/** * 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 kafka.message import java.io.InputStream import java.nio.ByteBuffer class ByteBufferBackedInputStream(buffer:ByteBuffer) extends InputStream { override def read():Int = { buffer.hasRemaining match { case true => (buffer.get() & 0xFF) case false => -1 } } override def read(bytes:Array[Byte], off:Int, len:Int):Int = { buffer.hasRemaining match { case true => // Read only what's left val realLen = math.min(len, buffer.remaining()) buffer.get(bytes, off, realLen) realLen case false => -1 } } }