/* * 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; } }