001
014
015 package com.liferay.portal.kernel.dao.orm;
016
017 import com.liferay.portal.kernel.exception.PortalException;
018 import com.liferay.portal.kernel.exception.SystemException;
019 import com.liferay.portal.kernel.search.Indexer;
020 import com.liferay.portal.service.BaseLocalService;
021
022 import java.lang.reflect.InvocationTargetException;
023 import java.lang.reflect.Method;
024
025 import java.util.List;
026
027
030 public abstract class BaseActionableDynamicQuery
031 implements ActionableDynamicQuery {
032
033 @Override
034 public void performActions() throws PortalException, SystemException {
035 DynamicQuery dynamicQuery = DynamicQueryFactoryUtil.forClass(
036 _clazz, _classLoader);
037
038 Projection minPrimaryKeyProjection = ProjectionFactoryUtil.min(
039 _primaryKeyPropertyName);
040 Projection maxPrimaryKeyProjection = ProjectionFactoryUtil.max(
041 _primaryKeyPropertyName);
042
043 ProjectionList projectionList = ProjectionFactoryUtil.projectionList();
044
045 projectionList.add(minPrimaryKeyProjection);
046 projectionList.add(maxPrimaryKeyProjection);
047
048 dynamicQuery.setProjection(projectionList);
049
050 addDefaultCriteria(dynamicQuery);
051 addCriteria(dynamicQuery);
052
053 List<Object[]> results = (List<Object[]>)executeDynamicQuery(
054 _dynamicQueryMethod, dynamicQuery);
055
056 Object[] minAndMaxPrimaryKeys = results.get(0);
057
058 if ((minAndMaxPrimaryKeys[0] == null) ||
059 (minAndMaxPrimaryKeys[1] == null)) {
060
061 return;
062 }
063
064 long minPrimaryKey = (Long)minAndMaxPrimaryKeys[0];
065 long maxPrimaryKey = (Long)minAndMaxPrimaryKeys[1];
066
067 long startPrimaryKey = minPrimaryKey;
068 long endPrimaryKey = startPrimaryKey + _interval;
069
070 while (startPrimaryKey <= maxPrimaryKey) {
071 performActions(startPrimaryKey, endPrimaryKey);
072
073 startPrimaryKey = endPrimaryKey;
074 endPrimaryKey += _interval;
075 }
076 }
077
078 public void performActions(long startPrimaryKey, long endPrimaryKey)
079 throws PortalException, SystemException {
080
081 DynamicQuery dynamicQuery = DynamicQueryFactoryUtil.forClass(
082 _clazz, _classLoader);
083
084 Property property = PropertyFactoryUtil.forName(
085 _primaryKeyPropertyName);
086
087 dynamicQuery.add(property.ge(startPrimaryKey));
088 dynamicQuery.add(property.lt(endPrimaryKey));
089
090 addDefaultCriteria(dynamicQuery);
091
092 addCriteria(dynamicQuery);
093
094 List<Object> objects = (List<Object>)executeDynamicQuery(
095 _dynamicQueryMethod, dynamicQuery);
096
097 for (Object object : objects) {
098 performAction(object);
099 }
100 }
101
102 @Override
103 public long performCount() throws PortalException, SystemException {
104 DynamicQuery dynamicQuery = DynamicQueryFactoryUtil.forClass(
105 _clazz, _classLoader);
106
107 addCriteria(dynamicQuery);
108 addDefaultCriteria(dynamicQuery);
109
110 return (Long)executeDynamicQuery(
111 _dynamicQueryCountMethod, dynamicQuery, getCountProjection());
112 }
113
114 @Override
115 public void setBaseLocalService(BaseLocalService baseLocalService)
116 throws SystemException {
117
118 _baseLocalService = baseLocalService;
119
120 Class<?> clazz = _baseLocalService.getClass();
121
122 try {
123 _dynamicQueryMethod = clazz.getMethod(
124 "dynamicQuery", DynamicQuery.class);
125 _dynamicQueryCountMethod = clazz.getMethod(
126 "dynamicQueryCount", DynamicQuery.class, Projection.class);
127 }
128 catch (NoSuchMethodException nsme) {
129 throw new SystemException(nsme);
130 }
131 }
132
133 @Override
134 public void setClass(Class<?> clazz) {
135 _clazz = clazz;
136 }
137
138 @Override
139 public void setClassLoader(ClassLoader classLoader) {
140 _classLoader = classLoader;
141 }
142
143 @Override
144 public void setCompanyId(long companyId) {
145 _companyId = companyId;
146 }
147
148 @Override
149 public void setGroupId(long groupId) {
150 _groupId = groupId;
151 }
152
153 @Override
154 public void setInterval(int interval) {
155 _interval = interval;
156 }
157
158 @Override
159 public void setPrimaryKeyPropertyName(String primaryKeyPropertyName) {
160 _primaryKeyPropertyName = primaryKeyPropertyName;
161 }
162
163 protected void addCriteria(DynamicQuery dynamicQuery) {
164 }
165
166 protected void addDefaultCriteria(DynamicQuery dynamicQuery) {
167 if (_companyId > 0) {
168 Property property = PropertyFactoryUtil.forName("companyId");
169
170 dynamicQuery.add(property.eq(_companyId));
171 }
172
173 if (_groupId > 0) {
174 Property property = PropertyFactoryUtil.forName("groupId");
175
176 dynamicQuery.add(property.eq(_groupId));
177 }
178 }
179
180 protected Object executeDynamicQuery(
181 Method dynamicQueryMethod, Object... arguments)
182 throws PortalException, SystemException {
183
184 try {
185 return dynamicQueryMethod.invoke(_baseLocalService, arguments);
186 }
187 catch (InvocationTargetException ite) {
188 Throwable throwable = ite.getCause();
189
190 if (throwable instanceof PortalException) {
191 throw (PortalException)throwable;
192 }
193 else if (throwable instanceof SystemException) {
194 throw (SystemException)throwable;
195 }
196
197 throw new SystemException(ite);
198 }
199 catch (Exception e) {
200 throw new SystemException(e);
201 }
202 }
203
204 protected Projection getCountProjection() {
205 return ProjectionFactoryUtil.rowCount();
206 }
207
208 protected abstract void performAction(Object object)
209 throws PortalException, SystemException;
210
211 private BaseLocalService _baseLocalService;
212 private ClassLoader _classLoader;
213 private Class<?> _clazz;
214 private long _companyId;
215 private Method _dynamicQueryCountMethod;
216 private Method _dynamicQueryMethod;
217 private long _groupId;
218 private int _interval = Indexer.DEFAULT_INTERVAL;
219 private String _primaryKeyPropertyName;
220
221 }