/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright 1997-2007 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 com.sun.enterprise.deployapi;
import java.io.*;
import java.util.jar.*;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.logging.Logger;
import java.util.logging.Level;
import javax.enterprise.deploy.shared.factories.DeploymentFactoryManager;
import javax.enterprise.deploy.spi.factories.DeploymentFactory;
import com.sun.enterprise.deployment.util.DOLUtils;
import com.sun.enterprise.util.shared.ArchivistUtils;
/**
* This singleton object is responsible to resolving all the
* DeploymentManagerFactory installed in the RI and register
* them to the DeploymentManagerFactory
*
* @author Jerome Dochez
*/
public class DeploymentFactoryInstaller {
private static DeploymentFactoryInstaller dfInstaller = null;
private final String J2EE_DEPLOYMENT_MANAGER_REPOSITORY = "lib" + File.separator + "deployment";
private final String J2EE_DEPLOYMENT_MANAGER = "J2EE-DeploymentFactory-Implementation-Class";
private final String J2EE_HOME = "com.sun.enterprise.home";
/** Creates a single instance of DeploymentManagerFactoryResolver */
private DeploymentFactoryInstaller() {
}
public static DeploymentFactoryInstaller getInstaller() {
if (dfInstaller==null) {
dfInstaller = new DeploymentFactoryInstaller();
dfInstaller.initialize();
}
return dfInstaller;
}
/**
* @return a list of installed deployment manager
* implementation archives
*/
public File[] getListOfDeploymentFactoryFiles() {
File repository = new File(System.getProperty("com.sun.aas.installRoot")+File.separator+
J2EE_DEPLOYMENT_MANAGER_REPOSITORY);
if (DOLUtils.getDefaultLogger().isLoggable(Level.FINE)) {
DOLUtils.getDefaultLogger().fine("J2EE Deployment factory repository = "
+ repository.getAbsolutePath());
}
if (!repository.exists()) {
DOLUtils.getDefaultLogger().log(Level.SEVERE, "enterprise.deployment.backend.deplyomentManagerLoadFailure",
new Object[] {"Cannot find any deployment manager"});
return null;
}
return repository.listFiles();
}
/**
* Add a new deployment manager to our respository
*/
public void addDeploymentFactory(File newDM) throws IOException {
int number=1;
// copy to the right location...
File repository = new File(System.getProperty(J2EE_HOME)+File.separator+
J2EE_DEPLOYMENT_MANAGER_REPOSITORY);
File to = new File(repository, newDM.getName());
while (to.exists()) {
to = new File(repository, newDM.getName()+number);
number++;
}
ArchivistUtils.copy(
new BufferedInputStream(new FileInputStream(newDM)),
new BufferedOutputStream(new FileOutputStream(to)));
installDeploymentFactory(to);
}
protected void installDeploymentFactory(File installedDM) throws IOException {
if (DOLUtils.getDefaultLogger().isLoggable(Level.FINE)) {
DOLUtils.getDefaultLogger().fine("Installing Deployment factory = "
+ installedDM.getAbsolutePath());
}
// let's check first that we indeed have a valid
// deployment manager implementation
/*
*Declare the JarFile and Manifest but populate them inside the first try block. This way the
*jar file can be closed right away to conserve resources.
*/
JarFile jarFile = null;
Manifest m = null;
try {
jarFile = new JarFile(installedDM);
m = jarFile.getManifest();
} finally {
/*
*The jarFile.close can throw IOException, but this method also throws that exception so there is no
*need to catch it and wrap it here in the finally clause.
*/
jarFile.close();
jarFile = null;
}
String className = m.getMainAttributes().getValue(J2EE_DEPLOYMENT_MANAGER);
URL[] urls = new URL[]{installedDM.toURI().toURL()};
URLClassLoader urlClassLoader = new java.net.URLClassLoader(urls, getClass().getClassLoader());
Class factory = null;
try {
factory=urlClassLoader.loadClass(className);
} catch (ClassNotFoundException cnfe) {
DOLUtils.getDefaultLogger().log(Level.SEVERE, "enterprise.deployment.backend.deplyomentManagerLoadFailure",
new Object[] {"Unable to load declared DeploymentManagerFactory"});
throw new IllegalArgumentException(className + " is not present in the " + installedDM.getName());
}
// Ok we have the class, let's instanciate it, check it and
// if everything is fine, register it to the DeploymentFactoryManager
Object df = null;
try {
df = factory.newInstance();
} catch (Exception ie) {
DOLUtils.getDefaultLogger().log(Level.SEVERE, "enterprise.deployment.backend.deplyomentManagerLoadFailure",
new Object[]{className});
ie.printStackTrace();
throw new IllegalArgumentException("Cannot install " + installedDM.getName());
}
if (df instanceof DeploymentFactory) {
DeploymentFactoryManager.getInstance().registerDeploymentFactory((DeploymentFactory) df);
} else {
throw new IllegalArgumentException("The " + className +
" declared as a DeploymentFactory does implement the DeploymentFactory interface");
}
}
protected void initialize() {
File[] elligibleFiles = getListOfDeploymentFactoryFiles();
if (elligibleFiles==null) {
return;
}
for (int i=0;i<elligibleFiles.length;i++) {
try {
installDeploymentFactory(elligibleFiles[i]);
} catch(Exception ioe) {
ioe.printStackTrace();
DOLUtils.getDefaultLogger().log(Level.SEVERE, "enterprise.deployment.backend.deplyomentManagerLoadFailure",
new Object[] {elligibleFiles[i].getName()});
}
}
}
}
|
