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/*
* Copyright 2008 biaoping.yin
*
* 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 com.frameworkset.orm.adapter;
/*
*
* 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.
*/
import com.frameworkset.common.poolman.NestedSQLException;
import com.frameworkset.common.poolman.SQLExecutor;
import com.frameworkset.common.poolman.handle.NullRowHandler;
import com.frameworkset.common.poolman.util.JDBCPoolMetaData;
import com.frameworkset.common.poolman.util.SQLUtil;
import com.frameworkset.orm.engine.model.Domain;
import com.frameworkset.orm.engine.model.SchemaType;
import com.frameworkset.orm.platform.PlatformOracleImpl;
import oracle.jdbc.driver.OracleResultSet;
import oracle.jdbc.driver.OracleTypes;
import oracle.sql.BLOB;
import oracle.sql.CLOB;
import java.io.*;
import java.sql.*;
import java.text.SimpleDateFormat;
import java.util.Date;
/**
* This code should be used for an Oracle database pool.
*
* @author Jon S. Stevens
* @author Brett McLaughlin
* @author Bill Schneider
* @author Daniel Rall
* @version $Id: DBOracle.java,v 1.19 2005/01/31 19:43:55 tfischer Exp $
*/
public class DBOracle extends DB
{
/** date format used in getDateString() */
public static final String DATE_FORMAT = "yyyy-MM-dd HH:mm:ss";
// DD-MM-YYYY HH24:MI:SS old format
// public static final String db_format = "yyyy-MM-dd HH24:mi:ss";
/**
* Empty constructor.
*/
protected DBOracle()
{
this.platform = new PlatformOracleImpl();
date_format = "yyyy-MM-dd HH24:mi:ss";
}
/**
* This method is used to ignore case.
*
* @param in
* The string to transform to upper case.
* @return The upper case string.
*/
public String toUpperCase(String in)
{
return new StringBuilder("UPPER(").append(in).append(")").toString();
}
/**
* This method is used to ignore case.
*
* @param in
* The string whose case to ignore.
* @return The string in a case that can be ignored.
*/
public String ignoreCase(String in)
{
return new StringBuilder("UPPER(").append(in).append(")").toString();
}
public String to_char(String date,String format)
{
StringBuilder ret = new StringBuilder();
ret.append("to_char(")
.append(date)
.append(",'")
.append(format != null?format:this.FORMART_ALL)
.append("')");
return ret.toString();
}
public String to_char(String date)
{
return to_char(date,this.FORMART_ALL);
}
/**
* This method is used to format any date string.
*
* @param date
* the Date to format
* @return The date formatted String for Oracle.
* @deprecated use to_date function.
*/
public String getDateString(Date date)
{
return to_date( date,this.date_format);
}
/**
* @deprecated use to_date function.
*/
public String getDateString(String date)
{
return to_date( date,date_format);
}
/**
* This method is used to format any date string.
*
* @param date
* the Date to format
* @return The date formatted String for Oracle.
* @deprecated use to_date function.
*/
public String getDateString(Date date,String format)
{
return to_date( date,format);
}
/**
* @deprecated use to_date function.
*/
public String getDateString(String date,String format)
{
return to_date( date,format);
}
/**
* This method is used to format any date string.
*
* @param date
* the Date to format
* @return The date formatted String for Oracle.
*/
public String to_date(Date date)
{
return to_date( date,this.date_format);
}
public String to_date(String date)
{
return to_date( date,this.date_format);
}
/**
* This method is used to format any date string.
*
* @param date
* the Date to format
* @return The date formatted String for Oracle.
*/
public String to_date(Date date,String format)
{
if (date == null)
return null;
// DD-MM-YYYY HH24:MI:SS
return "TO_DATE('" + new SimpleDateFormat(DATE_FORMAT).format(date) + "', '"+format+"')";
}
public String to_date(String date,String format)
{
if (date == null)
return null;
return "TO_DATE('" + date
+ "', '"+format+"')";
}
/**
* This method is used to format any date string.
*
* @param date the Date to format
* @return The date formatted String for Oracle.
*/
public String filedToDateFunction(String date)
{
return filedToDateFunction( date,this.date_format);
}
/**
* This method is used to format any date string.
*
* @param date the Date to format
* @return The date formatted String for Oracle.
*/
public String filedToDateFunction(String date,String format)
{
if(date == null)
return null;
if (date == null)
return null;
return "TO_DATE(" + date
+ ", '"+format+"')";
}
/**
* @see com.frameworkset.orm.adapter.DB#getIDMethodType()
*/
public String getIDMethodType()
{
return SEQUENCE;
}
/**
* Returns the next key from a sequence. Uses the following implementation:
*
*
* select sequenceName.nextval from dual
*
*
* @param sequenceName
* The name of the sequence (should be of type
* String).
* @return SQL to retreive the next database key.
* @see com.frameworkset.orm.adapter.DB#getIDMethodSQL(Object)
*/
public String getIDMethodSQL(Object sequenceName)
{
return ("select " + sequenceName + ".nextval from dual");
}
/**
* Locks the specified table.
*
* @param con
* The JDBC connection to use.
* @param table
* The name of the table to lock.
* @exception SQLException
* No Statement could be created or executed.
*/
public void lockTable(Connection con, String table) throws SQLException
{
Statement statement = con.createStatement();
StringBuilder stmt = new StringBuilder();
stmt.append("SELECT next_id FROM ").append(table).append(" FOR UPDATE");
statement.executeQuery(stmt.toString());
}
/**
* Unlocks the specified table.
*
* @param con
* The JDBC connection to use.
* @param table
* The name of the table to unlock.
* @exception SQLException
* No Statement could be created or executed.
*/
public void unlockTable(Connection con, String table) throws SQLException
{
// Tables in Oracle are unlocked when a commit is issued. The
// user may have issued a commit but do it here to be sure.
con.commit();
}
/**
* This method is used to check whether the database natively supports
* limiting the size of the resultset.
*
* @return True.
*/
public boolean supportsNativeLimit()
{
return true;
}
/**
* This method is used to check whether the database supports limiting the
* size of the resultset.
*
* @return LIMIT_STYLE_ORACLE.
*/
public int getLimitStyle()
{
return DB.LIMIT_STYLE_ORACLE;
}
/**
* This method is for the SqlExpression.quoteAndEscape rules. The rule is,
* any string in a SqlExpression with a BACKSLASH will either be changed to
* "\\" or left as "\". SapDB does not need the escape character.
*
* @return false.
*/
public boolean escapeText()
{
return false;
}
// public Object getCharValue(ResultSet res, int i, String value)
// {
// if(value == null)
// return null;
// byte[] bytes = null;
// try {
// bytes = res.getBytes(i);
// int zhcount = countZHWord(bytes);
//
// if(zhcount > 0)
// return value.substring(0,value.length() - zhcount);
// } catch (SQLException e) {
// // // TODO Auto-generated catch block
// // e.printStackTrace();
// }
// return value;
//
// }
public Object getCharValue(ResultSet res, int i, String value)
{
if (value == null)
return null;
// byte[] bytes = null;
// try {
// bytes = res.getBytes(i);
// int zhcount = countZHWord(bytes);
//
// if(zhcount > 0)
// return value.substring(0,value.length() - zhcount);
// } catch (SQLException e) {
// // // TODO Auto-generated catch block
// // e.printStackTrace();
// }
return value;
}
public String getOROPR()
{
return "||";
}
public String getSchema(JDBCPoolMetaData info,Connection con)
{
if(info.getUserName() == null || info.getUserName().equals(""))
{
return null;
}
if(info.getDbInfoEncrypt() == null)
return info.getUserName().toUpperCase();
else
{
return info.getDbInfoEncrypt().decryptDBUser(info.getUserName()).toUpperCase();
}
}
/**
* 数据库主键最大值的获取方法
*/
public String getIDMAXSql(String table_name, String table_id_name, String table_id_prefix, String type)
{
// SUBSTR(table_id_name,LENGTH(table_id_prefix))
String maxSql = "select nvl(max(" + table_id_name + "),0) from " + table_name;
if (type.equalsIgnoreCase("string") || type.equalsIgnoreCase("java.lang.string"))
{
if (table_id_prefix != null && !table_id_prefix.trim().equals(""))
{
maxSql = "select nvl(max(TO_NUMBER(SUBSTR(" + table_id_name + ",LENGTH('" + table_id_prefix
+ "') + 1))),0) from " + table_name;
}
else
{
maxSql = "select nvl(max(TO_NUMBER(" + table_id_name + ")),0) from " + table_name;
}
}
return maxSql;
}
public String getNativeIdMethod()
{
// TODO Auto-generated method stub
return this.platform.getNativeIdMethod();
}
public int getMaxColumnNameLength()
{
// TODO Auto-generated method stub
return this.platform.getMaxColumnNameLength();
}
public Domain getDomainForSchemaType(SchemaType jdbcType)
{
// TODO Auto-generated method stub
return this.getDomainForSchemaType(jdbcType);
}
public String getNullString(boolean notNull)
{
// TODO Auto-generated method stub
return this.platform.getNullString(notNull);
}
public String getAutoIncrement()
{
// TODO Auto-generated method stub
return this.platform.getAutoIncrement();
}
public boolean hasSize(String sqlType)
{
// TODO Auto-generated method stub
return this.platform.hasSize(sqlType);
}
public boolean hasScale(String sqlType)
{
// TODO Auto-generated method stub
return this.platform.hasScale(sqlType);
}
/**
* 获取受限制结果条数的sql语句，默认为mysql语法规则 不同的数据库需要重载本方法
*
* @param selectSql
* String
* @param limit
* int
* @return String
*/
public String getLimitSelect(String selectSql, int limit)
{
// selectSql += " LIMIT " + limit;
StringBuilder ret = new StringBuilder();
ret.append("select * from (").append(selectSql).append(") where rownum <=").append(limit);
return ret.toString();
}
/**
* 获取指定数据的分页数据sql语句
*
* @param sql
* @return
*/
public PagineSql getDBPagineSql(String sql, long offset, int maxsize,boolean prepared)
{
// StringBuilder ret = new
// StringBuilder("select ss1.* from (select tt1.*,rownum rowno_ from (")
// .append(sql)
// .append(") tt1) ss1 where ss1.rowno_ between ")
// .append((offset + 1) + "")
// .append(" and ")
// .append((offset + maxsize) + "");
// StringBuilder ret = new StringBuilder("select ss1.* from (select tt1.*,rownum rowno_ from (").append(sql).append(
// ") tt1 where rownum <= ").append((offset + maxsize)).append(") ss1 where ss1.rowno_ >= ").append(
// (offset + 1));
// return ret.toString();
StringBuilder ret = null;
if(prepared)
ret = new StringBuilder().append("select ss1.* from (select tt1.*,rownum rowno_ from (").append(sql).append(
") tt1 where rownum <= ?) ss1 where ss1.rowno_ >= ?");
else
ret = new StringBuilder("select ss1.* from (select tt1.*,rownum rowno_ from (").append(sql).append(
") tt1 where rownum <= ").append((offset + maxsize)).append(") ss1 where ss1.rowno_ >= ").append(
(offset + 1));
return new PagineSql(ret.toString(),offset + maxsize,offset + 1,offset, maxsize, prepared).setRebuilded(true);
}
public String getStringPagineSql(String sql)
{
// StringBuilder ret = new
// StringBuilder("select ss1.* from (select tt1.*,rownum rowno_ from (")
// .append(sql)
// .append(") tt1) ss1 where ss1.rowno_ between ")
// .append((offset + 1) + "")
// .append(" and ")
// .append((offset + maxsize) + "");
// StringBuilder ret = new StringBuilder("select ss1.* from (select tt1.*,rownum rowno_ from (").append(sql).append(
// ") tt1 where rownum <= ").append((offset + maxsize)).append(") ss1 where ss1.rowno_ >= ").append(
// (offset + 1));
// return ret.toString();
StringBuilder ret = new StringBuilder().append("select ss1.* from (select tt1.*,rownum rowno_ from (").append(sql).append(
") tt1 where rownum <= ?) ss1 where ss1.rowno_ >= ?");
return ret.toString();
}
public String getStringPagineSql(String schema,String tablename,String pkname ,String columns)
{
StringBuilder sqlbuilder = new StringBuilder();
sqlbuilder.append("select * from (SELECT ");
if(columns != null && ! columns.equals(""))
{
sqlbuilder.append( columns);
}
else
sqlbuilder.append("* ");
sqlbuilder.append(",ROW_NUMBER() OVER ( ORDER BY ").append(pkname).append(") rownum__ from ");
if(schema != null && !schema.equals(""))
sqlbuilder.append(schema).append(".");
sqlbuilder.append( tablename);
if(columns != null && ! columns.equals(""))
sqlbuilder.append( " ) bb where bb.rownum__ <=? and bb.rownum__ >=?");
else
sqlbuilder.append( " t) bb where bb.rownum__ <=? and bb.rownum__ >=?");
return sqlbuilder.toString();
}
public void queryByNullRowHandler(NullRowHandler handler,String dbname,String pageinestatement,long offset,int pagesize) throws SQLException
{
SQLExecutor.queryWithDBNameByNullRowHandler(handler, dbname, pageinestatement,offset + pagesize,offset + 1);
}
public void resetPostion( PreparedStatement statement,int startidx,int endidx,long offset,int maxsize) throws SQLException
{
statement.setLong(startidx, offset + maxsize);
statement.setLong(endidx, offset + 1);
}
/**
* 获取受限制结果条数的sql语句，要求selectSql的语法，按oracle自定义受限语句语法，例如 SELECT
* a.cpmc,a.ggxh,a.
* cjdd,a.ph,a.jgxs,a.dj,a.jldw,a.cd,a.cddm,a.flag,cjrq,a.pricepsj_id
* ,b.user_name, ROW_NUMBER() OVER ( ORDER BY cjrq ) aa from
* td_price_pricepsj_jmrygypjg a,td_sm_user b
*
* @param selectSql
* String
* @param limit
* int
* @param rownum
* 行号的别名
* @return String
*/
public String getOracleLimitSelect(String selectSql, int limit, String rownum)
{
// selectSql += " LIMIT " + limit;
StringBuilder ret = new StringBuilder();
ret.append("select * from (").append(selectSql).append(") where ").append(rownum).append(" <=").append(limit);
return ret.toString();
}
/**
* 获取指定数据的分页数据sql语句
* @param sql
* @return
*/
public PagineSql getDBPagineSql(String sql, long offset, int maxsize,boolean prepared,String orderby) {
StringBuilder ret = null;
if(prepared)
ret = new StringBuilder().append("SELECT * FROM (SELECT b.*, ROW_NUMBER () OVER (").append(orderby).append(") AS rownums FROM (").append(sql).append(") b) WHERE rownums <= ? and rownums >=?");
else
{
ret = new StringBuilder().append("SELECT * FROM (SELECT b.*, ROW_NUMBER () OVER (").append(orderby).append(") AS rownums FROM (").append(sql).append(") b) WHERE rownums <= ").append(offset + maxsize).append(" and rownums >=").append(offset + 1);
}
return new PagineSql(ret.toString(),offset + maxsize,offset + 1,offset, maxsize, prepared).setRebuilded(true);
//// return new StringBuilder(sql).append(" limit ").append(offset).append(",").append(maxsize).toString();
// StringBuilder newsql = new StringBuilder();
// if(prepared)
// {
// newsql.append("SELECT t.* FROM (SELECT res.* ,row_number() over(").append(orderby).append(") r FROM (").append(sql)
// .append(")) t where t.r <= ? and t.r >= ?");
//
//
// /**
// * StringBuilder ret = null;
// if(prepared)
// ret = new StringBuilder().append("select ss1.* from (select tt1.*,rownum rowno_ from (").append(sql).append(
// ") tt1 where rownum <= ?) ss1 where ss1.rowno_ >= ?");
// else
// ret = new StringBuilder("select ss1.* from (select tt1.*,rownum rowno_ from (").append(sql).append(
// ") tt1 where rownum <= ").append((offset + maxsize)).append(") ss1 where ss1.rowno_ >= ").append(
// (offset + 1));
// return new PagineSql(ret.toString(),offset + maxsize,offset + 1,offset, maxsize, prepared);
// */
// return new PagineSql(newsql.toString(),offset + maxsize,offset + 1,offset, maxsize, prepared);
// }
// else
// {
// newsql.append("SELECT t.* FROM (SELECT res.* ,row_number() over(").append(orderby).append(") r FROM (").append(sql)
// .append(")) t where t.r <= ").append(offset + maxsize).append(" and t.r >= ").append(offset + 1).append("");
// return new PagineSql(newsql.toString(),offset + maxsize,offset + 1,offset, maxsize, prepared);
// }
}
public String getStringPagineSql(String sql,String orderby)
{
// StringBuilder newsql = new StringBuilder();
// newsql.append("SELECT t.* FROM (SELECT res.* ,row_number() over(").append(orderby).append(") r FROM (").append(sql)
// .append(")) t where t.r <= ? and t.r >= ?");
// return newsql.toString();
StringBuilder ret = new StringBuilder().append("SELECT * FROM (SELECT b.*, ROW_NUMBER () OVER (").append(orderby).append(") AS rownums FROM (").append(sql).append(") b) WHERE rownums <= ? and rownums >=?");
return ret.toString();
}
public String getStringPagineSql(String schema,String tablename,String pkname ,String columns,String orderby)
{
// StringBuilder newsql = new StringBuilder();
// newsql.append("SELECT t.* FROM (SELECT res.* ,row_number() over(").append(orderby).append(") r FROM (").append("SELECT ");
// if(columns != null && ! columns.equals(""))
// {
// newsql.append( columns);
// }
// else
// newsql.append("* ");
// newsql.append(" from ");
// if(schema != null && !schema.equals(""))
// newsql.append(schema).append(".");
// newsql.append( tablename)
// .append(")) t where t.r <= ? and t.r >= ?");
// return newsql.toString();
StringBuilder newsql = new StringBuilder().append("SELECT * FROM (SELECT b.*, ROW_NUMBER () OVER (").append(orderby).append(") AS rownums FROM (").append("SELECT ");
if(columns != null && ! columns.equals(""))
{
newsql.append( columns);
}
else
newsql.append("* ");
newsql.append(" from ");
if(schema != null && !schema.equals(""))
newsql.append(schema).append(".");
newsql.append( tablename).append(") b) WHERE rownums <= ? and rownums >=?");
return newsql.toString();
}
/**
* 获取高效的oracle分页语句，sql中已经写好ROW_NUMBER() OVER ( ORDER BY cjrq ) rownum
* 否则不能调用本方法生成oralce的分页语句
*/
public PagineSql getOracleDBPagineSql(String sql, long offset, int maxsize, String rownum,boolean prepared)
{
StringBuilder ret = null;
if(prepared)
ret = new StringBuilder().append("select * from (").append(sql).append(") where ").append(rownum).append(
" between ? and ?");
else
{
ret = new StringBuilder().append("select * from (").append(sql).append(") where ").append(rownum).append(
" between ").append(offset + 1).append(" and ").append(offset + maxsize);
}
return new PagineSql(ret.toString(),offset + 1,offset + maxsize,offset, maxsize, prepared);
}
private static final String columncommentsql = "select c.comments from user_col_comments c where NLS_LOWER(c.table_name)=? and NLS_LOWER(c.column_name)=?";
private static final String tablecommentsql = "select comments from user_tab_comments where NLS_LOWER(table_name)=? and table_type='TABLE'";
public String getTableRemarks(Connection con, String tableName, String tableRemark)
{
PreparedStatement pstmt = null;
ResultSet rs = null;
try
{
pstmt = con.prepareStatement(tablecommentsql);
pstmt.setString(1, tableName.toLowerCase());
rs = pstmt.executeQuery();
while (rs.next())
{
String remark = rs.getString(1);
if (remark == null)
remark = "";
// System.out.println(remark);
return remark;
}
}
catch (SQLException e)
{
}
finally
{
if (rs != null)
{
try
{
rs.close();
}
catch (SQLException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if (pstmt != null)
{
try
{
pstmt.close();
}
catch (SQLException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
return tableRemark;
}
public String getColumnRemarks(Connection con, String tableName, String columnName, String remarks_c)
{
PreparedStatement pstmt = null;
ResultSet rs = null;
try
{
pstmt = con.prepareStatement(columncommentsql);
pstmt.setString(1, tableName.toLowerCase());
pstmt.setString(2, columnName.toLowerCase());
rs = pstmt.executeQuery();
while (rs.next())
{
String remark = rs.getString(1);
if (remark == null)
remark = "";
return remark;
}
}
catch (SQLException e)
{
}
finally
{
if (rs != null)
{
try
{
rs.close();
}
catch (SQLException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if (pstmt != null)
{
try
{
pstmt.close();
}
catch (SQLException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
return remarks_c;
}
public int getSCROLLType(String dbdriver)
{
return ResultSet.TYPE_FORWARD_ONLY;
}
public int getCusorType(String dbdriver)
{
return ResultSet.CONCUR_READ_ONLY;
}
// public String getDateFormat(){
// return date_format;
// }
/**
*
* @param content
* @param conn
* @param table
* @param clobColumn
* @param keyColumn
* @param keyValue
* @param dbName
* @throws SQLException
* @throws IOException
* @deprecated
*/
public void updateClob(Object content, Connection conn,
String table, String clobColumn, String keyColumn, String keyValue,
String dbName) throws SQLException, IOException
{
// nullBlob(conn, table,blobColumn, keyColumn,keyValue);
PreparedStatement stmt = null;
ResultSet rs = null;
Writer wr = null;
StringBuilder sqlBuffer = new StringBuilder();
boolean flag = false;
boolean oldAutoCommit = false;
try {
oldAutoCommit = conn.getAutoCommit();
if (oldAutoCommit) {
conn.setAutoCommit(false);
flag = true;
}
sqlBuffer.append("select ");
sqlBuffer.append(clobColumn);
sqlBuffer.append(" from ");
sqlBuffer.append(table);
sqlBuffer.append(" where ");
sqlBuffer.append(keyColumn);
sqlBuffer.append("=");
sqlBuffer.append("?");
// 注意这里的”for update”
sqlBuffer.append(" for update nowait");
stmt = conn.prepareStatement(sqlBuffer.toString());
SQLUtil.setValue(stmt, 1, table, keyColumn, keyValue, dbName,conn);
rs = stmt.executeQuery();
if (!rs.next())
{
commitBig(oldAutoCommit,conn,flag) ;
throw new IllegalArgumentException(
"no record found for keyValue: '" + keyValue + "'");
}
oracle.sql.CLOB clob = (oracle.sql.CLOB) rs.getClob(clobColumn);
if (clob == null) {
clob = initClob(conn, table, clobColumn, keyColumn, keyValue,
dbName);
}
wr = clob.getCharacterOutputStream();
if(content instanceof String)
{
wr.write((String)content);
}
else if(content instanceof File)
{
File f = (File)content;
FileReader reader = new FileReader(f);
char[] cbuf = new char[1024];
int i = 0;
while((i = reader.read(cbuf)) > 0)
{
wr.write(cbuf,0,i);
}
}
else
{
String temp = String.valueOf(content);
wr.write(temp);
}
wr.flush();
commitBig(oldAutoCommit,conn,flag) ;
} catch (SQLException e) {
rollbackBig(oldAutoCommit,conn,flag) ;
throw e;
}
// catch()
catch (IOException e) {
rollbackBig(oldAutoCommit,conn,flag) ;
throw e;
} catch (Exception e) {
rollbackBig(oldAutoCommit,conn,flag) ;
throw new SQLException(e.getMessage());
} finally {
try {
if (rs != null) {
rs.close();
}
} catch (Exception e) {
}
try {
if (stmt != null) {
stmt.close();
}
} catch (Exception e) {
}
try {
if (conn != null) {
if (oldAutoCommit)
conn.setAutoCommit(true);
}
} catch (Exception e) {
}
try {
if (wr != null) {
wr.close();
}
} catch (Exception e) {
}
}
}
/**
*
* @param instream
* @param conn
* @param table
* @param blobColumn
* @param keyColumn
* @param keyValue
* @param dbName
* @throws SQLException
* @throws IOException
* @deprecated
*/
public void updateBlob(InputStream instream, Connection conn,
String table, String blobColumn, String keyColumn, String keyValue,
String dbName) throws SQLException, IOException
{
// nullBlob(conn, table,blobColumn, keyColumn,keyValue);
PreparedStatement stmt = null;
ResultSet rs = null;
OutputStream outstream = null;
StringBuilder sqlBuffer = new StringBuilder();
// PreparedStatement nextStatement = null;
boolean oldAutoCommit = false;
boolean flag = false;
try {
oldAutoCommit = conn.getAutoCommit();
if (oldAutoCommit) {
conn.setAutoCommit(false);
flag = true;
}
sqlBuffer.append("select ");
sqlBuffer.append(blobColumn);
sqlBuffer.append(" from ");
sqlBuffer.append(table);
sqlBuffer.append(" where ");
sqlBuffer.append(keyColumn);
sqlBuffer.append("=");
sqlBuffer.append("?");
// 注意这里的”for update”
sqlBuffer.append(" for update nowait");
stmt = conn.prepareStatement(sqlBuffer.toString());
SQLUtil.setValue(stmt, 1, table, keyColumn, keyValue, dbName,conn);
rs = stmt.executeQuery();
if (!rs.next())
{
commitBig(oldAutoCommit,conn,flag) ;
throw new SQLException(
"no record found for keyValue: '" + keyValue + "'");
}
oracle.sql.BLOB blob = (oracle.sql.BLOB) rs.getBlob(blobColumn);
// ByteArrayInputStream binstream = new
// ByteArrayInputStream(instream);
if (blob == null) {
// nextStatement = conn.prepareStatement("COMMIT");
// nextStatement.execute();
// nextStatement.close();
blob = initBlob(conn, table, blobColumn, keyColumn, keyValue,
dbName);
}
outstream = blob.getBinaryOutputStream();
int bufferSize = blob.getChunkSize();
byte[] buffer = new byte[bufferSize];
int bytesRead = -1;
while ((bytesRead = instream.read(buffer)) > 0) {
outstream.write(buffer, 0, bytesRead);
}
outstream.flush();
commitBig(oldAutoCommit,conn,flag) ;
} catch (SQLException e) {
rollbackBig(oldAutoCommit,conn,flag);
throw e;
}
// catch()
catch (IOException e) {
rollbackBig(oldAutoCommit,conn,flag);
throw new SQLException(e.getMessage());
} catch (Exception e) {
rollbackBig(oldAutoCommit,conn,flag);
throw new SQLException(e.getMessage());
} finally {
try {
if (rs != null) {
rs.close();
}
} catch (Exception e) {
}
try {
if (stmt != null) {
stmt.close();
}
} catch (Exception e) {
}
try {
if (instream != null) {
instream.close();
}
} catch (Exception e) {
}
try {
if (outstream != null) {
outstream.close();
}
} catch (Exception e) {
}
try {
if (conn != null) {
if (oldAutoCommit)
conn.setAutoCommit(true);
}
} catch (Exception e) {
}
}
}
private static void commitBig(boolean oldAutoCommit,Connection conn,boolean flag) throws SQLException
{
if(oldAutoCommit && flag)
{
SQLException ee = null;
try
{
conn.commit();
}
catch(SQLException e)
{
ee = e;
}
try
{
conn.setAutoCommit(oldAutoCommit);
}
catch(SQLException e)
{
ee = e;
}
if (ee != null)
throw ee;
}
}
private static void rollbackBig(boolean oldAutoCommit,Connection conn,boolean flag)
{
if (oldAutoCommit && flag) {
SQLException ee = null;
try
{
conn.rollback();
}
catch(SQLException e1)
{
ee = e1;
}
try
{
conn.setAutoCommit(oldAutoCommit);
}
catch(SQLException e1)
{
ee = e1;
}
}
}
/**
* 根据输入流更新
*
* @param value
* @param conn
* @param table
* @param blobColumn
* @param keyColumn
* @param keyValue
* @throws SQLException
* @throws IOException
* @deprecated
*/
public void updateBlob(byte[] value, Connection conn, String table,
String blobColumn, String keyColumn, String keyValue, String dbName)
throws SQLException, IOException
{
// nullBlob(conn, table,blobColumn, keyColumn,keyValue);
PreparedStatement stmt = null;
ResultSet rs = null;
ByteArrayInputStream instream = null;
OutputStream outstream = null;
StringBuilder sqlBuffer = new StringBuilder();
// PreparedStatement nextStatement = null;
boolean oldAutoCommit = false;
boolean flag = false;
try {
oldAutoCommit = conn.getAutoCommit();
if (oldAutoCommit) {
conn.setAutoCommit(false);
flag = true;
}
sqlBuffer.append("select ");
sqlBuffer.append(blobColumn);
sqlBuffer.append(" from ");
sqlBuffer.append(table);
sqlBuffer.append(" where ");
sqlBuffer.append(keyColumn);
sqlBuffer.append("=");
sqlBuffer.append("?");
// 注意这里的”for update”
sqlBuffer.append(" for update nowait");
stmt = conn.prepareStatement(sqlBuffer.toString());
SQLUtil.setValue(stmt, 1, table, keyColumn, keyValue, dbName,conn);
rs = stmt.executeQuery();
if (!rs.next())
{
commitBig(oldAutoCommit,conn,flag) ;
throw new SQLException(
"no record found for keyValue: '" + keyValue + "'");
}
oracle.sql.BLOB blob = (oracle.sql.BLOB) rs.getBlob(blobColumn);
// ByteArrayInputStream binstream = new
// ByteArrayInputStream(instream);
if (blob == null) {
// nextStatement = conn.prepareStatement("COMMIT");
// nextStatement.execute();
// nextStatement.close();
blob = initBlob(conn, table, blobColumn, keyColumn, keyValue,
dbName);
}
instream = new ByteArrayInputStream(value);
outstream = blob.getBinaryOutputStream();
int bufferSize = blob.getChunkSize();
byte[] buffer = new byte[bufferSize];
int bytesRead = -1;
while ((bytesRead = instream.read(buffer)) != -1) {
outstream.write(buffer, 0, bytesRead);
}
outstream.flush();
// if (tx == null) {
//nextStatement = conn.prepareStatement("COMMIT");
//nextStatement.execute();
commitBig(oldAutoCommit,conn,flag) ;
// }
// rs.close();
// stmt.close();
// if(nextStatement != null)
// nextStatement.close();
// instream.close();
// outstream.close();
} catch (SQLException e) {
// if (tx != null) {
// try {
// tx.setRollbackOnly();
// } catch (IllegalStateException e1) {
// // TODO Auto-generated catch block
// e1.printStackTrace();
// } catch (SystemException e1) {
// // TODO Auto-generated catch block
// e1.printStackTrace();
// }
// } else {
rollbackBig(oldAutoCommit,conn,flag);
// }
throw e;
}
// catch()
catch (IOException e) {
// if (tx != null) {
// try {
// tx.setRollbackOnly();
// } catch (IllegalStateException e1) {
// // TODO Auto-generated catch block
// e1.printStackTrace();
// } catch (SystemException e1) {
// // TODO Auto-generated catch block
// e1.printStackTrace();
// }
// } else {
rollbackBig(oldAutoCommit,conn,flag);
// }
throw new SQLException(e.getMessage());
} catch (Exception e) {
rollbackBig(oldAutoCommit,conn,flag);
throw new SQLException(e.getMessage());
} finally {
try {
if (rs != null) {
rs.close();
}
} catch (Exception e) {
}
try {
if (stmt != null) {
stmt.close();
}
} catch (Exception e) {
}
// try {
// if (nextStatement != null) {
// nextStatement.close();
// }
// } catch (Exception e) {
// }
try {
if (instream != null) {
instream.close();
}
} catch (Exception e) {
}
try {
if (outstream != null) {
outstream.close();
}
} catch (Exception e) {
}
try {
if (conn != null) {
if (oldAutoCommit)
conn.setAutoCommit(true);
}
} catch (Exception e) {
}
}
}
/**
* 初始化blob字段
*
* @param conn
* @param table
* @param blobColumn
* @param keyColumn
* @param keyValue
* @throws SQLException
* @deprecated
*/
private static BLOB initBlob(Connection conn, String table,
String blobColumn, String keyColumn, String keyValue, String dbName)
throws SQLException {
StringBuilder sql = new StringBuilder();
PreparedStatement pstmt = null;
PreparedStatement stmt = null;
ResultSet rs = null;
try {
sql.append("update ").append(table).append(" set ").append(
blobColumn).append("=?").append(" where ").append(
keyColumn).append("=").append("'").append(keyValue).append(
"'");
pstmt = conn.prepareStatement(sql.toString());
pstmt.setBlob(1, BLOB.empty_lob());
pstmt.executeUpdate();
/**
* 获取刚刚初始化的字段clob字段
*/
StringBuilder sqlBuffer = new StringBuilder();
sqlBuffer.append("select ");
sqlBuffer.append(blobColumn);
sqlBuffer.append(" from ");
sqlBuffer.append(table);
sqlBuffer.append(" where ");
sqlBuffer.append(keyColumn);
sqlBuffer.append("=");
sqlBuffer.append("?");
// 注意这里的”for update”
sqlBuffer.append(" ");
stmt = conn.prepareStatement(sqlBuffer.toString());
SQLUtil.setValue(stmt, 1, table, keyColumn, keyValue, dbName,conn);
rs = stmt.executeQuery();
if(rs.next())
{
oracle.sql.BLOB blob = (oracle.sql.BLOB) rs.getBlob(blobColumn);
return blob;
}
else
{
throw new SQLException(
"no record found for keyValue: '" + keyValue + "'");
}
} catch (SQLException e) {
throw e;
}
catch(Exception e)
{
e.printStackTrace();
throw new SQLException(e.getMessage());
}
finally {
if (rs != null) {
try {
rs.close();
} catch (SQLException e) {
throw e;
}
}
if (pstmt != null) {
try {
pstmt.close();
} catch (SQLException e) {
throw e;
}
}
if (stmt != null) {
try {
stmt.close();
} catch (SQLException e) {
throw e;
}
}
}
}
/**
* 初始化blob字段
*
* @param conn
* @param table
* @param blobColumn
* @param keyColumn
* @param keyValue
* @throws SQLException
*/
private CLOB initClob(Connection conn, String table,
String clobColumn, String keyColumn, String keyValue, String dbName)
throws SQLException {
PreparedStatement pstmt = null;
PreparedStatement stmt = null;
ResultSet rs = null;
try {
StringBuilder sql = new StringBuilder();
sql.append("update ").append(table).append(" set ").append(
clobColumn).append("=?").append(" where ").append(
keyColumn).append("=").append("'").append(keyValue).append(
"'");
pstmt = conn.prepareStatement(sql.toString());
pstmt.setClob(1, CLOB.empty_lob());
pstmt.executeUpdate();
/**
* 获取刚刚初始化的字段clob字段
*/
StringBuilder sqlBuffer = new StringBuilder();
sqlBuffer.append("select ");
sqlBuffer.append(clobColumn);
sqlBuffer.append(" from ");
sqlBuffer.append(table);
sqlBuffer.append(" where ");
sqlBuffer.append(keyColumn);
sqlBuffer.append("=");
sqlBuffer.append("?");
// 注意这里的”for update”
sqlBuffer.append(" ");
stmt = conn.prepareStatement(sqlBuffer.toString());
SQLUtil.setValue(stmt, 1, table, keyColumn, keyValue, dbName,conn);
rs = stmt.executeQuery();
if(rs.next())
{
oracle.sql.CLOB clob = (oracle.sql.CLOB) rs.getClob(clobColumn);
return clob;
}
else
{
throw new SQLException(
"no record found for keyValue: '" + keyValue + "'");
}
} catch (SQLException e) {
throw e;
}
catch (Exception e) {
throw new SQLException(e.getMessage());
}
finally {
if (rs != null) {
try {
rs.close();
} catch (SQLException e) {
throw e;
}
}
if (pstmt != null) {
try {
pstmt.close();
} catch (SQLException e) {
throw e;
}
}
if (stmt != null) {
try {
stmt.close();
} catch (SQLException e) {
throw e;
}
}
}
}
public void updateBLOB(Blob blob_,File file) throws SQLException
{
BLOB blob = (BLOB)blob_;
if(blob == null)
{
return ;
}
if(file == null || !file.exists())
{
return ;
}
InputStream instream = null;
OutputStream outstream = null;
try
{
outstream = blob.getBinaryOutputStream();
instream = new java.io.BufferedInputStream(new java.io.FileInputStream(file));
int bufferSize = blob.getChunkSize();
byte[] buffer = new byte[bufferSize];
int bytesRead = -1;
while ((bytesRead = instream.read(buffer)) > 0) {
outstream.write(buffer, 0, bytesRead);
}
outstream.flush();
}
catch(SQLException e)
{
throw e;
}
catch(Exception e)
{
throw new NestedSQLException(e);
}
finally
{
try {
if (instream != null) {
instream.close();
}
} catch (Exception e) {
}
instream = null;
try {
if (outstream != null) {
outstream.close();
}
} catch (Exception e) {
}
outstream = null;
}
}
public void updateBLOB(Blob blob_,InputStream instream) throws SQLException
{
BLOB blob = (BLOB)blob_;
if(blob == null)
{
return ;
}
if(instream == null )
{
return ;
}
// InputStream instream = null;
OutputStream outstream = null;
try
{
outstream = blob.getBinaryOutputStream();
// instream = new java.io.FileInputStream(file);
int bufferSize = blob.getChunkSize();
byte[] buffer = new byte[bufferSize];
int bytesRead = -1;
while ((bytesRead = instream.read(buffer)) > 0) {
outstream.write(buffer, 0, bytesRead);
}
outstream.flush();
}
catch(SQLException e)
{
throw e;
}
catch(Exception e)
{
throw new NestedSQLException(e);
}
finally
{
try {
if (instream != null) {
instream.close();
}
} catch (Exception e) {
}
instream = null;
try {
if (outstream != null) {
outstream.close();
}
} catch (Exception e) {
}
outstream = null;
}
}
public void updateCLOB(Clob clob_,Object content) throws SQLException
{
CLOB clob = (CLOB)clob_;
if(clob == null)
{
return ;
}
if(content == null )
{
return ;
}
// InputStream instream = null;
// OutputStream outstream = null;
Reader reader = null;
Writer wr = null;
try
{
wr = clob.getCharacterOutputStream();
if(content instanceof String)
{
reader = new java.io.BufferedReader(new java.io.StringReader((String)content));
// wr.write((String)content);
}
else if(content instanceof File)
{
File f = (File)content;
reader = new java.io.BufferedReader(new FileReader(f));
// File f = (File)content;
// FileReader reader = new FileReader(f);
// char[] cbuf = new char[1024];
// int i = 0;
// while((i = reader.read(cbuf)) > 0)
// {
// wr.write(cbuf,0,i);
// }
}
else if(content instanceof Reader)
{
reader = (Reader)content;
// String temp = String.valueOf(content);
// wr.write(temp);
}
else
{
String s = content.toString();
reader = new java.io.BufferedReader(new java.io.StringReader(s));
}
char[] cbuf = new char[1024];
int i = 0;
while((i = reader.read(cbuf)) > 0)
{
wr.write(cbuf,0,i);
}
wr.flush();
}
catch(SQLException e)
{
throw e;
}
catch(Exception e)
{
throw new NestedSQLException(e);
}
finally
{
if(reader != null)
try {
reader.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
if(wr != null)
try {
wr.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
reader = null;
wr = null;
}
}
/**
* Returns the bytes from a result set
*
* @param res
* The ResultSet to read from
* @param columnName
* The name of the column to read from
*
* @return The byte value from the column
*/
public byte[] getBytesFromResultset(ResultSet res, String columnName)
throws SQLException {
// read the bytes from an oracle blob
oracle.sql.BLOB blob = ((OracleResultSet) res).getBLOB(columnName);
byte[] content = new byte[(int) blob.length()];
content = blob.getBytes(1, (int) blob.length());
return content;
}
/**
* Returns the bytes from a result set
*
* @param res
* The ResultSet to read from
* @param columnName
* The name of the column to read from
*
* @return The byte value from the column
*/
public byte[] getBytesFromBlob(Blob blob) throws SQLException {
// read the bytes from an oracle blob
// oracle.sql.BLOB blob = ((OracleResultSet) res).getBLOB(columnName);
byte[] content = new byte[(int) blob.length()];
content = blob.getBytes(1, (int) blob.length());
return content;
}
/**
* Returns the bytes from a result set
*
* @param res
* The ResultSet to read from
* @param columnName
* The name of the column to read from
*
* @return The byte value from the column
*/
public byte[] getBytesFromClob(Clob clob_) {
// read the bytes from an oracle blob
// oracle.sql.CLOB clob = ((OracleResultSet) res).getBLOB(columnName);
oracle.sql.CLOB clob = (CLOB)clob_;
byte[] content = clob.getBytes();
return content;
}
/**
* Returns the bytes from a result set
*
* @param clob_
*
*
* @return The byte value from the column
*/
public String getStringFromClob(Clob clob_) {
// read the bytes from an oracle blob
// oracle.sql.CLOB clob = ((OracleResultSet) res).getBLOB(columnName);
oracle.sql.CLOB clob = (CLOB)clob_;
byte[] content = clob.getBytes();
String ret = new String(content);
return ret;
}
public boolean isOracleTimestamp(int sqlType){
if(sqlType == Types.TIMESTAMP || sqlType == Types.DATE || sqlType == OracleTypes.TIMESTAMPLTZ
|| sqlType == OracleTypes.TIMESTAMPNS
|| sqlType == OracleTypes.TIMESTAMPTZ )
return true;
return false;
}
}
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