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-rw-r--r-- | src/jaegertracing/thrift/tutorial/js/src/Httpd.java | 299 |
1 files changed, 299 insertions, 0 deletions
diff --git a/src/jaegertracing/thrift/tutorial/js/src/Httpd.java b/src/jaegertracing/thrift/tutorial/js/src/Httpd.java new file mode 100644 index 000000000..4985471a7 --- /dev/null +++ b/src/jaegertracing/thrift/tutorial/js/src/Httpd.java @@ -0,0 +1,299 @@ +/* + * ==================================================================== + * 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. + * ==================================================================== + * + * This software consists of voluntary contributions made by many + * individuals on behalf of the Apache Software Foundation. For more + * information on the Apache Software Foundation, please see + * <http://www.apache.org/>. + * + */ + +import java.io.File; +import java.io.IOException; +import java.io.InterruptedIOException; +import java.io.OutputStream; +import java.io.OutputStreamWriter; +import java.net.ServerSocket; +import java.net.Socket; +import java.net.URLDecoder; +import java.util.Locale; + +import org.apache.http.ConnectionClosedException; +import org.apache.http.HttpEntity; +import org.apache.http.HttpEntityEnclosingRequest; +import org.apache.http.HttpException; +import org.apache.http.HttpRequest; +import org.apache.http.HttpResponse; +import org.apache.http.HttpServerConnection; +import org.apache.http.HttpStatus; +import org.apache.http.MethodNotSupportedException; +import org.apache.http.entity.ContentProducer; +import org.apache.http.entity.EntityTemplate; +import org.apache.http.entity.FileEntity; +import org.apache.http.impl.DefaultHttpResponseFactory; +import org.apache.http.impl.DefaultHttpServerConnection; +import org.apache.http.impl.NoConnectionReuseStrategy; +import org.apache.http.params.BasicHttpParams; +import org.apache.http.params.CoreConnectionPNames; +import org.apache.http.params.CoreProtocolPNames; +import org.apache.http.params.HttpParams; +import org.apache.http.protocol.BasicHttpContext; +import org.apache.http.protocol.BasicHttpProcessor; +import org.apache.http.protocol.HttpContext; +import org.apache.http.protocol.HttpProcessor; +import org.apache.http.protocol.HttpRequestHandler; +import org.apache.http.protocol.HttpRequestHandlerRegistry; +import org.apache.http.protocol.HttpService; +import org.apache.http.util.EntityUtils; +import org.apache.thrift.TProcessor; +import org.apache.thrift.protocol.TJSONProtocol; +import org.apache.thrift.protocol.TProtocol; +import org.apache.thrift.transport.TMemoryBuffer; + +// Generated code +import tutorial.*; +import shared.*; + +import java.util.HashMap; + +/** + * Basic, yet fully functional and spec compliant, HTTP/1.1 file server. + * <p> + * Please note the purpose of this application is demonstrate the usage of + * HttpCore APIs. It is NOT intended to demonstrate the most efficient way of + * building an HTTP file server. + * + * + */ +public class Httpd { + + public static void main(String[] args) throws Exception { + if (args.length < 1) { + System.err.println("Please specify document root directory"); + System.exit(1); + } + Thread t = new RequestListenerThread(8088, args[0]); + t.setDaemon(false); + t.start(); + } + + static class HttpFileHandler implements HttpRequestHandler { + + private final String docRoot; + + public HttpFileHandler(final String docRoot) { + super(); + this.docRoot = docRoot; + } + + public void handle(final HttpRequest request, final HttpResponse response, final HttpContext context) throws HttpException, IOException { + + String method = request.getRequestLine().getMethod().toUpperCase(Locale.ENGLISH); + if (!method.equals("GET") && !method.equals("HEAD") && !method.equals("POST")) { + throw new MethodNotSupportedException(method + " method not supported"); + } + String target = request.getRequestLine().getUri(); + + if (request instanceof HttpEntityEnclosingRequest && target.equals("/thrift/service/tutorial/")) { + HttpEntity entity = ((HttpEntityEnclosingRequest) request).getEntity(); + byte[] entityContent = EntityUtils.toByteArray(entity); + System.out.println("Incoming content: " + new String(entityContent)); + + final String output = this.thriftRequest(entityContent); + + System.out.println("Outgoing content: "+output); + + EntityTemplate body = new EntityTemplate(new ContentProducer() { + + public void writeTo(final OutputStream outstream) throws IOException { + OutputStreamWriter writer = new OutputStreamWriter(outstream, "UTF-8"); + writer.write(output); + writer.flush(); + } + + }); + body.setContentType("text/html; charset=UTF-8"); + response.setEntity(body); + } else { + final File file = new File(this.docRoot, URLDecoder.decode(target, "UTF-8")); + if (!file.exists()) { + + response.setStatusCode(HttpStatus.SC_NOT_FOUND); + EntityTemplate body = new EntityTemplate(new ContentProducer() { + + public void writeTo(final OutputStream outstream) throws IOException { + OutputStreamWriter writer = new OutputStreamWriter(outstream, "UTF-8"); + writer.write("<html><body><h1>"); + writer.write("File "); + writer.write(file.getPath()); + writer.write(" not found"); + writer.write("</h1></body></html>"); + writer.flush(); + } + + }); + body.setContentType("text/html; charset=UTF-8"); + response.setEntity(body); + System.out.println("File " + file.getPath() + " not found"); + + } else if (!file.canRead() || file.isDirectory()) { + + response.setStatusCode(HttpStatus.SC_FORBIDDEN); + EntityTemplate body = new EntityTemplate(new ContentProducer() { + + public void writeTo(final OutputStream outstream) throws IOException { + OutputStreamWriter writer = new OutputStreamWriter(outstream, "UTF-8"); + writer.write("<html><body><h1>"); + writer.write("Access denied"); + writer.write("</h1></body></html>"); + writer.flush(); + } + + }); + body.setContentType("text/html; charset=UTF-8"); + response.setEntity(body); + System.out.println("Cannot read file " + file.getPath()); + + } else { + + response.setStatusCode(HttpStatus.SC_OK); + FileEntity body = new FileEntity(file, "text/html"); + response.setEntity(body); + System.out.println("Serving file " + file.getPath()); + + } + } + } + + private String thriftRequest(byte[] input){ + try{ + + //Input + TMemoryBuffer inbuffer = new TMemoryBuffer(input.length); + inbuffer.write(input); + TProtocol inprotocol = new TJSONProtocol(inbuffer); + + //Output + TMemoryBuffer outbuffer = new TMemoryBuffer(100); + TProtocol outprotocol = new TJSONProtocol(outbuffer); + + TProcessor processor = new Calculator.Processor(new CalculatorHandler()); + processor.process(inprotocol, outprotocol); + + byte[] output = new byte[outbuffer.length()]; + outbuffer.readAll(output, 0, output.length); + + return new String(output,"UTF-8"); + }catch(Throwable t){ + return "Error:"+t.getMessage(); + } + + + } + + } + + static class RequestListenerThread extends Thread { + + private final ServerSocket serversocket; + private final HttpParams params; + private final HttpService httpService; + + public RequestListenerThread(int port, final String docroot) throws IOException { + this.serversocket = new ServerSocket(port); + this.params = new BasicHttpParams(); + this.params.setIntParameter(CoreConnectionPNames.SO_TIMEOUT, 1000).setIntParameter(CoreConnectionPNames.SOCKET_BUFFER_SIZE, 8 * 1024) + .setBooleanParameter(CoreConnectionPNames.STALE_CONNECTION_CHECK, false).setBooleanParameter(CoreConnectionPNames.TCP_NODELAY, true) + .setParameter(CoreProtocolPNames.ORIGIN_SERVER, "HttpComponents/1.1"); + + // Set up the HTTP protocol processor + HttpProcessor httpproc = new BasicHttpProcessor(); + + // Set up request handlers + HttpRequestHandlerRegistry reqistry = new HttpRequestHandlerRegistry(); + reqistry.register("*", new HttpFileHandler(docroot)); + + // Set up the HTTP service + this.httpService = new HttpService(httpproc, new NoConnectionReuseStrategy(), new DefaultHttpResponseFactory()); + this.httpService.setParams(this.params); + this.httpService.setHandlerResolver(reqistry); + } + + public void run() { + System.out.println("Listening on port " + this.serversocket.getLocalPort()); + System.out.println("Point your browser to http://localhost:8088/tutorial/js/tutorial.html"); + + while (!Thread.interrupted()) { + try { + // Set up HTTP connection + Socket socket = this.serversocket.accept(); + DefaultHttpServerConnection conn = new DefaultHttpServerConnection(); + System.out.println("Incoming connection from " + socket.getInetAddress()); + conn.bind(socket, this.params); + + // Start worker thread + Thread t = new WorkerThread(this.httpService, conn); + t.setDaemon(true); + t.start(); + } catch (InterruptedIOException ex) { + break; + } catch (IOException e) { + System.err.println("I/O error initialising connection thread: " + e.getMessage()); + break; + } + } + } + } + + static class WorkerThread extends Thread { + + private final HttpService httpservice; + private final HttpServerConnection conn; + + public WorkerThread(final HttpService httpservice, final HttpServerConnection conn) { + super(); + this.httpservice = httpservice; + this.conn = conn; + } + + public void run() { + System.out.println("New connection thread"); + HttpContext context = new BasicHttpContext(null); + try { + while (!Thread.interrupted() && this.conn.isOpen()) { + this.httpservice.handleRequest(this.conn, context); + } + } catch (ConnectionClosedException ex) { + System.err.println("Client closed connection"); + } catch (IOException ex) { + System.err.println("I/O error: " + ex.getMessage()); + } catch (HttpException ex) { + System.err.println("Unrecoverable HTTP protocol violation: " + ex.getMessage()); + } finally { + try { + this.conn.shutdown(); + } catch (IOException ignore) { + } + } + } + + } + +} |