Translation Helper Utility

Translation.java

package com.unhcr.unhcr.utils;

import android.app.Activity;
import android.support.v4.app.Fragment;

import com.parse.FindCallback;
import com.parse.ParseException;
import com.parse.ParseObject;
import com.parse.ParseQuery;
import com.unhcr.unhcr.background.HelpBackground;
import com.unhcr.unhcr.background.OrganizationBackground;
import com.unhcr.unhcr.background.NotesBackground;
import com.unhcr.unhcr.helper.Manager;
import com.unhcr.unhcr.models.Help;

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

//
//  Translation.java
//  Salam
//
//  Created by Fábio Carvalho
//  Copyright © 2016 Tetrapi. All rights reserved.
//

class Translation {

    private Activity activity;
    private Manager manager;

    Translation(Activity activity) {
        this.activity = activity;
        this.manager = new Manager(activity);
    }

    void getHelpTranslation(final Fragment fragment, final List<ParseObject> objects) {
        ArrayList<String> queryClasses = new ArrayList<>();
        queryClasses.add("HelpItem");
        queryClasses.add("HelpCategory");

        ParseQuery<ParseObject> query = new ParseQuery<>("Translation");
        query.whereContainedIn("sourceObjectClass", queryClasses);
        query.whereMatches("language", manager.getLanguage());
        query.setLimit(1000);
        query.findInBackground(new FindCallback<ParseObject>() {
            public void done(final List<ParseObject> list, final ParseException e) { new HelpBackground(fragment, objects, convertToHashMap(list)).execute(); }
        });
    }

    void getNotesTranslation(final Help help, final List<ParseObject> objects) {
        ArrayList<String> queryObjects = new ArrayList<>();
        for (ParseObject object : objects) queryObjects.add(object.getObjectId());

        ParseQuery<ParseObject> query = new ParseQuery<>("Translation");
        query.whereContainedIn("sourceObjectId", queryObjects);
        query.whereMatches("sourceObjectClass", "HelpNote") ;
        query.whereMatches("language", manager.getLanguage());
        query.setLimit(1000);
        query.findInBackground(new FindCallback<ParseObject>() {
            public void done(final List<ParseObject> list, final ParseException e) { new NotesBackground(activity, objects, convertToHashMap(list)).execute(); } });
    }

    void getOrganizationsTranslation(final Fragment fragment, final List<ParseObject> objects) {
        ArrayList<String> queryClasses = new ArrayList<>();
        queryClasses.add("Organization");
        queryClasses.add("HelpCategory");

        ParseQuery<ParseObject> query = new ParseQuery<>("Translation");
        query.whereContainedIn("sourceObjectClass", queryClasses);
        query.whereMatches("language", manager.getLanguage());
        query.setLimit(1000);
        query.findInBackground(new FindCallback<ParseObject>() {
            public void done(final List<ParseObject> list, final ParseException e) { new OrganizationBackground(fragment, objects, convertToHashMap(list)).execute(); } });
    }

    private HashMap<String, HashMap<String, ParseObject>> convertToHashMap(List<ParseObject> list) {
        HashMap<String, HashMap<String, ParseObject>> translations = new HashMap<>();
        for (ParseObject translation : list) {
            HashMap<String, ParseObject> objectValue = translations.get(translation.getString("sourceObjectId"));
            if (objectValue != null) objectValue.put(translation.getString("sourceObjectProperty"), translation);
            else objectValue = new HashMap<>(); objectValue.put(translation.getString("sourceObjectProperty"), translation);
            translations.put(translation.getString("sourceObjectId"), objectValue);
        } return translations;
    }
}