src/org/ohmage/request/visualization/VisualizationRequest.java
@Override
	public void service() {
		LOGGER.info("Servicing a visualization request.");
		
		try {
			LOGGER.info("Verifying that the campaign exists.");
			CampaignServices.instance().checkCampaignExistence(campaignId, true);
		}
		catch(ServiceException e) {
			e.failRequest(this);
			e.logException(LOGGER);
		}
	}
/**
	 * Checks that the campaign ID in the request belongs to an existing 
	 * campaign<br />
	 * <br />
	 * Note: This does not perform any user authentication.
	 */
Checks that the campaign ID in the request belongs to an existing
campaign

Note: This does not perform any user authentication.
Checks that the campaign ID in the request belongs to an existing campaign Note : This does not perform any user authentication .
@Override
	public void service() {
		LOGGER.info("Servicing a visualization request.");
		try {
			LOGGER.info("Verifying that the campaign exists.");
			CampaignServices.instance().checkCampaignExistence(campaignId, true);
		}
		catch(ServiceException e) {
			e.failRequest(this);
			e.logException(LOGGER);
		}
	}
@ Override public void service ( ) { LOGGER . info ( "Servicing a visualization request." ) ; try { LOGGER . info ( "Verifying that the campaign exists." ) ; CampaignServices . instance ( ) . checkCampaignExistence ( campaignId , true ) ; } catch ( ServiceException e ) { e . failRequest ( this ) ; e . logException ( LOGGER ) ; } }
Checks that the campaign ID in the request belongs to an existing
 campaign<br />
 <br />
 Note: This does not perform any user authentication.
Checks that the campaign ID in the request belongs to an existing campaign<br / > <br / > Note : This does not perform any user authentication .