diff -r cc67fdc4fee9 -r b2fff4b7e8cd src/share/classes/com/sun/corba/se/impl/orbutil/ObjectUtility.java --- a/src/share/classes/com/sun/corba/se/impl/orbutil/ObjectUtility.java Fri Sep 24 16:38:05 2010 -0700 +++ b/src/share/classes/com/sun/corba/se/impl/orbutil/ObjectUtility.java Fri Sep 24 22:42:14 2010 -0700 @@ -1,5 +1,5 @@ /* - * Copyright (c) 2002, 2006, Oracle and/or its affiliates. All rights reserved. + * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it @@ -50,103 +50,8 @@ import java.math.BigDecimal ; public final class ObjectUtility { - private boolean useToString ; - private boolean isIndenting ; - private int initialLevel ; - private int increment ; - private ClassMap classToPrinter = new ClassMap() ; + private ObjectUtility() {} - private static ObjectUtility standard = new ObjectUtility( false, true, - 0, 4 ) ; - private static ObjectUtility compact = new ObjectUtility( true, false, - 0, 4 ) ; - - private ObjectUtility( boolean useToString, boolean isIndenting, - int initialLevel, int increment ) - { - this.useToString = useToString ; - this.isIndenting = isIndenting ; - this.initialLevel = initialLevel ; - this.increment = increment ; - classToPrinter.put( Properties.class, propertiesPrinter ) ; - classToPrinter.put( Collection.class, collectionPrinter ) ; - classToPrinter.put( Map.class, mapPrinter ) ; - } - - /** Construct an Utility instance with the desired objectToString - * behavior. - */ - public static ObjectUtility make( boolean useToString, boolean isIndenting, - int initialLevel, int increment ) - { - return new ObjectUtility( useToString, isIndenting, initialLevel, - increment ) ; - } - - /** Construct an Utility instance with the desired objectToString - * behavior. - */ - public static ObjectUtility make( boolean useToString, boolean isIndenting ) - { - return new ObjectUtility( useToString, isIndenting, 0, 4 ) ; - } - - /** Get the standard Utility object that supports objectToString with - * indented display and no use of toString() methods. - */ - public static ObjectUtility make() - { - return standard ; - } - - /** A convenience method that gives the default behavior: use indenting - * to display the object's structure and do not use built-in toString - * methods. - */ - public static String defaultObjectToString( java.lang.Object object ) - { - return standard.objectToString( object ) ; - } - - public static String compactObjectToString( java.lang.Object object ) - { - return compact.objectToString( object ) ; - } - - /** objectToString handles display of arbitrary objects. It correctly - * handles objects whose elements form an arbitrary graph. It uses - * reflection to display the contents of any kind of object. - * An object's toString() method may optionally be used, but the default - * is to ignore all toString() methods except for those defined for - * primitive types, primitive type wrappers, and strings. - */ - public String objectToString(java.lang.Object obj) - { - IdentityHashMap printed = new IdentityHashMap() ; - ObjectWriter result = ObjectWriter.make( isIndenting, initialLevel, - increment ) ; - objectToStringHelper( printed, result, obj ) ; - return result.toString() ; - } - - // Perform a deep structural equality comparison of the two objects. - // This handles all arrays, maps, and sets specially, otherwise - // it just calls the object's equals() method. - public static boolean equals( java.lang.Object obj1, java.lang.Object obj2 ) - { - // Set of pairs of objects that have been (or are being) considered for - // equality. Such pairs are presumed to be equals. If they are not, - // this will be detected eventually and the equals method will return - // false. - Set considered = new HashSet() ; - - // Map that gives the corresponding component of obj2 for a component - // of obj1. This is used to check for the same aliasing and use of - // equal objects in both objects. - Map counterpart = new IdentityHashMap() ; - - return equalsHelper( counterpart, considered, obj1, obj2 ) ; - } /** If arr1 and arr2 are both arrays of the same component type, * return an array of that component type that consists of the @@ -179,544 +84,4 @@ return result ; } -//=========================================================================== -// Implementation -//=========================================================================== - - private void objectToStringHelper( IdentityHashMap printed, - ObjectWriter result, java.lang.Object obj) - { - if (obj==null) { - result.append( "null" ) ; - result.endElement() ; - } else { - Class cls = obj.getClass() ; - result.startObject( obj ) ; - - if (printed.keySet().contains( obj )) { - result.endObject( "*VISITED*" ) ; - } else { - printed.put( obj, null ) ; - - if (mustUseToString(cls)) { - result.endObject( obj.toString() ) ; - } else { - // First, handle any classes that have special printer - // methods defined. This is useful when the class - // overrides toString with something that - // is not sufficiently detailed. - ObjectPrinter printer = (ObjectPrinter)(classToPrinter.get( - cls )) ; - if (printer != null) { - printer.print( printed, result, obj ) ; - result.endObject() ; - } else { - Class compClass = cls.getComponentType() ; - - if (compClass == null) - // handleObject always calls endObject - handleObject( printed, result, obj ) ; - else { - handleArray( printed, result, obj ) ; - result.endObject() ; - } - } - } - } - } - } - - private static interface ObjectPrinter { - void print( IdentityHashMap printed, ObjectWriter buff, - java.lang.Object obj ) ; - } - - private ObjectPrinter propertiesPrinter = new ObjectPrinter() { - public void print( IdentityHashMap printed, ObjectWriter buff, - java.lang.Object obj ) - { - if (!(obj instanceof Properties)) - throw new Error() ; - - Properties props = (Properties)obj ; - Enumeration keys = props.propertyNames() ; - while (keys.hasMoreElements()) { - String key = (String)(keys.nextElement()) ; - String value = props.getProperty( key ) ; - buff.startElement() ; - buff.append( key ) ; - buff.append( "=" ) ; - buff.append( value ) ; - buff.endElement() ; - } - } - } ; - - private ObjectPrinter collectionPrinter = new ObjectPrinter() { - public void print( IdentityHashMap printed, ObjectWriter buff, - java.lang.Object obj ) - { - if (!(obj instanceof Collection)) - throw new Error() ; - - Collection coll = (Collection)obj ; - Iterator iter = coll.iterator() ; - while (iter.hasNext()) { - java.lang.Object element = iter.next() ; - buff.startElement() ; - objectToStringHelper( printed, buff, element ) ; - buff.endElement() ; - } - } - } ; - - private ObjectPrinter mapPrinter = new ObjectPrinter() { - public void print( IdentityHashMap printed, ObjectWriter buff, - java.lang.Object obj ) - { - if (!(obj instanceof Map)) - throw new Error() ; - - Map map = (Map)obj ; - Iterator iter = map.entrySet().iterator() ; - while (iter.hasNext()) { - Entry entry = (Entry)(iter.next()) ; - buff.startElement() ; - objectToStringHelper( printed, buff, entry.getKey() ) ; - buff.append( "=>" ) ; - objectToStringHelper( printed, buff, entry.getValue() ) ; - buff.endElement() ; - } - } - } ; - - private static class ClassMap { - ArrayList data ; - - public ClassMap() - { - data = new ArrayList() ; - } - - /** Return the first element of the ClassMap that is assignable to cls. - * The order is determined by the order in which the put method was - * called. Returns null if there is no match. - */ - public java.lang.Object get( Class cls ) - { - Iterator iter = data.iterator() ; - while (iter.hasNext()) { - java.lang.Object[] arr = (java.lang.Object[])(iter.next()) ; - Class key = (Class)(arr[0]) ; - if (key.isAssignableFrom( cls )) - return arr[1] ; - } - - return null ; - } - - /** Add obj to the map with key cls. Note that order matters, - * as the first match is returned. - */ - public void put( Class cls, java.lang.Object obj ) - { - java.lang.Object[] pair = { cls, obj } ; - data.add( pair ) ; - } - } - - private boolean mustUseToString( Class cls ) - { - // These probably never occur - if (cls.isPrimitive()) - return true ; - - // We must use toString for all primitive wrappers, since - // otherwise the code recurses endlessly (access value field - // inside Integer, returns another Integer through reflection). - if ((cls == Integer.class) || - (cls == BigInteger.class) || - (cls == BigDecimal.class) || - (cls == String.class) || - (cls == StringBuffer.class) || - (cls == Long.class) || - (cls == Short.class) || - (cls == Byte.class) || - (cls == Character.class) || - (cls == Float.class) || - (cls == Double.class) || - (cls == Boolean.class)) - return true ; - - if (useToString) { - try { - cls.getDeclaredMethod( "toString", (Class[])null ) ; - return true ; - } catch (Exception exc) { - return false ; - } - } - - return false ; - } - - private void handleObject( IdentityHashMap printed, ObjectWriter result, - java.lang.Object obj ) - { - Class cls = obj.getClass() ; - - try { - Field[] fields; - SecurityManager security = System.getSecurityManager(); - if (security != null && !Modifier.isPublic(cls.getModifiers())) { - fields = new Field[0]; - } else { - fields = cls.getDeclaredFields(); - } - - for (int ctr=0; ctr