org.jboss.tools.windup.model.domain.ConfigurationResourceUtil.java Source code

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Here is the source code for org.jboss.tools.windup.model.domain.ConfigurationResourceUtil.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.domain;

import java.util.List;

import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResource;
import org.eclipse.jdt.core.IPackageFragment;
import org.eclipse.jdt.core.IPackageFragmentRoot;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.jdt.internal.core.JavaProject;
import org.jboss.tools.windup.model.Activator;
import org.jboss.tools.windup.windup.ConfigurationElement;
import org.jboss.tools.windup.windup.Input;

import com.google.common.collect.Lists;

/**
 * Utility for working with ConfigurationElement's resources (projects and packages).
 */
@SuppressWarnings("restriction")
public class ConfigurationResourceUtil {

    public static IProject[] getCurrentProjects(ConfigurationElement configuration) {
        List<IProject> projects = Lists.newArrayList();
        for (int i = 0; i < configuration.getInputs().size(); i++) {
            Input input = configuration.getInputs().get(i);
            IProject project = (IProject) WorkspaceResourceUtils.findResource(input.getUri());
            if (project != null) {
                projects.add(project);
            }
        }
        return projects.toArray(new IProject[projects.size()]);
    }

    public static IPackageFragment[] getCurrentPackages(ConfigurationElement configuration) {
        IPackageFragment[] packages = new IPackageFragment[configuration.getPackages().size()];
        for (int i = 0; i < configuration.getPackages().size(); i++) {
            String aPackage = configuration.getPackages().get(i);
            IResource resource = (IResource) WorkspaceResourceUtils.findResource(aPackage);
            packages[i] = (IPackageFragment) JavaCore.create(resource);
        }
        return packages;
    }

    public static IPackageFragment[] computePackages(ConfigurationElement configuration) {
        List<IPackageFragment> packages = Lists.newArrayList();
        List<IPackageFragment> currentFragments = Lists.newArrayList(getCurrentPackages(configuration));
        for (IProject project : getCurrentProjects(configuration)) {
            JavaProject javaProject = (JavaProject) JavaCore.create(project);
            try {
                for (IPackageFragmentRoot root : javaProject.getPackageFragmentRoots()) {
                    if (root.getKind() == IPackageFragmentRoot.K_SOURCE) {
                        for (Object obj : root.getChildren()) {
                            if (obj instanceof IPackageFragment) {
                                IPackageFragment fragment = (IPackageFragment) obj;
                                if (fragment.hasChildren() && !currentFragments.contains(fragment)) {
                                    packages.add(fragment);
                                }
                            }
                        }
                    }
                }
            } catch (JavaModelException e) {
                Activator.log(e);
            }
        }
        return packages.stream().toArray(IPackageFragment[]::new);
    }
}