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Copy pathSample4Append.java
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158 lines (132 loc) · 5.21 KB
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import java.util.*;
import java.sql.*;
import java.io.*;
import java.text.SimpleDateFormat;
import java.math.BigDecimal;
import com.machbase.jdbc.*;
public class Sample4Append
{
protected static final String sTableName = "sample_table";
protected static final int sErrorCheckCount = 100;
public static Connection connect()
{
Connection conn = null;
try
{
String sURL = "jdbc:machbase://localhost:5656/mhdb";
Properties sProps = new Properties();
sProps.put("user", "sys");
sProps.put("password", "manager");
Class.forName("com.machbase.jdbc.MachDriver");
conn = DriverManager.getConnection(sURL, sProps);
}
catch ( ClassNotFoundException ex )
{
System.err.println("Exception : unable to load machbase jdbc driver class");
}
catch ( Exception e )
{
System.err.println("Exception : " + e.getMessage());
}
return conn;
}
public static void main(String[] args) throws Exception
{
Connection conn = null;
MachStatement stmt = null;
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
Calendar cal = Calendar.getInstance();
String filename = "data.txt";
try
{
conn = connect();
if( conn != null )
{
System.out.println("machbase JDBC connected.");
stmt = (MachStatement)conn.createStatement();
ResultSet rs = stmt.executeAppendOpen(sTableName, sErrorCheckCount);
ResultSetMetaData rsmd = rs.getMetaData();
System.out.println("append open ok");
MachAppendCallback cb = new MachAppendCallback() {
@Override
public void onAppendError(long aErrNo, String aErrMsg, String aRowMsg) {
System.out.format("Append Error : [%05d - %s]\n%s\n", aErrNo, aErrMsg, aRowMsg);
}
};
stmt.executeSetAppendErrorCallback(cb);
System.out.println("append data start");
BufferedReader in = new BufferedReader(new FileReader(filename));
String buf = null;
int cnt = 0;
long dt;
long startTime = System.nanoTime();
while( (buf = in.readLine()) != null )
{
ArrayList<Object> sBuf = new ArrayList<Object>();
StringTokenizer st = new StringTokenizer(buf,",");
for(int i=0; st.hasMoreTokens() ;i++ )
{
switch(i){
case 7://binary case
sBuf.add(new ByteArrayInputStream(st.nextToken().getBytes())); break;
case 10://datetime case
java.util.Date day = sdf.parse(st.nextToken());
cal.setTime(day);
dt = cal.getTimeInMillis()*1000000; //make nanotime
sBuf.add(dt);
break;
default:
sBuf.add(st.nextToken()); break;
}
}
if( stmt.executeAppendData(rsmd, sBuf) != 1 )
{
System.err.println("Error : AppendData error");
break;
}
if( (cnt++%10000) == 0 )
{
System.out.print(".");
}
sBuf = null;
}
System.out.println("\nappend data end");
long endTime = System.nanoTime();
stmt.executeAppendClose();
System.out.println("append close ok");
System.out.println("Append Result : success = "+stmt.getAppendSuccessCount()+", failure = "+stmt.getAppendFailureCount());
System.out.println("timegap " + ((endTime - startTime)/1000) + " in microseconds, " + cnt + " records" );
try {
BigDecimal records = new BigDecimal( cnt );
BigDecimal gap = new BigDecimal( (double)(endTime - startTime)/1000000000 );
BigDecimal rps = records.divide(gap, 2, BigDecimal.ROUND_UP );
System.out.println( rps + " records/second" );
} catch(ArithmeticException ae) {
System.out.println( cnt + " records/second");
}
rs.close();
}
}
catch( SQLException se )
{
System.err.println("SQLException : " + se.getMessage());
}
catch( Exception e )
{
System.err.println("Exception : " + e.getMessage());
}
finally
{
if( stmt != null )
{
stmt.close();
stmt = null;
}
if( conn != null )
{
conn.close();
conn = null;
}
}
}
}