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;

         }

     }

 }