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Glassfish example source code file (SmartStringifier.java)
The Glassfish SmartStringifier.java source code/* * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. * * Copyright (c) 1997-2010 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 packager/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.admin.amx.util.stringifier; import org.glassfish.admin.amx.util.ArrayConversion; import org.glassfish.admin.amx.util.ClassUtil; import java.util.Collection; import java.util.HashMap; import java.util.Iterator; /** Stringifies an Object in the "best" possible way, using the StringifierRegistry.DEFAULT registry and/or internal logic. */ public final class SmartStringifier implements Stringifier { public static final SmartStringifier DEFAULT = new SmartStringifier( "," ); private final String mMultiDelim; private final boolean mEncloseArrays; protected StringifierRegistry mRegistry; public SmartStringifier() { this( "," ); } public SmartStringifier( String multiDelim ) { this ( multiDelim, true ); } public SmartStringifier( String multiDelim, boolean encloseArrays ) { this ( StringifierRegistryImpl.DEFAULT, multiDelim, encloseArrays ); } public SmartStringifier( StringifierRegistry registry, String multiDelim, boolean encloseArrays) { mMultiDelim = multiDelim; mEncloseArrays = encloseArrays; mRegistry = registry; } public void setRegistry( StringifierRegistry registry ) { mRegistry = registry; } private final static Class [] STRINGIFIER_REGISTRY_LOOKUPS = { Iterator.class, Collection.class, HashMap.class }; private Stringifier getStringifier( final Object target ) { if ( target == null ) return( null ); final Class<?> targetClass = target.getClass(); Stringifier stringifier = mRegistry.lookup( targetClass ); if ( target instanceof javax.management.ObjectName ) { assert( stringifier != null ); } if ( stringifier == null ) { // exact match failed...look for match in defined order final int numLookups = STRINGIFIER_REGISTRY_LOOKUPS.length; for( int i = 0; i < numLookups; ++i ) { final Class<?> theClass = STRINGIFIER_REGISTRY_LOOKUPS[ i ]; stringifier = mRegistry.lookup( theClass ); if ( stringifier != null && theClass.isAssignableFrom( target.getClass() ) ) { break; } } } if ( stringifier == null ) { // see if there is a Stringifier for any superclass; Class tempClass = targetClass; while ( tempClass != Object.class ) { stringifier = mRegistry.lookup( tempClass ); if ( stringifier != null ) { break; } tempClass = tempClass.getSuperclass(); } } if ( stringifier == null ) { final Class[] interfaces = targetClass.getInterfaces(); if ( interfaces.length != 0 ) { stringifier = new InterfacesStringifier( interfaces ); } } return( stringifier ); } private String smartStringify( Object target ) { String result = null; if ( ClassUtil.objectIsArray( target ) ) { Object [] theArray = null; final Class elementClass = ClassUtil.getArrayElementClass( target.getClass() ); if ( ClassUtil.IsPrimitiveClass( elementClass ) ) { theArray = ArrayConversion.toAppropriateType( target ); } else { theArray = (Object [])target; } result = ArrayStringifier.stringify( theArray, mMultiDelim, this); if ( mEncloseArrays ) { result = "{" + result + "}"; } } else { Stringifier stringifier = getStringifier( target ); if ( stringifier != null && stringifier.getClass() == this.getClass() ) { // avoid recursive call to self stringifier = null; } if ( stringifier != null ) { result = stringifier.stringify( target ); } } if ( result == null ) { result = target.toString(); } return( result ); } public static String toString( Object target ) { return( DEFAULT.stringify( target ) ); } public String stringify( Object target ) { if ( target == null ) { return( "<null>" ); } return( smartStringify( target ) ); } } Other Glassfish examples (source code examples)Here is a short list of links related to this Glassfish SmartStringifier.java source code file: |
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