CompaniesRepository.java

/*
 *  Copyright(c) 2017 lizhaotailang
 *
 * 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 io.github.marktony.espresso.data.source;

import android.support.annotation.NonNull;
import android.support.annotation.Nullable;

import java.util.List;

import io.github.marktony.espresso.data.Company;
import io.reactivex.Observable;

/**
 * Created by lizhaotailang on 2017/3/22.
 */

public class CompaniesRepository implements CompaniesDataSource {

    @Nullable
    private static CompaniesRepository INSTANCE = null;

    @NonNull
    private final CompaniesDataSource localDataSource;

    // Prevent direct instantiation
    private CompaniesRepository(@NonNull CompaniesDataSource localDataSource) {
        this.localDataSource = localDataSource;
    }

    public static CompaniesRepository getInstance(@NonNull CompaniesDataSource localDataSource) {
        if (INSTANCE == null) {
            INSTANCE = new CompaniesRepository(localDataSource);
        }
        return INSTANCE;
    }

    @Override
    public Observable<List<Company>> getCompanies() {
        return localDataSource.getCompanies();
    }

    @Override
    public Observable<Company> getCompany(@NonNull String companyId) {
        return localDataSource.getCompany(companyId);
    }

    @Override
    public void initData() {
        localDataSource.initData();
    }

    @Override
    public Observable<List<Company>> searchCompanies(@NonNull String keyWords) {
        return localDataSource.searchCompanies(keyWords);
    }

}