Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
HHH-14096 Adapt the Hibernate Envers module to use its private copy o…
…f XMLHelper
- Loading branch information
Showing
4 changed files
with
90 additions
and
14 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
79 changes: 79 additions & 0 deletions
79
hibernate-envers/src/main/java/org/hibernate/envers/configuration/internal/XMLHelper.java
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,79 @@ | ||
| /* | ||
| * Hibernate, Relational Persistence for Idiomatic Java | ||
| * | ||
| * License: GNU Lesser General Public License (LGPL), version 2.1 or later. | ||
| * See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>. | ||
| */ | ||
| package org.hibernate.envers.configuration.internal; | ||
|
|
||
| import org.dom4j.DocumentFactory; | ||
| import org.dom4j.io.SAXReader; | ||
| import org.hibernate.internal.util.xml.ErrorLogger; | ||
| import org.xml.sax.EntityResolver; | ||
|
|
||
| import java.security.AccessController; | ||
| import java.security.PrivilegedAction; | ||
|
|
||
| /** | ||
| * Small helper class that lazily loads DOM and SAX reader and keep them for fast use afterwards. | ||
| * | ||
| * This was part of Hibernate ORM core, but moved into the testsuite helpers to not expose | ||
| * access to the dom4j types. It's also used by Hibernate Envers, so we will need two copies | ||
| * until Envers is able to remove its reliance on dom4j. | ||
| * The rest of Hibernate uses StAX now for XML processing. See {@link org.hibernate.boot.jaxb.internal.stax} | ||
| */ | ||
| public final class XMLHelper { | ||
| private final DocumentFactory documentFactory; | ||
|
|
||
| public XMLHelper() { | ||
| PrivilegedAction<DocumentFactory> action = new PrivilegedAction<DocumentFactory>() { | ||
| public DocumentFactory run() { | ||
| final ClassLoader originalTccl = Thread.currentThread().getContextClassLoader(); | ||
| try { | ||
| // We need to make sure we get DocumentFactory | ||
| // loaded from the same ClassLoader that loads | ||
| // Hibernate classes, to make sure we get the | ||
| // proper version of DocumentFactory, This class | ||
| // is "internal", and should only be used for XML | ||
| // files generated by Envers. | ||
|
|
||
| // Using the (Hibernate) ClassLoader that loads | ||
| // this Class will avoid collisions in the case | ||
| // that DocumentFactory can be loaded from, | ||
| // for example, the application ClassLoader. | ||
| Thread.currentThread().setContextClassLoader( this.getClass().getClassLoader() ); | ||
| return DocumentFactory.getInstance(); | ||
| } | ||
| finally { | ||
| Thread.currentThread().setContextClassLoader( originalTccl ); | ||
| } | ||
| } | ||
| }; | ||
|
|
||
| this.documentFactory = System.getSecurityManager() != null | ||
| ? AccessController.doPrivileged( action ) | ||
| : action.run(); | ||
| } | ||
|
|
||
| public DocumentFactory getDocumentFactory() { | ||
| return documentFactory; | ||
| } | ||
|
|
||
| public SAXReader createSAXReader(ErrorLogger errorLogger, EntityResolver entityResolver) { | ||
| SAXReader saxReader = new SAXReader(); | ||
| try { | ||
| saxReader.setFeature( "http://apache.org/xml/features/nonvalidating/load-external-dtd", false ); | ||
| saxReader.setFeature( "http://xml.org/sax/features/external-general-entities", false ); | ||
| saxReader.setFeature( "http://xml.org/sax/features/external-parameter-entities", false ); | ||
| } | ||
| catch (Exception e) { | ||
| throw new RuntimeException( e ); | ||
| } | ||
| saxReader.setMergeAdjacentText( true ); | ||
| saxReader.setValidation( true ); | ||
| saxReader.setErrorHandler( errorLogger ); | ||
| saxReader.setEntityResolver( entityResolver ); | ||
|
|
||
| return saxReader; | ||
| } | ||
| } |