org.opentestsystem.authoring.testauth.service.impl.ItemMetadataKeysServiceImpl.java Source code

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Here is the source code for org.opentestsystem.authoring.testauth.service.impl.ItemMetadataKeysServiceImpl.java

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/*******************************************************************************
 * Educational Online Test Delivery System
 * Copyright (c) 2013 American Institutes for Research
 * 
 * Distributed under the AIR Open Source License, Version 1.0
 * See accompanying file AIR-License-1_0.txt or at
 * http://www.smarterapp.org/documents/American_Institutes_for_Research_Open_Source_Software_License.pdf
 ******************************************************************************/
package org.opentestsystem.authoring.testauth.service.impl;

import java.util.List;
import java.util.Set;

import org.opentestsystem.authoring.testauth.domain.ItemMetadataKeys;
import org.opentestsystem.authoring.testauth.persistence.ItemMetadataKeysRepository;
import org.opentestsystem.authoring.testauth.service.ItemMetadataKeysService;
import org.opentestsystem.authoring.testitembank.client.TibItem;
import org.opentestsystem.shared.exception.LocalizedException;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.dao.DuplicateKeyException;
import org.springframework.stereotype.Service;

import com.google.common.base.Function;
import com.google.common.collect.Iterables;
import com.google.common.collect.Multimaps;
import com.google.common.collect.Sets;

@Service
public class ItemMetadataKeysServiceImpl extends AssessmentChildHelper implements ItemMetadataKeysService {

    private static final Function<TibItem, Set<String>> TIBITEM_METADATA_KEYS = new Function<TibItem, Set<String>>() {
        @Override
        public Set<String> apply(final TibItem input) {
            return input.getAllIncludedMetatdata().keySet();
        }
    };

    @Autowired
    private transient ItemMetadataKeysRepository itemMetadataKeysRepository;

    @Override
    public ItemMetadataKeys getItemMetadataKeysByAssessment(final String assessmentId) {
        return this.itemMetadataKeysRepository.findByAssessmentId(assessmentId);
    }

    @Override
    public void loadTibItemImportIntoItemMetadataKeys(final String assessmentId, final List<TibItem> tibItemList) {
        checkForLockedAssessment(assessmentId);
        final Set<String> metadataKeys = Sets
                .newHashSet(Iterables.concat(Multimaps.index(tibItemList, TIBITEM_METADATA_KEYS).asMap().keySet()));
        ItemMetadataKeys itemMetadataKeys = getItemMetadataKeysByAssessment(assessmentId);
        if (itemMetadataKeys == null) {
            itemMetadataKeys = new ItemMetadataKeys();
            itemMetadataKeys.setAssessmentId(assessmentId);
            itemMetadataKeys.setItemMetadataKeys(metadataKeys);
        } else {
            itemMetadataKeys.getItemMetadataKeys().addAll(metadataKeys);
        }
        try {
            this.itemMetadataKeysRepository.save(itemMetadataKeys);
        } catch (final DuplicateKeyException dke) {
            throw new LocalizedException("itemMetadataKeys.already.exists", new String[] {}, dke);
        }
    }

    @Override
    public void removeItemMetadataKeysByAssessment(final String assessmentId) {
        checkForLockedAssessment(assessmentId);
        final ItemMetadataKeys itemMetadataKeys = this.itemMetadataKeysRepository.findByAssessmentId(assessmentId);
        if (itemMetadataKeys != null) {
            this.itemMetadataKeysRepository.delete(itemMetadataKeys);
        }
    }
}