org.eclipse.osee.coverage.editor.xcover.CoverageContentProvider.java Source code

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Here is the source code for org.eclipse.osee.coverage.editor.xcover.CoverageContentProvider.java

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/*******************************************************************************
 * Copyright (c) 2004, 2007 Boeing.
 * 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:
 *     Boeing - initial API and implementation
 *******************************************************************************/
package org.eclipse.osee.coverage.editor.xcover;

import java.util.Collection;
import org.apache.commons.lang.ArrayUtils;
import org.eclipse.jface.viewers.ITreeContentProvider;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.osee.coverage.merge.IMergeItem;
import org.eclipse.osee.coverage.merge.MergeItem;
import org.eclipse.osee.coverage.merge.MergeItemGroup;
import org.eclipse.osee.coverage.merge.MessageMergeItem;
import org.eclipse.osee.coverage.model.CoverageItem;
import org.eclipse.osee.coverage.model.CoveragePackageBase;
import org.eclipse.osee.coverage.model.CoverageUnit;
import org.eclipse.osee.coverage.model.MessageCoverageItem;

public class CoverageContentProvider implements ITreeContentProvider {

    public CoverageContentProvider(CoverageXViewer coverageXViewer) {
        super();
    }

    @Override
    public Object[] getChildren(Object parentElement) {
        if (parentElement instanceof CoveragePackageBase) {
            Collection<?> children = ((CoveragePackageBase) parentElement).getChildren();
            return children.toArray(new Object[children.size()]);
        }
        if (parentElement instanceof CoverageUnit) {
            Collection<?> children = ((CoverageUnit) parentElement).getChildren();
            return children.toArray(new Object[children.size()]);
        }
        if (parentElement instanceof MergeItem) {
            Collection<?> children = ((IMergeItem) parentElement).getChildren();
            return children.toArray(new Object[children.size()]);
        }
        if (parentElement instanceof MergeItemGroup) {
            Collection<?> children = ((MergeItemGroup) parentElement).getChildren();
            return children.toArray(new Object[children.size()]);
        }
        if (parentElement instanceof Object[]) {
            return (Object[]) parentElement;
        }
        if (parentElement instanceof Collection) {
            return ((Collection<?>) parentElement).toArray();
        }
        return ArrayUtils.EMPTY_OBJECT_ARRAY;
    }

    @Override
    public Object getParent(Object element) {
        if (element instanceof CoverageUnit) {
            return ((CoverageUnit) element).getParent();
        }
        if (element instanceof CoverageItem) {
            return ((CoverageItem) element).getParent();
        }
        return null;
    }

    @Override
    public boolean hasChildren(Object element) {
        return getChildren(element).length > 0;
    }

    @Override
    public Object[] getElements(Object inputElement) {
        if (inputElement instanceof MessageMergeItem) {
            return new Object[] { inputElement };
        }
        if (inputElement instanceof MessageCoverageItem) {
            return new Object[] { inputElement };
        }
        return getChildren(inputElement);
    }

    @Override
    public void dispose() {
        // do nothing
    }

    @Override
    public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
        // do nothing
    }

}