package org.kuali.spring.util;

 import java.util.HashMap;

 import java.util.Map;

 import java.util.Properties;

 import org.slf4j.Logger;

 import org.slf4j.LoggerFactory;

 public class SystemUtils {

         final static Logger logger = LoggerFactory.getLogger(SystemUtils.class);

         public static Map<String, String> getEnvironmentIgnoreExceptions() {

                 try {

                         return System.getenv();

                 } catch (Throwable e) {

                         logger.warn("Unable to access environment.  {}", e.getMessage());

                         return new HashMap<String, String>();

                 }

         }

         public static Properties getSystemPropertiesIgnoreExceptions() {

                 try {

                         return System.getProperties();

                 } catch (Throwable e) {

                         logger.warn("Unable to access system properties.  {}", e.getMessage());

                         return new Properties();

                 }

         }

         public static final String getSystemPropertyIgnoreExceptions(String key) {

                 try {

                         return System.getProperty(key);

                 } catch (Throwable e) {

                         logger.warn("Unable to access system property '{}': {}", key, e.getMessage());

                         return null;

                 }

         }

         public static final String getEnvironmentPropertyIgnoreExceptions(String key) {

                 try {

                         return System.getenv(key);

                 } catch (Throwable e) {

                         logger.warn("Unable to access environment property '{}': {}", key, e.getMessage());

                         return null;

                 }

         }

 }