java - Post-compilation custom action over source code? -

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i need before compilation process of code *.java
actions on them
applied on target files not source files

for example action
comment system.out.println(""); statements

need output target files generated without print statements
source code files still print statements

note : development under eclipse ide

are sure you’re using right tool task?

it’s simpler use static final boolean variable controlling whether code fragments ought executed. may arrange value compile time constant; in case code disabled via flag not present in resulting byte code. may runtime configuration, e.g.

static final boolean debug = boolean.getboolean("myapp.debug");

…

if(debug) system.out.println(something);

in case command line option -dmyapp.debug=true may enable printout.

there no performance difference between these variants ( , pre-processing approach well). jit smart enough eliminate conditional code @ runtime.


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