com.sun.tv.si.ServiceDescriptionImpl Maven / Gradle / Ivy
/*
* @(#)ServiceDescriptionImpl.java 1.6 00/01/19
*
* Copyright 1998-2000 by Sun Microsystems, Inc.,
* 901 San Antonio Road, Palo Alto, California, 94303, U.S.A.
* All rights reserved.
*
* This software is the confidential and proprietary information
* of Sun Microsystems, Inc. ("Confidential Information"). You
* shall not disclose such Confidential Information and shall use
* it only in accordance with the terms of the license agreement
* you entered into with Sun.
*/
package com.sun.tv.si;
import java.util.*;
import javax.tv.locator.*;
import javax.tv.service.*;
import javax.tv.service.navigation.*;
import com.sun.tv.*;
/**
* This SIElement provides a textual description of a
* Service.
*
* (In ATSC PSIP, this information is obtained from the ETT
* associated with this service.)
*/
public class ServiceDescriptionImpl implements ServiceDescription, SIElement {
private String serviceName;
private String description;
private Date updatedTime;
private ServiceImpl service = null;
private Locator locator = null;
public ServiceDescriptionImpl(
Service serviceImpl, String serviceName, String description, Date updatedTime) {
this.service = service;
this.serviceName = serviceName;
this.description = description;
this.updatedTime = updatedTime;
}
/**
* Provides a textual description of the Service.
*
* @return A textual description of the Service.
*/
public String getServiceDescription() {
return this.description;
}
/**
* Returns the time when this object was last updated from data in
* the broadcast.
*
* @return The date of the last update in UTC format, or null
* if unknown.
*/
public Date getUpdateTime() {
return this.updatedTime;
}
/**
* Gets the complete Locator of this SI Element. Each SI Element (such as
* BroadcastService, ProgramEvent, etc.) in the MPEG-2 domain is
* identified by a Locator. This identification is encapsulated by the
* Locator object which may use a URL format, specific MPEG numbers, such
* as network ID, etc., or other mechanisms.
*
* @return Locator representing this SI Element
*/
public Locator getLocator() {
if (this.locator == null) {
try {
this.locator = LocatorFactory.getInstance().createLocator(
LocatorImpl.ServiceDescriptionProtocol + serviceName);
} catch (Exception e) {
;
}
}
return this.locator;
}
/**
* Reports the service information format of this object.
*
* @return The service information format.
*/
public ServiceInformationType getServiceInformationType() {
return service.getServiceInformationType();
}
}