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1: /* IppValueTag.java -- 2: Copyright (C) 2006 Free Software Foundation, Inc. 3: 4: This file is part of GNU Classpath. 5: 6: GNU Classpath is free software; you can redistribute it and/or modify 7: it under the terms of the GNU General Public License as published by 8: the Free Software Foundation; either version 2, or (at your option) 9: any later version. 10: 11: GNU Classpath is distributed in the hope that it will be useful, but 12: WITHOUT ANY WARRANTY; without even the implied warranty of 13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14: General Public License for more details. 15: 16: You should have received a copy of the GNU General Public License 17: along with GNU Classpath; see the file COPYING. If not, write to the 18: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 19: 02110-1301 USA. 20: 21: Linking this library statically or dynamically with other modules is 22: making a combined work based on this library. Thus, the terms and 23: conditions of the GNU General Public License cover the whole 24: combination. 25: 26: As a special exception, the copyright holders of this library give you 27: permission to link this library with independent modules to produce an 28: executable, regardless of the license terms of these independent 29: modules, and to copy and distribute the resulting executable under 30: terms of your choice, provided that you also meet, for each linked 31: independent module, the terms and conditions of the license of that 32: module. An independent module is a module which is not derived from 33: or based on this library. If you modify this library, you may extend 34: this exception to your version of the library, but you are not 35: obligated to do so. If you do not wish to do so, delete this 36: exception statement from your version. */ 37: 38: 39: package gnu.javax.print.ipp; 40: 41: /** 42: * IPP Value Tags as described in RFC 2910 section 3.5.2. 43: * <p> 44: * Attributes are always of a special type syntax (e.g. boolean or 45: * interger attribute). These value types are specified by the tag 46: * constants provided in this class. Beside the syntax types some 47: * out of band values for reporting requested attributes as 48: * unsupported, unknown etc. back to the client. 49: * </p> 50: * 51: * @author Wolfgang Baer (WBaer@gmx.de) 52: */ 53: public final class IppValueTag 54: { 55: 56: /** Out of band value for unsupported attributes. */ 57: public static final byte UNSUPPORTED = 0x10; 58: 59: // 0x11 reserved for 'default' for definition in a future 60: // IETF standards track document 61: 62: /** Out of band value for unknown attributes. */ 63: public static final byte UNKNOWN = 0x12; 64: 65: /** Out of band value for attribute without a value. */ 66: public static final byte NO_VALUE = 0x13; 67: 68: // 0x14-0x1F reserved for "out-of-band" values in future IETF 69: // standards track documents. 70: 71: // 0x20 reserved for definition in a future IETF 72: // standards track document 73: 74: /** Indicates a value of syntax type integer. */ 75: public static final byte INTEGER = 0x21; 76: 77: /** Indicates a value of syntax type boolean. */ 78: public static final byte BOOLEAN = 0x22; 79: 80: /** Indicates a value of syntax type enum (enumeration). */ 81: public static final byte ENUM = 0x23; 82: 83: // 0x24-0x2F reserved for integer types for definition in 84: // future IETF standards track documents 85: 86: /** Indicates a value of syntax type octect string. */ 87: public static final byte OCTECTSTRING_UNSPECIFIED = 0x30; 88: 89: /** Indicates a value of syntax type datetime. */ 90: public static final byte DATETIME = 0x31; 91: 92: /** Indicates a value of syntax type resolution. */ 93: public static final byte RESOLUTION = 0x32; 94: 95: /** Indicates a value of syntax type range of integers. */ 96: public static final byte RANGEOFINTEGER = 0x33; 97: 98: // 0x34 reserved for definition in a future IETF 99: // standards track document 100: 101: /** Indicates a value of syntax type text with language. */ 102: public static final byte TEXT_WITH_LANGUAGE = 0x35; 103: 104: /** Indicates a value of syntax type name with language. */ 105: public static final byte NAME_WITH_LANGUAGE = 0x36; 106: 107: // 0x37-0x3F reserved for octetString type definitions in 108: // future IETF standards track documents 109: 110: // 0x40 reserved for definition in a future IETF 111: // standards track document 112: 113: /** Indicates a value of syntax type text without language. */ 114: public static final byte TEXT_WITHOUT_LANGUAGE = 0x41; 115: 116: /** Indicates a value of syntax type name without language. */ 117: public static final byte NAME_WITHOUT_LANGUAGE = 0x42; 118: 119: // 0x43 reserved for definition in a future IETF 120: // standards track document 121: 122: /** Indicates a value of syntax type keyword. */ 123: public static final byte KEYWORD = 0x44; 124: 125: /** Indicates a value of syntax type URI. */ 126: public static final byte URI = 0x45; 127: 128: /** Indicates a value of syntax type URI scheme. */ 129: public static final byte URI_SCHEME = 0x46; 130: 131: /** Indicates a value of syntax type charset. */ 132: public static final byte CHARSET = 0x47; 133: 134: /** Indicates a value of syntax type language. */ 135: public static final byte NATURAL_LANGUAGE =0x48; 136: 137: /** Indicates a value of syntax type mime media. */ 138: public static final byte MIME_MEDIA_TYPE = 0x49; 139: 140: // 0x4A-0x5F reserved for character string type definitions 141: // in future IETF standards track documents 142: 143: 144: private IppValueTag() 145: { 146: // not to be instantiated; 147: } 148: 149: /** 150: * Tests if given value corresponds to a 151: * value tag value. 152: * 153: * @param value the value to test for 154: * @return <code>true</code> if, <code>false</code> otherwise. 155: */ 156: public static boolean isValueTag(byte value) 157: { 158: if(value == 0x10 || value == 0x12 || value == 0x13 159: || value == 0x21 || value == 0x22 || value == 0x23 160: || value == 0x30 || value == 0x31 || value == 0x32 161: || value == 0x33 || value == 0x35 || value == 0x36 162: || value == 0x41 || value == 0x42 || value == 0x44 163: || value == 0x45 || value == 0x46 || value == 0x47 164: || value == 0x48 || value == 0x49 ) 165: return true; 166: 167: return false; 168: } 169: 170: }