org.atmosphere.grizzly.AtmosphereWarDeployer Maven / Gradle / Ivy
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*
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package org.atmosphere.grizzly;
import java.io.File;
import java.io.FileFilter;
import java.net.JarURLConnection;
import java.net.URI;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.LinkedList;
import java.util.List;
import java.util.jar.JarEntry;
import java.util.jar.JarFile;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.atmosphere.cpr.AtmosphereHandler;
import com.sun.grizzly.http.servlet.ServletAdapter;
import com.sun.grizzly.http.servlet.deployer.WarDeployer;
import com.sun.grizzly.http.servlet.deployer.WarDeploymentConfiguration;
import com.sun.grizzly.http.servlet.deployer.WebAppAdapter;
public class AtmosphereWarDeployer extends WarDeployer {
private static Logger logger = Logger.getLogger(AtmosphereWarDeployer.class.getName());
@SuppressWarnings("unchecked")
private List atmosphereHandlerList = null;
@Override
protected WebAppAdapter getWebAppAdapter(ClassLoader webAppCL) {
// find AtmosphereHandlers
try {
atmosphereHandlerList = findAtmosphereHandlers((URLClassLoader) webAppCL);
} catch (Throwable t) {
logger.log(Level.WARNING, "Error in finding AtmosphereHandler", t);
}
return new AtmosphereWebAppAdapter();
}
@SuppressWarnings("unchecked")
@Override
protected void setExtraConfig(ServletAdapter sa, final WarDeploymentConfiguration configuration) {
AtmosphereAdapter adapter = (AtmosphereAdapter) sa;
// set the AtmosphereHandler presents
if (atmosphereHandlerList != null && !atmosphereHandlerList.isEmpty()) {
// possiblement un probleme si nous avons plusieurs handlers ?
for (AtmosphereHandler handler : atmosphereHandlerList) {
adapter.addAtmosphereHandler(adapter.getServletPath(), handler);
}
}
}
@SuppressWarnings("unchecked")
public List findAtmosphereHandlers(URLClassLoader classLoader) throws Exception {
if (classLoader == null) {
return null;
}
List atmosphereHandlerList = new LinkedList();
URL urls[] = classLoader.getURLs();
List list = new ArrayList();
for (URL url : urls) {
if ("file".equals(url.getProtocol())) {
if (url.getPath().endsWith("WEB-INF/lib/") || url.getPath().endsWith("WEB-INF/classes/")) {
File file = null;
try {
file = new File(url.toURI());
} catch (Exception e) {
URI uri = new URI(url.toString());
if (uri.getAuthority() == null)
file = new File(uri);
else
file = new File("//" + uri.getAuthority() + url.getFile());
}
if (file != null && file.isDirectory()) {
list.addAll(listFilesAndFolders(file.getCanonicalPath(), 0));
}
}
} else if ("jar".equals(url.getProtocol())) {
JarURLConnection conn = (JarURLConnection) url.openConnection();
JarFile jar = conn.getJarFile();
Enumeration en = jar.entries();
while (en.hasMoreElements()) {
JarEntry jarEntry = en.nextElement();
String classname = jarEntry.getName();
if (classname.endsWith(".class")) {
// have a weird case
// WEB-INF/classes/org/atmosphere/samples/chat/ChatAtmosphereHandler.class
classname = classname.replace("WEB-INF/classes/", "").replace('\\', '/').replace('/', '.').replace('$', '.');
list.add(classname);
}
}
}
}
logger.finest("Number of classes to check for AtmosphereHandler : " + list.size());
for (String classname : list) {
try {
Class clazz = classLoader.loadClass(classname.substring(0, classname.indexOf(".class")));
if (AtmosphereHandler.class.isAssignableFrom(clazz)) {
Object obj = clazz.newInstance();
if (obj instanceof AtmosphereHandler) {
if (!classname.startsWith("org.atmosphere.websocket")
&& !classname.startsWith("org.atmosphere.cpr")
&& !classname.startsWith("org.atmosphere.handler")) {
atmosphereHandlerList.add((AtmosphereHandler) obj);
}
}
}
} catch (Throwable t) {
}
}
return atmosphereHandlerList;
}
public List listFilesAndFolders
(String
folder, int tabCounter) {
List list = new ArrayList();
File file = new File(folder);
if (!file.exists() || !file.isDirectory()) {
logger.info("Parameter is not a directory : " + folder);
return list;
}
File[] fileArray = file.listFiles(new FileFilter() {
public boolean accept(File pathname) {
if (pathname.isDirectory() || pathname.getName().endsWith(".class")) {
return true;
}
return false;
}
});
for (int i = 0; i < fileArray.length; i++) {
if (fileArray[i].isDirectory()) {
list.addAll(listFilesAndFolders(fileArray[i].getAbsolutePath(), tabCounter + 1));
} else {
String toSkip = "WEB-INF" + File.separator + "classes" + File.separator;
String path = fileArray[i].getPath();
path = path.substring(path.indexOf(toSkip) + toSkip.length());
String classname = path.replace('\\', '/').replace('/', '.');
list.add(classname);
}
}
tabCounter--;
return list;
}
}
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