Java 类org.apache.http.impl.client.DefaultClientConnectionReuseStrategy 实例源码

public MattermostClient() {
    final PoolingHttpClientConnectionManager connManager = new PoolingHttpClientConnectionManager();
    connManager.setDefaultMaxPerRoute(5);
    connManager.setMaxTotal(5);

    client = HttpClients.custom()
            .setConnectionManager(connManager)
            .setConnectionManagerShared(true)
            .setConnectionReuseStrategy(DefaultClientConnectionReuseStrategy.INSTANCE)
            .build();
}

@SneakyThrows
public NioServer( int port, int workers ) {
    this.port = port;
    this.mapper.register( "/static/*", new NioClasspathResourceHandler( "/static", "/WEB-INF" ) );

    val ioReactorConfig = IOReactorConfig.custom().setIoThreadCount( workers ).build();
    val httpProcessor = HttpProcessorBuilder.create()
        .add( new ResponseDate() )
        .add( new ResponseServer( "OAP Server/1.0" ) )
        .add( new ResponseContent() )
        .add( new ResponseConnControl() )
        .build();

    SSLContext sslContext = getSslContext( port );


    server = ServerBootstrap.bootstrap()
        .setListenerPort( port )
        .setServerInfo( "OAP Server/1.0" )
        .setConnectionReuseStrategy( DefaultClientConnectionReuseStrategy.INSTANCE )
        .setHttpProcessor( httpProcessor )
        .setIOReactorConfig( ioReactorConfig )
        .setSslContext( sslContext )
        .setExceptionLogger( ex -> log.debug( ex.getMessage(), ex ) )
        .setHandlerMapper( mapper )
        .create();
}

/**
 * @param listener Log listener
 * @param prompt   Prompt for proxy credentials
 * @return Builder for HTTP client
 */
public HttpClientBuilder build(final TranscriptListener listener, final LoginCallback prompt) {
    final HttpClientBuilder configuration = HttpClients.custom();
    // Use HTTP Connect proxy implementation provided here instead of
    // relying on internal proxy support in socket factory
    final Proxy proxy = proxyFinder.find(host);
    switch(proxy.getType()) {
        case HTTP:
        case HTTPS:
            final HttpHost h = new HttpHost(proxy.getHostname(), proxy.getPort(), StringUtils.lowerCase(proxy.getType().name()));
            if(log.isInfoEnabled()) {
                log.info(String.format("Setup proxy %s", h));
            }
            configuration.setProxy(h);
            configuration.setProxyAuthenticationStrategy(new CallbackProxyAuthenticationStrategy(ProxyCredentialsStoreFactory.get(), host, prompt));
            break;
    }
    configuration.setUserAgent(new PreferencesUseragentProvider().get());
    final int timeout = preferences.getInteger("connection.timeout.seconds") * 1000;
    configuration.setDefaultSocketConfig(SocketConfig.custom()
        .setTcpNoDelay(true)
        .setSoTimeout(timeout)
        .build());
    configuration.setDefaultRequestConfig(this.createRequestConfig(timeout));
    final String encoding;
    if(null == host.getEncoding()) {
        encoding = preferences.getProperty("browser.charset.encoding");
    }
    else {
        encoding = host.getEncoding();
    }
    configuration.setDefaultConnectionConfig(ConnectionConfig.custom()
        .setBufferSize(preferences.getInteger("http.socket.buffer"))
        .setCharset(Charset.forName(encoding))
        .build());
    if(preferences.getBoolean("http.connections.reuse")) {
        configuration.setConnectionReuseStrategy(new DefaultClientConnectionReuseStrategy());
    }
    else {
        configuration.setConnectionReuseStrategy(new NoConnectionReuseStrategy());
    }
    configuration.setRetryHandler(new ExtendedHttpRequestRetryHandler(preferences.getInteger("http.connections.retry")));
    configuration.setServiceUnavailableRetryStrategy(new DisabledServiceUnavailableRetryStrategy());
    if(!preferences.getBoolean("http.compression.enable")) {
        configuration.disableContentCompression();
    }
    configuration.setRequestExecutor(new LoggingHttpRequestExecutor(listener));
    // Always register HTTP for possible use with proxy. Contains a number of protocol properties such as the
    // default port and the socket factory to be used to create the java.net.Socket instances for the given protocol
    configuration.setConnectionManager(this.createConnectionManager(this.createRegistry()));
    configuration.setDefaultAuthSchemeRegistry(RegistryBuilder.<AuthSchemeProvider>create()
        .register(AuthSchemes.BASIC, new BasicSchemeFactory(
            Charset.forName(preferences.getProperty("http.credentials.charset"))))
        .register(AuthSchemes.DIGEST, new DigestSchemeFactory(
            Charset.forName(preferences.getProperty("http.credentials.charset"))))
        .register(AuthSchemes.NTLM, new NTLMSchemeFactory())
        .register(AuthSchemes.SPNEGO, new SPNegoSchemeFactory())
        .register(AuthSchemes.KERBEROS, new KerberosSchemeFactory()).build());
    return configuration;
}