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/**
 * Creative commons Attribution-NonCommercial license.
 *
 * http://creativecommons.org/licenses/by-nc/2.5/au/deed.en_GB
 *
 * NO WARRANTY IS GIVEN OR IMPLIED, USE AT YOUR OWN RISK.
 */
package base.security;

import java.util.UUID;

import base.QueryResult;
import base.json.Json;

/**
 * Role information. getPerson() may or may
 * not be set depending on the Command that is returning
 * the role object.
 */
public class PersonRole implements QueryResult {

	private Person person;
	private UUID personUuid;
	private String resource;
	private String uid;
	private String role;

	public PersonRole(Person person, String resource, String uid, String role) {
		this.personUuid = person.getUuid();
		this.resource = resource;
		this.uid = uid;
		this.person = person;
		this.role = role;

		if(resource == null && uid != null) {
			throw new IllegalArgumentException("If a uid is specified, a resource type must be specified.");
		}
		if(resource != null && uid == null) {
			throw new IllegalArgumentException("If a resource type is specified, a uid must be specified.");
		}

	}

	public PersonRole(UUID personUuid, String role) {
		this.personUuid = personUuid;
		this.role = role;
	}

	public PersonRole(UUID personUuid, String resource, String uid, String role) {
		this.personUuid = personUuid;
		this.resource = resource;
		this.uid = uid;
		this.role = role;

		if(resource == null && uid != null) {
			throw new IllegalArgumentException("If a uid is specified, a resource type must be specified.");
		}
		if(resource != null && uid == null) {
			throw new IllegalArgumentException("If a resource type is specified, a uid must be specified.");
		}
	}

	public Person getPerson() {
		return person;
	}

	public UUID getPersonUuid() {
		return personUuid;
	}

	public String getResource() {
		return resource;
	}

	public String getUid() {
		return uid;
	}

	public String getRole() {
		return role;
	}

	public String toString() {
		return toJson();
	}

	@Override
	public String toJson() {
		return "{" +
				"\"person\":\"" + personUuid.toString() + "\"," +
				(resource != null?"\"resource\":\"" + resource + "\",":"") +
				(uid != null?"\"uid\":\"" + uid + "\",":"") +
				"\"role\":\"" + Json.escape(role) + "\"" +
				"}";
	}

}