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.portlet.documentlibrary.util.comparator;
21  
22  import com.liferay.portal.kernel.util.OrderByComparator;
23  import com.liferay.portlet.documentlibrary.model.DLFileEntry;
24  
25  /**
26   * <a href="FileEntryReadCountComparator.java.html"><b><i>View Source</i></b>
27   * </a>
28   *
29   * @author Brian Wing Shun Chan
30   *
31   */
32  public class FileEntryReadCountComparator extends OrderByComparator {
33  
34      public static String ORDER_BY_ASC = "readCount ASC";
35  
36      public static String ORDER_BY_DESC = "readCount DESC";
37  
38      public FileEntryReadCountComparator() {
39          this(false);
40      }
41  
42      public FileEntryReadCountComparator(boolean asc) {
43          _asc = asc;
44      }
45  
46      public int compare(Object obj1, Object obj2) {
47          DLFileEntry fileEntry1 = (DLFileEntry)obj1;
48          DLFileEntry fileEntry2 = (DLFileEntry)obj2;
49  
50          int value = 0;
51  
52          if (fileEntry1.getReadCount() < fileEntry2.getReadCount()) {
53              value = -1;
54          }
55          else if (fileEntry1.getReadCount() > fileEntry2.getReadCount()) {
56              value = 1;
57          }
58  
59          if (_asc) {
60              return value;
61          }
62          else {
63              return -value;
64          }
65      }
66  
67      public String getOrderBy() {
68          if (_asc) {
69              return ORDER_BY_ASC;
70          }
71          else {
72              return ORDER_BY_DESC;
73          }
74      }
75  
76      private boolean _asc;
77  
78  }