Examples of org.apache.http.ConnectionReuseStrategy

org.apache.http.ConnectionReuseStrategy
Interface for deciding whether a connection should be kept alive. @author Oleg Kalnichevski @version $Revision: 496070 $ @since 4.0

    }


    @Test
    public void testExecutionEntityEclosingRequestWithExpectContinue() throws Exception {
        final HttpProcessor httprocessor = Mockito.mock(HttpProcessor.class);
        final ConnectionReuseStrategy connReuseStrategy = Mockito.mock(ConnectionReuseStrategy.class);
        final HttpResponseFactory responseFactory = Mockito.mock(HttpResponseFactory.class);
        final HttpRequestHandlerMapper handlerResolver = Mockito.mock(HttpRequestHandlerMapper.class);


        final HttpService httpservice = new HttpService(
                httprocessor,
                connReuseStrategy,
                responseFactory,
                handlerResolver);
        final HttpCoreContext context = HttpCoreContext.create();
        final HttpServerConnection conn = Mockito.mock(HttpServerConnection.class);
        final HttpEntityEnclosingRequest request = new BasicHttpEntityEnclosingRequest("POST", "/");
        request.addHeader(HTTP.EXPECT_DIRECTIVE, HTTP.EXPECT_CONTINUE);
        final InputStream instream = Mockito.mock(InputStream.class);
        final InputStreamEntity entity = new InputStreamEntity(instream, -1);
        request.setEntity(entity);


        Mockito.when(conn.receiveRequestHeader()).thenReturn(request);
        final HttpResponse resp100 = new BasicHttpResponse(HttpVersion.HTTP_1_1, 100, "Continue");
        Mockito.when(responseFactory.newHttpResponse(HttpVersion.HTTP_1_1, 100, context)).thenReturn(resp100);
        final HttpResponse response = new BasicHttpResponse(HttpVersion.HTTP_1_1, 200, "OK");
        Mockito.when(responseFactory.newHttpResponse(HttpVersion.HTTP_1_1, 200, context)).thenReturn(response);
        Mockito.when(connReuseStrategy.keepAlive(response, context)).thenReturn(Boolean.FALSE);


        httpservice.handleRequest(conn, context);


        Assert.assertEquals(HttpStatus.SC_NOT_IMPLEMENTED, response.getStatusLine().getStatusCode());

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    }


    @Test
    public void testExecutionEntityEclosingRequestCustomExpectationVerifier() throws Exception {
        final HttpProcessor httprocessor = Mockito.mock(HttpProcessor.class);
        final ConnectionReuseStrategy connReuseStrategy = Mockito.mock(ConnectionReuseStrategy.class);
        final HttpResponseFactory responseFactory = Mockito.mock(HttpResponseFactory.class);
        final HttpRequestHandlerMapper handlerResolver = Mockito.mock(HttpRequestHandlerMapper.class);


        final HttpExpectationVerifier expectationVerifier = new HttpExpectationVerifier() {


            @Override
            public void verify(
                    final HttpRequest request,
                    final HttpResponse response,
                    final HttpContext context) throws HttpException {
                response.setStatusCode(HttpStatus.SC_UNAUTHORIZED);
            }


        };


        final HttpService httpservice = new HttpService(
                httprocessor,
                connReuseStrategy,
                responseFactory,
                handlerResolver,
                expectationVerifier);
        final HttpCoreContext context = HttpCoreContext.create();
        final HttpServerConnection conn = Mockito.mock(HttpServerConnection.class);
        final HttpEntityEnclosingRequest request = new BasicHttpEntityEnclosingRequest("POST", "/");
        request.addHeader(HTTP.EXPECT_DIRECTIVE, HTTP.EXPECT_CONTINUE);
        final InputStream instream = Mockito.mock(InputStream.class);
        final InputStreamEntity entity = new InputStreamEntity(instream, -1);
        request.setEntity(entity);


        Mockito.when(conn.receiveRequestHeader()).thenReturn(request);
        final HttpResponse response = new BasicHttpResponse(HttpVersion.HTTP_1_1, 100, "Continue");
        Mockito.when(responseFactory.newHttpResponse(HttpVersion.HTTP_1_1, 100, context)).thenReturn(response);
        Mockito.when(connReuseStrategy.keepAlive(response, context)).thenReturn(Boolean.FALSE);


        httpservice.handleRequest(conn, context);


        Assert.assertSame(conn, context.getConnection());
        Assert.assertSame(request, context.getRequest());

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    }


    @Test
    public void testExecutionExceptionInCustomExpectationVerifier() throws Exception {
        final HttpProcessor httprocessor = Mockito.mock(HttpProcessor.class);
        final ConnectionReuseStrategy connReuseStrategy = Mockito.mock(ConnectionReuseStrategy.class);
        final HttpResponseFactory responseFactory = Mockito.mock(HttpResponseFactory.class);
        final HttpExpectationVerifier expectationVerifier = Mockito.mock(HttpExpectationVerifier.class);
        final HttpRequestHandlerMapper handlerResolver = Mockito.mock(HttpRequestHandlerMapper.class);


        final HttpService httpservice = new HttpService(
                httprocessor,
                connReuseStrategy,
                responseFactory,
                handlerResolver,
                expectationVerifier);
        final HttpCoreContext context = HttpCoreContext.create();
        final HttpServerConnection conn = Mockito.mock(HttpServerConnection.class);
        final HttpEntityEnclosingRequest request = new BasicHttpEntityEnclosingRequest("POST", "/");
        request.addHeader(HTTP.EXPECT_DIRECTIVE, HTTP.EXPECT_CONTINUE);
        final InputStream instream = Mockito.mock(InputStream.class);
        final InputStreamEntity entity = new InputStreamEntity(instream, -1);
        request.setEntity(entity);


        Mockito.when(conn.receiveRequestHeader()).thenReturn(request);
        final HttpResponse resp100 = new BasicHttpResponse(HttpVersion.HTTP_1_1, 100, "Continue");
        Mockito.when(responseFactory.newHttpResponse(HttpVersion.HTTP_1_1, 100, context)).thenReturn(resp100);
        final HttpResponse response = new BasicHttpResponse(HttpVersion.HTTP_1_0, 500, "Oppsie");
        Mockito.when(responseFactory.newHttpResponse(HttpVersion.HTTP_1_0, 500, context)).thenReturn(response);
        Mockito.doThrow(new HttpException("Oopsie")).when(expectationVerifier).verify(request, resp100, context);
        Mockito.when(connReuseStrategy.keepAlive(response, context)).thenReturn(Boolean.FALSE);


        httpservice.handleRequest(conn, context);


        Assert.assertSame(conn, context.getConnection());
        Assert.assertSame(request, context.getRequest());

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    }


    @Test
    public void testMethodNotSupported() throws Exception {
        final HttpProcessor httprocessor = Mockito.mock(HttpProcessor.class);
        final ConnectionReuseStrategy connReuseStrategy = Mockito.mock(ConnectionReuseStrategy.class);
        final HttpResponseFactory responseFactory = Mockito.mock(HttpResponseFactory.class);
        final HttpRequestHandlerMapper handlerResolver = Mockito.mock(HttpRequestHandlerMapper.class);
        final HttpRequestHandler requestHandler = Mockito.mock(HttpRequestHandler.class);


        final HttpService httpservice = new HttpService(
                httprocessor,
                connReuseStrategy,
                responseFactory,
                handlerResolver);
        final HttpCoreContext context = HttpCoreContext.create();
        final HttpServerConnection conn = Mockito.mock(HttpServerConnection.class);
        final HttpRequest request = new BasicHttpRequest("whatever", "/");


        Mockito.when(conn.receiveRequestHeader()).thenReturn(request);
        final HttpResponse response = new BasicHttpResponse(HttpVersion.HTTP_1_1, 200, "OK");
        Mockito.when(responseFactory.newHttpResponse(HttpVersion.HTTP_1_1, 200, context)).thenReturn(response);
        final HttpResponse error = new BasicHttpResponse(HttpVersion.HTTP_1_0, 500, "Oppsie");
        Mockito.when(responseFactory.newHttpResponse(HttpVersion.HTTP_1_0, 500, context)).thenReturn(error);
        Mockito.when(handlerResolver.lookup(request)).thenReturn(requestHandler);
        Mockito.doThrow(new MethodNotSupportedException("whatever")).when(
                requestHandler).handle(request, response, context);
        Mockito.when(connReuseStrategy.keepAlive(error, context)).thenReturn(Boolean.FALSE);


        httpservice.handleRequest(conn, context);


        Assert.assertSame(conn, context.getConnection());
        Assert.assertSame(request, context.getRequest());

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    }


    @Test
    public void testUnsupportedHttpVersionException() throws Exception {
        final HttpProcessor httprocessor = Mockito.mock(HttpProcessor.class);
        final ConnectionReuseStrategy connReuseStrategy = Mockito.mock(ConnectionReuseStrategy.class);
        final HttpResponseFactory responseFactory = Mockito.mock(HttpResponseFactory.class);
        final HttpRequestHandlerMapper handlerResolver = Mockito.mock(HttpRequestHandlerMapper.class);
        final HttpRequestHandler requestHandler = Mockito.mock(HttpRequestHandler.class);


        final HttpService httpservice = new HttpService(
                httprocessor,
                connReuseStrategy,
                responseFactory,
                handlerResolver);
        final HttpCoreContext context = HttpCoreContext.create();
        final HttpServerConnection conn = Mockito.mock(HttpServerConnection.class);
        final HttpRequest request = new BasicHttpRequest("whatever", "/");


        Mockito.when(conn.receiveRequestHeader()).thenReturn(request);
        final HttpResponse response = new BasicHttpResponse(HttpVersion.HTTP_1_1, 200, "OK");
        Mockito.when(responseFactory.newHttpResponse(HttpVersion.HTTP_1_1, 200, context)).thenReturn(response);
        final HttpResponse error = new BasicHttpResponse(HttpVersion.HTTP_1_0, 500, "Oppsie");
        Mockito.when(responseFactory.newHttpResponse(HttpVersion.HTTP_1_0, 500, context)).thenReturn(error);
        Mockito.when(handlerResolver.lookup(request)).thenReturn(requestHandler);
        Mockito.doThrow(new UnsupportedHttpVersionException()).when(
                requestHandler).handle(request, response, context);
        Mockito.when(connReuseStrategy.keepAlive(error, context)).thenReturn(Boolean.FALSE);


        httpservice.handleRequest(conn, context);


        Assert.assertSame(conn, context.getConnection());
        Assert.assertSame(request, context.getRequest());

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    }


    @Test
    public void testProtocolException() throws Exception {
        final HttpProcessor httprocessor = Mockito.mock(HttpProcessor.class);
        final ConnectionReuseStrategy connReuseStrategy = Mockito.mock(ConnectionReuseStrategy.class);
        final HttpResponseFactory responseFactory = Mockito.mock(HttpResponseFactory.class);
        final HttpRequestHandlerMapper handlerResolver = Mockito.mock(HttpRequestHandlerMapper.class);
        final HttpRequestHandler requestHandler = Mockito.mock(HttpRequestHandler.class);


        final HttpService httpservice = new HttpService(
                httprocessor,
                connReuseStrategy,
                responseFactory,
                handlerResolver);
        final HttpCoreContext context = HttpCoreContext.create();
        final HttpServerConnection conn = Mockito.mock(HttpServerConnection.class);
        final HttpRequest request = new BasicHttpRequest("whatever", "/");


        Mockito.when(conn.receiveRequestHeader()).thenReturn(request);
        final HttpResponse response = new BasicHttpResponse(HttpVersion.HTTP_1_1, 200, "OK");
        Mockito.when(responseFactory.newHttpResponse(HttpVersion.HTTP_1_1, 200, context)).thenReturn(response);
        final HttpResponse error = new BasicHttpResponse(HttpVersion.HTTP_1_0, 500, "Oppsie");
        Mockito.when(responseFactory.newHttpResponse(HttpVersion.HTTP_1_0, 500, context)).thenReturn(error);
        Mockito.when(handlerResolver.lookup(request)).thenReturn(requestHandler);
        Mockito.doThrow(new ProtocolException("oh, this world is wrong")).when(
                requestHandler).handle(request, response, context);
        Mockito.when(connReuseStrategy.keepAlive(error, context)).thenReturn(Boolean.FALSE);


        httpservice.handleRequest(conn, context);


        Assert.assertSame(conn, context.getConnection());
        Assert.assertSame(request, context.getRequest());

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    }


    @Test
    public void testConnectionKeepAlive() throws Exception {
        final HttpProcessor httprocessor = Mockito.mock(HttpProcessor.class);
        final ConnectionReuseStrategy connReuseStrategy = Mockito.mock(ConnectionReuseStrategy.class);
        final HttpResponseFactory responseFactory = Mockito.mock(HttpResponseFactory.class);
        final HttpRequestHandlerMapper handlerResolver = Mockito.mock(HttpRequestHandlerMapper.class);
        final HttpRequestHandler requestHandler = Mockito.mock(HttpRequestHandler.class);


        final HttpService httpservice = new HttpService(
                httprocessor,
                connReuseStrategy,
                responseFactory,
                handlerResolver);
        final HttpCoreContext context = HttpCoreContext.create();
        final HttpServerConnection conn = Mockito.mock(HttpServerConnection.class);
        final HttpRequest request = new BasicHttpRequest("GET", "/");
        Mockito.when(conn.receiveRequestHeader()).thenReturn(request);
        final HttpResponse response = new BasicHttpResponse(HttpVersion.HTTP_1_1, 200, "OK");
        Mockito.when(responseFactory.newHttpResponse(HttpVersion.HTTP_1_1, 200, context)).thenReturn(response);
        Mockito.when(handlerResolver.lookup(request)).thenReturn(requestHandler);
        Mockito.when(connReuseStrategy.keepAlive(response, context)).thenReturn(Boolean.TRUE);


        httpservice.handleRequest(conn, context);


        Assert.assertEquals(HttpStatus.SC_OK, response.getStatusLine().getStatusCode());

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                }
            }
            handlerMapperCopy = reqistry;
        }


        ConnectionReuseStrategy connStrategyCopy = this.connStrategy;
        if (connStrategyCopy == null) {
            connStrategyCopy = DefaultConnectionReuseStrategy.INSTANCE;
        }


        HttpResponseFactory responseFactoryCopy = this.responseFactory;

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                }
            }
            handlerMapperCopy = reqistry;
        }


        ConnectionReuseStrategy connStrategyCopy = this.connStrategy;
        if (connStrategyCopy == null) {
            connStrategyCopy = DefaultConnectionReuseStrategy.INSTANCE;
        }


        HttpResponseFactory responseFactoryCopy = this.responseFactory;

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        HttpContext context = new BasicHttpContext(null);
        HttpHost host = new HttpHost("localhost", 8080);


        DefaultHttpClientConnection conn = new DefaultHttpClientConnection();
        ConnectionReuseStrategy connStrategy = new DefaultConnectionReuseStrategy();


        context.setAttribute(ExecutionContext.HTTP_CONNECTION, conn);
        context.setAttribute(ExecutionContext.HTTP_TARGET_HOST, host);


        try {
            
            String[] targets = {
                    "/",
                    "/servlets-examples/servlet/RequestInfoExample", 
                    "/somewhere%20in%20pampa"};
            
            for (int i = 0; i < targets.length; i++) {
                if (!conn.isOpen()) {
                    Socket socket = new Socket(host.getHostName(), host.getPort());
                    conn.bind(socket, params);
                }
                BasicHttpRequest request = new BasicHttpRequest("GET", targets[i]);
                System.out.println(">> Request URI: " + request.getRequestLine().getUri());
                
                context.setAttribute(ExecutionContext.HTTP_REQUEST, request);
                request.setParams(params);
                httpexecutor.preProcess(request, httpproc, context);
                HttpResponse response = httpexecutor.execute(request, conn, context);
                httpexecutor.postProcess(response, httpproc, context);
                
                System.out.println("<< Response: " + response.getStatusLine());
                System.out.println(EntityUtils.toString(response.getEntity()));
                System.out.println("==============");
                if (!connStrategy.keepAlive(response, context)) {
                    conn.close();
                } else {
                    System.out.println("Connection kept alive...");
                }
            }

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