Many resources are needed to download a project. Please understand that we have to compensate our server costs. Thank you in advance. Project price only 1 $
You can buy this project and download/modify it how often you want.
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can obtain
* a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
* or glassfish/bootstrap/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
* Sun designates this particular file as subject to the "Classpath" exception
* as provided by Sun in the GPL Version 2 section of the License file that
* accompanied this code. If applicable, add the following below the License
* Header, with the fields enclosed by brackets [] replaced by your own
* identifying information: "Portions Copyrighted [year]
* [name of copyright owner]"
*
* Contributor(s):
*
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
package org.glassfish.web.osgi;
import java.io.BufferedInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.util.Enumeration;
/**
* This class loader only provides a new class loading namespace
* It is useful during annotation scanning classes get loaded in that separate
* namespace. This class loader delegates all stream handling (i.e. reading
* actual class/resource data) operations to a delegate Bundle.
* It only defines the Class using the byte codes.
*
* @author [email protected]
*/
public class TempBundleClassLoader extends ClassLoader
{
private BundleClassLoader delegate;
public TempBundleClassLoader(BundleClassLoader delegate)
{
// Set our parent same as delegate's
super(delegate.getParent());
this.delegate = delegate;
}
/**
* This method uses the delegate to use class bytes and then defines
* the class using this class loader
*/
protected Class findClass(String name) throws ClassNotFoundException
{
String entryName = name.replace('.', '/') + ".class";
URL url = delegate.getResource(entryName);
if (url == null)
{
throw new ClassNotFoundException(name);
}
InputStream inputStream = null;
byte[] bytes = null;
try
{
inputStream = url.openStream();
bytes = getClassData(inputStream);
}
catch (IOException e)
{
throw new ClassNotFoundException(name, e);
}
finally
{
try
{
if (inputStream != null)
{
inputStream.close();
}
}
catch (IOException e)
{
// ignore
}
}
// Define package information if necessary
int lastPackageSep = name.lastIndexOf('.');
if (lastPackageSep != -1)
{
String packageName = name.substring(0, lastPackageSep);
if (getPackage(packageName) == null)
{
try
{
// There's a small chance that one of our parents
// could define the same package after getPackage
// returns null but before we call definePackage,
// since the parent classloader instances
// are not locked. So, just catch the exception
// that is thrown in that case and ignore it.
//
// It's unclear where we would get the info to
// set all spec and impl data for the package,
// so just use null. This is consistent will the
// JDK code that does the same.
definePackage(packageName, null, null, null,
null, null, null, null);
}
catch (IllegalArgumentException iae)
{
// duplicate attempt to define same package.
// safe to ignore.
}
}
}
Class clazz = null;
try
{
clazz = defineClass(name, bytes, 0, bytes.length, null); // TODO(Sahoo): Set appropriate protection domain
return clazz;
}
catch (UnsupportedClassVersionError ucve)
{
throw new UnsupportedClassVersionError(name + " can't be defined as we are running in Java version" +
System.getProperty("java.version"));
}
}
public URL getResource(String name)
{
return delegate.getResource(name);
}
public Enumeration findResources(String name) throws IOException
{
return delegate.getResources(name);
}
/**
* Returns the byte array from the given input stream.
*
* @param istream input stream to the class or resource
* @throws IOException if an i/o error
*/
private byte[] getClassData(InputStream istream) throws IOException
{
BufferedInputStream bstream = new BufferedInputStream(istream);
byte[] buf = new byte[4096];
ByteArrayOutputStream bout = new ByteArrayOutputStream();
int num = 0;
try
{
while ((num = bstream.read(buf)) != -1)
{
bout.write(buf, 0, num);
}
}
finally
{
if (bstream != null)
{
bstream.close();
}
}
return bout.toByteArray();
}
}
