checkpoint

[sbp.git] / src / edu / berkeley / sbp / util / Reflection.java

diff --git a/src/edu/berkeley/sbp/util/Reflection.java b/src/edu/berkeley/sbp/util/Reflection.java
index 42267ce..247652a 100644 (file)
--- a/src/edu/berkeley/sbp/util/Reflection.java
+++ b/src/edu/berkeley/sbp/util/Reflection.java
@@ -51,6 +51,31 @@ public final class Reflection {
         return (Object[])Array.newInstance(c, i);
     }
 
+    public static String show(Object o) {
+        if (o==null) return "null";
+        if (o instanceof Show) {
+            StringBuffer ret = new StringBuffer();
+            for(Field f : o.getClass().getFields()) {
+                ret.append("\n" + f.getName() + " = ");
+                try {
+                    ret.append(show(f.get(o)));
+                } catch (Exception e) {
+                    ret.append("**"+e+"**");
+                    throw new RuntimeException(e);
+                }
+            }
+            return o.getClass().getName() + " {" + StringUtil.indent(ret.toString(), 4) + "\n}";
+        }
+        if (! (o instanceof Object[])) return o.toString() + " : " + o.getClass().getName();
+        Object[] arr = (Object[])o;
+        StringBuffer ret = new StringBuffer();
+        ret.append(o.getClass().getComponentType().getName());
+        ret.append("["+arr.length+"]:");
+        for(int i=0; i<arr.length; i++)
+            ret.append(StringUtil.indent("\n"+show(arr[i]), 4));
+        return ret.toString();
+    }
+
     public static Object lub(Object argo) {
         if (argo instanceof Object[]) return lub((Object[])argo);
         return argo;
@@ -172,4 +197,5 @@ public final class Reflection {
         return null;
     }
 
+    public static interface Show { }
 }