com.synflow.ngDesign.ui.internal.navigator.CxComparator.java Source code

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Here is the source code for com.synflow.ngDesign.ui.internal.navigator.CxComparator.java

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/*******************************************************************************
 * Copyright (c) 2014 Synflow SAS.
 * 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:
 *    Matthieu Wipliez - initial API and implementation and/or initial documentation
 *******************************************************************************/
package com.synflow.ngDesign.ui.internal.navigator;

import org.eclipse.core.resources.IContainer;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IProject;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerComparator;

import com.synflow.core.layout.ITreeElement;
import com.synflow.core.layout.Package;
import com.synflow.core.layout.SourceFolder;
import com.synflow.cx.cx.CxEntity;

/**
 * This class defines a simple sorter for our Project Explorer view.
 * 
 * @author Matthieu Wipliez
 * 
 */
public class CxComparator extends ViewerComparator {

    private static final int OTHERS = 51;

    private static final int PACKAGEFRAGMENT = 3;

    private static final int PACKAGEFRAGMENTROOTS = 2;

    private static final int PROJECTS = 1;

    private static final int RESOURCEFOLDERS = 7;

    private static final int RESOURCES = 8;

    @Override
    public int category(Object element) {
        if (element instanceof IProject) {
            return PROJECTS;
        } else if (element instanceof SourceFolder) {
            return PACKAGEFRAGMENTROOTS;
        } else if (element instanceof Package) {
            return PACKAGEFRAGMENT;
        } else if (element instanceof IContainer) {
            return RESOURCEFOLDERS;
        } else if (element instanceof IFile) {
            return RESOURCES;
        }
        return OTHERS;
    }

    @Override
    @SuppressWarnings("unchecked")
    public int compare(Viewer viewer, Object e1, Object e2) {
        int cat1 = category(e1);
        int cat2 = category(e2);

        if (cat1 != cat2) {
            return cat1 - cat2;
        }

        String name1 = getElementName(e1);
        String name2 = getElementName(e2);

        // use the comparator to compare the strings
        int result = getComparator().compare(name1, name2);
        return result;
    }

    private String getElementName(Object element) {
        if (element instanceof CxEntity) {
            return ((CxEntity) element).getName();
        } else if (element instanceof ITreeElement) {
            return ((ITreeElement) element).getName();
        } else {
            return element.toString();
        }
    }

}