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1: /* UnknownAttribute.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.attribute; 40: 41: import gnu.javax.print.ipp.IppUtilities; 42: import gnu.javax.print.ipp.IppValueTag; 43: 44: import java.net.URI; 45: import java.net.URISyntaxException; 46: 47: import javax.print.attribute.Attribute; 48: 49: /** 50: * UnknownAttribute holds all the parsed Attribute information. 51: * It provides methods to get the value-tag, name and value. 52: * 53: * @author Wolfgang Baer (WBaer@gmx.de) 54: */ 55: public final class UnknownAttribute implements Attribute 56: { 57: private byte tag; 58: private String name; 59: private byte[] value; 60: 61: /** 62: * Creates a <code>UnknownAttribute</code> object with the given values. 63: * 64: * @param tag the value tag 65: * @param name the attribute name 66: * @param value the byte[] with the value 67: */ 68: public UnknownAttribute(byte tag, String name, byte[] value) 69: { 70: this.tag = tag; 71: this.name = name; 72: this.value = value; 73: } 74: 75: /** 76: * Returns category of this class. 77: * 78: * @return The class <code>UnknownAttribute</code> itself. 79: */ 80: public Class<? extends Attribute> getCategory() 81: { 82: return UnknownAttribute.class; 83: } 84: 85: /** 86: * Returns the name of this attribute. 87: * 88: * @return The name attributes IPP name. 89: */ 90: public String getName() 91: { 92: return name; 93: } 94: 95: /** 96: * Returns the value tag 97: * @return The tag. 98: * 99: * @see gnu.javax.print.ipp.IppValueTag 100: */ 101: public byte getValueTag() 102: { 103: return tag; 104: } 105: 106: /** 107: * Returns the name of the attribute. 108: * @return The name. 109: */ 110: public String getAttributeName() 111: { 112: return name; 113: } 114: 115: /** 116: * Returns the attribute value origin byte array. 117: * @return The value. 118: */ 119: public byte[] getAttributeValue() 120: { 121: return value; 122: } 123: 124: /** 125: * Returns the attribute value decoded as String. 126: * @return The value as String. 127: */ 128: public String getAttributeValueAsString() 129: { 130: return new String(value); 131: } 132: 133: /** 134: * Returns the attribute value decoded as int. 135: * @return The value as int. 136: */ 137: public int getAttributeValueAsInt() 138: { 139: return IppUtilities.convertToInt(value); 140: } 141: 142: /** 143: * Returns the attribute value decoded as an URI. 144: * @return The value as URI. 145: */ 146: public URI getAttributeValueAsUri() 147: { 148: try 149: { 150: return new URI(new String(value)); 151: } 152: catch (URISyntaxException e) 153: { 154: return null; 155: } 156: } 157: 158: /** 159: * Provides a string representation for some default 160: * tag types (e.g. int, rangeofinteger, string, uri). 161: * For other more complex types "No conversion found." 162: * is returned. 163: */ 164: public String toString() 165: { 166: switch (tag) 167: { 168: case IppValueTag.INTEGER: 169: return "" + getAttributeValueAsInt(); 170: case IppValueTag.RANGEOFINTEGER: 171: int lower = IppUtilities.convertToInt(value[0], value[1], 172: value[2], value[3]); 173: int upper = IppUtilities.convertToInt(value[4], value[5], 174: value[6], value[7]); 175: return lower + "-" + upper; 176: case IppValueTag.URI: 177: return getAttributeValueAsUri().toString(); 178: case IppValueTag.KEYWORD: 179: case IppValueTag.URI_SCHEME: 180: case IppValueTag.CHARSET: 181: case IppValueTag.NATURAL_LANGUAGE: 182: case IppValueTag.MIME_MEDIA_TYPE: 183: case IppValueTag.NAME_WITHOUT_LANGUAGE: 184: case IppValueTag.TEXT_WITHOUT_LANGUAGE: 185: return getAttributeValueAsString(); 186: default: 187: return "No conversion found."; 188: } 189: } 190: }