org.polarsys.reqcycle.jdt.utils.JDTUtils.java Source code

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Here is the source code for org.polarsys.reqcycle.jdt.utils.JDTUtils.java

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/*******************************************************************************
 *  Copyright (c) 2013 AtoS
 *  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:
 *    Olivier Melois (AtoS) - initial API and implementation and/or initial documentation
 *******************************************************************************/
package org.polarsys.reqcycle.jdt.utils;

import java.net.URI;
import java.net.URISyntaxException;
import java.util.LinkedList;
import java.util.List;

import org.eclipse.core.resources.IFile;
import org.eclipse.jdt.core.ICompilationUnit;
import org.eclipse.jdt.core.IJavaElement;
import org.eclipse.jdt.internal.core.CompilationUnit;
import org.polarsys.reqcycle.jdt.model.JDTReachableObject;
import org.polarsys.reqcycle.uri.IReachableCreator;
import org.polarsys.reqcycle.uri.model.NullReachableObject;
import org.polarsys.reqcycle.uri.model.ReachableObject;
import org.polarsys.reqcycle.utils.inject.ZigguratInject;

import com.google.common.base.Joiner;

public class JDTUtils {
    public static final String PLATFORM = "platform:";
    public static final String SEPARATOR = "::";
    private static IReachableCreator creator = ZigguratInject.make(IReachableCreator.class);

    public static ReachableObject getReachable(IFile cu) {
        if ("java".equalsIgnoreCase(cu.getFileExtension())) {
            try {
                JDTReachableObject jdtReachableObject = new JDTReachableObject(
                        creator.getReachable(new URI(PLATFORM + cu.getFullPath().toString()), cu));
                ZigguratInject.inject(jdtReachableObject);
                return jdtReachableObject;
            } catch (URISyntaxException e) {
                e.printStackTrace();
            }
        }
        return null;
    }

    public static ReachableObject getReachable(IJavaElement cu) {
        URI uri;
        try {
            if (cu == null) {
                return new NullReachableObject();
            }
            String qualifiedURI = getQualifiedURI(cu);
            if (qualifiedURI == null) {
                return new NullReachableObject();
            }
            uri = new URI(qualifiedURI);
            JDTReachableObject object = new JDTReachableObject(creator.getReachable(uri, cu));
            ZigguratInject.inject(object);
            return object;
        } catch (URISyntaxException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return null;
    }

    protected static String getQualifiedURI(IJavaElement element) {
        StringBuilder result = new StringBuilder();
        if ((element == null) || (element.getResource() == null)) {
            return null;
        }
        result.append(PLATFORM).append(element.getResource().getFullPath().toString()).append("#");
        List<String> names = new LinkedList<String>();
        names.add(element.getElementName());
        IJavaElement parent = element.getParent();
        while (parent != null && !(parent instanceof ICompilationUnit)) {
            names.add(0, parent.getElementName());
            parent = parent.getParent();
        }
        result.append(Joiner.on(SEPARATOR).join(names));
        return result.toString();
    }
}