controller.ProductController.java Source code

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Here is the source code for controller.ProductController.java

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package controller;

import com.mongodb.MongoClient;
import com.mongodb.client.FindIterable;
import com.mongodb.client.MongoCollection;
import com.mongodb.client.MongoDatabase;
import static com.mongodb.client.model.Filters.eq;
import org.bson.Document;

/**
 *
 * @author Dhruba
 */
public class ProductController {

    MongoDatabase db;

    public void connect() {
        MongoClient mongoClient = new MongoClient("localhost", 27017);
        db = mongoClient.getDatabase("shopmanagement");
        System.out.println("connected");
    }

    public void insert(Document doc) {
        MongoCollection<Document> booklist = db.getCollection("product");
        booklist.insertOne(doc);
    }

    public void delete(String attr, Object val) {
        MongoCollection<Document> booklist = db.getCollection("product");
        booklist.deleteOne(eq(attr, val));
    }

    public String find(String val) {
        MongoCollection<Document> booklist = db.getCollection("product");
        FindIterable<Document> res = booklist.find(eq("Item Name", val));
        String attr = res.first().get("Price", String.class);
        return attr;
    }

    public String quantity(String val) {
        MongoCollection<Document> booklist = db.getCollection("product");
        FindIterable<Document> res = booklist.find(eq("Item Name", val));
        String attr = res.first().get("Quantity", String.class);
        return attr;
    }

    public int index(String val) {
        MongoCollection<Document> booklist = db.getCollection("product");
        FindIterable<Document> res = booklist.find(eq("Item Name", val));
        int attr = res.first().get("itemId", Integer.class);
        return attr;
    }

    public void update(String attr, Object val, Document doc) {
        MongoCollection<Document> booklist = db.getCollection("product");
        booklist.updateOne(eq(attr, val), new Document("$set", doc));
    }

    public void update(String attr, Object val, String doc, String vale) {
        MongoCollection<Document> booklist = db.getCollection("product");
        booklist.updateOne(eq(attr, val), new Document("$set", new Document(doc, vale)));
    }

    public MongoCollection<Document> getData() {
        return db.getCollection("product");
    }

    public int getIndex() {
        Document doc = new Document();
        MongoCollection<Document> col = db.getCollection("product");
        if (col.count() <= 0)
            return 0;
        for (Document d : col.find())
            doc = d;
        int j = (int) doc.get("itemId");
        return j + 1;
    }

}