PurgeDatastreamResponse.java

/**
 * Copyright (C) 2010 MediaShelf <http://www.yourmediashelf.com/>
 *
 * This file is part of fedora-client.
 *
 * fedora-client is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * fedora-client is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with fedora-client.  If not, see <http://www.gnu.org/licenses/>.
 */

package com.yourmediashelf.fedora.client.response;

import java.util.Collection;
import java.util.List;

import org.codehaus.jackson.map.ObjectMapper;
import org.codehaus.jackson.type.TypeReference;

import com.sun.jersey.api.client.ClientResponse;
import com.yourmediashelf.fedora.client.FedoraClientException;
import com.yourmediashelf.fedora.client.request.PurgeDatastream;

/**
 * A {@link FedoraResponse} for the {@link PurgeDatastream} request.
 *
 * @author Edwin Shin
 */
public class PurgeDatastreamResponse extends FedoraResponseImpl {

    private List<String> purgedDates;

    private final ObjectMapper mapper;

    public PurgeDatastreamResponse(ClientResponse cr)
            throws FedoraClientException {
        super(cr);
        mapper = new ObjectMapper();
    }

    /**
     *
     * @return the dates of the purged datastream versions
     * @throws FedoraClientException
     */
    public List<String> getPurgedDates() throws FedoraClientException {
        if (purgedDates == null) {
            try {
                purgedDates =
                        mapper.readValue(getEntity(String.class),
                                new TypeReference<Collection<String>>() {});
            } catch (Exception e) {
                throw new FedoraClientException(e.getMessage(), e);
            }
        }
        return purgedDates;
    }
}