Java tutorial
/******************************************************************************* * Copyright (c) 2004-2009 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.lang.reflect.InvocationTargetException; import java.util.ArrayList; import java.util.Iterator; import java.util.List; import org.eclipse.core.resources.IProject; import org.eclipse.core.runtime.IProgressMonitor; import org.eclipse.core.runtime.IStatus; import org.eclipse.core.runtime.MultiStatus; import org.eclipse.core.runtime.Status; import org.eclipse.jface.operation.IRunnableWithProgress; 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 RPMProjectLayout projectLayout; // Progressmonitor private IProgressMonitor monitor; private List<Exception> rpm_errorTable; /** * 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; } /** * @see org.eclipse.jface.operation.IRunnableWithProgress#run(IProgressMonitor) * * Perform the import of SRPM import. Call the build class incrementally */ public void run(IProgressMonitor progressMonitor) throws InvocationTargetException { // Total number of work steps needed int totalWork = 2; monitor = progressMonitor; rpm_errorTable = new ArrayList<Exception>(); monitor.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); monitor.worked(1); monitor.setTaskName(Messages.getString("SRPMImportOperation.Importing_SRPM")); //$NON-NLS-1$ rpmProject.importSourceRPM(sourceRPM); } catch (Exception e) { e.printStackTrace(); rpm_errorTable.add(e); return; } monitor.worked(1); } /** * @return The result of the operation. */ public MultiStatus getStatus() { IStatus[] errors = new IStatus[rpm_errorTable.size()]; Iterator<Exception> count = rpm_errorTable.iterator(); int iCount = 0; String error_message = Messages.getString("SRPMImportOperation.0"); //$NON-NLS-1$ while (count.hasNext()) { Object anonErrorObject = count.next(); if (anonErrorObject instanceof Throwable) { Throwable errorObject = (Throwable) anonErrorObject; error_message = errorObject.getMessage(); if (error_message == null) error_message = Messages.getString("SRPMImportOperation.1"); //$NON-NLS-1$ } else if (anonErrorObject instanceof Status) { Status errorObject = (Status) anonErrorObject; error_message = errorObject.getMessage(); if (error_message == null) error_message = Messages.getString("SRPMImportOperation.2"); //$NON-NLS-1$ } IStatus error = new Status(IStatus.ERROR, "RPM Plugin", IStatus.OK, //$NON-NLS-1$ error_message, null); errors[iCount] = error; iCount++; } return new MultiStatus(PlatformUI.PLUGIN_ID, IStatus.OK, errors, Messages.getString("SRPMImportOperation.3"), //$NON-NLS-1$ null); } }