| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 org.apache.harmony.luni.util; |
| |
| import java.io.ByteArrayInputStream; |
| |
| /** |
| * The extension of <code>ByteArrayInputStream</code> which exposes an |
| * underlying buffer. |
| */ |
| public class ExposedByteArrayInputStream extends ByteArrayInputStream { |
| |
| /** |
| * @see java.io.ByteArrayInputStream(byte[]) |
| */ |
| public ExposedByteArrayInputStream(byte buf[]) { |
| super(buf); |
| } |
| |
| /** |
| * @see java.io.ByteArrayInputStream(byte[], int, int) |
| */ |
| public ExposedByteArrayInputStream(byte buf[], int offset, int length) { |
| super(buf, offset, length); |
| } |
| |
| /** |
| * Reads the whole stream and returns the stream snapshot. |
| */ |
| public synchronized byte[] expose() { |
| if (pos == 0 && count == buf.length) { |
| skip(count); |
| return buf; |
| } |
| |
| final int available = available(); |
| final byte[] buffer = new byte[available]; |
| System.arraycopy(buf, pos, buffer, 0, available); |
| skip(available); |
| return buffer; |
| } |
| } |