Initial revision

From-SVN: r102074

libjava/classpath/java/awt/datatransfer/SystemFlavorMap.java

@@ -0,0 +1,169 @@
+/* SystemFlavorMap.java -- Maps between native flavor names and MIME types.
+   Copyright (C) 2001, 2004  Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package java.awt.datatransfer;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+  * This class maps between native platform type names and DataFlavors.
+  *
+  * XXX - The current implementation does no mapping at all.
+  *
+  * @author Mark Wielaard (mark@klomp.org)
+  *
+  * @since 1.2
+  */
+public final class SystemFlavorMap implements FlavorMap, FlavorTable
+{
+  /**
+   * The default (instance) flavor map.
+   */
+  private static FlavorMap defaultFlavorMap;
+
+  /**
+   * Private constructor.
+   */
+  private SystemFlavorMap ()
+  {
+  }
+
+  /**
+   * Maps the specified <code>DataFlavor</code> objects to the native
+   * data type name.  The returned <code>Map</code> has keys that are
+   * the data flavors and values that are strings.  The returned map
+   * may be modified.  This can be useful for implementing nested mappings.
+   *
+   * @param flavors An array of data flavors to map
+   *                or null for all data flavors.
+   *
+   * @return A <code>Map</code> of native data types to data flavors.
+   */
+  public Map getNativesForFlavors (DataFlavor[] flavors)
+  {
+    return new HashMap();
+  }
+
+  /**
+   * Maps the specified native type names to <code>DataFlavor</code>'s.
+   * The returned <code>Map</code> has keys that are strings and values
+   * that are <code>DataFlavor</code>'s.  The returned map may be
+   * modified.  This can be useful for implementing nested mappings.
+   *
+   * @param natives An array of native types to map
+   *                or null for all native types.
+   *
+   * @return A <code>Map</code> of data flavors to native type names.
+   */
+  public Map getFlavorsForNatives (String[] natives)
+  { 
+    return new HashMap();
+  }
+
+  /**
+   * Returns the default (instance) (System)FlavorMap.
+   */
+  public static FlavorMap getDefaultFlavorMap ()
+  {
+    if (defaultFlavorMap == null)
+      defaultFlavorMap = new SystemFlavorMap ();
+
+    return defaultFlavorMap;
+  }
+
+  /**
+   * Returns the native type name for the given java mime type.
+   */
+  public static String encodeJavaMIMEType (String mime)
+  {
+    return null;
+  }
+
+  /**
+   * Returns the native type name for the given data flavor.
+   */
+  public static String encodeDataFlavor (DataFlavor df)
+  {
+    return null;
+  }
+
+  /**
+   * Returns true if the native type name can be represented as
+   * a java mime type.
+   */
+  public static boolean isJavaMIMEType (String name)
+  {
+    return false;
+  }
+
+  /**
+   * Returns the java mime type for the given the native type name.
+   */
+  public static String decodeJavaMIMEType (String name)
+  {
+    return null;
+  }
+
+  /**
+   * Returns the data flavor given the native type name
+   * or null when no such data flavor exists.
+   */
+  public static DataFlavor decodeDataFlavor (String name)
+    throws ClassNotFoundException
+  {
+    String javaMIMEType = decodeJavaMIMEType (name);
+    
+    if (javaMIMEType != null)
+      return new DataFlavor (javaMIMEType);
+    else
+      return null;
+  }
+
+  public List getFlavorsForNative (String nat)
+  {
+    throw new Error ("Not implemented");
+  }
+
+  public List getNativesForFlavor (DataFlavor flav)
+  {
+    throw new Error ("Not implemented");
+  }
+
+} // class SystemFlavorMap