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Rewrite the loading engine,

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Add configurable feeld and message breaks,
Add new command line options: -fb and -mb.
This commit is contained in:
giberta1 2002-04-19 15:22:14 +00:00
parent 83000b0dd4
commit 81ef96b80d
1 changed files with 331 additions and 51 deletions
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372
MQSLoad.java
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@ -1,16 +1,14 @@
// $RCSfile: MQSLoad.java,v $ // $RCSfile: MQSLoad.java,v $
// $Revision: 1.2 $ // $Revision: 1.3 $
// $Name: $ // $Name: $
// $Date: 2002/04/15 10:46:14 $ // $Date: 2002/04/19 15:22:14 $
// $Author: giberta1 $ // $Author: giberta1 $
/* /*
* 07/12/2001 - 11:45:14 * MQSLoad.java - Data file to MQ/Series queue loader
* * Copyright (C) 2001-2002 Arnaud G. Gibert
* MQSLoad.java - MQ/Seires data file to queue loader * arnaud.gibert@misys.com
* Copyright (C) 2001 Arnaud G. Gibert * www.miys-ibs.fr
* arnaud.gibert@midas-kapiti.fr
* www.midas-kapiti.fr
* *
* This program is free software; you can redistribute it and/or * This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License * modify it under the terms of the GNU General Public License
@ -42,16 +40,163 @@ public class MQSLoad
private String MsgQ_Name; private String MsgQ_Name;
private int MsgQ_Open_Options = MQC.MQOO_OUTPUT | MQC.MQOO_FAIL_IF_QUIESCING; private int MsgQ_Open_Options = MQC.MQOO_OUTPUT | MQC.MQOO_FAIL_IF_QUIESCING;
private String File_Name; private String File_Name;
private String Field_Break = "";
private String Message_Break = "\n";
public static void main( String args[])
//-------------------------------------------------------------------------------------------------------------------------
//
//-------------------------------------------------------------------------------------------------------------------------
public static void main( String args[])
{ {
new MQSLoad( args); new MQSLoad( args);
} }
private void MQSInit() throws Exception
//-------------------------------------------------------------------------------------------------------------------------
//
//-------------------------------------------------------------------------------------------------------------------------
public static String Str_Format( String Fmt)
{
int idx;
boolean esc = false;
String result = "";
for( idx = 0; idx < Fmt.length(); idx++)
{
if( esc)
{
switch( Fmt.charAt( idx))
{
case '/':
{
result = result + "\\";
break;
}
case 'n':
{
result = result + "\n";
break;
}
case 'r':
{
result = result + "\r";
break;
}
case 't':
{
result = result + "\t";
break;
}
default:
{
result = result + "?";
}
}
esc = false;
}
else
{
if( Fmt.charAt( idx) == '\\')
{
esc = true;
}
else
{
result = result + Fmt.charAt( idx);
}
}
}
return( result);
}
//-------------------------------------------------------------------------------------------------------------------------
//
//-------------------------------------------------------------------------------------------------------------------------
private void Arg_Parse( String args[]) throws Exception
{
int argc = 0;
try
{
while( argc < args.length)
{
if( args[argc].equals( "-fb"))
{
if( argc < ( args.length + 1))
{
Field_Break = Str_Format( args[++argc]);
}
else
{
System.out.println( "Invalid number of command line options...");
throw new Exception();
}
}
else if ( args[argc].equals( "-mb"))
{
if( argc < ( args.length + 1))
{
Message_Break = Str_Format( args[++argc]);
}
else
{
System.out.println( "Invalid number of command line options...");
throw new Exception();
}
}
else
{
MsgQ_Name = args[argc++];
File_Name = args[argc++];
if( argc < args.length)
{
System.out.println( "Invalid number of command line options...");
throw new Exception();
}
}
++argc;
}
}
catch( Exception Expt)
{
throw Expt;
}
}
//-------------------------------------------------------------------------------------------------------------------------
//
//-------------------------------------------------------------------------------------------------------------------------
private void MQSInit() throws Exception
{ {
try try
{ {
@ -81,6 +226,12 @@ public class MQSLoad
//-------------------------------------------------------------------------------------------------------------------------
//
//-------------------------------------------------------------------------------------------------------------------------
private void MQSDeInit() throws Exception private void MQSDeInit() throws Exception
{ {
try try
@ -99,6 +250,12 @@ public class MQSLoad
//-------------------------------------------------------------------------------------------------------------------------
//
//-------------------------------------------------------------------------------------------------------------------------
private void MQSPut_Msg( MQMessage Msg) throws Exception private void MQSPut_Msg( MQMessage Msg) throws Exception
{ {
try try
@ -115,70 +272,193 @@ public class MQSLoad
public MQSLoad( String args[])
//-------------------------------------------------------------------------------------------------------------------------
//
//-------------------------------------------------------------------------------------------------------------------------
private void Counter_Print( int Msg_Nb)
{
if( ( Msg_Nb % 50) == 0)
{
System.out.print( "\n(" + Msg_Nb + ")\t");
}
if( ( Msg_Nb % 10) == 0)
{
System.out.print( " ");
}
System.out.print( ".");
}
//-------------------------------------------------------------------------------------------------------------------------
//
//-------------------------------------------------------------------------------------------------------------------------
private void Load_File( BufferedInputStream Input_File) throws Exception
{ {
byte input_char; byte input_char;
int msg_nb = 0; int msg_nb = 0;
MQMessage output_msg = new MQMessage(); MQMessage output_msg = new MQMessage();
int buffer_size, cur_buffer_size, window_size, cur_window_size, prefetch_size, buffer_offset, read_size;
int cur_pos, end_pos, next_message, next_field;
byte[] buffer_byte;
String buffer_string, out_string = null;
try
{
output_msg.format = MQC.MQFMT_STRING;
window_size = 1024 * 64;
prefetch_size = Field_Break.length() + Message_Break.length();
buffer_size = window_size + prefetch_size;
buffer_offset = 0;
buffer_byte = new byte[buffer_size];
do
{
read_size = Input_File.read( buffer_byte, buffer_offset, buffer_size - buffer_offset);
// System.out.println( "Load buffer read_size: (" + read_size + ") asked: (" + (buffer_size - buffer_offset) + ")");
if( read_size > 0)
{
cur_window_size = Math.min( ( read_size + buffer_offset), window_size);
cur_buffer_size = ( read_size + buffer_offset);
buffer_string = new String( buffer_byte, 0, cur_buffer_size);
cur_pos = 0;
while( cur_pos < cur_window_size)
{
// System.out.println( "- CurPos: (" + cur_pos + ")");
next_message = buffer_string.indexOf( Message_Break, cur_pos);
if( ( next_message == -1) || ( next_message > cur_window_size))
{
next_message = cur_window_size + 1;
end_pos = cur_window_size;
}
else
{
// System.out.println( "+ Get message next_message: (" + next_message + ")");
end_pos = next_message;
}
while( cur_pos < end_pos)
{
// System.out.println( "+ CurPos: (" + cur_pos + ") end_pos: (" + end_pos + ")");
if( Field_Break.length() > 0)
{
next_field = buffer_string.indexOf( Field_Break, cur_pos);
}
else
{
next_field = -1;
}
if( ( next_field == -1) || ( next_field > end_pos))
{
out_string = buffer_string.substring( cur_pos, end_pos);
cur_pos = end_pos;
}
else
{
// System.out.println( "+ Get field next_field: (" + next_field + ")");
out_string = buffer_string.substring( cur_pos, next_field);
cur_pos = next_field + Field_Break.length();
}
output_msg.writeString( out_string);
}
if( next_message <= cur_window_size)
{
// System.out.println( "* Write Msg CurPos: (" + cur_pos + ")");
output_msg.messageId = MQC.MQMI_NONE;
MQSPut_Msg( output_msg);
output_msg.clearMessage();
out_string = null;
cur_pos += Message_Break.length();
Counter_Print( msg_nb++);
}
}
if( cur_buffer_size > cur_window_size)
{
buffer_offset = cur_buffer_size - cur_window_size;
System.arraycopy( buffer_byte, cur_window_size, buffer_byte, 0, buffer_offset);
}
}
}
while( read_size > 0);
if( out_string != null)
{
// System.out.println( "* Flushing Msg");
output_msg.messageId = MQC.MQMI_NONE;
MQSPut_Msg( output_msg);
Counter_Print( msg_nb++);
}
System.out.println( "\n");
}
catch( Exception Expt)
{
throw Expt;
}
}
//-------------------------------------------------------------------------------------------------------------------------
//
//-------------------------------------------------------------------------------------------------------------------------
public MQSLoad( String args[])
{
try try
{ {
if( args.length != 2) if( ( args.length < 2) || ( args.length > 6))
{ {
System.out.println( "Usage: MQSLoad <Output_MsgQueue_Name> <Input_File_Name>"); System.out.println( "Usage: MQSLoad [-fb \"field_break\"] [-mb \"message_break\"] <Output_MsgQueue_Name> <Input_File_Name>");
} }
else else
{ {
System.out.println( "MQS Load Starting..."); System.out.println( "MQS Load Starting...");
MsgQ_Name = args[0]; Arg_Parse( args);
File_Name = args[1];
System.out.println( "Output MsgQueue Name: (" + MsgQ_Name + ") Input File Name: (" + File_Name + ")"); System.out.println( "Output MsgQueue Name: (" + MsgQ_Name + ") Input File Name: (" + File_Name + ")");
System.out.println( "Field Break: (" + Field_Break + ") Message_Break: (" + Message_Break + ")");
MQSInit(); MQSInit();
try try
{ {
output_msg.format = MQC.MQFMT_STRING; BufferedInputStream input_file = new BufferedInputStream( new FileInputStream( File_Name));
BufferedInputStream input_file = new BufferedInputStream( new FileInputStream(File_Name));
try try
{ {
System.out.println("Input File Open: (" + input_file + ") !"); System.out.println("Input File Open: (" + input_file + ") !");
while( ( input_char = (byte)input_file.read()) != -1) Load_File( input_file);
{
switch( input_char)
{
case '\r':
case ';':
{
break;
}
case '\n':
{
System.out.println( "Sending Msg Nb (" + ++msg_nb + ") !");
output_msg.messageId = MQC.MQMI_NONE;
MQSPut_Msg(output_msg);
output_msg.clearMessage();
break;
}
default:
{
output_msg.writeByte( input_char);
break;
}
}
}
} }
catch( Exception Expt) catch( Exception Expt)