/* Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.activiti.engine.impl.persistence.entity;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.activiti.engine.impl.persistence.AbstractManager;


/**
 * @author Tom Baeyens
 * @author Saeid Mirzaei
 */
public class IdentityLinkManager extends AbstractManager {

  public void deleteIdentityLink(IdentityLinkEntity identityLink) {
    getDbSqlSession().delete(identityLink);
  }
  
  @SuppressWarnings("unchecked")
  public List<IdentityLinkEntity> findIdentityLinksByTaskId(String taskId) {
    return getDbSqlSession().selectList("selectIdentityLinksByTask", taskId);
  }
  
  @SuppressWarnings("unchecked")
  public List<IdentityLinkEntity> findIdentityLinksByProcessDefinitionId(String processDefinitionId) {
    return getDbSqlSession().selectList("selectIdentityLinksByProcessDefinition", processDefinitionId);
  }

  @SuppressWarnings("unchecked")
  public List<IdentityLinkEntity> findIdentityLinkByTaskUserGroupAndType(String taskId, String userId, String groupId, String type) {
    Map<String, String> parameters = new HashMap<String, String>();
    parameters.put("taskId", taskId);
    parameters.put("userId", userId);
    parameters.put("groupId", groupId);
    parameters.put("type", type);
    return getDbSqlSession().selectList("selectIdentityLinkByTaskUserGroupAndType", parameters);
  }
  
  @SuppressWarnings("unchecked")
  public List<IdentityLinkEntity> findIdentityLinkByProcessDefinitionUserAndGroup(String processDefinitionId, String userId, String groupId) {
    Map<String, String> parameters = new HashMap<String, String>();
    parameters.put("processDefinitionId", processDefinitionId);
    parameters.put("userId", userId);
    parameters.put("groupId", groupId);
    return getDbSqlSession().selectList("selectIdentityLinkByProcessDefinitionUserAndGroup", parameters);
  }

  public void deleteIdentityLinksByTaskId(String taskId) {
    List<IdentityLinkEntity> identityLinks = findIdentityLinksByTaskId(taskId);
    for (IdentityLinkEntity identityLink: identityLinks) {
      deleteIdentityLink(identityLink);
    }
  }
  
  public void deleteIdentityLinksByProcDef(String processDefId) {
    getDbSqlSession().delete("deleteIdentityLinkByProcDef", processDefId);
  }
  
}