| /* |
| * 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.vinci.transport.util; |
| |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| |
| /** |
| * Simple static adapter method for converting stream into byte[] |
| */ |
| public class StreamMaterializer { |
| |
| static private final int BUFFER_SIZE = 8192; |
| |
| /** |
| * Utility class not meant to be instantiated. |
| */ |
| private StreamMaterializer() { |
| } |
| |
| /** |
| * Bring the entire contents of the provided stream into a memory-resident byte array. Does NOT |
| * close the stream. |
| * |
| * @param input_stream - |
| * @return - |
| * @throws IOException - |
| * @exception IOException |
| * thrown by the input stream. |
| * @pre input_stream != null |
| */ |
| public static final byte[] materialize(InputStream input_stream) throws IOException { |
| ByteArrayOutputStream content = new ByteArrayOutputStream(BUFFER_SIZE); |
| byte[] b = new byte[BUFFER_SIZE]; |
| int num_read = input_stream.read(b); |
| while (num_read != -1) { |
| content.write(b, 0, num_read); |
| num_read = input_stream.read(b); |
| } |
| return content.toByteArray(); |
| } |
| |
| }// class |