1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    * Permission is hereby granted, free of charge, to any person obtaining a copy
5    * of this software and associated documentation files (the "Software"), to deal
6    * in the Software without restriction, including without limitation the rights
7    * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8    * copies of the Software, and to permit persons to whom the Software is
9    * furnished to do so, subject to the following conditions:
10   *
11   * The above copyright notice and this permission notice shall be included in
12   * all copies or substantial portions of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portal.service.persistence;
24  
25  import com.liferay.portal.kernel.dao.orm.ORMException;
26  import com.liferay.portal.kernel.dao.orm.Session;
27  import com.liferay.portal.kernel.util.InitialThreadLocal;
28  import com.liferay.portal.model.BaseModel;
29  import com.liferay.portal.util.PropsValues;
30  
31  /**
32   * <a href="BatchSessionImpl.java.html"><b><i>View Source</i></b></a>
33   *
34   * @author Raymond Augé
35   * @author Brian Wing Shun Chan
36   *
37   */
38  public class BatchSessionImpl implements BatchSession {
39  
40      public boolean isEnabled() {
41          return _enabled.get();
42      }
43  
44      public void setEnabled(boolean enabled) {
45          _enabled.set(enabled);
46      }
47  
48      public void update(Session session, BaseModel<?> model, boolean merge)
49          throws ORMException {
50  
51          if (merge || model.isCachedModel()) {
52              session.merge(model);
53          }
54          else {
55              boolean contains = false;
56  
57              if (isEnabled()) {
58                  Object obj = session.get(
59                      model.getClass(), model.getPrimaryKeyObj());
60  
61                  if ((obj != null) && obj.equals(model)) {
62                      contains = true;
63                  }
64              }
65  
66              if (model.isNew()) {
67                  session.save(model);
68              }
69              else if (!contains && !session.contains(model)) {
70                  session.saveOrUpdate(model);
71              }
72          }
73  
74          if (!isEnabled()) {
75              session.flush();
76  
77              return;
78          }
79  
80          if ((_counter.get() % PropsValues.HIBERNATE_JDBC_BATCH_SIZE) == 0) {
81              session.flush();
82              session.clear();
83          }
84  
85          _counter.set(_counter.get() + 1);
86      }
87  
88      private static final Long _INITIAL_COUNTER = new Long(1);
89  
90      private static ThreadLocal<Long> _counter =
91          new InitialThreadLocal<Long>(_INITIAL_COUNTER);
92      private static ThreadLocal<Boolean> _enabled =
93          new InitialThreadLocal<Boolean>(Boolean.FALSE);
94  
95  }