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/*
 * 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.teradata.benchto.service.model;

import com.fasterxml.jackson.annotation.JsonIgnore;
import org.hibernate.annotations.BatchSize;
import org.hibernate.annotations.Cache;
import org.hibernate.annotations.Type;

import javax.persistence.Cacheable;
import javax.persistence.CollectionTable;
import javax.persistence.Column;
import javax.persistence.ElementCollection;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.MapKeyColumn;
import javax.persistence.SequenceGenerator;
import javax.persistence.Table;
import javax.persistence.UniqueConstraint;
import javax.persistence.Version;
import javax.validation.constraints.Size;

import java.io.Serializable;
import java.time.ZonedDateTime;
import java.util.Map;
import java.util.Objects;

import static com.google.common.base.MoreObjects.toStringHelper;
import static com.google.common.collect.Maps.newHashMap;
import static javax.persistence.FetchType.EAGER;
import static org.hibernate.annotations.CacheConcurrencyStrategy.TRANSACTIONAL;

@Entity
@Cacheable
@Table(name = "environments", uniqueConstraints = @UniqueConstraint(columnNames = {"name"}))
public class Environment
        implements Serializable
{

    public static final String DEFAULT_ENVIRONMENT_NAME = "name";

    @Id
    @SequenceGenerator(name = "environments_id_seq",
            sequenceName = "environments_id_seq",
            allocationSize = 1)
    @GeneratedValue(strategy = GenerationType.SEQUENCE,
            generator = "environments_id_seq")
    @Column(name = "id")
    @JsonIgnore
    private long id;

    @Size(min = 1, max = 64)
    @Column(name = "name")
    private String name;

    @JsonIgnore
    @Column(name = "version")
    @Version
    private Long version;

    @Cache(usage = TRANSACTIONAL)
    @BatchSize(size = 10)
    @ElementCollection(fetch = EAGER)
    @MapKeyColumn(name = "name")
    @Column(name = "value")
    @CollectionTable(name = "environment_attributes", joinColumns = @JoinColumn(name = "environment_id"))
    private Map attributes = newHashMap();

    @Column(name = "started")
    @Type(type = "org.jadira.usertype.dateandtime.threeten.PersistentZonedDateTime")
    private ZonedDateTime started;

    public long getId()
    {
        return id;
    }

    public void setId(long id)
    {
        this.id = id;
    }

    public String getName()
    {
        return name;
    }

    public void setName(String name)
    {
        this.name = name;
    }

    public Long getVersion()
    {
        return version;
    }

    public void setVersion(Long version)
    {
        this.version = version;
    }

    public Map getAttributes()
    {
        return attributes;
    }

    public void setAttributes(Map attributes)
    {
        this.attributes = attributes;
    }

    public ZonedDateTime getStarted()
    {
        return started;
    }

    public void setStarted(ZonedDateTime started)
    {
        this.started = started;
    }

    @Override
    public boolean equals(Object o)
    {
        if (this == o) {
            return true;
        }
        if (o == null || getClass() != o.getClass()) {
            return false;
        }
        Environment that = (Environment) o;
        return Objects.equals(name, that.name);
    }

    @Override
    public int hashCode()
    {
        return Objects.hash(name);
    }

    @Override
    public String toString()
    {
        return toStringHelper(this)
                .add("id", id)
                .add("name", name)
                .add("version", version)
                .add("attributes", attributes)
                .add("started", started)
                .toString();
    }
}