1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    * The contents of this file are subject to the terms of the Liferay Enterprise
5    * Subscription License ("License"). You may not use this file except in
6    * compliance with the License. You can obtain a copy of the License by
7    * contacting Liferay, Inc. See the License for the specific language governing
8    * permissions and limitations under the License, including but not limited to
9    * distribution rights of the Software.
10   *
11   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
12   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
13   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
14   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
15   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
16   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
17   * SOFTWARE.
18   */
19  
20  package com.liferay.portal.service.persistence;
21  
22  import com.liferay.portal.kernel.dao.orm.ORMException;
23  import com.liferay.portal.kernel.dao.orm.Session;
24  import com.liferay.portal.kernel.util.InitialThreadLocal;
25  import com.liferay.portal.model.BaseModel;
26  import com.liferay.portal.util.PropsValues;
27  
28  /**
29   * <a href="BatchSessionImpl.java.html"><b><i>View Source</i></b></a>
30   *
31   * @author Raymond Augé
32   * @author Brian Wing Shun Chan
33   *
34   */
35  public class BatchSessionImpl implements BatchSession {
36  
37      public boolean isEnabled() {
38          return _enabled.get();
39      }
40  
41      public void setEnabled(boolean enabled) {
42          _enabled.set(enabled);
43      }
44  
45      public void update(Session session, BaseModel<?> model, boolean merge)
46          throws ORMException {
47  
48          if (merge || model.isCachedModel()) {
49              session.merge(model);
50          }
51          else {
52              boolean contains = false;
53  
54              if (isEnabled()) {
55                  Object obj = session.get(
56                      model.getClass(), model.getPrimaryKeyObj());
57  
58                  if ((obj != null) && obj.equals(model)) {
59                      contains = true;
60                  }
61              }
62  
63              if (model.isNew()) {
64                  session.save(model);
65              }
66              else if (!contains && !session.contains(model)) {
67                  session.saveOrUpdate(model);
68              }
69          }
70  
71          if (!isEnabled()) {
72              session.flush();
73  
74              return;
75          }
76  
77          if ((_counter.get() % PropsValues.HIBERNATE_JDBC_BATCH_SIZE) == 0) {
78              session.flush();
79              session.clear();
80          }
81  
82          _counter.set(_counter.get() + 1);
83      }
84  
85      private static final Long _INITIAL_COUNTER = new Long(1);
86  
87      private static ThreadLocal<Long> _counter =
88          new InitialThreadLocal<Long>(_INITIAL_COUNTER);
89      private static ThreadLocal<Boolean> _enabled =
90          new InitialThreadLocal<Boolean>(Boolean.FALSE);
91  
92  }