util.java

SHARK工作流引擎的启动测试

package utils;

import java.util.Properties;
import java.lang.reflect.Field;

/**
 * @author rross
 */
public class Util
{
   /**
	 * Adds a slash '/' to the end of a string if none exists
    *
    * NOTE: This will trim trailing and leading space as well.
    *
	 * @param path
	 * @return The same string with a slash '/' appended if there was none as the last character.  Can return
	 * null if null was passed in.
	 */
	public static String forceSlash(String path)
	{
		if (path != null && !path.trim().endsWith("/"))
			return path.trim() + "/";
		else
			return path;
	}

   /**
    * Updates a Properties object by prepending path to the value in the given key and putting the
    * new value back in under the key.
    * 
    * @param props
    * @param key
    * @param path
    */

   public static void prependPath(Properties props, String key, String path)
   {
      props.setProperty(key, forceSlash(path) + props.getProperty(key));
   }

   /**
    * Examines an object and creates a string representation of it's fields
    * @param ob Any object
    * @return  a String reasonably formatted
    */
   public static String toString(Object ob)
   {
          if (ob == null)
          {
              return "Object is null";
          }

          StringBuffer sb = new StringBuffer(ob.getClass().getName() + "\n");

          try
          {
              Field[] fa = ob.getClass().getDeclaredFields();
              for (int i = 0; i < fa.length; i++)
              {
                  Field f = fa[i];

                  // Here's the majick.  Override the default accessibility
                  // of the object
                  // This could be blocked by classes that are paranoid
                  // so don't panic if the toString fails to get values
                  // for every object.
                  f.setAccessible(true);

                  Object fob = fa[i].get(ob);

                  sb.append("   " + f.getName() + " : " + fob + "\n");

                  if (fob instanceof Object[])
                  {
                      Object[] oba = (Object[]) fob;
                      for (int j = 0; j < oba.length; j++)
                      {
                          sb.append("      " + oba[j] + "\n");
                      }
                  }
              }
          }
          catch (IllegalAccessException e)
          {
              e.printStackTrace();
          }
          return sb.toString();
      }

}