monasca.common.hibernate.db.AlarmDefinitionDb.java Source code

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Here is the source code for monasca.common.hibernate.db.AlarmDefinitionDb.java

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/*
 * Copyright 2015 FUJITSU LIMITED
 *
 * 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 monasca.common.hibernate.db;

import java.util.Collection;
import java.util.Collections;
import java.util.Date;

import javax.annotation.Nullable;
import javax.persistence.Basic;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.EnumType;
import javax.persistence.Enumerated;
import javax.persistence.FetchType;
import javax.persistence.Index;
import javax.persistence.Lob;
import javax.persistence.NamedQueries;
import javax.persistence.NamedQuery;
import javax.persistence.OneToMany;
import javax.persistence.Table;

import com.google.common.base.Function;
import com.google.common.collect.FluentIterable;
import com.google.common.collect.Lists;
import com.google.common.collect.Sets;
import org.hibernate.annotations.BatchSize;
import org.hibernate.annotations.Type;
import org.joda.time.DateTime;

import monasca.common.model.alarm.AlarmSeverity;

@Entity
@Table(name = "alarm_definition", indexes = { @Index(name = "tenant_id", columnList = "tenant_id"),
        @Index(name = "deleted_at", columnList = "deleted_at") })
@NamedQueries({
        @NamedQuery(name = AlarmDefinitionDb.Queries.FIND_BY_TENANT_AND_ID_NOT_DELETED, query = "from AlarmDefinitionDb ad "
                + "where ad.tenantId = :tenant_id " + "and ad.id = :id " + "and ad.deletedAt is NULL "
                + "group by ad.id"),
        @NamedQuery(name = AlarmDefinitionDb.Queries.FIND_BY_TENANT_ID_AND_ID, query = "from AlarmDefinitionDb alarm_definition "
                + "where alarm_definition.tenantId=:tenantId " + "and alarm_definition.id= :id") })
public class AlarmDefinitionDb extends AbstractAuditablePersistable<String> {
    private static final long serialVersionUID = 2566210444329934008L;
    private static final String DEFAULT_MATCH_BY = "";
    private static final String DEFAULT_NAME = "";
    private static final boolean DEFAULT_ACTIONS_ENABLED = true;
    @Column(name = "tenant_id", length = 36, nullable = false)
    private String tenantId;

    @Column(name = "name", length = 255, nullable = false)
    private String name = DEFAULT_NAME;

    @Column(name = "description", length = 255)
    private String description;

    @Lob
    @Type(type = "text")
    @Basic(fetch = FetchType.LAZY)
    @Column(name = "expression", nullable = false, length = 16777215)
    private String expression;

    @Column(name = "severity", nullable = false)
    @Enumerated(EnumType.STRING)
    private AlarmSeverity severity;

    @Column(name = "match_by", length = 255)
    private String matchBy = DEFAULT_MATCH_BY;

    @Column(name = "actions_enabled", length = 1, nullable = false)
    private boolean actionsEnabled = DEFAULT_ACTIONS_ENABLED;

    @Column(name = "deleted_at")
    private Date deletedAt;

    @BatchSize(size = 50)
    @OneToMany(mappedBy = "alarmDefinition", fetch = FetchType.LAZY)
    private Collection<AlarmDb> alarms;

    public AlarmDefinitionDb() {
        super();
    }

    public AlarmDefinitionDb(String id, String tenantId, String name, String description, String expression,
            AlarmSeverity severity, String matchBy, boolean actionsEnabled, DateTime created_at,
            DateTime updated_at, DateTime deletedAt) {
        super(id, created_at, updated_at);
        this.id = id;
        this.tenantId = tenantId;
        this.name = name;
        this.description = description;
        this.expression = expression;
        this.severity = severity;
        this.matchBy = matchBy;
        this.actionsEnabled = actionsEnabled;
        this.setDeletedAt(deletedAt);
    }

    public AlarmDefinitionDb(String id, String tenantId, String expression, AlarmSeverity severity,
            DateTime created_at, DateTime updated_at) {
        this(id, tenantId, null, null, expression, severity, DEFAULT_MATCH_BY, DEFAULT_ACTIONS_ENABLED, created_at,
                updated_at, null);
    }

    public AlarmDefinitionDb setDeletedAt(final DateTime deletedAt) {
        this.deletedAt = nullSafeSetDate(deletedAt);
        return this;
    }

    public AlarmDefinitionDb setTenantId(final String tenantId) {
        this.tenantId = tenantId;
        return this;
    }

    public AlarmDefinitionDb setName(final String name) {
        this.name = name;
        return this;
    }

    public AlarmDefinitionDb setDescription(final String description) {
        this.description = description;
        return this;
    }

    public AlarmDefinitionDb setExpression(final String expression) {
        this.expression = expression;
        return this;
    }

    public AlarmDefinitionDb setSeverity(final AlarmSeverity severity) {
        this.severity = severity;
        return this;
    }

    public AlarmDefinitionDb setMatchBy(final String matchBy) {
        this.matchBy = matchBy;
        return this;
    }

    public AlarmDefinitionDb setActionsEnabled(final boolean actionsEnabled) {
        this.actionsEnabled = actionsEnabled;
        return this;
    }

    public String getTenantId() {
        return tenantId;
    }

    public String getName() {
        return name;
    }

    public String getDescription() {
        return description;
    }

    public String getExpression() {
        return expression;
    }

    public AlarmSeverity getSeverity() {
        return severity;
    }

    public String getMatchBy() {
        return matchBy;
    }

    public Collection<String> getMatchByAsCollection() {
        if (this.matchBy == null) {
            return Collections.emptyList();
        }
        return Lists.newArrayList(this.matchBy.split(","));
    }

    public boolean isActionsEnabled() {
        return actionsEnabled;
    }

    public DateTime getDeletedAt() {
        return nullSafeGetDate(this.deletedAt);
    }

    public boolean hasAlarm(final AlarmDb alarm) {
        return alarm != null && (this.alarms != null && this.alarms.contains(alarm));
    }

    public Collection<AlarmDb> getAlarms() {
        return this.alarms != null ? this.alarms : (this.alarms = Sets.newHashSet());
    }

    public AlarmDefinitionDb setAlarms(final Collection<AlarmDb> alarms) {
        final AlarmDefinitionDb self = this;
        this.alarms = Sets.newHashSetWithExpectedSize(alarms.size());
        FluentIterable.from(alarms).transform(new Function<AlarmDb, AlarmDb>() {
            @Nullable
            @Override
            public AlarmDb apply(@Nullable final AlarmDb input) {
                assert input != null;
                input.setAlarmDefinition(self);
                return input;
            }
        }).copyInto(this.alarms);
        return this;
    }

    public AlarmDefinitionDb addAlarm(final AlarmDb alarmDb) {
        if (alarmDb == null || this.hasAlarm(alarmDb)) {
            return this;
        }
        this.getAlarms().add(alarmDb);
        alarmDb.setAlarmDefinition(this);
        return this;
    }

    public AlarmDefinitionDb removeAlarm(final AlarmDb alarmDb) {
        if (alarmDb == null || this.alarms == null) {
            return this;
        }
        this.getAlarms().remove(alarmDb);
        return this;
    }

    public interface Queries {
        String FIND_BY_TENANT_AND_ID_NOT_DELETED = "AlarmDefinition.byTenantAndIdNotDeleted";
        String FIND_BY_TENANT_ID_AND_ID = "AlarmDefinition.byTenantIdAndId";
    }

}