- /*
- * @(#)ObjectWriter.java 1.5 03/12/19
- *
- * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
- * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
- */
-
- package com.sun.corba.se.impl.orbutil ;
-
- import java.util.Arrays ;
-
- public abstract class ObjectWriter {
- public static ObjectWriter make( boolean isIndenting,
- int initialLevel, int increment )
- {
- if (isIndenting)
- return new IndentingObjectWriter( initialLevel, increment ) ;
- else
- return new SimpleObjectWriter() ;
- }
-
- public abstract void startObject( Object obj ) ;
-
- public abstract void startElement() ;
-
- public abstract void endElement() ;
-
- public abstract void endObject( String str ) ;
-
- public abstract void endObject() ;
-
- public String toString() { return result.toString() ; }
-
- public void append( boolean arg ) { result.append( arg ) ; }
-
- public void append( char arg ) { result.append( arg ) ; }
-
- public void append( short arg ) { result.append( arg ) ; }
-
- public void append( int arg ) { result.append( arg ) ; }
-
- public void append( long arg ) { result.append( arg ) ; }
-
- public void append( float arg ) { result.append( arg ) ; }
-
- public void append( double arg ) { result.append( arg ) ; }
-
- public void append( String arg ) { result.append( arg ) ; }
-
- //=================================================================================================
- // Implementation
- //=================================================================================================
-
- protected StringBuffer result ;
-
- protected ObjectWriter()
- {
- result = new StringBuffer() ;
- }
-
- protected void appendObjectHeader( Object obj )
- {
- result.append( obj.getClass().getName() ) ;
- result.append( "<" ) ;
- result.append( System.identityHashCode( obj ) ) ;
- result.append( ">" ) ;
- Class compClass = obj.getClass().getComponentType() ;
-
- if (compClass != null) {
- result.append( "[" ) ;
- if (compClass == boolean.class) {
- boolean[] arr = (boolean[])obj ;
- result.append( arr.length ) ;
- result.append( "]" ) ;
- } else if (compClass == byte.class) {
- byte[] arr = (byte[])obj ;
- result.append( arr.length ) ;
- result.append( "]" ) ;
- } else if (compClass == short.class) {
- short[] arr = (short[])obj ;
- result.append( arr.length ) ;
- result.append( "]" ) ;
- } else if (compClass == int.class) {
- int[] arr = (int[])obj ;
- result.append( arr.length ) ;
- result.append( "]" ) ;
- } else if (compClass == long.class) {
- long[] arr = (long[])obj ;
- result.append( arr.length ) ;
- result.append( "]" ) ;
- } else if (compClass == char.class) {
- char[] arr = (char[])obj ;
- result.append( arr.length ) ;
- result.append( "]" ) ;
- } else if (compClass == float.class) {
- float[] arr = (float[])obj ;
- result.append( arr.length ) ;
- result.append( "]" ) ;
- } else if (compClass == double.class) {
- double[] arr = (double[])obj ;
- result.append( arr.length ) ;
- result.append( "]" ) ;
- } else { // array of object
- java.lang.Object[] arr = (java.lang.Object[])obj ;
- result.append( arr.length ) ;
- result.append( "]" ) ;
- }
- }
-
- result.append( "(" ) ;
- }
-
- /** Expected patterns:
- * startObject endObject( str )
- * header( elem )\n
- * startObject ( startElement append* endElement ) * endObject
- * header(\n
- * append*\n *
- * )\n
- */
- private static class IndentingObjectWriter extends ObjectWriter {
- private int level ;
- private int increment ;
-
- public IndentingObjectWriter( int initialLevel, int increment )
- {
- this.level = initialLevel ;
- this.increment = increment ;
- startLine() ;
- }
-
- private void startLine()
- {
- char[] fill = new char[ level * increment ] ;
- Arrays.fill( fill, ' ' ) ;
- result.append( fill ) ;
- }
-
- public void startObject( java.lang.Object obj )
- {
- appendObjectHeader( obj ) ;
- level++ ;
- }
-
- public void startElement()
- {
- result.append( "\n" ) ;
- startLine() ;
- }
-
- public void endElement()
- {
- }
-
- public void endObject( String str )
- {
- level-- ;
- result.append( str ) ;
- result.append( ")" ) ;
- }
-
- public void endObject( )
- {
- level-- ;
- result.append( "\n" ) ;
- startLine() ;
- result.append( ")" ) ;
- }
- }
-
- private static class SimpleObjectWriter extends ObjectWriter {
- public void startObject( java.lang.Object obj )
- {
- appendObjectHeader( obj ) ;
- result.append( " " ) ;
- }
-
- public void startElement()
- {
- result.append( " " ) ;
- }
-
- public void endObject( String str )
- {
- result.append( str ) ;
- result.append( ")" ) ;
- }
-
- public void endElement()
- {
- }
-
- public void endObject()
- {
- result.append( ")" ) ;
- }
- }
- }