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WARNING: Fix a big bug in Load_File() method: all previous MQSLoad versions can corrupt messages during loading !!!

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agibert 2008-11-14 00:00:51 +00:00
parent 67b4a7aa8b
commit f12bcae985
2 changed files with 87 additions and 73 deletions
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150
MQSLoad.java
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@ -1,7 +1,7 @@
// $RCSfile: MQSLoad.java,v $ // $RCSfile: MQSLoad.java,v $
// $Revision: 1.12 $ // $Revision: 1.13 $
// $Name: $ // $Name: $
// $Date: 2008/11/10 01:50:19 $ // $Date: 2008/11/14 00:00:51 $
// $Author: agibert $ // $Author: agibert $
/* /*
@ -45,9 +45,9 @@ public class MQSLoad
private String Message_Break = "\r\n"; private String Message_Break = "\r\n";
private String Message_Tail = ""; private String Message_Tail = "";
private boolean Keep_Message_Break = false; private boolean Keep_Message_Break = false;
private String MQSLoad_Revision = "$Revision: 1.12 $"; private String MQSLoad_Revision = "$Revision: 1.13 $";
private String MQSLoad_Tag = "$Name: $"; private String MQSLoad_Tag = "$Name: $";
private String MQSLoad_Date = "$Date: 2008/11/10 01:50:19 $"; private String MQSLoad_Date = "$Date: 2008/11/14 00:00:51 $";
private String MQSLoad_Author = "$Author: agibert $"; private String MQSLoad_Author = "$Author: agibert $";
private Integer Sleep_Time = 0; private Integer Sleep_Time = 0;
@ -457,6 +457,7 @@ public class MQSLoad
output_msg.format = MQC.MQFMT_STRING; output_msg.format = MQC.MQFMT_STRING;
/* Default window size */
window_size = 1024 * 64; window_size = 1024 * 64;
prefetch_size = Field_Break.length() + Message_Break.length(); prefetch_size = Field_Break.length() + Message_Break.length();
buffer_size = window_size + prefetch_size; buffer_size = window_size + prefetch_size;
@ -468,89 +469,100 @@ public class MQSLoad
do do
{ {
read_size = Input_File.read( buffer_byte, buffer_offset, buffer_size - buffer_offset); 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) + ")"); // System.out.println( "Load buffer read_size: (" + read_size + ") asked: (" + (buffer_size - buffer_offset) + ")");
if( read_size > 0) if( read_size == -1)
{ {
cur_window_size = Math.min( ( read_size + buffer_offset), window_size); read_size = 0;
cur_buffer_size = ( read_size + buffer_offset); }
buffer_string = new String( buffer_byte, 0, cur_buffer_size); /* Compute current buffer and window size */
cur_pos = 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( " CurWS: (" + cur_window_size + ") CurBS: (" + cur_buffer_size + ") Buffer: [" + buffer_string + "]");
{
// System.out.println( "- CurPos: (" + cur_pos + ")"); while( cur_pos < cur_window_size)
next_message = buffer_string.indexOf( Message_Break, cur_pos); {
// System.out.println( "- CurPos: (" + cur_pos + ")");
next_message = buffer_string.indexOf( Message_Break, cur_pos);
if( ( next_message == -1) || ( next_message > cur_window_size)) 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_message = cur_window_size + 1; next_field = buffer_string.indexOf( Field_Break, cur_pos);
end_pos = cur_window_size;
} }
else else
{ {
// System.out.println( "+ Get message next_message: (" + next_message + ")"); next_field = -1;
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)) if( ( next_field == -1) || ( next_field > end_pos))
{ {
out_string = buffer_string.substring( cur_pos, end_pos); out_string = buffer_string.substring( cur_pos, end_pos);
cur_pos = end_pos; cur_pos = end_pos;
} }
else else
{ {
// System.out.println( "+ Get field next_field: (" + next_field + ")"); // System.out.println( "+ Get field next_field: (" + next_field + ")");
out_string = buffer_string.substring( cur_pos, next_field); out_string = buffer_string.substring( cur_pos, next_field);
cur_pos = next_field + Field_Break.length(); cur_pos = next_field + Field_Break.length();
} }
output_msg.writeString( out_string); output_msg.writeString( out_string);
} // System.out.println( "* Msg: [" + out_string + "]");
if( next_message <= cur_window_size)
{
// System.out.println( "* Write Msg CurPos: (" + cur_pos + ")");
output_msg.writeString( Message_Tail);
if( Keep_Message_Break)
{
output_msg.writeString( Message_Break);
}
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++);
Stand_By( Sleep_Time);
}
} }
if( cur_buffer_size > cur_window_size) if( next_message <= cur_window_size)
{ {
buffer_offset = cur_buffer_size - cur_window_size; /* A message break has been found: send the data... */
System.arraycopy( buffer_byte, cur_window_size, buffer_byte, 0, buffer_offset); // System.out.println( "* Write Msg CurPos: (" + cur_pos + ")");
output_msg.writeString( Message_Tail);
if( Keep_Message_Break)
{
output_msg.writeString( Message_Break);
}
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++);
Stand_By( Sleep_Time);
} }
} }
buffer_offset = cur_buffer_size - cur_pos;
// System.out.println( "% CurPos: (" + cur_pos + ") BufOff: (" + buffer_offset + ")");
if( buffer_offset > 0)
{
/* Copy back prefetch area */
System.arraycopy( buffer_byte, cur_pos, buffer_byte, 0, buffer_offset);
}
} }
while( read_size > 0); while( cur_buffer_size > 0);
if( out_string != null) if( out_string != null)
{ {

10
ReleaseNotes.txt
View File

@ -1,7 +1,7 @@
# $RCSfile: ReleaseNotes.txt,v $ # $RCSfile: ReleaseNotes.txt,v $
# $Revision: 1.10 $ # $Revision: 1.11 $
# $Name: $ # $Name: $
# $Date: 2008/11/10 01:50:19 $ # $Date: 2008/11/14 00:00:51 $
# $Author: agibert $ # $Author: agibert $
@ -9,10 +9,12 @@
-------------------------------------------------------------------------------- --------------------------------------------------------------------------------
MQSLoad V 1.3.2 - A. Gibert - 2008/11/10 MQSLoad V 1.3.2 - A. Gibert - 2008/11/14
-------------------------------------------------------------------------------- --------------------------------------------------------------------------------
Fix elapsed time computation ! - WARNING: Fix a big bug in Load_File() method: all previous MQSLoad versions
can corrupt messages during loading !!!
- Fix elapsed time computation !