/*-
 * ============LICENSE_START=======================================================
 * ONAP-REST
 * ================================================================================
 * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
 * ================================================================================
 * 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.
 * ============LICENSE_END=========================================================
 */

package org.onap.policy.rest.jpa;

import java.io.Serializable;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.NamedQuery;
import javax.persistence.OneToMany;
import javax.persistence.Table;

@Entity
@Table(name="ConstraintType")
@NamedQuery(name="ConstraintType.findAll", query="SELECT a FROM ConstraintType a")
public class ConstraintType implements Serializable {
	private static final long serialVersionUID = 1L;
	
	public static final String ENUMERATION_TYPE = "Enumeration";
	public static final String RANGE_TYPE = "Range";
	public static final String REGEXP_TYPE = "Regular Expression";
	
	protected static final Map<String, String> defaults = new HashMap<>();
	static {
		defaults.put(ENUMERATION_TYPE, "Enumerate a set of values that the attribute may be set to during policy creation.");
		defaults.put(RANGE_TYPE, "Set a range of min and/or max integer/double values the attribute can be set to during policy creation.");
		defaults.put(REGEXP_TYPE, "Define a regular expression the attribute must match against during policy creation.");
	}
	private static final String[] RANGE_TYPES = {"minExclusive", "minInclusive", "maxExclusive", "maxInclusive"};
	
	@Id
	@GeneratedValue(strategy = GenerationType.AUTO)
	@Column(name="id")
	private int id;

	@Column(name="constraint_type", nullable=false, length=64)
	private String constraintType;
	
	@Column(name="description", nullable=false, length=255)
	private String description;

	//bi-directional many-to-one association to Attribute
	@OneToMany(mappedBy="constraintType")
	private Set<Attribute> attributes = new HashSet<>();

	public ConstraintType() {
		//An empty constructor
	}

	public ConstraintType(String constraintType) {
		this();
		this.constraintType = constraintType;
	}
	
	public ConstraintType(String constraintType, String description) {
		this(constraintType);
		this.description = description;
	}

	public int getId() {
		return id;
	}

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

	public String getConstraintType() {
		return constraintType;
	}

	public void setConstraintType(String constraintType) {
		this.constraintType = constraintType;
	}

	public String getDescription() {
		return description;
	}

	public void setDescription(String description) {
		this.description = description;
	}

	public Set<Attribute> getAttributes() {
		return attributes;
	}

	public void setAttributes(Set<Attribute> attributes) {
		this.attributes = attributes;
	}

	public static String[] getRangeTypes() {
		return RANGE_TYPES;
	}

}