[jboss-cvs] JBossAS SVN: r86441 - in projects/spring-int/trunk/weaving/src/main/java/org/jboss: instrument and 1 other directories.
jboss-cvs-commits at lists.jboss.org
jboss-cvs-commits at lists.jboss.org
Sat Mar 28 14:00:39 EDT 2009
Author: alesj
Date: 2009-03-28 14:00:39 -0400 (Sat, 28 Mar 2009)
New Revision: 86441
Added:
projects/spring-int/trunk/weaving/src/main/java/org/jboss/instrument/
projects/spring-int/trunk/weaving/src/main/java/org/jboss/instrument/classloading/
projects/spring-int/trunk/weaving/src/main/java/org/jboss/instrument/classloading/ClassFileTransformer2Translator.java
projects/spring-int/trunk/weaving/src/main/java/org/jboss/instrument/classloading/JBoss5ClassLoader.java
projects/spring-int/trunk/weaving/src/main/java/org/jboss/instrument/classloading/JBoss5LoadTimeWeaver.java
Removed:
projects/spring-int/trunk/weaving/src/main/java/org/jboss/classloader/
Log:
Use reflection instead of split package.
Copied: projects/spring-int/trunk/weaving/src/main/java/org/jboss/instrument/classloading/ClassFileTransformer2Translator.java (from rev 86439, projects/spring-int/trunk/weaving/src/main/java/org/jboss/classloader/spi/base/ClassFileTransformer2Translator.java)
===================================================================
--- projects/spring-int/trunk/weaving/src/main/java/org/jboss/instrument/classloading/ClassFileTransformer2Translator.java (rev 0)
+++ projects/spring-int/trunk/weaving/src/main/java/org/jboss/instrument/classloading/ClassFileTransformer2Translator.java 2009-03-28 18:00:39 UTC (rev 86441)
@@ -0,0 +1,54 @@
+/*
+ * JBoss, Home of Professional Open Source.
+ * Copyright 2008, Red Hat Middleware LLC, and individual contributors
+ * as indicated by the @author tags. See the copyright.txt file in the
+ * distribution for a full listing of individual contributors.
+ *
+ * This is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This software 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this software; if not, write to the Free
+ * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
+ */
+package org.jboss.instrument.classloading;
+
+import java.security.ProtectionDomain;
+import java.lang.instrument.ClassFileTransformer;
+
+import org.jboss.util.loading.Translator;
+
+/**
+ * ClassFileTransfomer to Translator bridge.
+ *
+ * @author <a href="mailto:ales.justin at jboss.org">Ales Justin</a>
+ */
+public class ClassFileTransformer2Translator implements Translator
+{
+ private ClassFileTransformer transformer;
+
+ public ClassFileTransformer2Translator(ClassFileTransformer transformer)
+ {
+ if (transformer == null)
+ throw new IllegalArgumentException("Null transformer");
+
+ this.transformer = transformer;
+ }
+
+ public byte[] transform(ClassLoader loader, String className, Class<?> classBeingRedefined, ProtectionDomain protectionDomain, byte[] classfileBuffer) throws Exception
+ {
+ return transformer.transform(loader, className, classBeingRedefined, protectionDomain, classfileBuffer);
+ }
+
+ public void unregisterClassLoader(ClassLoader loader)
+ {
+ }
+}
\ No newline at end of file
Added: projects/spring-int/trunk/weaving/src/main/java/org/jboss/instrument/classloading/JBoss5ClassLoader.java
===================================================================
--- projects/spring-int/trunk/weaving/src/main/java/org/jboss/instrument/classloading/JBoss5ClassLoader.java (rev 0)
+++ projects/spring-int/trunk/weaving/src/main/java/org/jboss/instrument/classloading/JBoss5ClassLoader.java 2009-03-28 18:00:39 UTC (rev 86441)
@@ -0,0 +1,122 @@
+/*
+ * JBoss, Home of Professional Open Source.
+ * Copyright 2008, Red Hat Middleware LLC, and individual contributors
+ * as indicated by the @author tags. See the copyright.txt file in the
+ * distribution for a full listing of individual contributors.
+ *
+ * This is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This software 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this software; if not, write to the Free
+ * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
+ */
+package org.jboss.instrument.classloading;
+
+import java.lang.instrument.ClassFileTransformer;
+import java.lang.reflect.Method;
+
+import org.jboss.classloader.spi.ClassLoaderPolicy;
+import org.jboss.classloader.spi.ClassLoaderSystem;
+import org.jboss.classloader.spi.base.BaseClassLoader;
+import org.jboss.classloader.spi.base.BaseClassLoaderDomain;
+import org.jboss.classloader.spi.base.BaseClassLoaderPolicy;
+import org.jboss.classloader.spi.base.BaseClassLoaderSystem;
+import org.jboss.logging.Logger;
+import org.jboss.util.loading.Translator;
+import org.springframework.util.Assert;
+
+/**
+ * Reflective wrapper around a JBoss5 class loader. Used to
+ * encapsulate the classloader-specific methods (discovered and
+ * called through reflection) from the load-time weaver.
+ *
+ * @author <a href="mailto:ales.justin at jboss.org">Ales Justin</a>
+ */
+public class JBoss5ClassLoader
+{
+ private static Logger log = Logger.getLogger(JBoss5ClassLoader.class);
+
+ private final BaseClassLoader classLoader;
+ private final ClassLoaderPolicy policy;
+ private ClassLoaderSystem system;
+
+ private Method setTranslator;
+
+ public JBoss5ClassLoader(BaseClassLoader classLoader)
+ {
+ Assert.notNull(classLoader, "ClassLoader must not be null");
+ this.classLoader = classLoader;
+
+ try
+ {
+ Method getPolicy = BaseClassLoader.class.getDeclaredMethod("getPolicy");
+ policy = (ClassLoaderPolicy)getPolicy.invoke(classLoader);
+ try
+ {
+ // let's check if we have a patched policy, with translator per policy
+ setTranslator = BaseClassLoaderPolicy.class.getDeclaredMethod("setTranslator");
+ }
+ catch (Exception ignored)
+ {
+ log.info("Policy doesn't have setTranslator, falling back to ClassLoaderSystem.");
+
+ Method getClassLoaderDomain = BaseClassLoaderPolicy.class.getDeclaredMethod("getClassLoaderDomain");
+ BaseClassLoaderDomain domain = (BaseClassLoaderDomain)getClassLoaderDomain.invoke(policy);
+ Method getClassLoaderSystem = BaseClassLoaderDomain.class.getDeclaredMethod("getClassLoaderSystem");
+ BaseClassLoaderSystem system = (BaseClassLoaderSystem)getClassLoaderSystem.invoke(domain);
+ if (system instanceof ClassLoaderSystem)
+ {
+ this.system = ClassLoaderSystem.class.cast(system);
+ }
+ else
+ {
+ throw new IllegalArgumentException("ClassLoaderSyatem must be instance of [" + ClassLoaderSystem.class.getName() + "]");
+ }
+ }
+ }
+ catch (Exception e)
+ {
+ throw new IllegalStateException("Could not initialize JBoss ClassLoader because JBoss5 API classes are not available", e);
+ }
+ }
+
+ public void addTransformer(ClassFileTransformer transformer)
+ {
+ Assert.notNull(transformer, "ClassFileTransformer must not be null");
+ Translator translator = new ClassFileTransformer2Translator(transformer);
+ if (setTranslator != null)
+ {
+ try
+ {
+ setTranslator.invoke(translator);
+ }
+ catch (Exception e)
+ {
+ throw new IllegalArgumentException(e);
+ }
+ }
+ else
+ {
+ system.setTranslator(translator);
+ }
+ }
+
+ public ClassLoader getInternalClassLoader()
+ {
+ return classLoader;
+ }
+
+ public ClassLoader getThrowawayClassLoader()
+ {
+ return new BaseClassLoader(policy);
+ }
+}
\ No newline at end of file
Copied: projects/spring-int/trunk/weaving/src/main/java/org/jboss/instrument/classloading/JBoss5LoadTimeWeaver.java (from rev 86439, projects/spring-int/trunk/weaving/src/main/java/org/jboss/classloader/spi/base/JBoss5LoadTimeWeaver.java)
===================================================================
--- projects/spring-int/trunk/weaving/src/main/java/org/jboss/instrument/classloading/JBoss5LoadTimeWeaver.java (rev 0)
+++ projects/spring-int/trunk/weaving/src/main/java/org/jboss/instrument/classloading/JBoss5LoadTimeWeaver.java 2009-03-28 18:00:39 UTC (rev 86441)
@@ -0,0 +1,89 @@
+/*
+ * JBoss, Home of Professional Open Source.
+ * Copyright 2008, Red Hat Middleware LLC, and individual contributors
+ * as indicated by the @author tags. See the copyright.txt file in the
+ * distribution for a full listing of individual contributors.
+ *
+ * This is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This software 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this software; if not, write to the Free
+ * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
+ */
+package org.jboss.instrument.classloading;
+
+import java.lang.instrument.ClassFileTransformer;
+
+import org.jboss.classloader.spi.base.BaseClassLoader;
+import org.springframework.instrument.classloading.LoadTimeWeaver;
+import org.springframework.util.Assert;
+import org.springframework.util.ClassUtils;
+
+/**
+ * {@link LoadTimeWeaver} implementation for JBoss5's instrumentable ClassLoader.
+ *
+ * @author <a href="mailto:ales.justin at jboss.org">Ales Justin</a>
+ */
+public class JBoss5LoadTimeWeaver implements LoadTimeWeaver
+{
+ private JBoss5ClassLoader classLoader;
+
+ public JBoss5LoadTimeWeaver()
+ {
+ this(ClassUtils.getDefaultClassLoader());
+ }
+
+ public JBoss5LoadTimeWeaver(ClassLoader classLoader)
+ {
+ Assert.notNull(classLoader, "ClassLoader must not be null");
+ BaseClassLoader bcl = determineClassLoader(classLoader);
+ if (bcl == null)
+ {
+ throw new IllegalArgumentException(classLoader + " and its parents are not suitable ClassLoaders: " +
+ "An [" + BaseClassLoader.class.getName() + "] implementation is required.");
+ }
+ this.classLoader = new JBoss5ClassLoader(bcl);
+ }
+
+ /**
+ * Find first BaseClassLoader implementation.
+ *
+ * @param classLoader the classloader
+ * @return BaseClassLoader instance or null if not found
+ */
+ private BaseClassLoader determineClassLoader(ClassLoader classLoader)
+ {
+ for (ClassLoader cl = classLoader; cl != null; cl = cl.getParent())
+ {
+ if (cl instanceof BaseClassLoader)
+ {
+ return (BaseClassLoader)cl;
+ }
+ }
+ return null;
+ }
+
+ public void addTransformer(ClassFileTransformer transformer)
+ {
+ classLoader.addTransformer(transformer);
+ }
+
+ public ClassLoader getInstrumentableClassLoader()
+ {
+ return classLoader.getInternalClassLoader();
+ }
+
+ public ClassLoader getThrowawayClassLoader()
+ {
+ return classLoader.getThrowawayClassLoader();
+ }
+}
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