01: /*
02: * Copyright (c) 2007, intarsys consulting GmbH
03: *
04: * Redistribution and use in source and binary forms, with or without
05: * modification, are permitted provided that the following conditions are met:
06: *
07: * - Redistributions of source code must retain the above copyright notice,
08: * this list of conditions and the following disclaimer.
09: *
10: * - Redistributions in binary form must reproduce the above copyright notice,
11: * this list of conditions and the following disclaimer in the documentation
12: * and/or other materials provided with the distribution.
13: *
14: * - Neither the name of intarsys nor the names of its contributors may be used
15: * to endorse or promote products derived from this software without specific
16: * prior written permission.
17: *
18: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19: * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21: * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
22: * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28: * POSSIBILITY OF SUCH DAMAGE.
29: */
30: package de.intarsys.pdf.pd;
31:
32: import de.intarsys.pdf.cos.COSBasedObject;
33: import de.intarsys.pdf.cos.COSName;
34: import de.intarsys.pdf.cos.COSObject;
35:
36: /**
37: * An abstract implementation of the strategy for computing a signature.
38: *
39: */
40: public class PDTransformMethod extends PDObject {
41: /**
42: * The meta class implementation
43: */
44: public static class MetaClass extends PDObject.MetaClass {
45: protected MetaClass(Class instanceClass) {
46: super (instanceClass);
47: }
48:
49: public Class getRootClass() {
50: return PDTransformMethod.class;
51: }
52:
53: /*
54: * (non-Javadoc)
55: *
56: * @see de.intarsys.pdf.cos.COSBasedObject.MetaClass#doCreateCOSBasedObject(de.intarsys.pdf.cos.COSObject)
57: */
58: protected COSBasedObject doCreateCOSBasedObject(COSObject object) {
59: return getSingleton((COSName) object);
60: }
61: }
62:
63: public static final COSName DK_DocMDP = COSName.constant("DocMDP");
64:
65: public static final COSName DK_UR = COSName.constant("UR");
66:
67: public static final COSName DK_FieldMDP = COSName
68: .constant("FieldMDP");
69:
70: public static final COSName DK_Identity = COSName
71: .constant("Identity");
72:
73: /** The meta class instance */
74: public static final MetaClass META = new MetaClass(MetaClass.class
75: .getDeclaringClass());
76:
77: protected PDTransformMethod() {
78: super (null);
79: }
80:
81: public static PDTransformMethod getSingleton(COSName name) {
82: if (DK_DocMDP.equals(name)) {
83: return PDTransformMethodDocMDP.SINGLETON;
84: } else if (DK_UR.equals(name)) {
85: return PDTransformMethodUR.SINGLETON;
86: } else if (DK_FieldMDP.equals(name)) {
87: return PDTransformMethodFieldMDP.SINGLETON;
88: } else if (DK_Identity.equals(name)) {
89: return PDTransformMethodIdentity.SINGLETON;
90: } else {
91: return null;
92: }
93: }
94: }
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