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1: /* SystemFlavorMap.java -- Maps between native flavor names and MIME types. 2: Copyright (C) 2001, 2004 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 java.awt.datatransfer; 40: 41: import java.util.HashMap; 42: import java.util.List; 43: import java.util.Map; 44: 45: /** 46: * This class maps between native platform type names and DataFlavors. 47: * 48: * XXX - The current implementation does no mapping at all. 49: * 50: * @author Mark Wielaard (mark@klomp.org) 51: * 52: * @since 1.2 53: */ 54: public final class SystemFlavorMap implements FlavorMap, FlavorTable 55: { 56: /** 57: * The default (instance) flavor map. 58: */ 59: private static FlavorMap defaultFlavorMap; 60: 61: /** 62: * Private constructor. 63: */ 64: private SystemFlavorMap () 65: { 66: } 67: 68: /** 69: * Maps the specified <code>DataFlavor</code> objects to the native 70: * data type name. The returned <code>Map</code> has keys that are 71: * the data flavors and values that are strings. The returned map 72: * may be modified. This can be useful for implementing nested mappings. 73: * 74: * @param flavors An array of data flavors to map 75: * or null for all data flavors. 76: * 77: * @return A <code>Map</code> of native data types to data flavors. 78: */ 79: public Map getNativesForFlavors (DataFlavor[] flavors) 80: { 81: return new HashMap(); 82: } 83: 84: /** 85: * Maps the specified native type names to <code>DataFlavor</code>'s. 86: * The returned <code>Map</code> has keys that are strings and values 87: * that are <code>DataFlavor</code>'s. The returned map may be 88: * modified. This can be useful for implementing nested mappings. 89: * 90: * @param natives An array of native types to map 91: * or null for all native types. 92: * 93: * @return A <code>Map</code> of data flavors to native type names. 94: */ 95: public Map getFlavorsForNatives (String[] natives) 96: { 97: return new HashMap(); 98: } 99: 100: /** 101: * Returns the default (instance) (System)FlavorMap. 102: */ 103: public static FlavorMap getDefaultFlavorMap () 104: { 105: if (defaultFlavorMap == null) 106: defaultFlavorMap = new SystemFlavorMap (); 107: 108: return defaultFlavorMap; 109: } 110: 111: /** 112: * Returns the native type name for the given java mime type. 113: */ 114: public static String encodeJavaMIMEType (String mime) 115: { 116: return null; 117: } 118: 119: /** 120: * Returns the native type name for the given data flavor. 121: */ 122: public static String encodeDataFlavor (DataFlavor df) 123: { 124: return null; 125: } 126: 127: /** 128: * Returns true if the native type name can be represented as 129: * a java mime type. 130: */ 131: public static boolean isJavaMIMEType (String name) 132: { 133: return false; 134: } 135: 136: /** 137: * Returns the java mime type for the given the native type name. 138: */ 139: public static String decodeJavaMIMEType (String name) 140: { 141: return null; 142: } 143: 144: /** 145: * Returns the data flavor given the native type name 146: * or null when no such data flavor exists. 147: */ 148: public static DataFlavor decodeDataFlavor (String name) 149: throws ClassNotFoundException 150: { 151: String javaMIMEType = decodeJavaMIMEType (name); 152: 153: if (javaMIMEType != null) 154: return new DataFlavor (javaMIMEType); 155: else 156: return null; 157: } 158: 159: public List getFlavorsForNative (String nat) 160: { 161: throw new Error ("Not implemented"); 162: } 163: 164: public List getNativesForFlavor (DataFlavor flav) 165: { 166: throw new Error ("Not implemented"); 167: } 168: 169: } // class SystemFlavorMap