2 * Copyright (C) 2001, 2002 The Mir-coders group
4 * This file is part of Mir.
6 * Mir 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 of the License, or
9 * (at your option) any later version.
11 * Mir is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with Mir; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 * In addition, as a special exception, The Mir-coders gives permission to link
21 * the code of this program with any library licensed under the Apache Software License,
22 * The Sun (tm) Java Advanced Imaging library (JAI), The Sun JIMI library
23 * (or with modified versions of the above that use the same license as the above),
24 * and distribute linked combinations including the two. You must obey the
25 * GNU General Public License in all respects for all of the code used other than
26 * the above mentioned libraries. If you modify this file, you may extend this
27 * exception to your version of the file, but you are not obligated to do so.
28 * If you do not wish to do so, delete this exception statement from your version.
30 package mir.producer.reader;
32 import java.util.HashMap;
33 import java.util.Iterator;
36 import java.util.Stack;
38 public class ScriptedProducerNodeTool {
40 public static Object getOrMakeMapValueForKey(Map aMap, Object aKey, Object aDefaultValue) {
41 if (aMap.containsKey(aKey))
42 return aMap.get(aKey);
44 aMap.put(aKey, aDefaultValue);
49 public static Stack getRunTimeStack(Map aProductionMap, String aDefinitionName) {
50 Map runtimeData = (Map) getOrMakeMapValueForKey(aProductionMap, ScriptedProducerNodeDefinition.SCRIPTED_PRODUCERNODE_RUNTIMEDATA_KEY, new HashMap());
51 runtimeData = (Map) getOrMakeMapValueForKey(runtimeData, aDefinitionName, new HashMap());
52 return (Stack) getOrMakeMapValueForKey(runtimeData, ScriptedProducerNodeDefinition.SCRIPTED_PRODUCERNODE_RUNTIMESTACK_KEY, new Stack());
55 public static void pushNodeParameterValues(Map aProductionMap, String aDefinitionName, Map aNodeParameterValues) {
56 Stack runtimeStack = getRunTimeStack(aProductionMap, aDefinitionName);
57 runtimeStack.push(aNodeParameterValues);
60 public static void popNodeParameterValues(Map aProductionMap, String aDefinitionName) {
61 Stack runtimeStack = getRunTimeStack(aProductionMap, aDefinitionName);
65 public static void saveMapValues(Map aDestination, Map aSource, Set aKeys) {
66 Iterator i = aKeys.iterator();
69 Object key = i.next();
70 if (aSource.containsKey(key))
71 aDestination.put(key, aSource.get(key));
75 public static void restoreMapValues(Map aMap, Set aKeys, Map aSavedValues) {
76 Iterator i = aKeys.iterator();
79 Object key = i.next();
80 if (aSavedValues.containsKey(key))
81 aMap.put(key, aSavedValues.get(key));