01: /*
02: * JBoss, Home of Professional Open Source
03: * Copyright 2005, JBoss Inc., and individual contributors as indicated
04: * by the @authors tag. See the copyright.txt in the distribution for a
05: * full listing of individual contributors.
06: *
07: * This is free software; you can redistribute it and/or modify it
08: * under the terms of the GNU Lesser General Public License as
09: * published by the Free Software Foundation; either version 2.1 of
10: * the License, or (at your option) any later version.
11: *
12: * This software is distributed in the hope that it will be useful,
13: * but WITHOUT ANY WARRANTY; without even the implied warranty of
14: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15: * Lesser General Public License for more details.
16: *
17: * You should have received a copy of the GNU Lesser General Public
18: * License along with this software; if not, write to the Free
19: * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20: * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
21: */
22: package org.jbpm.svc.save;
23:
24: import java.util.Collection;
25: import java.util.HashSet;
26: import java.util.Iterator;
27: import java.util.Set;
28:
29: import org.apache.commons.logging.Log;
30: import org.apache.commons.logging.LogFactory;
31: import org.jbpm.JbpmContext;
32: import org.jbpm.graph.exe.ProcessInstance;
33:
34: public class CascadeSaveOperation implements SaveOperation {
35:
36: private static final long serialVersionUID = 1L;
37:
38: public void save(ProcessInstance processInstance,
39: JbpmContext jbpmContext) {
40: log.debug("cascading save of '" + processInstance + "'");
41: Set cascadedProcessInstances = new HashSet();
42: cascadedProcessInstances.add(processInstance);
43: cascadeSave(processInstance.removeCascadeProcessInstances(),
44: jbpmContext, cascadedProcessInstances);
45: }
46:
47: void cascadeSave(Collection cascadeProcessInstances,
48: JbpmContext jbpmContext, Set cascadedProcessInstances) {
49: if (cascadeProcessInstances != null) {
50: Iterator iter = cascadeProcessInstances.iterator();
51: while (iter.hasNext()) {
52: ProcessInstance cascadeInstance = (ProcessInstance) iter
53: .next();
54: saveCascadeInstance(cascadeInstance, jbpmContext,
55: cascadedProcessInstances);
56: }
57: }
58: }
59:
60: void saveCascadeInstance(ProcessInstance cascadeInstance,
61: JbpmContext jbpmContext, Set cascadedProcessInstances) {
62: if (!cascadedProcessInstances.contains(cascadeInstance)) {
63: Collection cascadeProcessInstances = cascadeInstance
64: .removeCascadeProcessInstances();
65: log.debug("cascading save to process instance '"
66: + cascadeInstance + "'");
67: jbpmContext.save(cascadeInstance);
68: cascadedProcessInstances.add(cascadeInstance);
69: cascadeSave(cascadeProcessInstances, jbpmContext,
70: cascadedProcessInstances);
71: }
72: }
73:
74: private static Log log = LogFactory
75: .getLog(CascadeSaveOperation.class);
76: }
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