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/*
* Copyright (C) 2009 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.bluetooth;
import java.io.IOException;
import java.io.OutputStream;
/**
* BluetoothOutputStream.
*
* Used to read from a Bluetooth socket.
*
* @hide
*/
/*package*/ final class BluetoothOutputStream extends OutputStream {
private BluetoothSocket mSocket;
/*package*/ BluetoothOutputStream(BluetoothSocket s) {
mSocket = s;
}
/**
* Close this output stream and the socket associated with it.
*/
public void close() throws IOException {
mSocket.close();
}
/**
* Writes a single byte to this stream. Only the least significant byte of
* the integer {@code oneByte} is written to the stream.
*
* @param oneByte the byte to be written.
* @throws IOException if an error occurs while writing to this stream.
* @since Android 1.0
*/
public void write(int oneByte) throws IOException {
byte[] b = new byte[1];
b[0] = (byte) oneByte;
mSocket.write(b, 0, 1);
}
/**
* Writes {@code count} bytes from the byte array {@code buffer} starting
* at position {@code offset} to this stream.
*
* @param b the buffer to be written.
* @param offset the start position in {@code buffer} from where to get bytes.
* @param count the number of bytes from {@code buffer} to write to this stream.
* @throws IOException if an error occurs while writing to this stream.
* @throws IndexOutOfBoundsException if {@code offset < 0} or {@code count < 0}, or if {@code
* offset + count} is bigger than the length of {@code buffer}.
* @since Android 1.0
*/
public void write(byte[] b, int offset, int count) throws IOException {
if (b == null) {
throw new NullPointerException("buffer is null");
}
if ((offset | count) < 0 || count > b.length - offset) {
throw new IndexOutOfBoundsException("invalid offset or length");
}
mSocket.write(b, offset, count);
}
/**
* Wait until the data in sending queue is emptied. A polling version
* for flush implementation. Use it to ensure the writing data afterwards will
* be packed in the new RFCOMM frame.
*
* @throws IOException if an i/o error occurs.
* @since Android 4.2.3
*/
public void flush() throws IOException {
mSocket.flush();
}
}
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