EjbManagerWrapper.java

package org.objectweb.jonas_ejb.deployment.lib.wrapper;

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.net.URL;
import java.net.URLClassLoader;

import org.objectweb.jonas_ejb.deployment.api.DeploymentDesc;

import org.objectweb.jonas_lib.deployment.api.DeploymentDescException;

import org.objectweb.jonas.common.Log;
import org.objectweb.jonas.server.LoaderManager;

import org.objectweb.util.monolog.api.BasicLevel;
import org.objectweb.util.monolog.api.Logger;


public class EjbManagerWrapper {

    private static final String EJB_MANAGER_CLASSNAME = "org.objectweb.jonas_ejb.deployment.lib.EjbDeploymentDescManager";

    private static Logger logger = Log.getLogger(Log.JONAS_EAR_PREFIX);

    private EjbManagerWrapper() { }

    public static DeploymentDesc getDeploymentDesc(URL url, ClassLoader moduleCL, ClassLoader earCL)
    throws DeploymentDescException {
        LoaderManager lm = LoaderManager.getInstance();
        DeploymentDesc dd = null;

        try {
            ClassLoader tools = lm.getToolsLoader();
            Class manager = tools.loadClass(EJB_MANAGER_CLASSNAME);
            Method m = manager.getDeclaredMethod("getInstance", new Class[] {});
            Object instance = m.invoke(null, new Object[] {});
            m = manager.getDeclaredMethod("getDeploymentDesc", new Class[] {URL.class, ClassLoader.class, ClassLoader.class});
            dd = (DeploymentDesc) m.invoke(instance, new Object[] {url, moduleCL, earCL});
        } catch (InvocationTargetException ite) {
            Throwable t = ite.getTargetException();
            if (DeploymentDescException.class.isInstance(t)) {
                throw (DeploymentDescException) ite.getTargetException();
            } else {
                throw new DeploymentDescException("EjbDeploymentDescManager.getDeploymentDesc fails", t);
            }
        } catch (Exception e) {
            // TODO add i18n here
            throw new DeploymentDescException("Problems when using reflection on EjbDeploymentDescManager", e);
        }

        return dd;
    }

    public static void setAvailableEjbJarsAndAltDDs(URLClassLoader earClassLoader, URL[] jarUrls, URL[] ejbsAltDDs) {
        LoaderManager lm = LoaderManager.getInstance();
        try {
            ClassLoader tools = lm.getToolsLoader();
            Class manager = tools.loadClass(EJB_MANAGER_CLASSNAME);
            Method m = manager.getDeclaredMethod("getInstance", new Class[] {});
            Object instance = m.invoke(null, new Object[] {});
            m = manager.getDeclaredMethod("setAvailableEjbJarsAndAltDDs", new Class[] {ClassLoader.class, URL[].class, URL[].class});
            m.invoke(instance, new Object[] {earClassLoader, jarUrls, ejbsAltDDs});
        } catch (Exception e) {
            // Should never occurs
            logger.log(BasicLevel.ERROR, e);
        }
    }

    public static void setParsingWithValidation(boolean b) {
        LoaderManager lm = LoaderManager.getInstance();
        try {
            ClassLoader tools = lm.getToolsLoader();
            Class manager = tools.loadClass(EJB_MANAGER_CLASSNAME);
            Method m = manager.getDeclaredMethod("setParsingWithValidation", new Class[] {boolean.class});
            m.invoke(null, new Object[] {new Boolean(b)});
        } catch (Exception e) {
            // Should never occurs
            logger.log(BasicLevel.ERROR, e);
        }
    }

    public static void removeCache(ClassLoader classLoader) {
        LoaderManager lm = LoaderManager.getInstance();
        try {
            ClassLoader tools = lm.getToolsLoader();
            Class manager = tools.loadClass(EJB_MANAGER_CLASSNAME);
            Method m = manager.getDeclaredMethod("getInstance", new Class[] {});
            Object instance = m.invoke(null, new Object[] {});
            m = manager.getDeclaredMethod("removeCache", new Class[] {ClassLoader.class});
            m.invoke(instance, new Object[] {classLoader});
        } catch (Exception e) {
            // Should never occurs
            logger.log(BasicLevel.ERROR, e);
        }
    }

}

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