/*******************************************************************************
* Copyright (c) 2012 BestSolution.at and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Tom Schindl<tom.schindl@bestsolution.at> - initial API and implementation
*******************************************************************************/
package at.bestsolution.efxclipse.tooling.converter;
import java.io.ByteArrayInputStream;
import java.util.Map;
import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.expressions.IEvaluationContext;
import org.eclipse.core.resources.IContainer;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.core.runtime.Path;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jdt.core.ToolFactory;
import org.eclipse.jdt.core.formatter.CodeFormatter;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.ui.ISources;
public abstract class AbstractConverterHandler extends AbstractHandler {
@Override
public Object execute(ExecutionEvent event) throws ExecutionException {
IEvaluationContext context = (IEvaluationContext) event
.getApplicationContext();
ISelection s = (ISelection) context
.getVariable(ISources.ACTIVE_MENU_SELECTION_NAME);
if (s instanceof IStructuredSelection) {
Object o = ((IStructuredSelection) s).getFirstElement();
if (o instanceof IFile) {
IFile f = (IFile) o;
IContainer folder = f.getParent();
IFile outFile = folder.getFile(new Path(f.getName().substring(
0,
f.getName().length() - f.getFileExtension().length()
- 1)
+ getTargetFileExtension()));
String content = convert(outFile, f);
IProject project = outFile.getProject();
Object codeFormatter = createCodeFormatter(project);
if (codeFormatter != null) {
content = format(content, (CodeFormatter) codeFormatter);
}
if (!outFile.exists()) {
try {
outFile.create(
new ByteArrayInputStream(content.getBytes()),
true, new NullProgressMonitor());
} catch (CoreException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} else {
try {
outFile.setContents(
new ByteArrayInputStream(content.getBytes()),
IResource.KEEP_HISTORY | IResource.FORCE,
new NullProgressMonitor());
} catch (CoreException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
return null;
}
protected abstract String convert(IFile outFile, IFile file)
throws ExecutionException;
protected abstract String getTargetFileExtension();
protected String format(String content, CodeFormatter codeFormatter) {
return content;
}
public static Object createCodeFormatter(IProject project) {
IJavaProject javaProject = JavaCore.create(project);
Map options = javaProject.getOptions(true);
return ToolFactory.createCodeFormatter(options);
}
}