// Copyright 2012 Citrix Systems, Inc. Licensed under the
// Apache License, Version 2.0 (the "License"); you may not use this
// file except in compliance with the License. Citrix Systems, Inc.
// reserves all rights not expressly granted by 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.
//
// Automatically generated by addcopyright.py at 04/03/2012
package com.cloud.uuididentity.dao;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
import java.util.UUID;
import javax.ejb.Local;
import org.apache.log4j.Logger;
import com.cloud.api.IdentityMapper;
import com.cloud.exception.InvalidParameterValueException;
import com.cloud.utils.db.DB;
import com.cloud.utils.db.GenericDaoBase;
import com.cloud.utils.db.Transaction;
@Local(value={IdentityDao.class})
public class IdentityDaoImpl extends GenericDaoBase<IdentityVO, Long> implements IdentityDao {
private static final Logger s_logger = Logger.getLogger(IdentityDaoImpl.class);
public IdentityDaoImpl() {
}
@DB
public Long getIdentityId(IdentityMapper mapper, String identityString) {
assert(mapper.entityTableName() != null);
return getIdentityId(mapper.entityTableName(), identityString);
}
@DB
public Long getIdentityId(String tableName, String identityString) {
assert(tableName != null);
assert(identityString != null);
PreparedStatement pstmt = null;
Transaction txn = Transaction.open(Transaction.CLOUD_DB);
try {
try {
pstmt = txn.prepareAutoCloseStatement(
String.format("SELECT id FROM `%s` WHERE id=? OR uuid=?", tableName)
// TODO : after graceful period, use following line turn on more secure check
// String.format("SELECT id FROM %s WHERE (id=? AND uuid IS NULL) OR uuid=?", mapper.entityTableName())
);
long id = 0;
try {
// TODO : use regular expression to determine
id = Long.parseLong(identityString);
} catch(NumberFormatException e) {
// this could happen when it is a uuid string, so catch and ignore it
}
pstmt.setLong(1, id);
pstmt.setString(2, identityString);
ResultSet rs = pstmt.executeQuery();
if(rs.next()) {
return rs.getLong(1);
} else {
if(id == -1L)
return id;
throw new InvalidParameterValueException("Object " + tableName + "(uuid: " + identityString + ") does not exist.");
}
} catch (SQLException e) {
s_logger.error("Unexpected exception ", e);
}
} finally {
txn.close();
}
return null;
}
@DB
public String getIdentityUuid(String tableName, String identityString) {
assert(tableName != null);
assert(identityString != null);
PreparedStatement pstmt = null;
Transaction txn = Transaction.open(Transaction.CLOUD_DB);
try {
try {
pstmt = txn.prepareAutoCloseStatement(
String.format("SELECT uuid FROM `%s` WHERE id=? OR uuid=?", tableName)
// String.format("SELECT uuid FROM %s WHERE (id=? AND uuid IS NULL) OR uuid=?", tableName)
);
long id = 0;
try {
// TODO : use regular expression to determine
id = Long.parseLong(identityString);
} catch(NumberFormatException e) {
// this could happen when it is a uuid string, so catch and ignore it
}
pstmt.setLong(1, id);
pstmt.setString(2, identityString);
ResultSet rs = pstmt.executeQuery();
if(rs.next()) {
String uuid = rs.getString(1);
if(uuid != null && !uuid.isEmpty())
return uuid;
return identityString;
}
} catch (SQLException e) {
s_logger.error("Unexpected exception ", e);
}
} finally {
txn.close();
}
return identityString;
}
@DB
public void initializeDefaultUuid(String tableName) {
assert(tableName != null);
List<Long> l = getNullUuidRecords(tableName);
Transaction txn = Transaction.open(Transaction.CLOUD_DB);
try {
try {
txn.start();
for(Long id : l) {
setInitialUuid(tableName, id);
}
txn.commit();
} catch (SQLException e) {
txn.rollback();
s_logger.error("Unexpected exception ", e);
}
} finally {
txn.close();
}
}
@DB
List<Long> getNullUuidRecords(String tableName) {
List<Long> l = new ArrayList<Long>();
PreparedStatement pstmt = null;
Transaction txn = Transaction.open(Transaction.CLOUD_DB);
try {
try {
pstmt = txn.prepareAutoCloseStatement(
String.format("SELECT id FROM `%s` WHERE uuid IS NULL", tableName)
);
ResultSet rs = pstmt.executeQuery();
while(rs.next()) {
l.add(rs.getLong(1));
}
} catch (SQLException e) {
s_logger.error("Unexpected exception ", e);
}
} finally {
txn.close();
}
return l;
}
@DB
void setInitialUuid(String tableName, long id) throws SQLException {
Transaction txn = Transaction.currentTxn();
PreparedStatement pstmtUpdate = null;
pstmtUpdate = txn.prepareAutoCloseStatement(
String.format("UPDATE `%s` SET uuid=? WHERE id=?", tableName)
);
pstmtUpdate.setString(1, UUID.randomUUID().toString());
pstmtUpdate.setLong(2, id);
pstmtUpdate.executeUpdate();
}
}