org.jboss.tools.windup.model.edit.domain.ConfigurationElementTreeContentProvider.java Source code

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Here is the source code for org.jboss.tools.windup.model.edit.domain.ConfigurationElementTreeContentProvider.java

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/*******************************************************************************
 * Copyright (c) 2016 Red Hat, Inc.
 * Distributed under license by Red Hat, Inc. All rights reserved.
 * This program is 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:
 *   Red Hat, Inc. - initial API and implementation
 ******************************************************************************/
package org.jboss.tools.windup.model.edit.domain;

import static org.jboss.tools.windup.model.domain.WindupConstants.SYNCH;

import java.util.List;

import javax.inject.Inject;

import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.Path;
import org.eclipse.e4.core.di.annotations.Optional;
import org.eclipse.e4.ui.di.UIEventTopic;
import org.eclipse.emf.common.notify.AdapterFactory;
import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.edit.provider.IStructuredItemContentProvider;
import org.eclipse.emf.edit.ui.provider.AdapterFactoryContentProvider;
import org.eclipse.jdt.core.IJavaElement;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.swt.widgets.Display;
import org.jboss.tools.windup.model.domain.ModelService;
import org.jboss.tools.windup.windup.ConfigurationElement;
import org.jboss.tools.windup.windup.WindupModel;
import org.jboss.tools.windup.windup.WindupResult;
import org.jboss.windup.tooling.data.Hint;

import com.google.common.collect.Lists;

/**
 * The content provider Windup's configuration element tree.
 */
public class ConfigurationElementTreeContentProvider extends AdapterFactoryContentProvider {

    private boolean synched;

    @Inject
    public ConfigurationElementTreeContentProvider(ModelService modelService, AdapterFactory adapterFactory) {
        super(adapterFactory);
        adapterFactory.adapt(modelService.getModel(), IStructuredItemContentProvider.class);
    }

    @Inject
    @Optional
    private void synch(@UIEventTopic(SYNCH) Boolean synch) {
        this.synched = synch;
        viewer.refresh();
    }

    @Override
    public Object[] getChildren(Object object) {
        if (object instanceof ConfigurationElement) {
            return getChildren((ConfigurationElement) object);
        }
        return new Object[0];
    }

    @Override
    public Object[] getElements(Object object) {
        if (object instanceof WindupModel) {
            List<ConfigurationElement> configurations = ((WindupModel) object).getConfigurationElements();
            return configurations.toArray(new Object[configurations.size()]);
        }
        return new Object[0];
    }

    @Override
    public boolean hasChildren(Object object) {
        if (!synched) {
            return false;
        }
        if (object instanceof ConfigurationElement) {
            return getChildren((ConfigurationElement) object).length > 0;
        }
        return false;
    }

    private Object[] getChildren(ConfigurationElement configuration) {
        WindupResult windupResult = configuration.getWindupResult();
        if (windupResult != null && windupResult.getExecutionResults() != null) {
            List<Object> children = Lists.newArrayList();
            children.add(windupResult);
            for (Hint hint : windupResult.getExecutionResults().getHints()) {
                IFile resource = ResourcesPlugin.getWorkspace().getRoot()
                        .getFileForLocation(new Path(hint.getFile().getAbsolutePath()));
                IJavaElement element = JavaCore.create(resource);
                IJavaElement parent = element.getParent();
            }
            return children.toArray(new Object[children.size()]);
        }
        return new Object[0];
    }

    @Override
    public void notifyChanged(Notification notification) {
        if (viewer != null && viewer.getControl() != null && !viewer.getControl().isDisposed()) {
            Display.getDefault().asyncExec(() -> {
                viewer.refresh();
                ((TreeViewer) viewer).expandAll();
            });
        }
    }
}