1 /**************************************************************** 2 * Licensed to the Apache Software Foundation (ASF) under one * 3 * or more contributor license agreements. See the NOTICE file * 4 * distributed with this work for additional information * 5 * regarding copyright ownership. The ASF licenses this file * 6 * to you under the Apache License, Version 2.0 (the * 7 * "License"); you may not use this file except in compliance * 8 * with the License. You may obtain a copy of the License at * 9 * * 10 * http://www.apache.org/licenses/LICENSE-2.0 * 11 * * 12 * Unless required by applicable law or agreed to in writing, * 13 * software distributed under the License is distributed on an * 14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * 15 * KIND, either express or implied. See the License for the * 16 * specific language governing permissions and limitations * 17 * under the License. * 18 ****************************************************************/ 19 20 package org.apache.james.mime4j.decoder; 21 22 import java.util.Iterator; 23 24 public class ByteQueue { 25 26 private UnboundedFifoByteBuffer buf; 27 private int initialCapacity = -1; 28 29 public ByteQueue() { 30 buf = new UnboundedFifoByteBuffer(); 31 } 32 33 public ByteQueue(int initialCapacity) { 34 buf = new UnboundedFifoByteBuffer(initialCapacity); 35 this.initialCapacity = initialCapacity; 36 } 37 38 public void enqueue(byte b) { 39 buf.add(b); 40 } 41 42 public byte dequeue() { 43 return buf.remove(); 44 } 45 46 public int count() { 47 return buf.size(); 48 } 49 50 public void clear() { 51 if (initialCapacity != -1) 52 buf = new UnboundedFifoByteBuffer(initialCapacity); 53 else 54 buf = new UnboundedFifoByteBuffer(); 55 } 56 57 public Iterator iterator() { 58 return buf.iterator(); 59 } 60 61 62 } 63
