| /* |
| * 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.xnet.provider.jsse; |
| |
| import org.apache.harmony.xnet.provider.jsse.SSLInputStream; |
| |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| |
| /** |
| * This is a wrapper input stream for ByteBuffer data source. |
| * Among with the read functionality it provides info |
| * about number of cunsumed bytes from the source ByteBuffer. |
| * The source ByteBuffer object can be reseted. |
| * So one instance of this wrapper can be reused for several |
| * ByteBuffer data sources. |
| */ |
| public class SSLBufferedInput extends SSLInputStream { |
| |
| private ByteBuffer in; |
| private int bytik; |
| private int consumed = 0; |
| |
| /** |
| * Constructor |
| */ |
| protected SSLBufferedInput() {} |
| |
| /** |
| * Sets the buffer as a data source |
| */ |
| protected void setSourceBuffer(ByteBuffer in) { |
| consumed = 0; |
| this.in = in; |
| } |
| |
| @Override |
| public int available() throws IOException { |
| // in assumption that the buffer has been set |
| return in.remaining(); |
| } |
| |
| /** |
| * Returns the number of consumed bytes. |
| */ |
| protected int consumed() { |
| return consumed; |
| } |
| |
| /** |
| * Reads the following byte value. If there are no bytes in the source |
| * buffer, method throws java.nio.BufferUnderflowException. |
| */ |
| @Override |
| public int read() throws IOException { |
| // TODO: implement optimized read(int) |
| // and read(byte[], int, int) methods |
| bytik = in.get() & 0x00FF; |
| consumed ++; |
| return bytik; |
| } |
| } |