javax.ws.rs.core.Response.ResponseBuilder#lastModified()源码实例Demo

private ResponseBuilder getBuilder(final String jsonEntity, final Date lastMod, final boolean includeEtag, final Request request) {
	String etagSource = DominoUtils.md5(jsonEntity);
	EntityTag etag = new EntityTag(etagSource);
	ResponseBuilder berg = null;
	if (request != null) {
		berg = request.evaluatePreconditions(etag);
	}
	if (berg == null) {
		berg = Response.ok();
		if (includeEtag) {
			berg.tag(etag);
		}
		berg.type(MediaType.APPLICATION_JSON_TYPE);
		berg.entity(jsonEntity);
		berg.lastModified(lastMod);
		CacheControl cc = new CacheControl();
		cc.setMustRevalidate(true);
		cc.setPrivate(true);
		cc.setMaxAge(86400);
		cc.setNoTransform(true);
		berg.cacheControl(cc);
	}
	return berg;
}
 

private ResponseBuilder getBuilder(final String jsonEntity, final Date lastMod, final boolean includeEtag, final Request request) {
	String etagSource = DominoUtils.md5(jsonEntity);
	EntityTag etag = new EntityTag(etagSource);
	ResponseBuilder berg = null;
	if (request != null) {
		berg = request.evaluatePreconditions(etag);
	}
	if (berg == null) {
		berg = Response.ok();
		if (includeEtag) {
			berg.tag(etag);
		}
		berg.type(MediaType.APPLICATION_JSON_TYPE);
		berg.entity(jsonEntity);
		berg.lastModified(lastMod);
		CacheControl cc = new CacheControl();
		cc.setMustRevalidate(true);
		cc.setPrivate(true);
		cc.setMaxAge(86400);
		cc.setNoTransform(true);
		berg.cacheControl(cc);
	}
	return berg;
}
 

private ResponseBuilder getBuilder(final String jsonEntity, final Date lastMod, final boolean includeEtag, final Request request) {
	String etagSource = DominoUtils.md5(jsonEntity);
	EntityTag etag = new EntityTag(etagSource);
	ResponseBuilder berg = null;
	if (request != null) {
		berg = request.evaluatePreconditions(etag);
	}
	if (berg == null) {
		// System.out.println("TEMP DEBUG creating a new builder");
		berg = Response.ok();
		if (includeEtag) {
			berg.tag(etag);
		}
		berg.type(MediaType.APPLICATION_JSON_TYPE);
		berg.entity(jsonEntity);
		berg.lastModified(lastMod);
		CacheControl cc = new CacheControl();
		cc.setMustRevalidate(true);
		cc.setPrivate(true);
		cc.setMaxAge(86400);
		cc.setNoTransform(true);
		berg.cacheControl(cc);
	}
	return berg;
}
 

/**
 * Get the standard headers.
 * @param builder the response builder
 * @return the response builder
 */
public ResponseBuilder standardHeaders(final ResponseBuilder builder) {

    // Standard HTTP Headers
    builder.lastModified(from(getResource().getModified()));

    if (syntax != null) {
        builder.type(syntax.mediaType());
    }

    final IRI model;
    if (getRequest().getExt() == null || DESCRIPTION.equals(getRequest().getExt())) {
        model = getResource().getBinaryMetadata().isPresent() && syntax != null
            ? LDP.RDFSource : getResource().getInteractionModel();
        // Link headers from User data
        getResource().getExtraLinkRelations().collect(toMap(Map.Entry::getKey, Map.Entry::getValue))
                .forEach((key, value) -> builder.link(key, join(" ", value)));
    } else {
        model = LDP.RDFSource;
    }

    // Add LDP-required headers
    addLdpHeaders(builder, model);

    // Memento-related headers
    if (isMemento) {
        builder.header(MEMENTO_DATETIME, from(getResource().getModified()));
    }

    return builder;
}
 

private ResponseBuilder getBuilder(final String jsonEntity, final Date lastMod, final boolean includeEtag, final Request request) {
	String etagSource = DominoUtils.md5(jsonEntity);
	EntityTag etag = new EntityTag(etagSource);
	ResponseBuilder berg = null;
	if (request != null) {
		berg = request.evaluatePreconditions(etag);
	}

	if (berg == null) {
		berg = Response.ok();
		if (includeEtag) {
			berg.tag(etag);
		}
		berg.type(MediaType.APPLICATION_JSON_TYPE).entity(jsonEntity);
		berg.lastModified(lastMod);
		CacheControl cc = new CacheControl();
		cc.setMustRevalidate(true);
		cc.setPrivate(true);
		cc.setMaxAge(86400);
		cc.setNoTransform(true);
		berg.cacheControl(cc);
	} else {
		// System.out.println("TEMP DEBUG got a hit for etag " +
		// etagSource);
	}
	return berg;
}
 

private ResponseBuilder getBuilder(String jsonEntity, Date lastMod, boolean includeEtag, Request request) {
	String etagSource = DominoUtils.md5(jsonEntity);
	EntityTag etag = new EntityTag(etagSource);
	ResponseBuilder berg = null;
	if (request != null) {
		berg = request.evaluatePreconditions(etag);
	}
	if (berg == null) {
		// System.out.println("TEMP DEBUG creating a new builder");
		berg = Response.ok();
		if (includeEtag) {
			berg.tag(etag);
		}
		berg.type(MediaType.APPLICATION_JSON_TYPE);
		berg.entity(jsonEntity);
		if (lastMod != null) {
			berg.lastModified(lastMod);
		}
		CacheControl cc = new CacheControl();
		cc.setMustRevalidate(true);
		cc.setPrivate(true);
		cc.setMaxAge(86400);
		cc.setNoTransform(true);
		berg.cacheControl(cc);
	}
	return berg;
}
 

@GET
@Path("/favicon/{id}")
@UnitOfWork
@ApiOperation(value = "Fetch a feed's icon", notes = "Fetch a feed's icon")
@Timed
public Response getFeedFavicon(@ApiParam(hidden = true) @SecurityCheck User user,
		@ApiParam(value = "subscription id", required = true) @PathParam("id") Long id) {

	Preconditions.checkNotNull(id);
	FeedSubscription subscription = feedSubscriptionDAO.findById(user, id);
	if (subscription == null) {
		return Response.status(Status.NOT_FOUND).build();
	}
	Feed feed = subscription.getFeed();
	Favicon icon = feedService.fetchFavicon(feed);

	ResponseBuilder builder = Response.ok(icon.getIcon(), Optional.ofNullable(icon.getMediaType()).orElse("image/x-icon"));

	CacheControl cacheControl = new CacheControl();
	cacheControl.setMaxAge(2592000);
	cacheControl.setPrivate(false);
	builder.cacheControl(cacheControl);

	Calendar calendar = Calendar.getInstance();
	calendar.add(Calendar.MONTH, 1);
	builder.expires(calendar.getTime());
	builder.lastModified(CommaFeedApplication.STARTUP_TIME);

	return builder.build();
}