public void init(int startIndex, int endIndex, String updateDate) throws SQLException {
if (connection == null || connection.isClosed()) {
connection = getConnection();
}
if (startIndex != 0 && endIndex != 0) {
bibQuery =
"SELECT * FROM OLE_DS_BIB_T WHERE BIB_ID BETWEEN "
+ startIndex
+ " AND "
+ endIndex
+ " ORDER BY BIB_ID";
} else if (StringUtils.isNotEmpty(updateDate)) {
updateDate = getDateStringForOracle(updateDate);
bibQuery = "SELECT * FROM OLE_DS_BIB_T where DATE_UPDATED > '" + updateDate + "'";
} else {
bibQuery = "SELECT * FROM OLE_DS_BIB_T ORDER BY BIB_ID";
}
if (!isStaffOnly) {
bibQuery = bibStaffOnly;
holdingsQuery = holdingsQuery + staffOnlyHoldings;
itemQuery = itemQuery + staffOnlyItem;
}
fetchCallNumberType();
fetchReceiptStatus();
fetchAuthenticationType();
fetchItemType();
fetchItemStatus();
fetchStatisticalSearchCode();
fetchExtentOfOwnershipType();
bibConnection = getConnection();
holdingsConnection = getConnection();
itemConnection = getConnection();
bibConnection.setAutoCommit(false);
bibStatement =
bibConnection.createStatement(ResultSet.TYPE_FORWARD_ONLY, ResultSet.CONCUR_READ_ONLY);
if (dbVendor.equalsIgnoreCase("oracle")) {
bibStatement.setFetchSize(1);
} else if (dbVendor.equalsIgnoreCase("mysql")) {
bibStatement.setFetchSize(Integer.MIN_VALUE);
}
bibResultSet = bibStatement.executeQuery(bibQuery);
holdingsPreparedStatement = holdingsConnection.prepareStatement(holdingsQuery);
itemPreparedStatement = itemConnection.prepareStatement(itemQuery);
String insertQuery =
"INSERT INTO OLE_DS_BIB_INFO_T(BIB_ID, BIB_ID_STR, TITLE, AUTHOR, PUBLISHER, ISXN) VALUES (?,?,?,?,?,?)";
bibInsertPreparedStatement = connection.prepareStatement(insertQuery);
String updateQuery =
"UPDATE OLE_DS_BIB_INFO_T SET TITLE=?, AUTHOR=?, PUBLISHER=?, ISXN=?, BIB_ID_STR=? WHERE BIB_ID=?";
bibUpdatePreparedStatement = connection.prepareStatement(updateQuery);
}
/**
* 获取对数据库的 连接
*
* @return
* @throws Exception
*/
public Connection getConn() throws Exception {
String driver = "com.mysql.jdbc.Driver";
String url = "jdbc:mysql://localhost:3306/fetchResults";
String user = "******";
String password = "******";
Class.forName(driver);
Connection conn = DriverManager.getConnection(url, user, password);
if (conn.isClosed()) System.out.println("False connecting to the Database!");
return conn;
}
/** 关闭连接 */
public static final void closeConnection() {
Connection conn = conns.get();
try {
if (conn != null && !conn.isClosed()) {
conn.setAutoCommit(true);
conn.close();
connectionContext.remove(Thread.currentThread().getId());
}
} catch (SQLException e) {
log.error("Unabled to close connection!!! ", e);
}
conns.set(null);
}
public Connection getConnection() {
try {
if (connection == null || connection.isClosed()) {
loadJdbcDriver();
connection =
DriverManager.getConnection(
GeneratorProperties.getRequiredProperty("jdbc.url"),
GeneratorProperties.getRequiredProperty("jdbc.username"),
GeneratorProperties.getProperty("jdbc.password"));
}
return connection;
} catch (SQLException e) {
throw new RuntimeException(e);
}
}
public static Connection getConnection(Connection c) throws Exception {
Connection conn = c;
if (c != null && !c.isClosed()) {
return c;
} else {
Class clazz = Class.forName("org.luciddb.jdbc.LucidDbLocalDriver");
LucidDbLocalDriver driver = (LucidDbLocalDriver) clazz.newInstance();
String urlPrefix = driver.getUrlPrefix();
Properties props = new Properties();
props.setProperty("user", "sa");
props.setProperty("password", "");
props.setProperty("requireExistingEngine", "true");
c = DriverManager.getConnection(urlPrefix, props);
}
return c;
}
public static final Connection getConnection() throws SQLException {
Connection conn = conns.get();
if (conn == null || conn.isClosed()) {
conn = _getConnection();
if (conn == null) throw new SQLException("Unabled to get connection.");
conns.set(conn);
// RequestContext ctx = RequestContext.get();
// connectionContext.put(
// Thread.currentThread().getId(),
// new ConnectionContext(new Exception(), (ctx != null) ? ctx
// .ip() : null, (ctx != null) ? ctx.uri() : null,
// (ctx != null) ? ctx.request().getParameterMap()
// : null));
}
return (show_sql && !Proxy.isProxyClass(conn.getClass()))
? new _DebugConnection(conn).getConnection()
: conn;
}
/**
* Fires a new connection event on all listeners.
*
* @param closed <code>true</code> if <code>close</code> has been called on the connection; <code>
* false</code> if the <code>sqlException</code> represents an error where the connection may
* not longer be used.
* @param sqlException the SQLException to pass to the listeners
*/
public synchronized void fireConnectionEvent(boolean closed, SQLException sqlException) {
if (listeners.size() > 0) {
ConnectionEvent connectionEvent = new ConnectionEvent(this, sqlException);
Iterator iterator = listeners.iterator();
while (iterator.hasNext()) {
ConnectionEventListener listener = (ConnectionEventListener) iterator.next();
if (closed) {
listener.connectionClosed(connectionEvent);
} else {
try {
if (connection == null || connection.isClosed()) {
listener.connectionErrorOccurred(connectionEvent);
}
} catch (SQLException ex) {
// Will never occur
}
}
}
}
}
/**
* @return Connection
* @roseuid 3F3A5FFD0338
*/
public Connection getConnection() throws EmanagerDatabaseException {
long connectionId;
Connection connection;
PooledConnection pooledConnection;
connection = null;
pooledConnection = null;
connectionId = InvalidConnectionId;
try {
synchronized (connectionPool) {
if (!connectionPool.isEmpty()) {
try {
boolean connectionClosed;
connectionClosed = false;
pooledConnection = (PooledConnection) connectionPool.remove(0);
connection = pooledConnection.getConnection();
connection.clearWarnings();
connectionId = getConnectionID(connection);
connectionClosed = connection.isClosed();
if (connectionId == InvalidConnectionId || connectionClosed == true) {
logger.debug("Pooled connection closed.");
connection = null;
}
} catch (SQLException sqe) {
logger.debug("Pooled connection closed.");
connection = null;
}
}
}
if (connection == null) {
logger.debug("Getting a new connection.");
pooledConnection = poolDataSource.getPooledConnection();
pooledConnection.addConnectionEventListener(this);
connection = pooledConnection.getConnection();
connection.clearWarnings();
connectionId = getConnectionID(connection);
}
} catch (SQLException sqe) {
String logString;
EmanagerDatabaseException ede;
logString =
EmanagerDatabaseStatusCode.UnableToGetPooledConnection.getStatusCodeDescription()
+ sqe.getMessage();
logger.error(logString);
ede =
new EmanagerDatabaseException(
EmanagerDatabaseStatusCode.UnableToGetPooledConnection, logString);
throw ede;
}
if (connectionId == InvalidConnectionId) {
EmanagerDatabaseException ede;
ede =
new EmanagerDatabaseException(
EmanagerDatabaseStatusCode.UnableToGetPooledConnection,
EmanagerDatabaseStatusCode.UnableToGetPooledConnection.getStatusCodeDescription());
throw ede;
}
logger.debug(
"\n*****************************"
+ "\nPooled Connection Init"
+ "\nCon ID:"
+ connectionId
+ "\nCon Object:"
+ pooledConnection
+ "\nPool Object:"
+ connection
+ "\n*****************************");
return connection;
}
public boolean isOpen() throws Exception {
if (!settings.getDatabaseSettings().getEnabled()) return false;
if ((connection == null) || connection.isClosed()) open();
return (connection != null ? !connection.isClosed() : false);
}
public void runReplicate() throws InterruptedException {
if (verbose) log.append("Started at " + Calendar.getInstance().getTime() + "\r\n");
Connection connectionFrom = null;
Connection connectionTo = null;
try {
connectionFrom = providerI.getConnection(dbFrom);
connectionTo = providerI.getConnection(dbTo);
PreparedStatement preparedStatementFrom = null;
PreparedStatement preparedStatementTo = null;
ResultSet resultSet = null;
for (Iterator<HashMap<String, String>> HashMapIterator = tables.iterator();
HashMapIterator.hasNext(); ) {
try {
HashMap<String, String> h = HashMapIterator.next();
String name = h.get("name");
String name2 = h.get("name2");
String where1 = h.get("where1");
String where2 = h.get("where2");
if (verbose)
log.append("Replicating " + dbFrom + "/" + name + " to " + dbTo + "/" + name2 + "\r\n");
preparedStatementFrom =
connectionFrom.prepareStatement("select * from " + name + " WHERE 1=1 " + where1);
boolean b = preparedStatementFrom.execute();
HashMap meta = new HashMap();
// 1. find all ids from DB1
ArrayList db1 = new ArrayList();
String nullMark = "____NULL";
if (b) {
resultSet = preparedStatementFrom.getResultSet();
ResultSetMetaData setMetaData = resultSet.getMetaData();
for (int i = 1; i <= setMetaData.getColumnCount(); i++) {
meta.put(
setMetaData.getColumnLabel(i).toLowerCase(), setMetaData.getColumnClassName(i));
}
while (resultSet.next()) {
HashMap results = new HashMap();
for (int i = 1; i <= setMetaData.getColumnCount(); i++) {
String columnName = setMetaData.getColumnLabel(i).toLowerCase();
Object o = resultSet.getObject(i);
if (o != null) {
results.put(columnName, o);
} else {
results.put(columnName + nullMark, nullMark);
}
}
db1.add(results);
}
resultSet.close();
} else {
log.append("Couldn't execute select from " + dbFrom + "/" + name + " /r/n");
return;
}
StringBuffer allIds = new StringBuffer();
HashMap records1 = new HashMap();
HashMap toInsert = new HashMap();
HashMap toUpdate = new HashMap();
for (Iterator iterator = db1.iterator(); iterator.hasNext(); ) {
HashMap record = (HashMap) iterator.next();
if (allIds.length() != 0) {
allIds.append(",");
}
allIds.append(record.get("id"));
records1.put(record.get("id"), record);
}
toInsert.putAll(records1);
// 2. find all ids to delete in DB2;
if (allIds.length() > 0) {
preparedStatementTo =
connectionTo.prepareStatement(
"delete from "
+ name2
+ " where id not in ("
+ allIds.toString()
+ ")"
+ where2);
if (verbose)
log.append(
"deleted from "
+ dbTo
+ "/"
+ name2
+ " "
+ preparedStatementTo.executeUpdate()
+ " records;\r\n");
} else {
if (verbose)
log.append(
"No records in "
+ dbFrom
+ "/"
+ name
+ ", nothing to delete in "
+ dbTo
+ "/"
+ name2
+ " ;\r\n");
}
// 3. find all ids from DB2;
preparedStatementTo =
connectionTo.prepareStatement("select * from " + name2 + " WHERE 1=1 " + where2);
b = preparedStatementTo.execute();
HashMap meta2 = new HashMap();
ArrayList db2 = new ArrayList();
if (b) {
resultSet = preparedStatementTo.getResultSet();
ResultSetMetaData setMetaData = resultSet.getMetaData();
for (int i = 1; i <= setMetaData.getColumnCount(); i++) {
meta2.put(
setMetaData.getColumnLabel(i).toLowerCase(), setMetaData.getColumnClassName(i));
}
while (resultSet.next()) {
HashMap results = new HashMap();
for (int i = 1; i <= setMetaData.getColumnCount(); i++) {
String columnName = setMetaData.getColumnLabel(i).toLowerCase();
Object o = resultSet.getObject(i);
if (o != null) {
results.put(columnName, o);
} else {
results.put(columnName + nullMark, nullMark);
}
}
db2.add(results);
}
} else {
log.append("Couldn't execute select from " + dbTo + "/" + name2 + " /r/n");
return;
}
// compare meta-data;
{
HashMap temp = new HashMap();
{
temp.putAll(meta);
Set set = meta2.keySet();
for (Iterator iteratorSet = set.iterator(); iteratorSet.hasNext(); ) {
Object o = iteratorSet.next();
if (meta.containsKey(o)) {
if (meta.get(o).equals(meta2.get(o))) {
temp.remove(o);
}
} else {
log.append("ERROR: Meta data not equals! \r\n");
log.append(o + "\t" + temp.get(o) + " not present in table " + name + "\r\n");
}
}
}
if (!temp.isEmpty()) {
log.append("ERROR: Meta data not equals! \r\n");
Set set = temp.keySet();
for (Iterator iteratorSet = set.iterator(); iteratorSet.hasNext(); ) {
Object o = iteratorSet.next();
log.append(o + "\t" + temp.get(o) + " != " + meta2.get(o) + "\r\n");
}
return;
}
}
for (Iterator iterator = db2.iterator(); iterator.hasNext(); ) {
HashMap db2Record = (HashMap) iterator.next();
if (toInsert.containsKey(db2Record.get("id"))) {
HashMap db1Record = (HashMap) toInsert.get(db2Record.get("id"));
boolean equal = true;
Set set = meta2.keySet();
for (Iterator iteratorSet = set.iterator(); equal && iteratorSet.hasNext(); ) {
String columnName2 = (String) iteratorSet.next();
if (db2Record.containsKey(columnName2 + nullMark)
|| db1Record.containsKey(columnName2 + nullMark)) {
equal =
db2Record.containsKey(columnName2 + nullMark)
&& db1Record.containsKey(columnName2 + nullMark);
} else {
// checking not-null;
equal = equalRecords(db1Record.get(columnName2), db2Record.get(columnName2));
}
}
if (!equal) {
toUpdate.put(db2Record.get("id"), toInsert.get(db2Record.get("id")));
}
toInsert.remove(db2Record.get("id"));
} else {
// this case shouldn't happen at all, since we've deleted all such records
}
}
log.append(
"Found "
+ toUpdate.size()
+ " to update, and "
+ toInsert.size()
+ " to insert.\r\n");
int totalUpdated = 0;
// 4. calculate all to update in DB2
if (!toUpdate.isEmpty()) {
Set set = toUpdate.keySet();
for (Iterator iteratorSet = set.iterator(); iteratorSet.hasNext(); ) {
StringBuffer sql = new StringBuffer();
Object id = iteratorSet.next();
HashMap r = (HashMap) toUpdate.get(id);
sql.append("UPDATE " + name2 + " SET ");
StringBuffer values = new StringBuffer();
Set en = meta2.keySet();
for (Iterator iteratorSetEn = en.iterator(); iteratorSetEn.hasNext(); ) {
Object o = iteratorSetEn.next();
if (!o.equals("id")) {
if (values.length() != 0) {
values.append(",");
}
Object quote = dbQuotes.get(dbToType);
if (quote == null) {
quote = "";
}
values.append(quote).append(o).append(quote);
values.append(" = ? ");
}
}
values.append(" WHERE id = '" + r.get("id") + "';");
PreparedStatement statement =
connectionTo.prepareStatement(sql.toString() + values.toString());
en = meta2.keySet();
int i = 0;
for (Iterator iteratorSetEn = en.iterator(); iteratorSetEn.hasNext(); ) {
Object o = iteratorSetEn.next();
if (!o.equals("id")) {
i++;
statement.setObject(i, r.get(o));
}
}
try {
totalUpdated += statement.executeUpdate();
} catch (SQLException e) {
e.printStackTrace();
log.append("Error occured: " + e + "\r\n");
}
}
}
if (verbose) log.append("Updated " + totalUpdated + " records.\r\n");
// 4. calculate all to insert to DB2
if (!toInsert.isEmpty()) {
StringBuffer header = new StringBuffer();
if (header.length() == 0) {
header.append(" INSERT INTO " + name2 + " (");
StringBuffer columns = new StringBuffer();
Set en = meta2.keySet();
for (Iterator iteratorSetEn = en.iterator(); iteratorSetEn.hasNext(); ) {
Object o = iteratorSetEn.next();
if (columns.length() != 0) {
columns.append(",");
}
Object quote = dbQuotes.get(dbToType);
if (quote == null) {
quote = "";
}
columns.append(quote).append(o).append(quote);
}
header.append(columns.toString());
header.append(") VALUES ");
}
Set enumeration = toInsert.keySet();
for (Iterator iteratorSetX = enumeration.iterator(); iteratorSetX.hasNext(); ) {
Object id = iteratorSetX.next();
HashMap r = (HashMap) toInsert.get(id);
StringBuffer values = new StringBuffer();
if (values.length() != 0) {
values.append(",");
}
values.append("(");
StringBuffer columns = new StringBuffer();
Set en = meta2.keySet();
for (Iterator iteratorSetEn = en.iterator(); iteratorSetEn.hasNext(); ) {
Object o = iteratorSetEn.next();
if (columns.length() != 0) {
columns.append(",");
}
columns.append(" ? ");
}
values.append(columns.toString());
values.append(");");
PreparedStatement statement =
connectionTo.prepareStatement(header.toString() + values.toString());
en = meta2.keySet();
int i = 0;
for (Iterator iteratorSetEn = en.iterator(); iteratorSetEn.hasNext(); ) {
Object o = iteratorSetEn.next();
i++;
statement.setObject(i, r.get(o));
}
statement.execute();
}
}
if (verbose) log.append("Replication finished OK.\r\n");
} catch (Exception e) {
log.append("Some error occured: " + e + "\r\n");
log.append(e.getMessage() + "\r\n");
e.printStackTrace();
}
}
} catch (Exception e) {
log.append("Error with query = " + e);
log.append(e.getMessage());
return;
} finally {
try {
if (connectionFrom != null && !connectionFrom.isClosed()) {
connectionFrom.close();
}
} catch (SQLException e) {
e.printStackTrace();
}
try {
if (connectionTo != null && !connectionTo.isClosed()) {
connectionTo.close();
}
} catch (SQLException e) {
e.printStackTrace();
}
}
if (verbose) log.append("Ended at " + Calendar.getInstance().getTime());
}
public boolean isReallyClosed() throws SQLException {
return conn.isClosed();
}
