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.util;
21  
22  import com.liferay.portal.kernel.util.InstancePool;
23  import com.liferay.portal.kernel.util.Validator;
24  
25  /**
26   * <a href="LayoutCloneFactory.java.html"><b><i>View Source</i></b></a>
27   *
28   * @author Brian Wing Shun Chan
29   *
30   */
31  public class LayoutCloneFactory {
32  
33      public static LayoutClone getInstance() {
34          if (_layoutClone == null) {
35              if (Validator.isNotNull(PropsValues.LAYOUT_CLONE_IMPL)) {
36                  _layoutClone = (LayoutClone)InstancePool.get(
37                      PropsValues.LAYOUT_CLONE_IMPL);
38              }
39          }
40  
41          return _layoutClone;
42      }
43  
44      private static LayoutClone _layoutClone;
45  
46  }