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Java example source code file (gcCauseOutput1.awk)

This example Java source code file (gcCauseOutput1.awk) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

ccs, fgc, fgct, gct, lgcc, ygct

The gcCauseOutput1.awk Java example source code

#
# matching the following output specified as a pattern that verifies
# that the numerical values conform to a specific pattern, rather than
# specific values.
#
#  S0     S1     E      O      M     CCS    YGC     YGCT    FGC    FGCT     GCT    LGCC                 GCC                 
#  0.00   0.00   0.00   9.97  90.94  87.70      2    0.013     0    0.000    0.013 Allocation Failure   No GC


BEGIN	{
	    headerlines=0; datalines=0; totallines=0
	}

/^  S0     S1     E      O      M     CCS    YGC     YGCT    FGC    FGCT     GCT    LGCC                 GCC                 $/	{
	    headerlines++;
	}

# The following pattern does not verify the validity of the gc cause
# string as the values can vary depending on conditions out of our
# control. To accomodate this variability, the pattern matcher simply
# detects that there are two strings that match a specific pattern
# where the first character is a letter followed by a sequence of zero
# or more letters and spaces. It also provides for the ".", "(", and ")"
# characters to allow for the string "System.gc()".
#
/^[ ]*[0-9]+\.[0-9]+[ ]*[0-9]+\.[0-9]+[ ]*[0-9]+\.[0-9]+[ ]*[0-9]+\.[0-9]+[ ]*[0-9]+\.[0-9]+[ ]*([0-9]+\.[0-9]+)|-[ ]*[0-9]+[ ]*[0-9]+\.[0-9]+[ ]*[0-9]+[ ]*[0-9]+\.[0-9]+[ ]*[0-9]+\.[0-9]+[ ]*[a-zA-Z]+[a-zA-Z \.\(\)]*[ ]*[a-zA-Z]+[a-zA-Z \.\(\)]*$/	{
	    datalines++;
	}

	{ totallines++; print $0 }

END	{
	    if ((headerlines == 1) && (datalines == 1) && (totallines == 2)) {
	        exit 0
	    }
	    else {
	        exit 1
	    }
	}

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