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Posted to commits@sling.apache.org by ro...@apache.org on 2017/11/07 09:46:18 UTC

[sling-org-apache-sling-jcr-classloader] 20/21: Move Sling to new TLP location

This is an automated email from the ASF dual-hosted git repository.

rombert pushed a commit to annotated tag org.apache.sling.jcr.classloader-2.0.4-incubator
in repository https://gitbox.apache.org/repos/asf/sling-org-apache-sling-jcr-classloader.git

commit 8dc7e7bce3ea9623c818e3fbf3905cf707232ff4
Author: Felix Meschberger <fm...@apache.org>
AuthorDate: Thu Jun 18 09:21:02 2009 +0000

    Move Sling to new TLP location
    
    git-svn-id: https://svn.eu.apache.org/repos/asf/sling/tags/org.apache.sling.jcr.classloader-2.0.4-incubator@785979 13f79535-47bb-0310-9956-ffa450edef68
---
 LICENSE                                            | 202 +++++++++++++++++++++
 NOTICE                                             |   8 +
 README.txt                                         |  39 ++++
 pom.xml                                            | 130 +++++++++++++
 .../classloader/RepositoryClassLoaderProvider.java |  31 ++++
 .../internal/BundleProxyClassLoader.java           |  75 ++++++++
 .../internal/RepositoryClassLoaderFacade.java      | 200 ++++++++++++++++++++
 .../RepositoryClassLoaderProviderImpl.java         | 156 ++++++++++++++++
 src/main/resources/META-INF/DISCLAIMER             |   7 +
 src/main/resources/META-INF/LICENSE                | 202 +++++++++++++++++++++
 src/main/resources/META-INF/NOTICE                 |   8 +
 .../OSGI-INF/metatype/metatype.properties          |  44 +++++
 12 files changed, 1102 insertions(+)

diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..d645695
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,202 @@
+
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diff --git a/NOTICE b/NOTICE
new file mode 100644
index 0000000..20f482a
--- /dev/null
+++ b/NOTICE
@@ -0,0 +1,8 @@
+Apache Sling JCR Classloader
+Copyright 2008-2009 The Apache Software Foundation
+
+Apache Sling is based on source code originally developed 
+by Day Software (http://www.day.com/).
+
+This product includes software developed at
+The Apache Software Foundation (http://www.apache.org/).
diff --git a/README.txt b/README.txt
new file mode 100644
index 0000000..68c85a7
--- /dev/null
+++ b/README.txt
@@ -0,0 +1,39 @@
+Apache Sling JCR Classloader
+
+Provides Support for delegate class loaders built dynamically.
+Delegate class loaders supported are generic ClassLoader, OSGi
+bundles and repository class loader.
+
+Disclaimer
+==========
+Apache Sling is an effort undergoing incubation at The Apache Software Foundation (ASF),
+sponsored by the Apache Jackrabbit PMC. Incubation is required of all newly accepted
+projects until a further review indicates that the infrastructure, communications,
+and decision making process have stabilized in a manner consistent with other
+successful ASF projects. While incubation status is not necessarily a reflection of
+the completeness or stability of the code, it does indicate that the project has yet
+to be fully endorsed by the ASF.
+
+Getting Started
+===============
+
+This component uses a Maven 2 (http://maven.apache.org/) build
+environment. It requires a Java 5 JDK (or higher) and Maven (http://maven.apache.org/)
+2.0.7 or later. We recommend to use the latest Maven version.
+
+If you have Maven 2 installed, you can compile and
+package the jar using the following command:
+
+    mvn package
+
+See the Maven 2 documentation for other build features.
+
+The latest source code for this component is available in the
+Subversion (http://subversion.tigris.org/) source repository of
+the Apache Software Foundation. If you have Subversion installed,
+you can checkout the latest source using the following command:
+
+    svn checkout http://svn.apache.org/repos/asf/incubator/sling/trunk/jcr/classloader
+
+See the Subversion documentation for other source control features.
+
diff --git a/pom.xml b/pom.xml
new file mode 100644
index 0000000..c444fc3
--- /dev/null
+++ b/pom.xml
@@ -0,0 +1,130 @@
+<?xml version="1.0" encoding="ISO-8859-1"?>
+<!--
+    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.
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>org.apache.sling</groupId>
+        <artifactId>sling</artifactId>
+        <version>5-incubator</version>
+        <relativePath>../../../parent/pom.xml</relativePath>
+    </parent>
+
+    <artifactId>org.apache.sling.jcr.classloader</artifactId>
+    <version>2.0.4-incubator</version>
+    <packaging>bundle</packaging>
+
+    <name>Apache Sling Repository ClassLoader</name>
+    <description>
+        Provides Support for delegate class loaders built dynamically.
+        Delegate class loaders supported are generic ClassLoader, OSGi
+        bundles and repository class loader.
+    </description>
+
+    <scm>
+        <connection>scm:svn:http://svn.apache.org/repos/asf/incubator/sling/tags/org.apache.sling.jcr.classloader-2.0.4-incubator</connection>
+        <developerConnection>scm:svn:https://svn.apache.org/repos/asf/incubator/sling/tags/org.apache.sling.jcr.classloader-2.0.4-incubator</developerConnection>
+        <url>http://svn.apache.org/viewvc/incubator/sling/tags/org.apache.sling.jcr.classloader-2.0.4-incubator</url>
+    </scm>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.felix</groupId>
+                <artifactId>maven-scr-plugin</artifactId>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.felix</groupId>
+                <artifactId>maven-bundle-plugin</artifactId>
+                <extensions>true</extensions>
+                <configuration>
+                    <instructions>
+                        <Bundle-Category>
+                            sling,jcr,jackrabbit
+                        </Bundle-Category>
+                        <Export-Package>
+                            org.apache.sling.jcr.classloader;version=${pom.version},
+                            org.apache.jackrabbit.classloader;
+                            org.apache.jackrabbit.net;version=1.4
+                        </Export-Package>
+                        <Private-Package>
+                            org.apache.sling.jcr.classloader.internal.*,
+                            org.apache.jackrabbit;
+                            org.apache.jackrabbit.name;
+                            org.apache.jackrabbit.util;split-package:=merge-first
+                        </Private-Package>
+                    </instructions>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+    <reporting>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-javadoc-plugin</artifactId>
+                <configuration>
+                    <excludePackageNames>
+                        org.apache.sling.jcr.classloader.internal
+                    </excludePackageNames>
+                </configuration>
+            </plugin>
+        </plugins>
+    </reporting>
+    <dependencies>
+        <dependency>
+            <groupId>org.apache.sling</groupId>
+            <artifactId>org.apache.sling.jcr.api</artifactId>
+            <version>2.0.2-incubator</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.jackrabbit</groupId>
+            <artifactId>jackrabbit-classloader</artifactId>
+            <version>1.4.1</version>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.jackrabbit</groupId>
+            <artifactId>jackrabbit-jcr-commons</artifactId>
+            <version>1.4.2</version>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-api</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>commons-collections</groupId>
+            <artifactId>commons-collections</artifactId>
+            <version>3.2.1</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.felix</groupId>
+            <artifactId>org.osgi.core</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.felix</groupId>
+            <artifactId>org.osgi.compendium</artifactId>
+        </dependency>
+    </dependencies>
+</project>
diff --git a/src/main/java/org/apache/sling/jcr/classloader/RepositoryClassLoaderProvider.java b/src/main/java/org/apache/sling/jcr/classloader/RepositoryClassLoaderProvider.java
new file mode 100644
index 0000000..eb41324
--- /dev/null
+++ b/src/main/java/org/apache/sling/jcr/classloader/RepositoryClassLoaderProvider.java
@@ -0,0 +1,31 @@
+/*
+ * 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.apache.sling.jcr.classloader;
+
+import javax.jcr.RepositoryException;
+
+/**
+ * The <code>RepositoryClassLoaderProvider</code> TODO
+ */
+public interface RepositoryClassLoaderProvider {
+
+    ClassLoader getClassLoader(String owner) throws RepositoryException;
+    void ungetClassLoader(ClassLoader classLoader);
+
+}
diff --git a/src/main/java/org/apache/sling/jcr/classloader/internal/BundleProxyClassLoader.java b/src/main/java/org/apache/sling/jcr/classloader/internal/BundleProxyClassLoader.java
new file mode 100644
index 0000000..8275a5a
--- /dev/null
+++ b/src/main/java/org/apache/sling/jcr/classloader/internal/BundleProxyClassLoader.java
@@ -0,0 +1,75 @@
+/*
+ * 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.apache.sling.jcr.classloader.internal;
+
+import java.io.IOException;
+import java.net.URL;
+import java.util.Enumeration;
+
+import org.osgi.framework.Bundle;
+
+/**
+ * The <code>BundleProxyDelegate</code> TODO
+ */
+/* package */ class BundleProxyClassLoader extends ClassLoader {
+
+    private Bundle bundle;
+    private ClassLoader parent;
+
+    public BundleProxyClassLoader(Bundle bundle) {
+        this.bundle = bundle;
+    }
+
+    public BundleProxyClassLoader(Bundle bundle, ClassLoader parent) {
+        super(parent);
+        this.parent = parent;
+        this.bundle = bundle;
+    }
+
+    // Note: Both ClassLoader.getResources(...) and bundle.getResources(...) consult
+    // the boot classloader. As a result, BundleProxyClassLoader.getResources(...)
+    // might return duplicate results from the boot classloader. Prior to Java 5
+    // Classloader.getResources was marked final. If your target environment requires
+    // at least Java 5 you can prevent the occurence of duplicate boot classloader
+    // resources by overriding ClassLoader.getResources(...) instead of
+    // ClassLoader.findResources(...).
+    public Enumeration findResources(String name) throws IOException {
+        return this.bundle.getResources(name);
+    }
+
+    public URL findResource(String name) {
+        return this.bundle.getResource(name);
+    }
+
+    public Class findClass(String name) throws ClassNotFoundException {
+        return this.bundle.loadClass(name);
+    }
+
+    public URL getResource(String name) {
+        return (this.parent == null) ? this.findResource(name) : super.getResource(name);
+    }
+
+    protected Class loadClass(String name, boolean resolve) throws ClassNotFoundException {
+        Class clazz = (this.parent == null) ? this.findClass(name) : super.loadClass(name, false);
+        if (resolve)
+            super.resolveClass(clazz);
+
+        return clazz;
+    }
+}
diff --git a/src/main/java/org/apache/sling/jcr/classloader/internal/RepositoryClassLoaderFacade.java b/src/main/java/org/apache/sling/jcr/classloader/internal/RepositoryClassLoaderFacade.java
new file mode 100644
index 0000000..e8f0f41
--- /dev/null
+++ b/src/main/java/org/apache/sling/jcr/classloader/internal/RepositoryClassLoaderFacade.java
@@ -0,0 +1,200 @@
+/*
+ * 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.apache.sling.jcr.classloader.internal;
+
+import java.io.IOException;
+import java.net.URL;
+import java.net.URLClassLoader;
+import java.util.Enumeration;
+
+import javax.jcr.RepositoryException;
+import javax.jcr.Session;
+
+import org.apache.jackrabbit.classloader.DynamicRepositoryClassLoader;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * The <code>RepositoryClassLoaderFacade</code> TODO
+ */
+class RepositoryClassLoaderFacade extends URLClassLoader {
+
+    /** default log */
+    private static final Logger log = LoggerFactory.getLogger(RepositoryClassLoaderFacade.class);
+
+    private static final URL[] NO_URLS = new URL[0];
+
+    private RepositoryClassLoaderProviderImpl classLoaderProvider;
+    private ClassLoader parent;
+    private String sessionOwner;
+    private Session session;
+    private String[] classPath;
+    private DynamicRepositoryClassLoader delegate;
+
+    /**
+     * The reference counter. If not greater than zero, there are this
+     * number of (assumed) life references.
+     *
+     * @see #ref()
+     * @see #deref()
+     */
+    private int refCtr = 0;
+
+    public RepositoryClassLoaderFacade(
+            RepositoryClassLoaderProviderImpl classLoaderProvider,
+            ClassLoader parent,
+            String sessionOwner,
+            String[] classPath) {
+
+        // no parent class loader, we delegate to repository class loaders
+        super(NO_URLS, null);
+
+        this.classLoaderProvider = classLoaderProvider;
+        this.parent = parent;
+        this.classPath = classPath;
+        this.sessionOwner = sessionOwner;
+    }
+
+    public void addPath(String path) {
+        // create new class path
+        String[] newClassPath = new String[this.classPath.length+1];
+        System.arraycopy(this.classPath, 0, newClassPath, 0, this.classPath.length);
+        newClassPath[this.classPath.length] = path;
+        this.classPath = newClassPath;
+
+        // destroy the delegate and have a new one created
+        if (this.delegate != null) {
+            DynamicRepositoryClassLoader oldLoader = this.delegate;
+            this.delegate = null;
+            oldLoader.destroy();
+        }
+    }
+
+    public String[] getClassPath() {
+        return this.classPath.clone();
+    }
+
+    @Override
+    public URL[] getURLs() {
+        try {
+            return getDelegateClassLoader().getURLs();
+        } catch (RepositoryException re) {
+            log.error("Cannot get repository class loader to get URLs", re);
+            return NO_URLS;
+        }
+    }
+
+    protected synchronized Class loadClass(String name, boolean resolve) throws ClassNotFoundException {
+        try {
+            return this.getDelegateClassLoader().loadClass(name);
+        } catch (RepositoryException re) {
+            log.error("Cannot get repository class loader to load class " + name, re);
+            throw new ClassNotFoundException(name);
+        }
+    }
+
+    public URL getResource(String name) {
+        try {
+            return this.getDelegateClassLoader().getResource(name);
+        } catch (RepositoryException re) {
+            log.error("Cannot get repository class loader to get resource " + name, re);
+            return null;
+        }
+    }
+
+    public Enumeration findResources(String name) throws IOException {
+        try {
+            return this.getDelegateClassLoader().getResources(name);
+        } catch (RepositoryException re) {
+            throw (IOException) new IOException("Cannot lookup " + name).initCause(re);
+        }
+    }
+
+    //---------- Reference counting support -----------------------------------
+
+    /* package */ void destroy() {
+        if (this.delegate != null) {
+            this.delegate.destroy();
+            this.delegate = null;
+        }
+
+        if (this.session != null) {
+            this.session.logout();
+            this.session = null;
+        }
+    }
+
+    /**
+     * Increases the reference counter of this class loader.
+     */
+    /* package */void ref() {
+        this.refCtr++;
+    }
+
+    /**
+     * Decreases the reference counter of this class loader and calls the
+     * base class <code>destroy()</code> method, if this class loader has
+     * already been destroyed by calling the {@link #destroy()} method.
+     */
+    /* package */void deref() {
+        this.refCtr--;
+
+        // destroy if the loader should be destroyed and no refs exist
+//        if (refCtr <= 0 /* && destroyed */ ) {
+//            destroy();
+//        }
+    }
+
+    //---------- internal -----------------------------------------------------
+
+    private Session getSession() throws RepositoryException {
+        // check current session
+        if (this.session != null) {
+            if (this.session.isLive()) {
+                return this.session;
+            }
+
+            // drop delegate
+            if (this.delegate != null) {
+                this.delegate.destroy();
+                this.delegate = null;
+            }
+
+            // current session is not live anymore, drop
+            this.session.logout();
+            this.session = null;
+        }
+
+        // no session currently, acquire and return
+        this.session = this.classLoaderProvider.getSession(this.sessionOwner);
+        return this.session;
+    }
+
+    private DynamicRepositoryClassLoader getDelegateClassLoader() throws RepositoryException {
+        if (this.delegate != null) {
+            if (this.delegate.isDirty()) {
+                this.delegate = this.delegate.reinstantiate(this.getSession(), this.parent);
+            }
+        } else {
+            this.delegate = new DynamicRepositoryClassLoader(this.getSession(), this.classPath, this.parent);
+        }
+
+        return this.delegate;
+    }
+}
diff --git a/src/main/java/org/apache/sling/jcr/classloader/internal/RepositoryClassLoaderProviderImpl.java b/src/main/java/org/apache/sling/jcr/classloader/internal/RepositoryClassLoaderProviderImpl.java
new file mode 100644
index 0000000..690265a
--- /dev/null
+++ b/src/main/java/org/apache/sling/jcr/classloader/internal/RepositoryClassLoaderProviderImpl.java
@@ -0,0 +1,156 @@
+/*
+ * 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.apache.sling.jcr.classloader.internal;
+
+import java.util.Dictionary;
+import java.util.Iterator;
+
+import javax.jcr.RepositoryException;
+import javax.jcr.Session;
+import javax.jcr.SimpleCredentials;
+
+import org.apache.commons.collections.BidiMap;
+import org.apache.commons.collections.bidimap.DualHashBidiMap;
+import org.apache.sling.jcr.api.SlingRepository;
+import org.apache.sling.jcr.classloader.RepositoryClassLoaderProvider;
+import org.osgi.framework.Bundle;
+import org.osgi.service.component.ComponentContext;
+
+/**
+ * The <code>RepositoryClassLoaderProviderImpl</code> TODO
+ *
+ * @scr.component immediate="false" label="%loader.name"
+ *      description="%loader.description"
+ * @scr.property name="service.vendor" value="The Apache Software Foundation"
+ * @scr.property name="service.description"
+ *      value="Provides Repository ClassLoaders"
+ * @scr.service servicefactory="true"
+ */
+public class RepositoryClassLoaderProviderImpl
+        implements RepositoryClassLoaderProvider {
+
+    /**
+     * @scr.property values0="/var/classes"
+     */
+    public static final String CLASS_PATH_PROP = "classpath";
+
+    /**
+     * @scr.property valueRef="OWNER_DEFAULT"
+     */
+    public static final String OWNER_PROP = "owner";
+
+    // JSP Class Loader class path will be injected to the class loader !
+    private static final String[] CLASS_PATH_DEFAULT = { };
+
+    private static final String OWNER_DEFAULT = "admin";
+
+    private BidiMap loaders = new DualHashBidiMap();
+
+    /**
+     * @scr.reference
+     */
+    private SlingRepository repository;
+
+    private String[] classPath;
+
+    private String classLoaderOwner;
+
+    private BundleProxyClassLoader parent;
+
+    public ClassLoader getClassLoader(String owner) {
+        String classLoaderOwner = this.getClassLoaderOwner(owner);
+        RepositoryClassLoaderFacade loader =
+            (RepositoryClassLoaderFacade) this.loaders.get(classLoaderOwner);
+        if (loader == null) {
+            loader = new RepositoryClassLoaderFacade(this, this.parent,
+                classLoaderOwner, this.classPath);
+            this.loaders.put(classLoaderOwner, loader);
+        }
+
+        // extend reference counter
+        loader.ref();
+
+        return loader;
+    }
+
+    public void ungetClassLoader(ClassLoader classLoader) {
+        if (classLoader instanceof RepositoryClassLoaderFacade) {
+            RepositoryClassLoaderFacade cl = (RepositoryClassLoaderFacade) classLoader;
+            cl.deref();
+        }
+    }
+
+    //---------- Support for RepositoryClassLoaderFacade ----------------------
+
+    /* package */ Session getSession(String owner) throws RepositoryException {
+        // get an administrative session for potentiall impersonation
+        Session admin = this.repository.loginAdministrative(null);
+
+        // do use the admin session, if the admin's user id is the same as owner
+        if (admin.getUserID().equals(owner)) {
+            return admin;
+        }
+
+        // else impersonate as the owner and logout the admin session again
+        try {
+            return admin.impersonate(new SimpleCredentials(owner, new char[0]));
+        } finally {
+            admin.logout();
+        }
+    }
+
+    //---------- SCR Integration ----------------------------------------------
+
+    protected void activate(ComponentContext componentContext) {
+        @SuppressWarnings("unchecked")
+        Dictionary properties = componentContext.getProperties();
+
+        Object prop = properties.get(CLASS_PATH_PROP);
+        this.classPath = (prop instanceof String[]) ? (String[]) prop : CLASS_PATH_DEFAULT;
+
+        prop = properties.get(OWNER_PROP);
+        this.classLoaderOwner = (prop instanceof String)? (String) prop : OWNER_DEFAULT;
+
+        Bundle owner = componentContext.getUsingBundle();
+
+        // if there is no using bundle, we have an error !!
+        if (owner == null) {
+            throw new IllegalStateException("Using Bundle expected. Is this a servicefactory component ?");
+        }
+
+        this.parent = new BundleProxyClassLoader(owner, null);
+    }
+
+    @SuppressWarnings("unchecked")
+    protected void deactivate(ComponentContext componentContext) {
+        for (Iterator ci=this.loaders.values().iterator(); ci.hasNext(); ) {
+            RepositoryClassLoaderFacade cl = (RepositoryClassLoaderFacade) ci.next();
+            cl.destroy();
+            ci.remove();
+        }
+
+        this.parent = null;
+    }
+
+    //---------- internal -----------------------------------------------------
+
+    private String getClassLoaderOwner(String userId) {
+        return this.classLoaderOwner;
+    }
+}
diff --git a/src/main/resources/META-INF/DISCLAIMER b/src/main/resources/META-INF/DISCLAIMER
new file mode 100644
index 0000000..90850c2
--- /dev/null
+++ b/src/main/resources/META-INF/DISCLAIMER
@@ -0,0 +1,7 @@
+Apache Sling is an effort undergoing incubation at The Apache Software Foundation (ASF),
+sponsored by the Apache Jackrabbit PMC. Incubation is required of all newly accepted
+projects until a further review indicates that the infrastructure, communications,
+and decision making process have stabilized in a manner consistent with other
+successful ASF projects. While incubation status is not necessarily a reflection of
+the completeness or stability of the code, it does indicate that the project has yet
+to be fully endorsed by the ASF.
\ No newline at end of file
diff --git a/src/main/resources/META-INF/LICENSE b/src/main/resources/META-INF/LICENSE
new file mode 100644
index 0000000..d645695
--- /dev/null
+++ b/src/main/resources/META-INF/LICENSE
@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright [yyyy] [name of copyright owner]
+
+   Licensed 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.
diff --git a/src/main/resources/META-INF/NOTICE b/src/main/resources/META-INF/NOTICE
new file mode 100644
index 0000000..20f482a
--- /dev/null
+++ b/src/main/resources/META-INF/NOTICE
@@ -0,0 +1,8 @@
+Apache Sling JCR Classloader
+Copyright 2008-2009 The Apache Software Foundation
+
+Apache Sling is based on source code originally developed 
+by Day Software (http://www.day.com/).
+
+This product includes software developed at
+The Apache Software Foundation (http://www.apache.org/).
diff --git a/src/main/resources/OSGI-INF/metatype/metatype.properties b/src/main/resources/OSGI-INF/metatype/metatype.properties
new file mode 100644
index 0000000..af0a38d
--- /dev/null
+++ b/src/main/resources/OSGI-INF/metatype/metatype.properties
@@ -0,0 +1,44 @@
+#
+#  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.
+#
+
+#
+# This file contains localization strings for configuration labels and
+# descriptions as used in the metatype.xml descriptor generated by the
+# the Sling SCR plugin
+
+loader.name = Apache Sling Repository Class Loader Factory
+loader.description = Configuration for the Repository Class Loader Factory. This \
+ configuration applies to all clients of the factory even though each Bundle \
+ using the factory retrieves its own factory. The class path of the created \
+ Repository Class Loaders is configurable and the class loaders delegate use \
+ the bundle asking for the factory as the parent class loader.
+
+classpath.name = Class Path
+classpath.description = The class path in the repository to use as the class \
+ path for all created Repository Class Loaders. All Class Loaders are configured \
+ with the same class path. This class path must include any destinations used \
+ by Java compilers writing to the Repository such as the JSP Script Handler, \
+ which by default writes to "/var/classes". If no class path is defined, the \
+ "/var/classes" folder is used by default.
+
+owner.name = Repository Session User
+owner.description = Name of a user owning the Repository Class Loader sessions. \
+ If this is empty a simple administrative session is used. Otherwise the \
+ administrative session is used to impersonate as the given user.
+ 

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