io.curly.gathering.list.GatheringList.java Source code

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Here is the source code for io.curly.gathering.list.GatheringList.java

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/*
 *        Copyright 2015 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 io.curly.gathering.list;

import io.curly.gathering.item.ListItem;
import io.curly.gathering.mention.UserParticipant;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import org.jetbrains.annotations.NotNull;
import org.springframework.data.annotation.Id;
import org.springframework.data.mongodb.core.mapping.Document;
import org.springframework.data.mongodb.core.mapping.Field;

import java.io.Serializable;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;

import static org.springframework.util.Assert.notNull;

/**
 * @author Joo Pedro Evangelista
 */
@Data
@Document
@NoArgsConstructor
@AllArgsConstructor
public class GatheringList implements Serializable {

    @Id
    private String id;

    @Field
    private String owner;

    @Field
    private String name;

    @Field
    private Set<UserParticipant> participants;

    @Field
    private Set<ListItem> items;

    public GatheringList(String name, String owner) {
        this.id = null;
        this.owner = owner;
        this.name = name;
        this.participants = new HashSet<>(0);
        this.items = new HashSet<>(0);
    }

    public String getId() {
        return id;
    }

    @NotNull
    public String getOwner() {
        return owner;
    }

    @NotNull
    public Set<UserParticipant> getParticipants() {
        return Collections.unmodifiableSet(this.participants);
    }

    @NotNull
    public Set<ListItem> getItems() {
        return Collections.unmodifiableSet(this.items);
    }

    public String getName() {
        return this.name;
    }

    @NotNull
    public GatheringList add(@NotNull ListItem item) {
        notNull(item, "To add a item, it must be not null!");
        this.items.add(item);
        return new GatheringList(this.id, this.owner, this.name, this.participants, this.items);
    }

    @NotNull
    public GatheringList add(@NotNull UserParticipant participant) {
        this.participants.add(participant);
        return new GatheringList(this.id, this.owner, this.name, this.participants, this.items);
    }

    @NotNull
    public GatheringList remove(@NotNull ListItem item) {
        this.items.remove(item);
        return new GatheringList(this.id, this.owner, this.name, this.participants, this.items);

    }

    @NotNull
    public GatheringList remove(@NotNull UserParticipant userParticipant) {
        this.participants.remove(userParticipant);
        return new GatheringList(this.id, this.owner, this.name, this.participants, this.items);
    }
}