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This module contains the Metro runtime code.
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2002-2010 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
package org.glassfish.gmbal.generic ;
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( String str ) ;
public abstract void startObject( Object obj ) ;
public abstract void startElement() ;
public abstract void endElement() ;
public abstract void endObject() ;
@Override
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 ) ; }
public void append( Object arg ) { result.append( arg.toString() ) ; }
//=================================================================================================
// 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( String str ) {
append( str ) ;
append( "(" ) ;
level++ ;
}
public void startObject( java.lang.Object obj )
{
appendObjectHeader( obj ) ;
level++ ;
}
public void startElement()
{
result.append( "\n" ) ;
startLine() ;
}
public void endElement()
{
}
public void endObject( )
{
level-- ;
result.append( ")" ) ;
result.append( "\n" ) ;
startLine() ;
}
}
private static class SimpleObjectWriter extends ObjectWriter {
public void startObject( String str ) {
append( str ) ;
append( "(" ) ;
}
public void startObject( java.lang.Object obj )
{
appendObjectHeader( obj ) ;
result.append( " " ) ;
}
public void startElement()
{
result.append( " " ) ;
}
public void endElement()
{
}
public void endObject()
{
result.append( ")" ) ;
}
}
}