SRPMImportOperation.java

/*******************************************************************************
 * Copyright (c) 2004-2013 Red Hat, Inc.
 * 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:
 *     Red Hat - initial API and implementation
 *******************************************************************************/
package org.eclipse.linuxtools.rpm.ui;

import java.io.File;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;

import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.MultiStatus;
import org.eclipse.core.runtime.SubMonitor;
import org.eclipse.jface.operation.IRunnableWithProgress;
import org.eclipse.linuxtools.internal.rpm.ui.Messages;
import org.eclipse.linuxtools.rpm.core.RPMProject;
import org.eclipse.linuxtools.rpm.core.RPMProjectLayout;
import org.eclipse.ui.PlatformUI;

/**
 * Import Operation Class for RPM plug-in. This allows us to abstract the operations
 *  to  a utility class which also inherits IRunnableWithProgress that allows use of
 * progress bar
 */

public class SRPMImportOperation implements IRunnableWithProgress {
    private IProject project;
    private File sourceRPM;
    private URL remoteSRPM;
    private RPMProjectLayout projectLayout;

    private List<CoreException> rpmErrorTable;

    /**
     * Method SRPMImportOperation.
     * @param project The project to import into.
     * @param sourceRPM The source rpm to import.
     * @param rpmProjectLayout The required layout of the project.
     */
    public SRPMImportOperation(IProject project, File sourceRPM, RPMProjectLayout rpmProjectLayout) {
        this.project = project;
        this.sourceRPM = sourceRPM;
        this.projectLayout = rpmProjectLayout;
    }

    /**
     * @param project The project to import to.
     * @param sourceRPM The remote SRPM file.
     * @param rpmProjectLayout The desired project layout of the project.
     */
    public SRPMImportOperation(IProject project, URL sourceRPM, RPMProjectLayout rpmProjectLayout) {
        this.remoteSRPM = sourceRPM;
        this.project = project;
        this.projectLayout = rpmProjectLayout;
    }


    /**
     * @see org.eclipse.jface.operation.IRunnableWithProgress#run(IProgressMonitor)
     *
     * Perform the import of  SRPM import. Call the build class incrementally
     */
    @Override
    public void run(IProgressMonitor progressMonitor) {
        // Total number of work steps needed
        int totalWork = 3;

        rpmErrorTable = new ArrayList<>();

        progressMonitor.beginTask(Messages.getString("SRPMImportOperation.Starting"), //$NON-NLS-1$
        totalWork);

        // Try to create an instance of the build class.
        try {
            RPMProject rpmProject = new RPMProject(project, projectLayout);
            progressMonitor.worked(1);
            progressMonitor.setTaskName(Messages.getString("SRPMImportOperation.Importing_SRPM")); //$NON-NLS-1$
            if (sourceRPM != null) {
                rpmProject.importSourceRPM(sourceRPM);
                progressMonitor.worked(2);
            } else if (remoteSRPM != null) {
                SubMonitor submonitor = SubMonitor.convert(progressMonitor, 1);
                rpmProject.importSourceRPM(remoteSRPM, submonitor);
                progressMonitor.worked(2);
            }
        } catch (CoreException e) {
            rpmErrorTable.add(e);
        }
        progressMonitor.worked(2);
    }


    /**
     * @return The result of the operation.
     */
    public MultiStatus getStatus() {
        IStatus[] errors = new IStatus[rpmErrorTable.size()];
        int iCount = 0;
        for (CoreException ex : rpmErrorTable) {
            errors[iCount] = ex.getStatus();
            iCount++;
        }

        return new MultiStatus(PlatformUI.PLUGIN_ID, IStatus.OK, errors, Messages.getString("SRPMImportOperation.3"), //$NON-NLS-1$
        null);
    }

}