jaxp/src/java.xml/share/classes/org/xml/sax/helpers/NewInstance.java
changeset 25868 686eef1e7a79
parent 22139 f4b2aa462b46
child 37927 fe4019feb049
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jaxp/src/java.xml/share/classes/org/xml/sax/helpers/NewInstance.java	Sun Aug 17 15:51:56 2014 +0100
@@ -0,0 +1,87 @@
+/*
+ * Copyright (c) 2001, 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.
+ */
+
+// NewInstance.java - create a new instance of a class by name.
+// http://www.saxproject.org
+// Written by Edwin Goei, edwingo@apache.org
+// and by David Brownell, dbrownell@users.sourceforge.net
+// NO WARRANTY!  This class is in the Public Domain.
+// $Id: NewInstance.java,v 1.2 2005/06/10 03:50:50 jeffsuttor Exp $
+
+package org.xml.sax.helpers;
+
+import java.lang.reflect.Method;
+import java.lang.reflect.InvocationTargetException;
+
+/**
+ * Create a new instance of a class by name.
+ *
+ * <blockquote>
+ * <em>This module, both source code and documentation, is in the
+ * Public Domain, and comes with <strong>NO WARRANTY</strong>.</em>
+ * See <a href='http://www.saxproject.org'>http://www.saxproject.org</a>
+ * for further information.
+ * </blockquote>
+ *
+ * <p>This class contains a static method for creating an instance of a
+ * class from an explicit class name.  It tries to use the thread's context
+ * ClassLoader if possible and falls back to using
+ * Class.forName(String).</p>
+ *
+ * <p>This code is designed to compile and run on JDK version 1.1 and later
+ * including versions of Java 2.</p>
+ *
+ * @author Edwin Goei, David Brownell
+ * @version 2.0.1 (sax2r2)
+ */
+class NewInstance {
+    private static final String DEFAULT_PACKAGE = "com.sun.org.apache.xerces.internal";
+    /**
+     * Creates a new instance of the specified class name
+     *
+     * Package private so this code is not exposed at the API level.
+     */
+    static Object newInstance (ClassLoader classLoader, String className)
+        throws ClassNotFoundException, IllegalAccessException,
+            InstantiationException
+    {
+        // make sure we have access to restricted packages
+        boolean internal = false;
+        if (System.getSecurityManager() != null) {
+            if (className != null && className.startsWith(DEFAULT_PACKAGE)) {
+                internal = true;
+            }
+        }
+
+        Class driverClass;
+        if (classLoader == null || internal) {
+            driverClass = Class.forName(className);
+        } else {
+            driverClass = classLoader.loadClass(className);
+        }
+        return driverClass.newInstance();
+    }
+
+}