/*
* JBoss, Home of Professional Open Source
* Copyright 2006, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt 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.embedded;
import java.io.File;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.List;
import java.util.StringTokenizer;
import org.jboss.deployers.client.spi.main.MainDeployer;
import org.jboss.deployers.spi.DeploymentException;
import org.jboss.deployers.structure.spi.DeploymentUnit;
import org.jboss.deployers.structure.spi.main.MainDeployerStructure;
import org.jboss.deployers.vfs.spi.client.VFSDeployment;
import org.jboss.deployers.vfs.spi.client.VFSDeploymentFactory;
import org.jboss.kernel.Kernel;
import org.jboss.virtual.VFS;
import org.jboss.virtual.VirtualFile;
import org.jboss.virtual.VirtualFileFilter;
/**
* comment
*
* @author <a href="bill@jboss.com">Bill Burke</a>
* @author adrian@jboss.org
* @version $Revision: 1.1 $
*/
public class DeploymentGroup
{
private ArrayList<VFSDeployment> deployments = new ArrayList<VFSDeployment>();
protected MainDeployer mainDeployer;
protected Kernel kernel;
private VirtualFileFilter filter;
private ClassLoader classLoader;
public void setMainDeployer(MainDeployer mainDeployer)
{
this.mainDeployer = mainDeployer;
}
public void setKernel(Kernel kernel)
{
this.kernel = kernel;
}
/**
*
* File filter that will be used when scanning a directory
*
* @param filter
*/
public void setFilter(VirtualFileFilter filter)
{
this.filter = filter;
}
public void setClassLoader(ClassLoader classLoader)
{
this.classLoader = classLoader;
}
/**
* A helper to find all deployments under a directory vf
* and add them to the supplied list.
*
* We may recurse.
*/
private static void addDeployments(VirtualFileFilter filter, List<VirtualFile> list, VirtualFile root, boolean recurse)
throws IOException
{
List<VirtualFile> components = root.getChildren();
for (VirtualFile component : components)
{
// Filter the component regardless of its type
if( filter != null && filter.accepts(component) == false)
continue;
if (component.isLeaf())
{
list.add(component);
}
// TODO replace . in the name with isArchive() == false?
else if (component.getName().indexOf('.') == -1 && recurse)
{
// recurse if not '.' in name and recursive search is enabled
addDeployments(filter, list, component, true);
}
else
{
list.add(component);
}
}
}
/**
* Ask the mainDeployer to process the set of files you added to the group
* this will also check the processing
*
* @throws org.jboss.deployers.spi.DeploymentException
*/
public void process() throws DeploymentException
{
mainDeployer.process();
mainDeployer.checkComplete();
}
/**
* Ask the mainDeployer to undeploy the set of files in the group
*
* @throws org.jboss.deployers.spi.DeploymentException
*/
public void undeploy() throws DeploymentException
{
for (VFSDeployment ctx : deployments)
mainDeployer.removeDeployment(ctx);
process();
}
/**
* Schedule a VirtualFile to be deployed
*
* @param vf
* @throws DeploymentException
*/
public void add(VirtualFile vf) throws DeploymentException
{
VFSDeploymentFactory factory = VFSDeploymentFactory.getInstance();
VFSDeployment deployment = factory.createVFSDeployment(vf);
mainDeployer.addDeployment(deployment);
deployments.add(deployment);
}
/**
* schedules a URL to be deployed
*
* @param url
* @throws DeploymentException
*/
public void add(URL url) throws DeploymentException
{
VirtualFile file = getVirtualFile(url);
add(file);
}
public static VirtualFile getVirtualFile(URL url)
throws DeploymentException
{
VirtualFile file = null;
try
{
file = VFS.getRoot(url);
}
catch (IOException e)
{
throw new DeploymentException("Unable to get VirtualFile for url: " + url, e);
}
return file;
}
/**
* schedules a list of virtual files to be deployed
*
* @param vfs
* @throws DeploymentException
*/
public void addVirtualFiles(List<VirtualFile> vfs) throws DeploymentException
{
for (VirtualFile vf : vfs)
{
add(vf);
}
}
/**
* schedules a list of urls to be deployed
*
* @param urls
* @throws DeploymentException
*/
public void addUrls(List<URL> urls) throws DeploymentException
{
for (URL url : urls)
{
add(url);
}
}
/**
* Scan all paths/jars in Java CLasspath (found with java.class.path System Property)
* schedule these jars to be deployed
*
* @throws org.jboss.deployers.spi.DeploymentException
*/
public void addClasspath() throws DeploymentException
{
addUrls(getClassPaths());
}
public static List<URL> getClassPaths() throws DeploymentException
{
List<URL> list = new ArrayList<URL>();
String classpath = System.getProperty("java.class.path");
StringTokenizer tokenizer = new StringTokenizer(classpath, File.pathSeparator);
while (tokenizer.hasMoreTokens())
{
String path = tokenizer.nextToken();
File fp = new File(path);
if (!fp.exists()) throw new DeploymentException("File in java.class.path does not exist: " + fp);
try
{
list.add(fp.toURL());
}
catch (MalformedURLException e)
{
throw new DeploymentException(e);
}
}
return list;
}
/**
* Scan Java Classpath (found with java.class.path)
* for a specified list of files you want to deploy
*
* The files listed should be only the filename. Do not put relative or absolute paths in filenames.
* i.e. "myejbs.jar, my-beans.xml"
*
* @param paths comma delimited list of files
* @throws org.jboss.deployers.spi.DeploymentException
*/
public void addClasspath(String paths) throws DeploymentException
{
List<URL> urls = getClassPaths(paths);
addUrls(urls);
}
public static List<URL> getClassPaths(String paths) throws DeploymentException
{
ArrayList<URL> list = new ArrayList<URL>();
String classpath = System.getProperty("java.class.path");
StringTokenizer tokenizer = new StringTokenizer(classpath, File.pathSeparator);
String[] split = paths.split(",");
for (int i = 0; i < split.length; i++)
{
split[i] = split[i].trim();
}
while (tokenizer.hasMoreTokens())
{
String path = tokenizer.nextToken().trim();
boolean found = false;
for (String wantedPath : split)
{
if (path.endsWith(File.separator + wantedPath))
{
found = true;
break;
}
}
if (!found)
continue;
File fp = new File(path);
if (!fp.exists())
throw new DeploymentException("File in java.class.path does not exists: " + fp);
try
{
list.add(fp.toURL());
}
catch (MalformedURLException e)
{
throw new DeploymentException(e);
}
}
return list;
}
/**
* Search for the resource using the group's configured classloader
* if no classloader, then Thread.currentThread().getContextClassLoader() is used.
* classLoader.getResource(String resource)
*
* Schedule the resource to be deployed.
*
* @param resource
* @throws DeploymentException
* @throws NullPointerException
*/
public void addResource(String resource) throws DeploymentException, NullPointerException
{
ClassLoader loader = Thread.currentThread().getContextClassLoader();
if (classLoader != null)
loader = classLoader;
URL url = loader.getResource(resource);
if (url == null)
throw new NullPointerException("Resource was null: " + resource);
add(url);
}
/**
* Deploy the classpath directory or .jar file a classloader resource is located in.
*
* i.e.
*
* classpath is "/home/wburke/lib/tutorial.jar"
* tutorial.jar has "META-INF/persistence.xml" resource within it.
*
* addResourceBase("META-INF/persistence.xml") will try and deploy tutorial.jar
*
*
* @param baseResource
* @throws DeploymentException
*/
public void addResourceBase(String baseResource) throws DeploymentException
{
ClassLoader loader = Thread.currentThread().getContextClassLoader();
if (classLoader != null) loader = classLoader;
URL url = loader.getResource(baseResource);
if (url == null) throw new RuntimeException("Could not find baseResource: " + baseResource);
addBaseResource(url, baseResource);
}
protected void addBaseResource(URL url, String baseResource)
throws DeploymentException
{
String urlString = url.toString();
int idx = urlString.lastIndexOf(baseResource);
urlString = urlString.substring(0, idx);
URL deployUrl = null;
try
{
deployUrl = new URL(urlString);
}
catch (MalformedURLException e)
{
throw new RuntimeException(e);
}
add(deployUrl);
}
/**
* Deploy the classpath directories or .jar files a classloader resource is located in.
* ClassLoader.getResources() is used to find the base resources.
*
* i.e.
*
* classpath is "/home/wburke/lib/tutorial.jar:/home/wburke/lib/pu.jar"
* tutorial.jar and pu.jar has "META-INF/persistence.xml" resource within it.
*
* addResourceBases("META-INF/persistence.xml") will try and deploy tutorial.jar and pu.jar because
* the both have the META-INF/persistence.xml resource within them.
*
*
* @param baseResource
* @throws DeploymentException
*/
public void addResourceBases(String baseResource) throws DeploymentException
{
ClassLoader loader = Thread.currentThread().getContextClassLoader();
if (classLoader != null) loader = classLoader;
try
{
Enumeration<URL> urls = loader.getResources(baseResource);
while (urls.hasMoreElements())
{
URL url = urls.nextElement();
addBaseResource(url, baseResource);
}
}
catch (IOException e)
{
throw new RuntimeException(e);
}
}
/**
* Find the .class file resource of provided class
* Return a URL pointing to the classpath the resource is located in.
*
* i.e.
*
* classpath is "/home/wburke/lib/tutorial.jar"
* tutorial.jar has "META-INF/persistence.xml" resource within it.
*
* addResourceBase("META-INF/persistence.xml") will try and deploy tutorial.jar
*
*
* @param baseResource
* @throws DeploymentException
*/
public void addResourceBase(Class baseResource) throws DeploymentException
{
String resource = baseResource.getName().replace('.', '/') + ".class";
addResourceBase(resource);
}
/**
* Search for resources using the group's configured classloader
* if no classloader, then Thread.currentThread().getContextClassLoader() is used.
* classLoader.getResources(String resource)
*
* Schedule the resource to be deployed.
*
* @param resource
* @throws DeploymentException
* @throws IOException
*/
public void addMultipleResources(String resource) throws DeploymentException, IOException
{
ClassLoader loader = Thread.currentThread().getContextClassLoader();
if (classLoader != null) loader = classLoader;
Enumeration<URL> urls = loader.getResources(resource);
while (urls.hasMoreElements())
{
add(urls.nextElement());
}
}
/**
* Searches for a directory as described in the getDirFromResource() method of this class.
*
* schedules all possible files in directory to be deployed
*
*
* @param resource
* @param recurse whether or not to recurse child directories
* @throws DeploymentException
* @throws IOException
*/
public void addDirectoryByResource(String resource, boolean recurse) throws DeploymentException, IOException
{
ClassLoader loader = Thread.currentThread().getContextClassLoader();
if (classLoader != null) loader = classLoader;
List<VirtualFile> files = getDeployerDirUrlsFromResource(filter, loader, resource, recurse);
addVirtualFiles(files);
}
/**
* Searches for a file based on the location of an existing classloader resource
* as described in the getDirFromResource() method of this class.
*
* schedules this particular file for deployment
*
*
* @param resource
* @throws DeploymentException
* @throws IOException
*/
public void addFileByResource(String resource) throws DeploymentException, IOException
{
ClassLoader loader = Thread.currentThread().getContextClassLoader();
if (classLoader != null) loader = classLoader;
URL url = getDirFromResource(loader, resource);
if (url == null)
{
throw new DeploymentException("Unable to find file from resource: " + resource);
}
String urlStr = url.toString();
if (urlStr.endsWith("/"))
{
urlStr = urlStr.substring(0, urlStr.length() -1);
}
url = new URL(urlStr);
add(url);
}
public void addDirectory(URL directory, boolean recurse) throws DeploymentException, IOException
{
addVirtualFiles(getDeployerDirUrls(filter, directory, recurse));
}
/**
* Get the deployment units
*
* @return the deployment units
* @throws IllegalStateException when the units cannot be located
*/
public List<DeploymentUnit> getDeploymentUnits()
{
ArrayList<DeploymentUnit> result = new ArrayList<DeploymentUnit>();
MainDeployerStructure structure = (MainDeployerStructure) mainDeployer;
for (VFSDeployment deployment : deployments)
{
DeploymentUnit unit = structure.getDeploymentUnit(deployment.getName());
if (unit == null)
throw new IllegalStateException("DeploymentUnit not found " + deployment.getName());
result.add(unit);
}
return result;
}
public List<VFSDeployment> getDeployments()
{
return deployments;
}
public static List<VirtualFile> getDeployerDirUrlsFromResource(VirtualFileFilter filter, ClassLoader loader, String resource, boolean recurse)
throws DeploymentException, IOException
{
URL url = getDirFromResource(loader, resource);
if (url == null)
{
throw new DeploymentException("Unable to find deployDir from resource: " + resource);
}
List<VirtualFile> files = getDeployerDirUrls(filter, url, recurse);
return files;
}
public static List<VirtualFile> getDeployerDirUrls(VirtualFileFilter filter, URL url, boolean recurse)
throws DeploymentException, IOException
{
VirtualFile file = null;
try
{
file = VFS.getRoot(url);
}
catch (Exception e)
{
throw new DeploymentException("Unable to find deployDir from url: " + url, e);
}
List<VirtualFile> files = new ArrayList<VirtualFile>();
addDeployments(filter, files, file, recurse);
return files;
}
/**
* Find the directory that contains a given resource.
* <p/>
* The '.' character can be used to specify the current directory.
* The '..' string can be used to specify a higher relative path
* <p/>
* i.e.
* <p/>
* getDirFromResource(loader, "org/jboss/Test.class")
* file:/<root>/org/jboss/
* <p/>
* getDirFromResource(loader, "org/jboss/Test.class/..")
* file:/<root>/org/
* <p/>
* getDirFromResource(loader, "org/jboss/Test.class/../acme")
* file:/<root>/org/acme/
* <p/>
* getDirFromResource(loader, "org/jboss/Test.class/./embedded")
* file:/<root>/org/jboss/embedded/
*
* @param loader
* @param resource
* @return the url
*/
public static URL getDirFromResource(ClassLoader loader, String resource)
{
int idx = resource.indexOf("/.");
String base = resource;
String relative = null;
if (idx != -1)
{
base = resource.substring(0, idx);
relative = resource.substring(idx + 1);
}
URL url = loader.getResource(base);
if (url == null) return null;
String urlAsString = url.toString();
String[] paths = urlAsString.split("/");
int last = paths.length - 2;
if (relative != null)
{
String[] relativePaths = relative.split("/");
int relativeStart = 0;
for (String relativePath : relativePaths)
{
if (relativePath.equals(".."))
{
last--;
relativeStart++;
}
else if (relativePath.equals("."))
{
relativeStart++;
}
else
{
break;
}
}
urlAsString = "";
for (int i = 0; i <= last; i++)
{
urlAsString += paths[i] + "/";
}
for (int i = relativeStart; i < relativePaths.length; i++)
{
urlAsString += relativePaths[i] + "/";
}
}
else
{
urlAsString = "";
for (int i = 0; i <= last; i++)
{
urlAsString += paths[i] + "/";
}
}
try
{
url = new URL(urlAsString);
}
catch (MalformedURLException e)
{
throw new RuntimeException(e);
}
return url;
}
}