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.portlet.documentlibrary.service.persistence;
24  
25  import com.liferay.portal.SystemException;
26  import com.liferay.portal.kernel.dao.orm.QueryPos;
27  import com.liferay.portal.kernel.dao.orm.SQLQuery;
28  import com.liferay.portal.kernel.dao.orm.Session;
29  import com.liferay.portal.kernel.dao.orm.Type;
30  import com.liferay.portal.kernel.util.StringUtil;
31  import com.liferay.portal.service.persistence.impl.BasePersistenceImpl;
32  import com.liferay.portlet.documentlibrary.model.DLFileEntry;
33  import com.liferay.portlet.documentlibrary.model.impl.DLFileEntryImpl;
34  import com.liferay.util.dao.orm.CustomSQLUtil;
35  
36  import java.util.Iterator;
37  import java.util.List;
38  
39  /**
40   * <a href="DLFileEntryFinderImpl.java.html"><b><i>View Source</i></b></a>
41   *
42   * @author Brian Wing Shun Chan
43   *
44   */
45  public class DLFileEntryFinderImpl
46      extends BasePersistenceImpl implements DLFileEntryFinder {
47  
48      public static String COUNT_BY_FOLDER_IDS =
49          DLFileEntryFinder.class.getName() + ".countByFolderIds";
50  
51      public static String FIND_BY_NO_ASSETS =
52          DLFileEntryFinder.class.getName() + ".findByNoAssets";
53  
54      public int countByFolderIds(List<Long> folderIds) throws SystemException {
55          Session session = null;
56  
57          try {
58              session = openSession();
59  
60              String sql = CustomSQLUtil.get(COUNT_BY_FOLDER_IDS);
61  
62              sql = StringUtil.replace(
63                  sql, "[$FOLDER_ID$]", getFolderIds(folderIds));
64  
65              SQLQuery q = session.createSQLQuery(sql);
66  
67              q.addScalar(COUNT_COLUMN_NAME, Type.LONG);
68  
69              QueryPos qPos = QueryPos.getInstance(q);
70  
71              for (int i = 0; i < folderIds.size(); i++) {
72                  Long folderId = folderIds.get(i);
73  
74                  qPos.add(folderId);
75              }
76  
77              Iterator<Long> itr = q.list().iterator();
78  
79              if (itr.hasNext()) {
80                  Long count = itr.next();
81  
82                  if (count != null) {
83                      return count.intValue();
84                  }
85              }
86  
87              return 0;
88          }
89          catch (Exception e) {
90              throw new SystemException(e);
91          }
92          finally {
93              closeSession(session);
94          }
95      }
96  
97      public List<DLFileEntry> findByNoAssets() throws SystemException {
98          Session session = null;
99  
100         try {
101             session = openSession();
102 
103             String sql = CustomSQLUtil.get(FIND_BY_NO_ASSETS);
104 
105             SQLQuery q = session.createSQLQuery(sql);
106 
107             q.addEntity("DLFileEntry", DLFileEntryImpl.class);
108 
109             return q.list();
110         }
111         catch (Exception e) {
112             throw new SystemException(e);
113         }
114         finally {
115             closeSession(session);
116         }
117     }
118 
119     protected String getFolderIds(List<Long> folderIds) {
120         StringBuilder sb = new StringBuilder();
121 
122         for (int i = 0; i < folderIds.size(); i++) {
123             sb.append("folderId = ? ");
124 
125             if ((i + 1) != folderIds.size()) {
126                 sb.append("OR ");
127             }
128         }
129 
130         return sb.toString();
131     }
132 
133 }