duplicates on host and port
            sce.close();
            m_connections.removeElement(sce);
            break;
        } else {
            if (oldestNotInUse == null ||
                sce.m_time < oldestNotInUse.m_time) {
                // save the oldest not in use, it may be removed later
                oldestNotInUse = sce;
            }
        }
    }

    /*
     * first check and see if the maximum number of connections
     * has been reached - if so delete the first one in the list (FIFO)
     *   or
     * if this port and host are already in the pool.
     */
    if (m_connections.size() >= m_max_connections) {
        if (oldestNotInUse == null) {
            return false;
        }

        oldestNotInUse.close();
        m_connections.removeElement(oldestNotInUse);
    }
 
    m_connections.addElement(new StreamConnectionElement(p_protocol,
                      p_host, p_port, sc, dos, dis));
    return true;
}
 

protected StreamConnection connect() throws IOException {
    stream = new StubStreamConnection(inbuf);
    return stream;
}
 

/**
 * Gets the underlying stream connection.
 *
 * @return underlying stream connection
 */
protected StreamConnection getStreamConnection() {
    return streamConnection;
}
 

/**
 * Get the stream connection for this element.
 *
 * @return                     base stream connection
 */
public StreamConnection getBaseConnection() {
    return m_stream;
}