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.
35 import mir.entity.adapter.EntityAdapterModel;
36 import mir.entity.adapter.EntityIteratorAdapter;
37 import mir.log.LoggerWrapper;
40 public class ListEnumeratingProducerNode extends ProducerNodeDecorator {
42 private String listExpression;
44 public ListEnumeratingProducerNode( String aKey, String aListExpression, ProducerNode aSubNode) {
48 listExpression = aListExpression;
51 public void produce(Map aValueMap, String aVerb, LoggerWrapper aLogger) throws ProducerFailure, ProducerExc {
56 list = ParameterExpander.evaluateExpression(aValueMap, listExpression);
58 if (list instanceof Collection)
59 browser = ( (Collection) list).iterator();
60 else if (list instanceof Iterator)
61 browser = (Iterator) list;
63 throw new ProducerExc("Can't enumarate a " + list.getClass().getName());
65 if (browser instanceof RewindableIterator) {
66 ( (RewindableIterator) browser).rewind();
69 while (browser.hasNext() && !isAborted(aValueMap)) {
70 ParameterExpander.setValueForKey(aValueMap, key, browser.next());
71 super.produce(aValueMap, aVerb, aLogger);
76 aLogger.error("Exception occurred inside an ListEnumeratingProducerNode: " + t.getMessage());