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 mircoders.producer;
38 import mir.producer.*;
40 import mir.entity.adapter.*;
43 import mircoders.entity.*;
44 import mircoders.module.*;
45 import mircoders.storage.*;
48 public class ContentModifyingProducerNode implements ProducerNode {
49 private String contentKey;
50 private String fieldNameExpression;
51 private String valueExpression;
53 public ContentModifyingProducerNode(String aContentKey, String aFieldNameExpression, String aValueExpression) {
54 contentKey = aContentKey;
55 fieldNameExpression = aFieldNameExpression;
56 valueExpression = aValueExpression;
59 public void produce(Map aValueMap, String aVerb, LoggerWrapper aLogger) {
66 ModuleContent contentModule = new ModuleContent(DatabaseContent.getInstance());
68 data = ParameterExpander.findValueForKey( aValueMap, contentKey );
70 if (! (data instanceof EntityAdapter)) {
71 throw new ProducerFailure("ContentModifyingProducerNode: value of '"+contentKey+"' is not an EntityAdapter, but an " + data.getClass().getName(), null);
74 entity = ((EntityAdapter) data).getEntity();
75 if (! (entity instanceof EntityContent)) {
76 throw new ProducerFailure("ContentModifyingProducerNode: value of '"+contentKey+"' is not a content EntityAdapter, but a " + entity.getClass().getName() + " adapter", null);
79 value = ParameterExpander.expandExpression(aValueMap, valueExpression);
80 fieldName = ParameterExpander.expandExpression(aValueMap, fieldNameExpression);
82 entity.setValueForProperty("is_produced", "0");
83 entity.setValueForProperty(fieldName, value);
86 aLogger.info(" Modified content " + entity.get("id") + ": " + fieldName + " = " + value );
89 aLogger.error("Error while modifying content: " + t.getMessage());