org.emftext.commons.jdt.resolve.JDTJavaClassifierUtil.java Source code

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Here is the source code for org.emftext.commons.jdt.resolve.JDTJavaClassifierUtil.java

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/*******************************************************************************
 * Copyright (c) 2006-2013
 * Software Technology Group, Dresden University of Technology
 * DevBoost GmbH, Berlin, Amtsgericht Charlottenburg, HRB 140026
 * 
 * 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:
 *   Software Technology Group - TU Dresden, Germany;
 *   DevBoost GmbH - Berlin, Germany
 *      - initial API and implementation
 ******************************************************************************/
package org.emftext.commons.jdt.resolve;

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.jdt.core.IJavaProject;
import org.eclipse.jdt.core.IType;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jdt.core.JavaModelException;
import org.emftext.commons.jdt.JDTJavaClassifier;

public abstract class JDTJavaClassifierUtil {

    /**
     * Returns the {@link IType} that corresponds to the given classifier.
     */
    public IType getIType(JDTJavaClassifier classifier) {

        String projectName = classifier.getProjectName();
        IWorkspace workspace = ResourcesPlugin.getWorkspace();
        IWorkspaceRoot root = workspace.getRoot();
        IProject project = root.getProject(projectName);
        IJavaProject javaProject = JavaCore.create(project);
        if (javaProject == null) {
            return null;
        }

        if (!javaProject.exists()) {
            return null;
        }

        String qualifiedName = classifier.getQualifiedName();
        try {
            IType type = javaProject.findType(qualifiedName);
            return type;
        } catch (JavaModelException e) {
            handleException(e);
            return null;
        }
    }

    /**
     * This is a template method that must be implemented by concrete subclasses
     * to handle exceptions that are thrown while executing
     * {@link #getIType(JDTJavaClassifier)}.
     */
    public abstract void handleException(Exception e);
}