svn commit: r709697 - /servicemix/smx4/specs/trunk/jaxp-api-1.4/src/main/java/org/xml/sax/helpers/SecuritySupport.java

[gn...@apache.org]

Author: gnodet
Date: Sat Nov  1 07:11:49 2008
New Revision: 709697

URL: http://svn.apache.org/viewvc?rev=709697&view=rev
Log:
Add JAXP 1.4 API

Added:
    servicemix/smx4/specs/trunk/jaxp-api-1.4/src/main/java/org/xml/sax/helpers/SecuritySupport.java

Added: servicemix/smx4/specs/trunk/jaxp-api-1.4/src/main/java/org/xml/sax/helpers/SecuritySupport.java
URL: http://svn.apache.org/viewvc/servicemix/smx4/specs/trunk/jaxp-api-1.4/src/main/java/org/xml/sax/helpers/SecuritySupport.java?rev=709697&view=auto
==============================================================================
--- servicemix/smx4/specs/trunk/jaxp-api-1.4/src/main/java/org/xml/sax/helpers/SecuritySupport.java (added)
+++ servicemix/smx4/specs/trunk/jaxp-api-1.4/src/main/java/org/xml/sax/helpers/SecuritySupport.java Sat Nov  1 07:11:49 2008
@@ -0,0 +1,93 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.xml.sax.helpers;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.InputStream;
+import java.security.AccessController;
+import java.security.PrivilegedAction;
+import java.security.PrivilegedActionException;
+import java.security.PrivilegedExceptionAction;
+
+/**
+ * This class is duplicated for each JAXP subpackage so keep it in sync.
+ * It is package private and therefore is not exposed as part of the JAXP
+ * API.
+ *
+ * Security related methods that only work on J2SE 1.2 and newer.
+ */
+final class SecuritySupport {
+    
+    private SecuritySupport() {}
+
+    static ClassLoader getContextClassLoader() {
+	return (ClassLoader)
+		AccessController.doPrivileged(new PrivilegedAction() {
+	    public Object run() {
+		ClassLoader cl = null;
+		try {
+		    cl = Thread.currentThread().getContextClassLoader();
+		} catch (SecurityException ex) { }
+		return cl;
+	    }
+	});
+    }
+
+    static String getSystemProperty(final String propName) {
+	return (String)
+            AccessController.doPrivileged(new PrivilegedAction() {
+                public Object run() {
+                    return System.getProperty(propName);
+                }
+            });
+    }
+
+    static FileInputStream getFileInputStream(final File file)
+        throws FileNotFoundException
+    {
+	try {
+            return (FileInputStream)
+                AccessController.doPrivileged(new PrivilegedExceptionAction() {
+                    public Object run() throws FileNotFoundException {
+                        return new FileInputStream(file);
+                    }
+                });
+	} catch (PrivilegedActionException e) {
+	    throw (FileNotFoundException)e.getException();
+	}
+    }
+
+    static InputStream getResourceAsStream(final ClassLoader cl,
+                                           final String name)
+    {
+        return (InputStream)
+            AccessController.doPrivileged(new PrivilegedAction() {
+                public Object run() {
+                    InputStream ris;
+                    if (cl == null) {
+                        ris = ClassLoader.getSystemResourceAsStream(name);
+                    } else {
+                        ris = cl.getResourceAsStream(name);
+                    }
+                    return ris;
+                }
+            });
+    }
+}