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new generate AST action

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git-svn-id: https://pmd.svn.sourceforge.net/svnroot/pmd/trunk@1539 51baf565-9d33-0410-a72c-fc3788e3496d
This commit is contained in:
Philippe Herlin
2003-03-17 23:28:49 +00:00
parent f9070a7110
commit 6bbd6cfbc6
1 changed files with 169 additions and 0 deletions
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pmd-eclipse/src/net/sourceforge/pmd/eclipse/actions/PMDGenerateASTAction.java Normal file
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package net.sourceforge.pmd.eclipse.actions;
import java.io.ByteArrayInputStream;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.util.Iterator;
import net.sourceforge.pmd.ast.JavaParser;
import net.sourceforge.pmd.ast.ParseException;
import net.sourceforge.pmd.ast.SimpleNode;
import net.sourceforge.pmd.eclipse.PMDConstants;
import net.sourceforge.pmd.eclipse.PMDPlugin;
import org.eclipse.core.resources.IContainer;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IFolder;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.jdt.core.ICompilationUnit;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.ui.IObjectActionDelegate;
import org.eclipse.ui.IWorkbenchPart;
/**
* Process PMDGenerateAST action menu.
* Generate a AST from the selected file.
*
* @author Philippe Herlin
* @version $Revision$
*
* $Log$
* Revision 1.1 2003/03/17 23:28:49 phherlin
* new generate AST action
*
*/
public class PMDGenerateASTAction implements IObjectActionDelegate {
private IWorkbenchPart targetPart;
private static final String INDENT = "\t";
/**
* @see org.eclipse.ui.IObjectActionDelegate#setActivePart(IAction, IWorkbenchPart)
*/
public void setActivePart(IAction action, IWorkbenchPart targetPart) {
this.targetPart = targetPart;
}
/**
* @see org.eclipse.ui.IActionDelegate#run(IAction)
*/
public void run(IAction action) {
ISelection sel = targetPart.getSite().getSelectionProvider().getSelection();
if (sel instanceof IStructuredSelection) {
IStructuredSelection structuredSel = (IStructuredSelection) sel;
for (Iterator i = structuredSel.iterator(); i.hasNext();) {
Object element = i.next();
if (element instanceof IFile) {
generateAST((IFile) element);
} else if (element instanceof ICompilationUnit) {
IResource resource = ((ICompilationUnit) element).getResource();
generateAST((IFile) resource);
} // else no processing for other types
}
}
}
/**
* @see org.eclipse.ui.IActionDelegate#selectionChanged(IAction, ISelection)
*/
public void selectionChanged(IAction action, ISelection selection) {
}
/**
* Generate a AST for a file
* @param file a file
*/
private void generateAST(IFile file) {
try {
JavaParser parser = new JavaParser(file.getContents());
SimpleNode root = parser.CompilationUnit();
StringWriter sr = new StringWriter();
PrintWriter pr = new PrintWriter(sr);
pr.println("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
dump(root, pr, "");
pr.flush();
String name = file.getName();
int dotPosition = name.indexOf('.');
String astName = name.substring(0, dotPosition) + ".ast";
IFile astFile = null;
IContainer parent = file.getParent();
if (parent instanceof IFolder) {
astFile = ((IFolder) parent).getFile(astName);
} else if (parent instanceof IProject) {
astFile = ((IProject) parent).getFile(astName);
}
if (astFile != null) {
if (astFile.exists()) {
astFile.delete(false, null);
}
ByteArrayInputStream astInputStream = new ByteArrayInputStream(sr.toString().getBytes());
astFile.create(astInputStream, false, null);
}
} catch (CoreException e) {
MessageDialog.openError(
null,
PMDPlugin.getDefault().getMessage(PMDConstants.MSGKEY_ERROR_TITLE),
PMDPlugin.getDefault().getMessage(PMDConstants.MSGKEY_ERROR_CORE_EXCEPTION) + e.getMessage());
} catch (ParseException e) {
MessageDialog.openError(
null,
PMDPlugin.getDefault().getMessage(PMDConstants.MSGKEY_ERROR_TITLE),
PMDPlugin.getDefault().getMessage(PMDConstants.MSGKEY_ERROR_PMD_EXCEPTION) + e.getMessage());
}
}
/**
* Dump a node and its subnodes -> recursive
* @param node a node
* @param out a print writer to write into
* @param prefix texte to print before the name of the node
*/
private void dump(SimpleNode node, PrintWriter out, String prefix) {
StringBuffer sb = new StringBuffer(prefix);
sb.append("<").append(node.toString());
if (node.jjtGetNumChildren() == 0) {
if (node.getImage() != null) {
sb.append(">").append(node.getImage()).append("</").append(node.toString()).append(">");
} else {
sb.append("/>");
}
out.println(sb.toString());
} else {
sb
.append(" beginLine=\"")
.append(node.getBeginLine())
.append("\"")
.append(" beginColumn=\"")
.append(node.getBeginColumn())
.append("\"")
.append(" endLine=\"")
.append(node.getEndLine())
.append("\"")
.append(" endColumn=\"")
.append(node.getEndColumn())
.append("\"")
.append(">");
if (node.getImage() != null) {
sb.append(System.getProperty("line.separator")).append(prefix).append(INDENT).append(node.getImage());
}
out.println(sb.toString());
for (int i = 0; i < node.jjtGetNumChildren(); i++) {
dump((SimpleNode) node.jjtGetChild(i), out, prefix + INDENT);
}
out.println(prefix + "</" + node.toString() + ">");
}
}
}