ru.org.linux.section.SectionService.java Source code

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/*
 * Copyright 1998-2012 Linux.org.ru
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *        http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */

package ru.org.linux.section;

import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableList.Builder;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import javax.annotation.PostConstruct;
import java.util.List;

@Service
public class SectionService {
    private ImmutableList<Section> sectionList;

    @Autowired
    SectionDao sectionDao;

    /**
     * ? ?? ?  .
     *  ?? ? ? ? ?? .
     */
    @PostConstruct
    private void initializeSectionList() {
        Builder<Section> sectionListBuilder = ImmutableList.builder();
        List<Section> sections = sectionDao.getAllSections();
        sectionListBuilder.addAll(sections);
        sectionList = sectionListBuilder.build();
    }

    /**
     *   ?  .
     *
     * @param SectionName  ?
     * @return  ?
     * @throws SectionNotFoundException ? ??  
     */
    public int getSectionIdByName(String SectionName) throws SectionNotFoundException {
        if (sectionList == null) {
            initializeSectionList();
        }
        for (Section section : sectionList) {
            if (section.getName().equals(SectionName)) {
                return section.getId();
            }
        }
        throw new SectionNotFoundException();
    }

    /**
     *   ?   ?.
     *
     * @param sectionId  ?
     * @return  ?
     * @throws SectionNotFoundException ? ??  
     */
    public Section getSection(int sectionId) throws SectionNotFoundException {
        for (Section section : sectionList) {
            if (section.getId() == sectionId) {
                return section;
            }
        }
        throw new SectionNotFoundException(sectionId);
    }

    /**
     *  ?? ?.
     *
     * @return ?? ?
     */
    public ImmutableList<Section> getSectionList() {
        return sectionList;
    }

    /**
     *  ?   ?   ?.
     *
     * @param id  ?
     * @return ?? ?  ?
     */
    public String getAddInfo(int id) {
        return sectionDao.getAddInfo(id);
    }

    /**
     *   "??"  ?.
     *
     * @param sectionId   ?
     * @return  "??"  ?
     * @throws SectionNotFoundException
     */
    public SectionScrollModeEnum getScrollMode(int sectionId) throws SectionNotFoundException {
        Section section = getSection(sectionId);
        return section.getScrollMode();
    }
}