package astsimple.actions;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IWorkspace;
import org.eclipse.core.resources.IWorkspaceRoot;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.jdt.core.ICompilationUnit;
import org.eclipse.jdt.core.IPackageFragment;
import org.eclipse.jdt.core.IPackageFragmentRoot;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jdt.core.dom.AST;
import org.eclipse.jdt.core.dom.ASTParser;
import org.eclipse.jdt.core.dom.CompilationUnit;
import org.eclipse.jdt.core.dom.MethodDeclaration;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.IWorkbenchWindowActionDelegate;
/**
* Our sample action implements workbench action delegate.
* The action proxy will be created by the workbench and
* shown in the UI. When the user tries to use the action,
* this delegate will be created and execution will be
* delegated to it.
* @see IWorkbenchWindowActionDelegate
*/
public class MethodVisitorAction implements IWorkbenchWindowActionDelegate {
private IWorkbenchWindow window;
/**
* The constructor.
*/
public MethodVisitorAction() {
}
/**
* The action has been activated. The argument of the
* method represents the 'real' action sitting
* in the workbench UI.
* @see IWorkbenchWindowActionDelegate#run
*/
public void run(IAction action) {
IWorkspace workspace = ResourcesPlugin.getWorkspace();
IWorkspaceRoot root = workspace.getRoot();
IProject[] projects = root.getProjects();
for (IProject project : projects){
try {
if (project.isNatureEnabled("org.eclipse.jdt.core.javanature")){
IPackageFragment[] packages = JavaCore.create(project).getPackageFragments();
for (IPackageFragment mypackage : packages){
if (mypackage.getKind() == IPackageFragmentRoot.K_SOURCE){
for (ICompilationUnit unit : mypackage.getCompilationUnits()){
CompilationUnit parse = parse(unit);
MethodVisitor visitor = new MethodVisitor();
parse.accept(visitor);
}
}
}
}
} catch (CoreException e){
e.printStackTrace();
}
}
}
/**
* Reads a ICompilationUnit and creates the AST DOM for manipulating the
* Java source file
*
* @param unit
* @return
*/
private static CompilationUnit parse(ICompilationUnit unit) {
ASTParser parser = ASTParser.newParser(AST.JLS3);
parser.setKind(ASTParser.K_COMPILATION_UNIT);
parser.setSource(unit);
parser.setResolveBindings(true);
return (CompilationUnit) parser.createAST(null); // parse
}
/**
* Selection in the workbench has been changed. We
* can change the state of the 'real' action here
* if we want, but this can only happen after
* the delegate has been created.
* @see IWorkbenchWindowActionDelegate#selectionChanged
*/
public void selectionChanged(IAction action, ISelection selection) {
}
/**
* We can use this method to dispose of any system
* resources we previously allocated.
* @see IWorkbenchWindowActionDelegate#dispose
*/
public void dispose() {
}
/**
* We will cache window object in order to
* be able to provide parent shell for the message dialog.
* @see IWorkbenchWindowActionDelegate#init
*/
public void init(IWorkbenchWindow window) {
this.window = window;
}
}