com.trenako.activities.ActivityStreamImpl.java Source code

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Here is the source code for com.trenako.activities.ActivityStreamImpl.java

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/*
 * Copyright 2012 the original author or authors.
 * 
 * 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.trenako.activities;

import java.util.Collections;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.domain.Pageable;
import org.springframework.data.domain.Sort.Direction;
import org.springframework.stereotype.Service;

import com.trenako.entities.Account;
import com.trenako.entities.Collection;
import com.trenako.entities.CollectionItem;
import com.trenako.entities.Comment;
import com.trenako.entities.Review;
import com.trenako.entities.RollingStock;
import com.trenako.entities.WishList;
import com.trenako.entities.WishListItem;
import com.trenako.mapping.WeakDbRef;
import com.trenako.repositories.ActivityRepository;

/**
 * @author Carlo Micieli
 */
@Service("activityStream")
public class ActivityStreamImpl implements ActivityStream {

    private final ActivityRepository repo;

    @Autowired
    public ActivityStreamImpl(ActivityRepository repo) {
        this.repo = repo;
    }

    @Override
    public void comment(RollingStock rs, Comment comment) {
        Activity act = Activity.buildForComment(comment, WeakDbRef.buildRef(rs));
        repo.save(act);
    }

    @Override
    public void review(RollingStock rs, Review review) {
        Activity act = Activity.buildForReview(review, WeakDbRef.buildRef(rs));
        repo.save(act);
    }

    @Override
    public void createRollingStock(RollingStock rs) {
        Activity act = Activity.buildForRsCreate(rs);
        repo.save(act);
    }

    @Override
    public void changeRollingStock(RollingStock rs) {
        Activity act = Activity.buildForRsChange(rs);
        repo.save(act);
    }

    @Override
    public void wishList(WishList wishList, WishListItem item) {
        Activity act = Activity.buildForWishList(wishList, item);
        repo.save(act);
    }

    @Override
    public void collection(Account owner, CollectionItem item) {
        Collection collection = new Collection(owner);
        Activity act = Activity.buildForCollection(collection, item);
        repo.save(act);
    }

    @Override
    public Iterable<Activity> recentActivity(int numberOfItems) {
        Pageable pageable = new PageRequest(0, numberOfItems, Direction.DESC, "recorded");
        Page<Activity> results = repo.findAll(pageable);

        if (!results.hasContent()) {
            return Collections.emptyList();
        }

        return results.getContent();
    }

    @Override
    public Iterable<Activity> userActivity(Account user, int numberOfItems) {
        Pageable pageable = new PageRequest(0, numberOfItems, Direction.DESC, "recorded");
        return repo.findByActor(user.getSlug(), pageable);
    }
}