com.images3.data.impl.ImagePlantAccessImplMongoDB.java Source code

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Here is the source code for com.images3.data.impl.ImagePlantAccessImplMongoDB.java

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/*******************************************************************************
 * Copyright 2014 Rui Sun
 *
 * 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.images3.data.impl;

import java.util.ArrayList;
import java.util.List;

import com.images3.data.ImagePlantOS;
import com.images3.data.spi.ImagePlantAccess;

import org.gogoup.dddutils.pagination.PaginatedResult;

import com.mongodb.BasicDBObject;
import com.mongodb.DBCollection;
import com.mongodb.DBCursor;
import com.mongodb.DBObject;
import com.mongodb.MongoClient;
import com.mongodb.WriteResult;

public class ImagePlantAccessImplMongoDB extends MongoDBAccess<ImagePlantOS> implements ImagePlantAccess {

    public ImagePlantAccessImplMongoDB(MongoClient mongoClient, String dbname, MongoDBObjectMapper objectMapper,
            int pageSize) {
        super(mongoClient, dbname, objectMapper, pageSize);
    }

    public boolean isDuplicatedImagePlantName(String name) {
        DBCollection coll = getDatabase().getCollection("ImagePlant");
        BasicDBObject criteria = new BasicDBObject().append("nameKey", name.toLowerCase());
        DBCursor cursor = coll.find(criteria);
        return cursor.hasNext();
    }

    public String genertateImagePlantId() {
        return ShortUUID.randomUUID();
    }

    public void insertImagePlant(ImagePlantOS imagePlant) {
        DBCollection coll = getDatabase().getCollection("ImagePlant");
        coll.insert(getObjectMapper().mapToBasicDBObject(imagePlant));
    }

    public void updateImagePlant(ImagePlantOS imagePlant) {
        DBCollection coll = getDatabase().getCollection("ImagePlant");
        BasicDBObject criteria = new BasicDBObject().append("id", imagePlant.getId());
        WriteResult result = coll.update(criteria, getObjectMapper().mapToBasicDBObject(imagePlant));
        checkForAffectedDocuments(result, 1);
    }

    public void deleteImagePlant(ImagePlantOS imagePlant) {
        DBCollection coll = getDatabase().getCollection("ImagePlant");
        BasicDBObject criteria = new BasicDBObject().append("id", imagePlant.getId());
        WriteResult result = coll.remove(criteria);
        checkForAffectedDocuments(result, 1);
    }

    public ImagePlantOS selectImagePlantById(String id) {
        DBCollection coll = getDatabase().getCollection("ImagePlant");
        BasicDBObject criteria = new BasicDBObject().append("id", id);
        DBCursor cursor = coll.find(criteria);
        if (!cursor.hasNext()) {
            return null;
        }
        return getObjectMapper().mapToImagePlantOS((BasicDBObject) cursor.next());
    }

    public PaginatedResult<List<ImagePlantOS>> selectAllImagePlants() {
        return new PaginatedResult<List<ImagePlantOS>>(this, "getAllImagePlants", new Object[0]) {
        };
    }

    public List<ImagePlantOS> fetchResult(String tag, Object[] arguments, Object pageCursor) {
        if ("getAllImagePlants".equals(tag)) {
            PageCursor cursor = selectPageCursorById((String) pageCursor);
            return getAllImagePlants(cursor.getPage());
        }
        throw new UnsupportedOperationException(tag);
    }

    @Override
    public boolean isFetchAllResultsSupported(String tag, Object[] arguments) {
        if ("getAllImagePlants".equals(tag)) {
            return false;
        }
        throw new UnsupportedOperationException(tag);
    }

    @Override
    public List<ImagePlantOS> fetchAllResults(String tag, Object[] arguments) {
        throw new UnsupportedOperationException(tag);
    }

    private List<ImagePlantOS> getAllImagePlants(Page pageCursor) {
        DBCollection coll = getDatabase().getCollection("ImagePlant");
        int skipRecords = (pageCursor.getStart() - 1) * pageCursor.getSize();
        List<DBObject> objects = coll.find().skip(skipRecords).limit(pageCursor.getSize()).toArray();
        List<ImagePlantOS> imagePlants = new ArrayList<ImagePlantOS>(objects.size());
        for (DBObject obj : objects) {
            imagePlants.add(getObjectMapper().mapToImagePlantOS((BasicDBObject) obj));
        }
        return imagePlants;
    }

    @Override
    public Object getFirstPageCursor(String tag, Object[] arguments) {
        return nextPageCursor(null).getId();
    }

    @Override
    public Object getNextPageCursor(String tag, Object[] arguments, Object pageCursor, List<ImagePlantOS> result) {
        return nextPageCursorId(tag, arguments, pageCursor, result);
    }

    @Override
    public Object getPrevPageCursor(String tag, Object[] arguments, Object pageCursor, List<ImagePlantOS> result) {
        return previousPageCursorId(tag, arguments, pageCursor, result);
    }

}