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 the com.oreilly.servlet library, any library
22 * licensed under the Apache Software License, The Sun (tm) Java Advanced
23 * Imaging library (JAI), The Sun JIMI library (or with modified versions of
24 * the above that use the same license as the above), and distribute linked
25 * combinations including the two. You must obey the GNU General Public
26 * License in all respects for all of the code used other than the above
27 * mentioned libraries. If you modify this file, you may extend this exception
28 * to your version of the file, but you are not obligated to do so. If you do
29 * not wish to do so, delete this exception statement from your version.
32 package mir.producer.reader;
34 import java.util.HashMap;
35 import java.util.Iterator;
38 import java.util.Stack;
40 public class ScriptedProducerNodeTool {
42 public static Object getOrMakeMapValueForKey(Map aMap, Object aKey, Object aDefaultValue) {
43 if (aMap.containsKey(aKey))
44 return aMap.get(aKey);
46 aMap.put(aKey, aDefaultValue);
51 public static Stack getRunTimeStack(Map aProductionMap, String aDefinitionName) {
52 Map runtimeData = (Map) getOrMakeMapValueForKey(aProductionMap, ScriptedProducerNodeDefinition.SCRIPTED_PRODUCERNODE_RUNTIMEDATA_KEY, new HashMap());
53 runtimeData = (Map) getOrMakeMapValueForKey(runtimeData, aDefinitionName, new HashMap());
54 return (Stack) getOrMakeMapValueForKey(runtimeData, ScriptedProducerNodeDefinition.SCRIPTED_PRODUCERNODE_RUNTIMESTACK_KEY, new Stack());
57 public static void pushNodeParameterValues(Map aProductionMap, String aDefinitionName, Map aNodeParameterValues) {
58 Stack runtimeStack = getRunTimeStack(aProductionMap, aDefinitionName);
59 runtimeStack.push(aNodeParameterValues);
62 public static void popNodeParameterValues(Map aProductionMap, String aDefinitionName) {
63 Stack runtimeStack = getRunTimeStack(aProductionMap, aDefinitionName);
67 public static void saveMapValues(Map aDestination, Map aSource, Set aKeys) {
68 Iterator i = aKeys.iterator();
71 Object key = i.next();
72 if (aSource.containsKey(key))
73 aDestination.put(key, aSource.get(key));
77 public static void restoreMapValues(Map aMap, Set aKeys, Map aSavedValues) {
78 Iterator i = aKeys.iterator();
81 Object key = i.next();
82 if (aSavedValues.containsKey(key))
83 aMap.put(key, aSavedValues.get(key));