| /* |
| * Copyright (c) 1997, 2013, 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 |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package com.sun.tools.internal.xjc; |
| |
| import java.net.URL; |
| |
| import javax.xml.validation.Schema; |
| import javax.xml.validation.SchemaFactory; |
| import javax.xml.validation.ValidatorHandler; |
| |
| import com.sun.xml.internal.bind.v2.util.XmlFactory; |
| import javax.xml.XMLConstants; |
| import org.xml.sax.SAXException; |
| |
| import static com.sun.xml.internal.bind.v2.util.XmlFactory.allowExternalAccess; |
| |
| /** |
| * Wraps a JAXP {@link Schema} object and lazily instantiate it. |
| * |
| * This object is thread-safe. There should be only one instance of |
| * this for the whole VM. |
| * |
| * @author Kohsuke Kawaguchi |
| */ |
| public final class SchemaCache { |
| |
| private Schema schema; |
| |
| private final URL source; |
| |
| public SchemaCache(URL source) { |
| this.source = source; |
| } |
| |
| public ValidatorHandler newValidator() { |
| synchronized(this) { |
| if(schema==null) { |
| try { |
| // do not disable secure processing - these are well-known schemas |
| SchemaFactory sf = XmlFactory.createSchemaFactory(XMLConstants.W3C_XML_SCHEMA_NS_URI, false); |
| schema = allowExternalAccess(sf, "file", false).newSchema(source); |
| } catch (SAXException e) { |
| // we make sure that the schema is correct before we ship. |
| throw new AssertionError(e); |
| } |
| } |
| } |
| |
| ValidatorHandler handler = schema.newValidatorHandler(); |
| return handler; |
| } |
| |
| } |