com.brsanthu.googleanalytics.DefaultRequestParameterDiscoverer Maven / Gradle / Ivy

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This is Java API for Google Analytics (Measurement Protocol). More information about the protocol is available at https://developers.google.com/analytics/devguides/collection/protocol/v1/.

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package com.brsanthu.googleanalytics;

import static com.brsanthu.googleanalytics.GaUtils.appendSystemProperty;
import static com.brsanthu.googleanalytics.GaUtils.isEmpty;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/** 
 * Default request parameter discoverer. Discovers following parameters.
 * 
 * 	Creates User Agent as java/1.6.0_45-b06/Sun Microsystems Inc./Java HotSpot(TM) 64-Bit Server VM/Windows 7/6.1/amd64
 *  User Language, and Country
 *  File Encoding
 * 
 * 
 * @author Santhosh Kumar
 */
public class DefaultRequestParameterDiscoverer implements RequestParameterDiscoverer {
	
	private static final Logger logger = LoggerFactory.getLogger(DefaultRequestParameterDiscoverer.class);
	
	@Override
	public DefaultRequest discoverParameters(GoogleAnalyticsConfig config, DefaultRequest request) {
		try {
			if (isEmpty(config.getUserAgent())) {
				config.setUserAgent(getUserAgentString());
			}

			if (isEmpty(request.userLanguage())) {
			    String region = System.getProperty("user.region");
			    if (isEmpty(region)) {
			        region = System.getProperty("user.country");
			    }
			    request.userLanguage(System.getProperty("user.language") + "-" + region);
			}

			if (isEmpty(request.documentEncoding())) {
				request.documentEncoding(System.getProperty("file.encoding"));
			}

		} catch (Exception e) {
			logger.warn("Exception while deriving the System properties for request " + request, e);
		}
		
		return request;
	}
	
	protected String getUserAgentString() {
		StringBuilder sb = new StringBuilder("java");
		appendSystemProperty(sb, "java.runtime.version");
		appendSystemProperty(sb, "java.specification.vendor");
		appendSystemProperty(sb, "java.vm.name");
		appendSystemProperty(sb, "os.name");
		appendSystemProperty(sb, "os.version");
		appendSystemProperty(sb, "os.arch");

		return sb.toString();
	}
	
}