java - Counting Methods declaration + Methods Calls in a class using JavaParser -
i'm trying code rfc metric (response class), counts method declarations + method calls.
method declarations works fine, got problem @ counting method calls using javaparser api.
here code:
public class methodprinter { public static void main(string[] args) throws exception { // creates input stream file parsed fileinputstream in = new fileinputstream("d://test.java"); compilationunit cu; try { // parse file cu = javaparser.parse(in); } { in.close(); } // visit , print methods names methodvisitor mv =new methodvisitor(); cu.accept(new voidvisitoradapter<void>(){ @override public void visit(final methodcallexpr n, final void arg){ system.out.println("method call :"+n); super.visit(n, arg); } }, null); } } test.java
package test; import java.util.*; public class classa { private int test; private classb classb = new classb(); public void dosomething(int t){ system.out.println ( tostring()); int i= dosomethingbasedonclassbbv(classb.tostring()); } protected void dosomethingbasedonclassb(){ system.out.println (classb.tostring()); } } public class classb { private classa classa = new classa(); public void dosomethingbasedoneclassa(){ system.out.println (classa.tostring()); } private string tostring(){ return "classb"; } private string tostring(){ return "classb"; } public void dosomethingbasedoneclassa(){ system.out.println (classa.tostring()); } protected void dosomethingbasedonclassb(){ system.out.println (classb.tostring()); } } the result of code:
*method call :system.out.println(tostring()) method call :tostring() method call :dosomethingbasedonclassbbv(classb.tostring()) method call :classb.tostring() method call :system.out.println(classb.tostring()) method call :classb.tostring() method call :system.out.println(classa.tostring()) method call :classa.tostring() method call :system.out.println(classa.tostring()) method call :classa.tostring() method call :system.out.println(classb.tostring()) method call :classb.tostring()* indeed, code inspects method calls, in case don't want count libraries method calls system.out.println(tostring()), want count tostring().
if got better code, or api use... welcomed, thank in advance.
you cannot resolve issue using exclusively parser, because need resolve method call , find out if call method part of standard library.
you can using javasymbolsolver, library created complement javaparser. in practice call:
javaparserfacade.solvemethodasusage(mymethodcallexpr)
and methoddeclaration tells type on method defined. once have type can @ package , check if starts java or javax , exclude it.
