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