Florian Richter
14 years ago
parent
adbdabb5e7
commit
1989ba64c0
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package net.yacy.http;
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import java.io.IOException;
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import javax.servlet.ServletException;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import org.eclipse.jetty.server.Request;
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import org.eclipse.jetty.server.handler.AbstractHandler;
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public class AuthenticationHandler extends AbstractHandler {
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@Override
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public void handle(String target, Request baseRequest, HttpServletRequest request,
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HttpServletResponse response) throws IOException, ServletException {
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// TODO Auto-generated method stub
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}
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}
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package net.yacy.http;
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import org.eclipse.jetty.server.Handler;
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import org.eclipse.jetty.server.Server;
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import org.eclipse.jetty.server.handler.DefaultHandler;
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import org.eclipse.jetty.server.handler.HandlerList;
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import org.eclipse.jetty.server.handler.ResourceHandler;
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import org.eclipse.jetty.server.nio.SelectChannelConnector;
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import org.eclipse.jetty.util.thread.QueuedThreadPool;
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public class HttpServer {
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public static void initYaCyServer() {
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// create directories
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}
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/**
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* @param port TCP Port to listen for http requests
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* @throws Exception
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*/
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public static void runHttpServer(int port) throws Exception {
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Server server = new Server();
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SelectChannelConnector connector = new SelectChannelConnector();
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connector.setPort(port);
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//connector.setThreadPool(new QueuedThreadPool(20));
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server.addConnector(connector);
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ResourceHandler resource_handler = new ResourceHandler();
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resource_handler.setDirectoriesListed(true);
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resource_handler.setWelcomeFiles(new String[]{ "index.html" });
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resource_handler.setResourceBase("DATA/HTDOCS");
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HandlerList handlers = new HandlerList();
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handlers.setHandlers(new Handler[] { new TemplateHandler(), resource_handler, new DefaultHandler() });
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server.setHandler(handlers);
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server.start();
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server.join();
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}
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/**
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* just for testing and debugging
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*/
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public static void main(String[] args) throws Exception {
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runHttpServer(8080);
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}
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}
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package net.yacy.http;
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import java.io.File;
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import java.io.IOException;
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import java.lang.ref.SoftReference;
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import java.lang.reflect.InvocationTargetException;
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import java.lang.reflect.Method;
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import java.util.Date;
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import java.util.concurrent.ConcurrentHashMap;
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import javax.servlet.ServletException;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import net.yacy.cora.protocol.RequestHeader;
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import net.yacy.kelondro.logging.Log;
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import org.eclipse.jetty.server.HttpConnection;
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import org.eclipse.jetty.server.Request;
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import org.eclipse.jetty.server.handler.AbstractHandler;
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import de.anomic.server.serverClassLoader;
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import de.anomic.server.serverObjects;
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import de.anomic.server.serverSwitch;
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import de.anomic.server.servletProperties;
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public class TemplateHandler extends AbstractHandler {
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private String htLocalePath = "DATA/LOCALE/htroot";
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private String htDefaultPath = "htroot";
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private String htDocsPath = "DATA/HTDOCS";
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private static final serverClassLoader provider = new serverClassLoader(/*this.getClass().getClassLoader()*/);
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boolean useTemplateCache = false;
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private ConcurrentHashMap<File, SoftReference<TemplateCacheEntry>> templateCache = null;
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private ConcurrentHashMap<File, SoftReference<Method>> templateMethodCache = null;
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@Override
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protected void doStart() throws Exception {
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super.doStart();
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// TODO create template cache
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templateCache = (useTemplateCache)? new ConcurrentHashMap<File, SoftReference<TemplateCacheEntry>>() : new ConcurrentHashMap<File, SoftReference<TemplateCacheEntry>>(0);
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templateMethodCache = (useTemplateCache) ? new ConcurrentHashMap<File, SoftReference<Method>>() : new ConcurrentHashMap<File, SoftReference<Method>>(0);
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}
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@Override
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protected void doStop() throws Exception {
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super.doStop();
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// TODO destroy template cache?
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}
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/** Returns a path to the localized or default file according to the parameter localeSelection
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* @param path relative from htroot
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* @param localeSelection language of localized file; locale.language from switchboard is used if localeSelection.equals("") */
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public File getLocalizedFile(final String path, final String localeSelection){
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if (!(localeSelection.equals("default"))) {
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final File localePath = new File(htLocalePath, localeSelection + '/' + path);
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if (localePath.exists()) return localePath; // avoid "NoSuchFile" troubles if the "localeSelection" is misspelled
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}
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File docsPath = new File(htDocsPath, path);
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if (docsPath.exists()) return docsPath;
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return new File(htDefaultPath, path);
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}
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private final File rewriteClassFile(final File template) {
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try {
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String f = template.getCanonicalPath();
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final int p = f.lastIndexOf('.');
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if (p < 0) return null;
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f = f.substring(0, p) + ".class";
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//System.out.println("constructed class path " + f);
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final File cf = new File(f);
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if (cf.exists()) return cf;
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return null;
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} catch (final IOException e) {
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return null;
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}
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}
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private final Method rewriteMethod(final File classFile) throws InvocationTargetException {
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Method m = null;
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// now make a class out of the stream
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try {
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if (useTemplateCache) {
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final SoftReference<Method> ref = templateMethodCache.get(classFile);
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if (ref != null) {
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m = ref.get();
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if (m == null) {
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templateMethodCache.remove(classFile);
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} else {
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return m;
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}
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}
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}
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final Class<?> c = provider.loadClass(classFile);
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final Class<?>[] params = new Class[] {
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RequestHeader.class,
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serverObjects.class,
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serverSwitch.class };
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m = c.getMethod("respond", params);
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if (useTemplateCache) {
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// storing the method into the cache
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final SoftReference<Method> ref = new SoftReference<Method>(m);
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templateMethodCache.put(classFile, ref);
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}
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} catch (final ClassNotFoundException e) {
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Log.logSevere("HTTPDFileHandler", "class " + classFile + " is missing:" + e.getMessage());
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throw new InvocationTargetException(e, "class " + classFile + " is missing:" + e.getMessage());
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} catch (final NoSuchMethodException e) {
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Log.logSevere("HTTPDFileHandler", "method 'respond' not found in class " + classFile + ": " + e.getMessage());
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throw new InvocationTargetException(e, "method 'respond' not found in class " + classFile + ": " + e.getMessage());
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}
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return m;
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}
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private final Object invokeServlet(final File targetClass, final HttpServletRequest request, final serverObjects args) throws IllegalArgumentException, IllegalAccessException, InvocationTargetException {
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return rewriteMethod(targetClass).invoke(null, new Object[] {request, args, null}); // add switchboard
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}
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@Override
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public void handle(String target, Request baseRequest, HttpServletRequest request,
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HttpServletResponse response) throws IOException, ServletException {
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String localeSelection = "default";
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File targetFile = getLocalizedFile(target, localeSelection);
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File targetClass = rewriteClassFile(new File(htDefaultPath, target));
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if ((targetClass != null)) {
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serverObjects args = new serverObjects(request.getParameterMap());
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Object tmp;
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try {
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tmp = invokeServlet(targetClass, request, args);
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} catch (InvocationTargetException e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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throw new ServletException();
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} catch (IllegalArgumentException e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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throw new ServletException();
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} catch (IllegalAccessException e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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throw new ServletException();
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}
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servletProperties templatePatterns = null;
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if (tmp == null) {
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// if no args given, then tp will be an empty Hashtable object (not null)
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templatePatterns = new servletProperties();
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} else if (tmp instanceof servletProperties) {
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templatePatterns = (servletProperties) tmp;
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} else {
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templatePatterns = new servletProperties((serverObjects) tmp);
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}
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response.setContentType("text/html");
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response.setStatus(HttpServletResponse.SC_OK);
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response.getWriter().println("<h1>Hello OneHandler</h1>");
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Request base_request = (request instanceof Request) ? (Request)request:HttpConnection.getCurrentConnection().getRequest();
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base_request.setHandled(true);
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}
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}
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protected final class TemplateCacheEntry {
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Date lastModified;
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byte[] content;
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}
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}
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