001 /* 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, 013 * software distributed under the License is distributed on an 014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 015 * KIND, either express or implied. See the License for the 016 * specific language governing permissions and limitations 017 * under the License. 018 * 019 */ 020 package org.apache.directory.shared.asn1.ber.tlv; 021 022 023 /** 024 * Stores the different states of a PDU parsing. 025 * 026 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 027 * @version $Rev: 664290 $, $Date: 2008-06-07 08:28:06 +0200 (Sat, 07 Jun 2008) $ 028 */ 029 public class TLVStateEnum 030 { 031 // ~ Static fields/initializers 032 // ----------------------------------------------------------------- 033 034 /** Start means that the deconding hasn't read the first byte */ 035 public static final int TAG_STATE_START = 0x00; 036 037 /** Pending means that the Type Tag is contained in more that one byte */ 038 public static final int TAG_STATE_PENDING = 0x01; 039 040 /** End means that the Type is totally read */ 041 public static final int TAG_STATE_END = 0x02; 042 043 /** 044 * Overflow could have two meaning : either there are more than 5 bytes to 045 * encode the value (5 bytes = 5bits + 4*7 bits = 33 bits) or the value that 046 * is represented by those bytes is over MAX_INTEGER 047 */ 048 public static final int TAG_STATE_OVERFLOW = 0x04; 049 050 /** Start means that the decoding hasn't read the first byte */ 051 public static final int LENGTH_STATE_START = 0x08; 052 053 /** Pending means that the Type length is contained in more that one byte */ 054 public static final int LENGTH_STATE_PENDING = 0x10; 055 056 /** End means that the Length is totally read */ 057 public static final int LENGTH_STATE_END = 0x20; 058 059 /** Start means that the decoding hasn't read the first byte */ 060 public static final int VALUE_STATE_START = 0x40; 061 062 /** Pending means that the Type Value is contained in more that one byte */ 063 public static final int VALUE_STATE_PENDING = 0x80; 064 065 /** End means that the Value is totally read */ 066 public static final int VALUE_STATE_END = 0x100; 067 068 /** The decoding of a TLV is done */ 069 public static final int TLV_STATE_DONE = 0x200; 070 071 /** The decoding of a PDU is done */ 072 public static final int PDU_DECODED = 0x400; 073 }