view gwt-client/src/main/java/org/dive4elements/river/client/server/LoadArtifactServiceImpl.java @ 5948:d7b9b3e3c61a

Make instantiation of saml.User easier. Most of the parameters of the constructor can be taken from the Assertion object, so there's no reason to pass them separately. Also, trying to check the validity dates isn't useful for the single sign on case. See comments in the hasExpired method.
author Bernhard Herzog <bh@intevation.de>
date Wed, 08 May 2013 17:56:14 +0200
parents 172338b1407f
children ea9eef426962
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/* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
 * Software engineering by Intevation GmbH
 *
 * This file is Free Software under the GNU AGPL (>=v3) 
 * and comes with ABSOLUTELY NO WARRANTY! Check out the
 * documentation coming with Dive4Elements River for details. 
 */

package org.dive4elements.river.client.server;

import java.util.ArrayList;
import java.util.HashMap;

import org.apache.log4j.Logger;

import org.dive4elements.river.client.shared.exceptions.ServerException;
import org.dive4elements.river.client.shared.model.Artifact;
import org.dive4elements.river.client.shared.model.Collection;
import org.dive4elements.river.client.shared.model.Recommendation;

import org.dive4elements.river.client.client.services.LoadArtifactService;

/**
 * This service creates a new Artifact based on a given Recommendation and puts
 * this new artifact into a specified Collection.
 *
 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
 */
public class LoadArtifactServiceImpl
extends      ArtifactServiceImpl
implements   LoadArtifactService
{
    private static final Logger logger =
        Logger.getLogger(LoadArtifactServiceImpl.class);

    /** Error. */
    public static final String ERROR_LOAD_ARTIFACT = "error_load_artifact";


    /**
     * Clones or creates a single artifact and adds it to a collection.
     *
     * Note that in contrast to loadMany, always the given factory is used
     * to clone the artifact.
     *
     * @param parent  collection to add recommendation to.
     * @param recom   recommendation to create clone for.
     * @param factory factory to use.
     * @param locale  the locale to translate messages.
     */
    public Artifact load(
        Collection     parent,
        Recommendation recom,
        String         factory,
        String         locale
    )
    throws ServerException {
        logger.info(
            "LoadArtifactServiceImpl.load: " + recom.getMasterArtifact());

        String url  = getServletContext().getInitParameter("server-url");

        // 1) Clone the Artifact specified in >>recom<<
        Artifact clone = ArtifactHelper.createArtifact(
            url, locale, factory, recom);

        if (clone != null) {
            logger.debug("Successfully create Artifact Clone. Add now!");
            Collection c = CollectionHelper.addArtifact(
                parent, clone, url, locale);

            if (c != null) {
                logger.debug("Successfully added Clone to Collection.");

                return clone;
            }
        }

        throw new ServerException(ERROR_LOAD_ARTIFACT);
    }


    /**
     * Clone/create one or more artifacts and add it to a collection, avoiding
     * duplicates.
     *
     * @param parent  Collection where clones will be added to.
     * @param recoms  definitions of source of clone.
     * @param factory name of factory to use when cloning artifacts (can be
     *                null in which case the recommendations getFactory() will
     *                be used.
     * @param locale  the locale to translate messages.
     *
     * @return cloned artifacts (same artifact might be contained multiple
     *         times).
     */
    public Artifact[] loadMany(
        Collection       parent,
        Recommendation[] recoms,
        String           factory,
        String           locale
    )
    throws ServerException {
        logger.debug("LoadArtifactServiceImpl.loadMany");

        String url = getServletContext().getInitParameter("server-url");

        ArrayList<Artifact> artifacts = new ArrayList<Artifact>();
        HashMap<Recommendation, Artifact> cloneMap =
            new HashMap<Recommendation, Artifact>();

        // TODO Respect the index of what to clone.

        // 1) Clone the Artifacts specified in >>recoms<<
        for (Recommendation recom : recoms) {
            // Do not do two clones of two identical recommendations.
            Artifact prevClone = cloneMap.get(recom);
            if (prevClone != null) {
                // Already cloned a recommendation like this.
                logger.debug("LoadArtifactServiceImpl: Avoid reclones, "
                    + "clone already exists.");
                artifacts.add(prevClone);
            }
            else {
                // Not already cloned.
                String realFactory = factory != null
                    ? factory
                    : recom.getFactory();

                logger.debug("One will be cloned with : " + realFactory);

                Artifact clone = ArtifactHelper.createArtifact(
                    url, locale, realFactory, recom);

                if (clone != null) {
                    logger.debug("LoadArtifactServiceImple: Successfully "
                        + "loaded Artifact Clone.");
                    Collection c = CollectionHelper.addArtifact(
                        parent, clone, url, locale);

                    if (c != null) {
                        artifacts.add(clone);
                        // Remember we cloned a recommendation like this.
                        cloneMap.put(recom, clone);
                    }
                    else {
                        throw new ServerException(ERROR_LOAD_ARTIFACT);
                    }
                }
            }
        }
        return artifacts.toArray(new Artifact[artifacts.size()]);
    }
}
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