2015-05-05 Yvan Roux <yvan.roux@linaro.org>
[official-gcc.git] / libjava / classpath / javax / activation / ObjectDataContentHandler.java
blob3f5e2967a2f280ad81b41a0d6b32a28ef1f81362
1 /* ObjectDataContentHandler.java -- Data content handler using an object.
2 Copyright (C) 2004 Free Software Foundation, Inc.
4 This file is part of GNU Classpath.
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.
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.
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.
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.
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. */
38 package javax.activation;
40 import java.awt.datatransfer.DataFlavor;
41 import java.awt.datatransfer.UnsupportedFlavorException;
42 import java.io.IOException;
43 import java.io.OutputStream;
45 /**
46 * Data content handler that uses an existing DCH and reified object.
48 * @author <a href='mailto:dog@gnu.org'>Chris Burdess</a>
49 * @version 1.1
51 class ObjectDataContentHandler
52 implements DataContentHandler
55 private DataContentHandler dch;
56 private Object object;
57 private String mimeType;
58 private DataFlavor[] flavors;
60 public ObjectDataContentHandler(DataContentHandler dch, Object object,
61 String mimeType)
63 this.dch = dch;
64 this.object = object;
65 this.mimeType = mimeType;
68 public Object getContent(DataSource ds)
70 return object;
73 public DataContentHandler getDCH()
75 return dch;
78 public Object getTransferData(DataFlavor flavor, DataSource ds)
79 throws UnsupportedFlavorException, IOException
81 if (dch != null)
83 return dch.getTransferData(flavor, ds);
85 if (flavors == null)
87 getTransferDataFlavors();
89 if (flavor.equals(flavors[0]))
91 return object;
93 throw new UnsupportedFlavorException(flavor);
96 public DataFlavor[] getTransferDataFlavors()
98 if (flavors == null)
100 if (dch != null)
102 flavors = dch.getTransferDataFlavors();
104 else
106 flavors = new DataFlavor[1];
107 flavors[0] = new ActivationDataFlavor(object.getClass(),
108 mimeType, mimeType);
111 return flavors;
114 public void writeTo(Object object, String mimeType, OutputStream out)
115 throws IOException
117 if (dch != null)
119 dch.writeTo(object, mimeType, out);
121 else
123 throw new UnsupportedDataTypeException("no object DCH for MIME type " + mimeType);