EDIT

/**

 * Copyright (C) 2007 EDIT

 * European Distributed Institute of Taxonomy

 * http://www.e-taxonomy.eu

 *

 * The contents of this file are subject to the Mozilla Public License Version 1.1

 * See LICENSE.TXT at the top of this package for the full license terms.

 */

package eu.etaxonomy.taxeditor.io;

import java.io.File;

import java.io.InputStream;

import java.nio.file.Files;

import java.nio.file.Path;

import java.nio.file.Paths;

import java.util.List;

import java.util.UUID;

import org.apache.commons.io.IOUtils;

import org.apache.commons.lang.StringUtils;

import org.eclipse.core.runtime.Assert;

import org.eclipse.core.runtime.IProgressMonitor;

import org.eclipse.core.runtime.IStatus;

import org.eclipse.core.runtime.Status;

import org.eclipse.core.runtime.jobs.Job;

import org.eclipse.swt.widgets.Display;

import org.eclipse.ui.PlatformUI;

import eu.etaxonomy.cdm.api.application.CdmApplicationState;

import eu.etaxonomy.cdm.api.application.ICdmRepository;

import eu.etaxonomy.cdm.common.monitor.IRemotingProgressMonitor;

import eu.etaxonomy.cdm.io.common.CacheUpdaterConfigurator;

import eu.etaxonomy.cdm.io.common.CdmDefaultImport;

import eu.etaxonomy.cdm.io.common.IImportConfigurator;

import eu.etaxonomy.cdm.io.common.IImportConfigurator.SOURCE_TYPE;

import eu.etaxonomy.cdm.io.common.ImportConfiguratorBase;

import eu.etaxonomy.cdm.io.common.ImportResult;

import eu.etaxonomy.cdm.io.common.SortIndexUpdaterConfigurator;

import eu.etaxonomy.cdm.io.distribution.excelupdate.ExcelDistributionUpdateConfigurator;

import eu.etaxonomy.cdm.io.dwca.in.DwcaImportConfigurator;

import eu.etaxonomy.cdm.io.excel.taxa.NormalExplicitImportConfigurator;

import eu.etaxonomy.cdm.io.jaxb.JaxbImportConfigurator;

import eu.etaxonomy.cdm.io.reference.endnote.in.EndnoteImportConfigurator;

import eu.etaxonomy.cdm.io.sdd.in.SDDImportConfigurator;

import eu.etaxonomy.cdm.io.service.IIOService;

import eu.etaxonomy.cdm.io.specimen.abcd206.in.Abcd206ImportConfigurator;

import eu.etaxonomy.cdm.io.specimen.excel.in.SpecimenCdmExcelImportConfigurator;

import eu.etaxonomy.cdm.io.specimen.gbif.in.GbifImportConfigurator;

import eu.etaxonomy.cdm.io.specimen.gbif.in.GbifImportState;

import eu.etaxonomy.cdm.io.tcsxml.in.TcsXmlImportConfigurator;

import eu.etaxonomy.taxeditor.model.AbstractUtility;

import eu.etaxonomy.taxeditor.model.CdmProgressMonitorAdapter;

import eu.etaxonomy.taxeditor.model.MessagingUtils;

import eu.etaxonomy.taxeditor.operation.IPostMoniteredOperationEnabled;

import eu.etaxonomy.taxeditor.store.CdmStore;

import eu.etaxonomy.taxeditor.store.internal.TaxeditorStorePlugin;

import eu.etaxonomy.taxeditor.ui.dialog.ReportTextDialog;

/**

 * <p>

 * ImportHandler class.

 * </p>

 *

 * @author n.hoffmann

 * @created Sep 11, 2009

 * @version 1.0

 */

public class ImportManager extends AbstractIOManager<IImportConfigurator> implements IPostMoniteredOperationEnabled {

	/**

	 * @param applicationConfiguration

	 */

	private ImportManager(ICdmRepository applicationConfiguration) {

		super(applicationConfiguration);

	}

	/**

	 * <p>

	 * NewInstance

	 * </p>

	 *

	 * @param applicationConfiguration

	 *            a

	 *            {@link eu.etaxonomy.cdm.api.application.CdmApplicationController}

	 *            object.

	 * @return a {@link eu.etaxonomy.taxeditor.io.ImportManager} object.

	 */

	public static ImportManager NewInstance(

			ICdmRepository applicationConfiguration) {

		return new ImportManager(applicationConfiguration);

	}

	/**

	 * Use when importing data into the current application context

	 *

	 * @param configurator

	 *            a {@link eu.etaxonomy.cdm.io.common.IImportConfigurator}

	 *            object.

	 * @return a {@link org.eclipse.core.runtime.jobs.Job} object.

	 */

	@Override

	protected Job createIOJob(final IImportConfigurator configurator) {

		Assert.isNotNull(configurator, "Configuration may not be null");

		final Display display = Display.getDefault();

		Job job = new Job("Import: " + configurator.getClass().getSimpleName()) {

			@Override

			protected IStatus run(IProgressMonitor monitor) {

				monitor.beginTask("Importing data", 100);

				configurator.setProgressMonitor(CdmProgressMonitorAdapter

						.CreateSubMonitor(monitor, 70));

				monitor.worked(5);

				CdmDefaultImport<IImportConfigurator> importer = new CdmDefaultImport<IImportConfigurator>();

				importer.setCdmAppController(applicationConfiguration);

				monitor.worked(5);

				ImportResult importResult = null;

				try {

					importResult = importer.invoke(configurator);

					monitor.worked(80);

				} catch (RuntimeException e) {

					MessagingUtils.messageDialog(

							"Error importing data",

							this,

							"An error occured while"

									+ "importing from source '"

									+ configurator.getSourceNameString()

									+ "'.\n"

									+ "Please check error log for details.", e);

				}

				monitor.worked(5);

				monitor.done();

				final StringBuilder reportText = new StringBuilder();

				if(importResult!=null){

				    List<byte[]> reports = importResult.getReports();

				    for (byte[] bs : reports) {

                        reportText.append(new String(bs));

                    }

				}

				display.asyncExec(new Runnable() {

					@Override

					public void run() {

                        // display reports with possibility to save

                        ReportTextDialog dialog = new ReportTextDialog(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell());

                        dialog.setTitle(configurator.getClass().getSimpleName()+" Report");

                        dialog.setReportText(reportText.toString());

                        dialog.open();

						CdmStore.getContextManager().notifyContextRefresh();

					}

				});

				return Status.OK_STATUS;

			}

		};

		return job;

	}

	public Job createIOServiceJob(IImportConfigurator configurator, InputStream is, SOURCE_TYPE type) {

	    try {

	        return createIOServiceJob(configurator, IOUtils.toByteArray(is), type);

	    } catch (Exception e) {

	        MessagingUtils.errorDialog("Error importing input stream",

	                this,

	                e.getMessage(),

	                TaxeditorStorePlugin.PLUGIN_ID,

	                e,

	                true);

	    }

	    return null;

	}

	public Job createIOServiceJob(IImportConfigurator configurator, File importFile, SOURCE_TYPE type) {

	    Path path = Paths.get(importFile.toURI());

	    try {

	        return createIOServiceJob(configurator, Files.readAllBytes(path), type);

	    } catch (Exception e) {

	        MessagingUtils.errorDialog("Error importing file",

	                this,

	                e.getMessage(),

	                TaxeditorStorePlugin.PLUGIN_ID,

	                e,

	                true);

	    }

	    return null;

	}

    public Job createIOServiceJob(final IImportConfigurator configurator, final byte[] data, final SOURCE_TYPE type) {

        Assert.isNotNull(configurator, "Configuration may not be null");

        final Display display = Display.getDefault();

        Job job = new Job("Import: " + configurator.getClass().getSimpleName()) {

            @Override

            protected IStatus run(IProgressMonitor monitor) {

                monitor.beginTask("Importing data", IProgressMonitor.UNKNOWN);

                IIOService ioService = CdmApplicationState.getIOService();

                ImportResult result = ioService.importData(configurator, data, type);

                monitor.done();

                display.asyncExec(new Runnable() {

                    @Override

                    public void run() {

                        CdmStore.getContextManager().notifyContextRefresh();

                    }

                });

                showResult(configurator.getClass().getSimpleName(), display, result);

                return Status.OK_STATUS;

            }

        };

        return job;

    }

    public void runMoniteredOperation(IImportConfigurator configurator, InputStream is, SOURCE_TYPE type) {

        try {

            runMoniteredOperation(configurator, IOUtils.toByteArray(is), type);

        } catch (Exception e) {

            MessagingUtils.errorDialog("Error importing input stream",

                    this,

                    e.getMessage(),

                    TaxeditorStorePlugin.PLUGIN_ID,

                    e,

                    true);

        }

    }

    public void runMoniteredOperation(IImportConfigurator configurator, SOURCE_TYPE type) {

        byte[] data = new byte[1];

        try {

            runMoniteredOperation(configurator, data, type);

        } catch (Exception e) {

            MessagingUtils.errorDialog("Error importing input stream",

                    this,

                    e.getMessage(),

                    TaxeditorStorePlugin.PLUGIN_ID,

                    e,

                    true);

        }

    }

    public void runMoniteredOperation(IImportConfigurator configurator, File importFile, SOURCE_TYPE type) {

        Path path = Paths.get(importFile.toURI());

        try {

            runMoniteredOperation(configurator, Files.readAllBytes(path), type);

        } catch (Exception e) {

            MessagingUtils.errorDialog("Error importing input stream",

                    this,

                    e.getMessage(),

                    TaxeditorStorePlugin.PLUGIN_ID,

                    e,

                    true);

        }

    }

    public void runMoniteredOperation(final IImportConfigurator configurator, final byte[] data, final SOURCE_TYPE type) {

        IIOService ioService = CdmApplicationState.getIOService();

        final UUID uuid = ioService.monitImportData(configurator, data, type);

        Display.getDefault().asyncExec(new Runnable() {

            @Override

            public void run() {

                AbstractUtility.executeMoniteredOperation("Import: " + configurator.getClass().getSimpleName(),

                        uuid,

                        1000,

                        false,

                        ImportManager.this,

                        null);

            }

        });

    }

	private IImportConfigurator getConfigurator(TYPE type) {

		Assert.isNotNull(type, "Type should not be null");

		switch (type) {

		case Jaxb:

			return JaxbImportConfigurator.NewInstance(null, null);

		case Tcs:

			return TcsXmlImportConfigurator.NewInstance(null, null);

		case Endnote:

			return EndnoteImportConfigurator.NewInstance(null, null);

		case Excel_Taxa:

			return NormalExplicitImportConfigurator.NewInstance(null, null,

					null, null);

		case Abcd:

			return Abcd206ImportConfigurator.NewInstance(null, null);

		case Sdd:

			return SDDImportConfigurator.NewInstance(null, null);

		case SpecimenCdmExcel:

			return SpecimenCdmExcelImportConfigurator.NewInstance(null, null);

		case SpecimenSearch:

		    return Abcd206ImportConfigurator.NewInstance(null, null);

		case Gbif:

		    return DwcaImportConfigurator.NewInstance(null, null);

		case Excel_Distribution:

            return ExcelDistributionUpdateConfigurator.NewInstance(null, null, null);

		default:

			MessagingUtils.notImplementedMessage(this);

			throw new IllegalArgumentException("Import not supported yet");

		}

	}

	/**

	 * <p>

	 * JaxbConfigurator

	 * </p>

	 *

	 * @return a {@link eu.etaxonomy.cdm.io.jaxb.JaxbImportConfigurator} object.

	 */

	public final JaxbImportConfigurator JaxbConfigurator() {

		return (JaxbImportConfigurator) getConfigurator(TYPE.Jaxb);

	}

	/**

	 * <p>

	 * TcsConfigurator

	 * </p>

	 *

	 * @return a {@link eu.etaxonomy.cdm.io.tcsxml.in.TcsXmlImportConfigurator}

	 *         object.

	 */

	public final TcsXmlImportConfigurator TcsConfigurator() {

		return (TcsXmlImportConfigurator) getConfigurator(TYPE.Tcs);

	}

	/**

	 * <p>

	 * EndnoteConfigurator

	 * </p>

	 *

	 * @return a

	 *         {@link eu.etaxonomy.cdm.io.reference.endnote.in.EndnoteImportConfigurator}

	 *         object.

	 */

	public final EndnoteImportConfigurator EndnoteConfigurator() {

		return (EndnoteImportConfigurator) getConfigurator(TYPE.Endnote);

	}

	/**

	 * <p>

	 * NormalExplicitConfigurator

	 * </p>

	 *

	 * @return a

	 *         {@link eu.etaxonomy.cdm.io.excel.taxa.NormalExplicitImportConfigurator}

	 *         object.

	 */

	public final NormalExplicitImportConfigurator NormalExplicitConfigurator() {

		return (NormalExplicitImportConfigurator) getConfigurator(TYPE.Excel_Taxa);

	}

	/**

	 * <p>

	 * SddConfigurator

	 * </p>

	 *

	 * @return a {@link eu.etaxonomy.cdm.io.sdd.in.SDDImportConfigurator}

	 *         object.

	 */

	public final SDDImportConfigurator SddConfigurator() {

		return (SDDImportConfigurator) getConfigurator(TYPE.Sdd);

	}

	/**

	 * <p>

	 * AbcdConfigurator

	 * </p>

	 *

	 * @return a

	 *         {@link eu.etaxonomy.cdm.io.specimen.abcd206.in.Abcd206ImportConfigurator}

	 *         object.

	 */

	public final Abcd206ImportConfigurator AbcdConfigurator() {

		return (Abcd206ImportConfigurator) getConfigurator(TYPE.Abcd);

	}

	public SpecimenCdmExcelImportConfigurator SpecimenCdmExcelImportConfigurator() {

		return (SpecimenCdmExcelImportConfigurator) getConfigurator(TYPE.SpecimenCdmExcel);

	}

	public DwcaImportConfigurator DwcaImportConfigurator() {

		return (DwcaImportConfigurator) getConfigurator(TYPE.Gbif);

	}

    /**

     * {@inheritDoc}

     */

    @Override

    public void postOperation(IRemotingProgressMonitor monitor) {

        Display.getDefault().asyncExec(new Runnable() {

            @Override

            public void run() {

                CdmStore.getContextManager().notifyContextRefresh();

            }

        });

    }

	public Job createIOServiceJob(final GbifImportConfigurator<GbifImportState, InputStream> configurator) {

		 Assert.isNotNull(configurator, "Configuration may not be null");

	        final Display display = Display.getDefault();

	        Job job = new Job("Import: " + " Dwca") {

	            @Override

	            protected IStatus run(IProgressMonitor monitor) {

	                monitor.beginTask("Importing data", IProgressMonitor.UNKNOWN);

	                IIOService ioService = CdmApplicationState.getIOService();

	                ImportResult result = ioService.importDataFromStream(configurator);

	                monitor.done();

//	                display.asyncExec(new Runnable() {

//

//	                    @Override

//	                    public void run() {

//	                        CdmStore.getContextManager().notifyContextRefresh();

//	                    }

//	                });

	                showResult("Gbif Import", display, result);

	                return Status.OK_STATUS;

	            }

	        };

	        return job;

	}

	public Job createIOServiceJob(final Abcd206ImportConfigurator configurator) {

		 Assert.isNotNull(configurator, "Configuration may not be null");

	        final Display display = Display.getDefault();

	        Job job = new Job("Import: " + " Dwca") {

	            @Override

	            protected IStatus run(IProgressMonitor monitor) {

	                monitor.beginTask("Importing data", IProgressMonitor.UNKNOWN);

	                IIOService ioService = CdmApplicationState.getIOService();

	                ImportResult result = ioService.importDataFromStream(configurator);

	                monitor.done();

	                display.asyncExec(new Runnable() {

	                    @Override

	                    public void run() {

	                        CdmStore.getContextManager().notifyContextRefresh();

	                    }

	                });

	                showResult("Abcd Import", display, result);

	                return Status.OK_STATUS;

	            }

	        };

	        return job;

	}

	public Job createIOServiceJob(

			final List<Abcd206ImportConfigurator> abcdConfigurators) {

		 Assert.isNotNull(abcdConfigurators, "Configuration may not be null");

	        final Display display = Display.getDefault();

	        Job job = new Job("Import: " + " Abcd") {

	            @Override

	            protected IStatus run(IProgressMonitor monitor) {

	                monitor.beginTask("Importing data", IProgressMonitor.UNKNOWN);

	                IIOService ioService = CdmApplicationState.getIOService();

	                ImportResult result = ioService.importDataFromStream(abcdConfigurators);

	                monitor.done();

	                display.asyncExec(new Runnable() {

	                    @Override

	                    public void run() {

	                        CdmStore.getContextManager().notifyContextRefresh();

	                    }

	                });

	                showResult("Abcd Import", display, result);

	                return Status.OK_STATUS;

	            }

	        };

	        return job;

	}

    public Job createIOServiceJob(final ImportConfiguratorBase configurator) {

        Assert.isNotNull(configurator, "Configuration may not be null");

        final Display display = Display.getDefault();

        Job job = new Job("Update: " + configurator.getClass().getSimpleName()) {

            @Override

            protected IStatus run(IProgressMonitor monitor) {

                monitor.beginTask("Updating data", IProgressMonitor.UNKNOWN);

                IIOService ioService = CdmApplicationState.getIOService();

                ImportResult importResult = null;

                if (configurator instanceof SortIndexUpdaterConfigurator){

                    SortIndexUpdaterConfigurator config = (SortIndexUpdaterConfigurator)configurator;

                    importResult =ioService.updateSortIndex(config);

                } else if (configurator instanceof CacheUpdaterConfigurator){

                    CacheUpdaterConfigurator config = (CacheUpdaterConfigurator) configurator;

                    importResult = ioService.updateCaches(config);

                } else if (configurator instanceof ExcelDistributionUpdateConfigurator){

                    ExcelDistributionUpdateConfigurator config = (ExcelDistributionUpdateConfigurator) configurator;

                    importResult =ioService.updateDistributionData(config);

                }

                monitor.done();

//                display.asyncExec(new Runnable() {

//

//                    @Override

//                    public void run() {

//                        CdmStore.getContextManager().notifyContextRefresh();

//                    }

//                });

                showResult(configurator.getClass().getSimpleName(), display, importResult);

                return Status.OK_STATUS;

            }

        };

        return job;

    }

    /**

     * @return

     */

    public ExcelDistributionUpdateConfigurator ExcelDistributionUpdateConfigurator() {

        return (ExcelDistributionUpdateConfigurator) getConfigurator(TYPE.Excel_Distribution);

    }

    /**

     * @param configurator

     * @param display

     * @param importResult

     */

    private void showResult(String importName, final Display display,

            ImportResult importResult) {

        StringBuffer reportTextTemp = importResult.createReport();

        final StringBuffer reportText;

        if (StringUtils.isBlank(reportTextTemp.toString())){

            reportTextTemp.append("No update result available");

            //TODO: this is a workaround because the abcd import writes the report in the report part...

            if (!importResult.getReports().isEmpty() && importResult.getReports().get(0) != null){

                reportTextTemp = new StringBuffer();

                if(importResult!=null){

                    List<byte[]> reports = importResult.getReports();

                    for (byte[] bs : reports) {

                        if (bs != null){ reportTextTemp.append(new String(bs));}

                    }

                }

            }

        }

        reportText = reportTextTemp;

        display.asyncExec(new Runnable() {

            @Override

            public void run() {

                // display reports with possibility to save

                ReportTextDialog dialog = new ReportTextDialog(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell());

                dialog.setTitle(importName+" Report");

                dialog.setReportText(reportText.toString());

                dialog.open();

                CdmStore.getContextManager().notifyContextRefresh();

            }

        });

    }

}