com.epam.ta.reportportal.triggers.DeleteItemsListener.java Source code

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Here is the source code for com.epam.ta.reportportal.triggers.DeleteItemsListener.java

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/*
 * Copyright 2016 EPAM Systems
 *
 *
 * This file is part of EPAM Report Portal.
 * https://github.com/reportportal/commons-dao
 *
 * Report Portal 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.
 *
 * Report Portal 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 Report Portal.  If not, see <http://www.gnu.org/licenses/>.
 */
package com.epam.ta.reportportal.triggers;

import static java.util.Collections.singletonList;
import static java.util.stream.Collectors.toList;
import static java.util.stream.StreamSupport.stream;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.convert.QueryMapper;
import org.springframework.data.mongodb.core.mapping.MongoMappingContext;
import org.springframework.data.mongodb.core.mapping.event.AbstractMongoEventListener;
import org.springframework.data.mongodb.core.mapping.event.BeforeDeleteEvent;
import org.springframework.stereotype.Service;

import com.epam.ta.reportportal.database.dao.LogRepository;
import com.epam.ta.reportportal.database.entity.item.TestItem;
import com.mongodb.BasicDBObject;
import com.mongodb.DBObject;

/**
 * @author Dzmitry Kavalets
 */
@Service
public class DeleteItemsListener extends AbstractMongoEventListener<TestItem> {

    private MongoTemplate mongoTemplate;
    private LogRepository logRepository;
    private QueryMapper queryMapper;
    private MongoMappingContext mappingContext;

    @Autowired
    public DeleteItemsListener(MongoTemplate mongoTemplate, LogRepository logRepository,
            MongoMappingContext mappingContext) {
        this.mongoTemplate = mongoTemplate;
        this.logRepository = logRepository;
        this.queryMapper = new QueryMapper(mongoTemplate.getConverter());
        this.mappingContext = mappingContext;
    }

    @Override
    public void onBeforeDelete(BeforeDeleteEvent<TestItem> event) {
        DBObject dbqo = queryMapper.getMappedObject(event.getDBObject(),
                mappingContext.getPersistentEntity(TestItem.class));
        for (DBObject dbObject : mongoTemplate.getCollection(event.getCollectionName()).find(dbqo)) {
            final String id = dbObject.get("_id").toString();
            final BasicDBObject itemDescendantsQuery = new BasicDBObject("path",
                    new BasicDBObject("$in", singletonList(id)));
            final List<String> itemIds = stream(
                    mongoTemplate.getCollection(event.getCollectionName()).find(itemDescendantsQuery).spliterator(),
                    false).map(it -> it.get("_id").toString()).collect(toList());
            mongoTemplate.getCollection(event.getCollectionName()).remove(itemDescendantsQuery);
            itemIds.add(id);
            logRepository.deleteByItemRef(itemIds);
        }
    }
}