edu.sabanciuniv.sentilab.sare.controllers.entitymanagers.PersistentDocumentController.java Source code

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Here is the source code for edu.sabanciuniv.sentilab.sare.controllers.entitymanagers.PersistentDocumentController.java

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/*
 * Sentilab SARE: a Sentiment Analysis Research Environment
 * Copyright (C) 2013 Sabanci University Sentilab
 * http://sentilab.sabanciuniv.edu
 * 
 * This file is part of SARE.
 * 
 * SARE is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *  
 * SARE 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 General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with SARE. If not, see <http://www.gnu.org/licenses/>.
 */

package edu.sabanciuniv.sentilab.sare.controllers.entitymanagers;

import java.util.*;

import javax.persistence.*;

import org.apache.commons.lang3.Validate;

import com.google.common.collect.*;

import edu.sabanciuniv.sentilab.sare.models.base.document.PersistentDocument;
import edu.sabanciuniv.sentilab.sare.models.base.documentStore.PersistentDocumentStore;
import edu.sabanciuniv.sentilab.utils.*;

/**
 * An entity controlle for {@link PersistentDocument} entities.
 * @author Mus'ab Husaini
 */
public class PersistentDocumentController extends PersistentObjectController {

    /**
     * Gets all UUIDs for {@link PersistentDocument} objects that are associated with a particular {@link PersistentDocumentStore}.
     * @param em the {@link EntityManager} to use.
     * @param storeId the ID of the store to look for.
     * @return a {@link List} containing {@link String} representations of the UUIDs.
     */
    public List<String> getAllUuids(EntityManager em, String storeId) {
        Validate.notNull(em, CannedMessages.NULL_ARGUMENT, "em");
        Validate.notNull(storeId, CannedMessages.NULL_ARGUMENT, "storeId");

        PersistentDocumentStore store = em.find(PersistentDocumentStore.class, UuidUtils.toBytes(storeId));
        return Lists
                .newArrayList(Iterables.transform(store.getDocumentIds(em), UuidUtils.uuidBytesToStringFunction()));
    }
}