1   /**
2    * Copyright (c) 2000-2008 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.tags.service.persistence;
24  
25  import com.liferay.portal.SystemException;
26  import com.liferay.portal.kernel.util.GetterUtil;
27  import com.liferay.portal.kernel.util.StringMaker;
28  import com.liferay.portal.kernel.util.StringPool;
29  import com.liferay.portal.kernel.util.StringUtil;
30  import com.liferay.portal.spring.hibernate.CustomSQLUtil;
31  import com.liferay.portal.spring.hibernate.HibernateUtil;
32  import com.liferay.portlet.tags.model.impl.TagsEntryImpl;
33  import com.liferay.util.dao.hibernate.QueryPos;
34  import com.liferay.util.dao.hibernate.QueryUtil;
35  
36  import java.util.Iterator;
37  import java.util.List;
38  
39  import org.hibernate.Hibernate;
40  import org.hibernate.SQLQuery;
41  import org.hibernate.Session;
42  
43  /**
44   * <a href="TagsEntryFinderImpl.java.html"><b><i>View Source</i></b></a>
45   *
46   * @author Brian Wing Shun Chan
47   *
48   */
49  public class TagsEntryFinderImpl implements TagsEntryFinder {
50  
51      public static String COUNT_BY_C_N_P =
52          TagsEntryFinder.class.getName() + ".countByC_N_P";
53  
54      public static String FIND_BY_C_N_P =
55          TagsEntryFinder.class.getName() + ".findByC_N_P";
56  
57      public int countByC_N_P(long companyId, String name, String[] properties)
58          throws SystemException {
59  
60          Session session = null;
61  
62          try {
63              session = HibernateUtil.openSession();
64  
65              String sql = CustomSQLUtil.get(COUNT_BY_C_N_P);
66  
67              sql = StringUtil.replace(sql, "[$JOIN$]", getJoin(properties));
68  
69              SQLQuery q = session.createSQLQuery(sql);
70  
71              q.addScalar(HibernateUtil.getCountColumnName(), Hibernate.LONG);
72  
73              QueryPos qPos = QueryPos.getInstance(q);
74  
75              setJoin(qPos, properties);
76              qPos.add(companyId);
77              qPos.add(name);
78              qPos.add(name);
79  
80              Iterator itr = q.list().iterator();
81  
82              if (itr.hasNext()) {
83                  Long count = (Long)itr.next();
84  
85                  if (count != null) {
86                      return count.intValue();
87                  }
88              }
89  
90              return 0;
91          }
92          catch (Exception e) {
93              throw new SystemException(e);
94          }
95          finally {
96              HibernateUtil.closeSession(session);
97          }
98      }
99  
100     public List findByC_N_P(long companyId, String name, String[] properties)
101         throws SystemException {
102 
103         return findByC_N_P(
104             companyId, name, properties, QueryUtil.ALL_POS, QueryUtil.ALL_POS);
105     }
106 
107     public List findByC_N_P(
108             long companyId, String name, String[] properties, int begin,
109             int end)
110         throws SystemException {
111 
112         Session session = null;
113 
114         try {
115             session = HibernateUtil.openSession();
116 
117             String sql = CustomSQLUtil.get(FIND_BY_C_N_P);
118 
119             sql = StringUtil.replace(sql, "[$JOIN$]", getJoin(properties));
120 
121             SQLQuery q = session.createSQLQuery(sql);
122 
123             q.addEntity("TagsEntry", TagsEntryImpl.class);
124 
125             QueryPos qPos = QueryPos.getInstance(q);
126 
127             setJoin(qPos, properties);
128             qPos.add(companyId);
129             qPos.add(name);
130             qPos.add(name);
131 
132             return QueryUtil.list(q, HibernateUtil.getDialect(), begin, end);
133         }
134         catch (Exception e) {
135             throw new SystemException(e);
136         }
137         finally {
138             HibernateUtil.closeSession(session);
139         }
140     }
141 
142     protected String getJoin(String[] properties) {
143         if (properties.length == 0) {
144             return StringPool.BLANK;
145         }
146         else {
147             StringMaker sm = new StringMaker();
148 
149             sm.append(" INNER JOIN TagsProperty ON ");
150             sm.append(" (TagsProperty.entryId = TagsEntry.entryId) AND ");
151 
152             for (int i = 0; i < properties.length; i++) {
153                 sm.append("(TagsProperty.key_ = ? AND ");
154                 sm.append("TagsProperty.value = ?) ");
155 
156                 if ((i + 1) < properties.length) {
157                     sm.append(" AND ");
158                 }
159             }
160 
161             return sm.toString();
162         }
163     }
164 
165     protected void setJoin(QueryPos qPos, String[] properties) {
166         for (int i = 0; i < properties.length; i++) {
167             String[] property = StringUtil.split(
168                 properties[i], StringPool.COLON);
169 
170             String key = StringPool.BLANK;
171 
172             if (property.length > 0) {
173                 key = GetterUtil.getString(property[0]);
174             }
175 
176             String value = StringPool.BLANK;
177 
178             if (property.length > 1) {
179                 value = GetterUtil.getString(property[1]);
180             }
181 
182             qPos.add(key);
183             qPos.add(value);
184         }
185     }
186 
187 }