| /* Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.tomcat.lite.http; |
| |
| import java.io.IOException; |
| import java.util.concurrent.Executor; |
| import java.util.concurrent.Executors; |
| import java.util.logging.Logger; |
| |
| import org.apache.tomcat.lite.http.HttpChannel.HttpService; |
| import org.apache.tomcat.lite.http.HttpChannel.RequestCompleted; |
| import org.apache.tomcat.lite.io.CBuffer; |
| import org.apache.tomcat.lite.io.FileConnector; |
| |
| /** |
| * This class has several functions: |
| * - maps the request to another HttpService |
| * - decide if the request should be run in the selector thread |
| * or in a thread pool |
| * - finalizes the request ( close / flush ) |
| * - detects if the request is complete or set callbacks |
| * for receive/flush/done. |
| * |
| */ |
| public class Dispatcher implements HttpService { |
| |
| private BaseMapper mapper; |
| static boolean debug = false; |
| static Logger log = Logger.getLogger("Mapper"); |
| Executor tp = Executors.newCachedThreadPool(); |
| |
| public Dispatcher() { |
| init(); |
| } |
| |
| protected void init() { |
| mapper = new BaseMapper(); |
| } |
| |
| public void runService(HttpChannel ch) { |
| runService(ch, true); |
| } |
| |
| public void runService(HttpChannel ch, boolean recycle) { |
| MappingData mapRes = ch.getRequest().getMappingData(); |
| HttpService h = (HttpService) mapRes.getServiceObject(); |
| try { |
| h.service(ch.getRequest(), ch.getResponse()); |
| if (!ch.getRequest().isAsyncStarted()) { |
| ch.complete(); |
| if (recycle) { |
| ch.release(); // recycle objects. |
| } |
| } else { |
| // Nothing - complete must be called when done. |
| } |
| } catch (IOException e) { |
| e.printStackTrace(); |
| } catch( Throwable t ) { |
| t.printStackTrace(); |
| } |
| } |
| |
| @Override |
| public void service(HttpRequest httpReq, HttpResponse httpRes) throws IOException { |
| service(httpReq, httpRes, false, true); |
| } |
| |
| /** |
| * Process the request/response in the current thread, without |
| * release ( recycle ) at the end. |
| * |
| * For use by tests and/or in-memory running of servlets. |
| * |
| * If no connection is associated with the request - the |
| * output will remain in the out buffer. |
| */ |
| public void run(HttpRequest httpReq, HttpResponse httpRes) throws IOException { |
| service(httpReq, httpRes, true, false); |
| } |
| |
| |
| public void service(HttpRequest httpReq, HttpResponse httpRes, boolean noThread, boolean recycle) |
| throws IOException { |
| long t0 = System.currentTimeMillis(); |
| HttpChannel http = httpReq.getHttpChannel(); |
| |
| http.setCompletedCallback(doneCallback); |
| |
| try { |
| // compute decodedURI - not done by connector |
| MappingData mapRes = httpReq.getMappingData(); |
| mapRes.recycle(); |
| |
| mapper.map(httpReq.serverName(), |
| httpReq.decodedURI(), mapRes); |
| |
| HttpService h = (HttpService) mapRes.getServiceObject(); |
| |
| if (h != null) { |
| if (debug) { |
| log.info(">>>>>>>> START: " + http.getRequest().method() + " " + |
| http.getRequest().decodedURI() + " " + |
| h.getClass().getSimpleName()); |
| } |
| |
| if (mapRes.service.selectorThread || noThread) { |
| runService(http, recycle); |
| } else { |
| tp.execute(httpReq.getHttpChannel().dispatcherRunnable); |
| } |
| |
| } else { |
| httpRes.setStatus(404); |
| http.complete(); |
| } |
| |
| } catch (IOException ex) { |
| if ("Broken pipe".equals(ex.getMessage())) { |
| log.warning("Connection interrupted while writting"); |
| } |
| throw ex; |
| } catch( Throwable t ) { |
| t.printStackTrace(); |
| httpRes.setStatus(500); |
| http.abort(t); |
| } |
| } |
| |
| private RequestCompleted doneCallback = new RequestCompleted() { |
| @Override |
| public void handle(HttpChannel client, Object extraData) throws IOException { |
| if (debug) { |
| log.info("<<<<<<<< DONE: " + client.getRequest().method() + " " + |
| client.getRequest().decodedURI() + " " + |
| client.getResponse().getStatus() + " " |
| ); |
| } |
| } |
| }; |
| |
| public BaseMapper.Context addContext(String hostname, String ctxPath, |
| Object ctx, String[] welcomeResources, FileConnector resources, |
| HttpService ctxService) { |
| return mapper.addContext(hostname, ctxPath, ctx, welcomeResources, resources, |
| ctxService); |
| } |
| |
| public BaseMapper.Context addContext(String ctxPath) { |
| return mapper.addContext(null, ctxPath, null, null, null, |
| null); |
| } |
| |
| public void map(CBuffer hostMB, CBuffer urlMB, MappingData md) { |
| try { |
| mapper.map(hostMB, urlMB, md); |
| } catch (Exception e) { |
| // TODO Auto-generated catch block |
| e.printStackTrace(); |
| } |
| } |
| |
| public void map(BaseMapper.Context ctx, |
| CBuffer uri, MappingData md) { |
| try { |
| mapper.internalMapWrapper(ctx, uri, md); |
| } catch (Exception e) { |
| // TODO Auto-generated catch block |
| e.printStackTrace(); |
| } |
| } |
| |
| public void addWrapper(BaseMapper.Context ctx, String path, |
| HttpService service) { |
| mapper.addWrapper(ctx, path, service); |
| } |
| |
| |
| public void setDefaultService(HttpService service) { |
| BaseMapper.Context mCtx = |
| mapper.addContext(null, "/", null, null, null, null); |
| mapper.addWrapper(mCtx, "/", service); |
| } |
| |
| |
| } |