001/* 002 * The contents of this file are subject to the terms of the Common Development and 003 * Distribution License (the License). You may not use this file except in compliance with the License. 004 * 005 * You can obtain a copy of the License at legal/CDDLv1.0.txt. See the License for the 006 * specific language governing permission and limitations under the License. 007 * 008 * When distributing Covered Software, include this CDDL Header Notice in each file and include 009 * the License file at legal/CDDLv1.0.txt. If applicable, add the following below the CDDL 010 * Header, with the fields enclosed by brackets [] replaced by your own identifying 011 * information: "Portions copyright [year] [name of copyright owner]". 012 * 013 * Copyright 2015 ForgeRock AS. 014 */ 015 016package org.forgerock.util.xml; 017 018import java.io.InputStream; 019import java.io.StringReader; 020 021import org.xml.sax.InputSource; 022import org.xml.sax.helpers.DefaultHandler; 023 024/** 025 * This is a custom XML handler to load the dtds from the classpath This should 026 * be used by all the xml parsing document builders to set the default entity 027 * resolvers. This will avoid to have the dtds having specified in a fixed 028 * directory that will get replaced during installation This will need to 029 * specify the dtds as follows jar://com/sun/identity/sm/sms.dtd Bundle all the 030 * dtds along with the jar files and 031 */ 032public class XMLHandler extends DefaultHandler { 033 034 /* FIXME: does this class need to be non-final and public? */ 035 036 /** 037 * Creates a new XML handler. 038 */ 039 public XMLHandler() { 040 // No impl. 041 } 042 043 @Override 044 public InputSource resolveEntity(final String aPublicID, final String aSystemID) { 045 final String sysid = aSystemID.trim(); 046 047 if (sysid.toLowerCase().startsWith("jar://")) { 048 final String dtdname = sysid.substring(5); 049 final InputStream is = getClass().getResourceAsStream(dtdname); 050 if (is != null) { 051 return new InputSource(is); 052 } 053 } 054 055 /* 056 * make sure that we do NOT return null here, as xerces would fall back 057 * to the default entity resolver and try to resolve the entity with 058 * that 059 */ 060 return new InputSource(new StringReader("")); 061 } 062}