org.eclipse.n4js.ui.wizard.dependencies.RunnableSettingsFilesLocator.java Source code

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Here is the source code for org.eclipse.n4js.ui.wizard.dependencies.RunnableSettingsFilesLocator.java

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/**
 * Copyright (c) 2018 NumberFour AG.
 * 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:
 *   NumberFour AG - Initial API and implementation
 */
package org.eclipse.n4js.ui.wizard.dependencies;

import java.io.File;
import java.lang.reflect.InvocationTargetException;
import java.util.Collection;
import java.util.Collections;

import org.apache.log4j.Logger;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.SubMonitor;
import org.eclipse.jface.operation.IRunnableWithProgress;

/**
 * Runnable collector of the workspace projects setting files.
 */
public class RunnableSettingsFilesLocator implements IRunnableWithProgress {
    private static final Logger LOGGER = Logger.getLogger(RunnableSettingsFilesLocator.class);
    private ProjectsSettingsFilesLocator files = null;

    @Override
    synchronized public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException {
        int projectsCount = ResourcesPlugin.getWorkspace().getRoot().getProjects().length;
        int estimate = projectsCount > 0 ? projectsCount : 100;
        final SubMonitor subMonitor = SubMonitor.convert(monitor, 3 * estimate);
        final SubMonitor subMonitor0 = subMonitor.split(estimate);
        refreshWorkspace(subMonitor0);

        final SubMonitor subMonitor1 = subMonitor.split(2 * estimate);
        files = ProjectsSettingsFilesLocator.findFiles(subMonitor1);

    }

    private void refreshWorkspace(IProgressMonitor monitor) {
        try {
            ResourcesPlugin.getWorkspace().getRoot().refreshLocal(IResource.DEPTH_INFINITE, monitor);
        } catch (CoreException e) {
            LOGGER.error("Error when refreshing workspace", e);
        }
    }

    /** get collected files */
    synchronized public Collection<File> getCollectedConfigFiles() {
        if (files == null)
            return Collections.emptySet();
        return files.getNPMRCs();
    }

}