com.avanza.ymer.MongoDocumentCollection.java Source code

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Here is the source code for com.avanza.ymer.MongoDocumentCollection.java

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/*
 * Copyright 2015 Avanza Bank AB
 *
 * 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 com.avanza.ymer;

import java.util.Objects;
import java.util.stream.Stream;
import java.util.stream.StreamSupport;

import org.springframework.data.mongodb.core.query.Query;

import com.mongodb.BasicDBObject;
import com.mongodb.DBCollection;
import com.mongodb.DBObject;
import com.mongodb.DuplicateKeyException;

/**
 *
 * @author Elias Lindholm (elilin)
 *
 */
final class MongoDocumentCollection implements DocumentCollection {

    private final DBCollection dbCollection;

    public MongoDocumentCollection(DBCollection dbCollection) {
        this.dbCollection = Objects.requireNonNull(dbCollection);
    }

    @Override
    public Stream<DBObject> findAll(SpaceObjectFilter<?> objectFilter) {
        if (MongoPartitionFilter.canCreateFrom(objectFilter)) {
            MongoPartitionFilter mongoPartitionFilter = MongoPartitionFilter.create(objectFilter);
            return StreamSupport.stream(dbCollection.find(mongoPartitionFilter.toDBObject()).spliterator(), false);
        }
        return findAll();
    }

    @Override
    public Stream<DBObject> findAll() {
        return StreamSupport.stream(dbCollection.find().spliterator(), false);
    }

    @Override
    public DBObject findById(Object id) {
        return dbCollection.findOne(id);
    }

    @Override
    public Stream<DBObject> findByQuery(Query query) {
        return StreamSupport.stream(dbCollection.find(query.getQueryObject()).spliterator(), false);
    }

    @Override
    public Stream<DBObject> findByTemplate(BasicDBObject query) {
        return StreamSupport.stream(dbCollection.find(query).spliterator(), false);
    }

    @Override
    public void replace(DBObject oldVersion, DBObject newVersion) {
        if (!oldVersion.get("_id").equals(newVersion.get("_id"))) {
            dbCollection.insert(newVersion);
            dbCollection.remove(new BasicDBObject("_id", oldVersion.get("_id")));
        } else {
            dbCollection.update(new BasicDBObject("_id", oldVersion.get("_id")), newVersion);
        }
    }

    @Override
    public void update(DBObject newVersion) {
        dbCollection.save(newVersion);
    }

    @Override
    public void insert(DBObject dbObject) {
        try {
            dbCollection.insert(dbObject);
        } catch (DuplicateKeyException e) {
            throw new DuplicateDocumentKeyException(e.getMessage());
        }
    }

    @Override
    public void delete(BasicDBObject dbObject) {
        dbCollection.remove(dbObject);
    }

    @Override
    public void insertAll(DBObject... dbObjects) {
        dbCollection.insert(dbObjects); // TODO: test for this method
    }

}