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/**
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* Copyright (C) 2009 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.cdm.io.pesi.out.old;
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import java.net.URI;
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import java.sql.Connection;
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import java.sql.PreparedStatement;
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import java.sql.SQLException;
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import java.util.List;
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import java.util.Set;
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import org.apache.log4j.Logger;
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import org.springframework.stereotype.Component;
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import org.springframework.transaction.TransactionStatus;
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import eu.etaxonomy.cdm.io.common.Source;
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import eu.etaxonomy.cdm.io.pesi.out.PesiExportBase;
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import eu.etaxonomy.cdm.io.pesi.out.PesiExportConfigurator;
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import eu.etaxonomy.cdm.io.pesi.out.PesiExportState;
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import eu.etaxonomy.cdm.model.common.CdmBase;
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import eu.etaxonomy.cdm.model.description.DescriptionElementBase;
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import eu.etaxonomy.cdm.model.description.TaxonDescription;
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import eu.etaxonomy.cdm.model.description.TextData;
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import eu.etaxonomy.cdm.model.media.Media;
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import eu.etaxonomy.cdm.model.media.MediaRepresentation;
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import eu.etaxonomy.cdm.model.media.MediaRepresentationPart;
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import eu.etaxonomy.cdm.model.reference.Reference;
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import eu.etaxonomy.cdm.model.taxon.Taxon;
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import eu.etaxonomy.cdm.model.taxon.TaxonBase;
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/**
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* The export class for Images.
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* Inserts into DataWarehouse database table <code>Image</code>.
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* @author e.-m.lee
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* @since 18.08.2010
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*
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*/
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@Component
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public class PesiImageExport extends PesiExportBase {
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private static final Logger logger = Logger.getLogger(PesiImageExport.class);
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private static final Class<? extends CdmBase> standardMethodParameter = Reference.class;
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private static int modCount = 1000;
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private static final String dbTableName = "Image";
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private static final String pluralString = "DescriptionElements";
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private static final String parentPluralString = "Taxa";
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public PesiImageExport() {
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super();
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.cdm.io.common.DbExportBase#getStandardMethodParameter()
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*/
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@Override
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public Class<? extends CdmBase> getStandardMethodParameter() {
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return standardMethodParameter;
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.cdm.io.common.CdmIoBase#doCheck(eu.etaxonomy.cdm.io.common.IoStateBase)
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*/
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@Override
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protected boolean doCheck(PesiExportState state) {
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boolean result = true;
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return result;
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.cdm.io.common.CdmIoBase#doInvoke(eu.etaxonomy.cdm.io.common.IoStateBase)
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*/
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@Override
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protected void doInvoke(PesiExportState state) {
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logger.error("*** Started Making " + pluralString + " ...");
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// Get the limit for objects to save within a single transaction.
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// int limit = state.getConfig().getLimitSave();
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int limit = 1000;
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// PESI: Clear the database table Image.
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doDelete(state);
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// PESI: Create the Images
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int count = 0;
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int taxonCount = 0;
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int pastCount = 0;
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TransactionStatus txStatus = null;
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List<TaxonBase> list = null;
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Connection connection = state.getConfig().getDestination().getConnection();
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// Start transaction
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txStatus = startTransaction(true);
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logger.error("Started new transaction. Fetching some " + parentPluralString + " first (max: " + limit + ") ...");
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while ((list = getTaxonService().list(null, limit, taxonCount, null, null)).size() > 0) {
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taxonCount += list.size();
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logger.error("Fetched " + list.size() + " " + parentPluralString + ".");
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logger.error("Check for Images...");
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for (TaxonBase taxonBase : list) {
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if (taxonBase.isInstanceOf(Taxon.class)) {
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Taxon taxon = CdmBase.deproxy(taxonBase, Taxon.class);
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// Determine the TaxonDescriptions
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Set<TaxonDescription> taxonDescriptions = taxon.getDescriptions();
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// Determine the DescriptionElements (Citations) for the current Taxon
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for (TaxonDescription taxonDescription : taxonDescriptions) {
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// Check whether this TaxonDescription contains images
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if (taxonDescription.isImageGallery()) {
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Set<DescriptionElementBase> descriptionElements = taxonDescription.getElements();
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for (DescriptionElementBase descriptionElement : descriptionElements) {
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if (descriptionElement.isInstanceOf(TextData.class)) {
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List<Media> media = descriptionElement.getMedia();
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for (Media image : media) {
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Set<MediaRepresentation> representations = image.getRepresentations();
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for (MediaRepresentation representation : representations) {
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List<MediaRepresentationPart> representationParts = representation.getParts();
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for (MediaRepresentationPart representationPart : representationParts) {
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URI mediaUri = representationPart.getUri();
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// Add image data
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String thumb = null;
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Integer taxonFk = state.getDbId(taxonBase.getName());
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if (taxonFk != null && mediaUri != null) {
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doCount(count++, modCount, pluralString);
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invokeImages(thumb, mediaUri, taxonFk, connection);
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}
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}
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}
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}
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}
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}
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}
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}
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}
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}
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logger.error("Exported " + (count - pastCount) + " " + pluralString + ".");
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// Commit transaction
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commitTransaction(txStatus);
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logger.error("Committed transaction.");
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logger.error("Exported " + (count - pastCount) + " " + pluralString + ". Total: " + count);
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pastCount = count;
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// Start transaction
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txStatus = startTransaction(true);
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logger.error("Started new transaction. Fetching some " + parentPluralString + " first (max: " + limit + ") ...");
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}
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if (list.size() == 0) {
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logger.error("No " + pluralString + " left to fetch.");
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}
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// Commit transaction
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commitTransaction(txStatus);
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logger.error("Committed transaction.");
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logger.error("*** Finished Making " + pluralString + " ..." + getSuccessString(true));
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return;
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}
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/**
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* Inserts image data into the Image datawarehouse table.
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* @param thumb
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* @param url
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* @param taxonFk
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* @param connection
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*/
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private void invokeImages(String thumb, URI url, Integer taxonFk, Connection connection) {
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String imagesSql = "INSERT INTO Image (taxonFk, img_thumb, img_url) VALUES" +
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" (?, ?, ?)";
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try {
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PreparedStatement imagesStmt = connection.prepareStatement(imagesSql);
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if (taxonFk != null) {
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imagesStmt.setInt(1, taxonFk);
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} else {
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imagesStmt.setObject(1, null);
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}
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if (thumb != null) {
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imagesStmt.setString(2, thumb);
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} else {
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imagesStmt.setObject(2, null);
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}
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if (url != null) {
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imagesStmt.setString(3, url.toString());
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} else {
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imagesStmt.setObject(3, null);
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}
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imagesStmt.executeUpdate();
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} catch (SQLException e) {
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logger.error("Image could not be created. TaxonFk: " + taxonFk + ", Thumb: " + thumb + ", URL: " + url);
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e.printStackTrace();
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}
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}
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/**
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* Deletes all entries of database tables related to <code>AdditionalTaxonSource</code>.
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* @param state The {@link PesiExportState PesiExportState}.
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* @return Whether the delete operation was successful or not.
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*/
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protected boolean doDelete(PesiExportState state) {
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PesiExportConfigurator pesiConfig = (PesiExportConfigurator) state.getConfig();
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String sql;
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Source destination = pesiConfig.getDestination();
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// Clear AdditionalTaxonSource
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sql = "DELETE FROM " + dbTableName;
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destination.setQuery(sql);
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destination.update(sql);
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return true;
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.cdm.io.common.CdmIoBase#isIgnore(eu.etaxonomy.cdm.io.common.IoStateBase)
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*/
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@Override
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protected boolean isIgnore(PesiExportState state) {
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return ! ( state.getConfig().isDoImages());
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}
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}
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