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;
          }
      }
  
  }