Example usage for org.apache.http.impl.client DefaultHttpRequestRetryHandler DefaultHttpRequestRetryHandler

Introduction

In this page you can find the example usage for org.apache.http.impl.client DefaultHttpRequestRetryHandler DefaultHttpRequestRetryHandler.

Prototype

@SuppressWarnings("unchecked")
public DefaultHttpRequestRetryHandler(final int retryCount, final boolean requestSentRetryEnabled)

Source Link

Document

Create the request retry handler using the following list of non-retriable IOException classes:

InterruptedIOException
UnknownHostException
ConnectException
SSLException

Usage

From source file:org.flowable.http.impl.HttpActivityBehaviorImpl.java

public HttpActivityBehaviorImpl() {
    HttpClientConfig config = CommandContextUtil.getProcessEngineConfiguration().getHttpClientConfig();
    HttpClientBuilder httpClientBuilder = HttpClientBuilder.create();

    // https settings
    if (config.isDisableCertVerify()) {
        try {//from  w  w w .j a  v  a2  s.c o m
            SSLContextBuilder builder = new SSLContextBuilder();
            builder.loadTrustMaterial(null, new TrustSelfSignedStrategy());
            httpClientBuilder.setSSLSocketFactory(
                    new SSLConnectionSocketFactory(builder.build(), new HostnameVerifier() {
                        public boolean verify(String s, SSLSession sslSession) {
                            return true;
                        }
                    }));

        } catch (Exception e) {
            LOGGER.error("Could not configure HTTP client SSL self signed strategy", e);
        }
    }

    // request retry settings
    int retryCount = 0;
    if (config.getRequestRetryLimit() > 0) {
        retryCount = config.getRequestRetryLimit();
    }
    httpClientBuilder.setRetryHandler(new DefaultHttpRequestRetryHandler(retryCount, false));

    // Build http client
    client = httpClientBuilder.build();
    LOGGER.info("HTTP client is initialized");

    // Shutdown hook to close the http client
    Runtime.getRuntime().addShutdownHook(new Thread() {
        @Override
        public void run() {
            if (client != null) {
                try {
                    client.close();
                    LOGGER.info("HTTP client is closed");
                } catch (Throwable e) {
                    LOGGER.error("Could not close http client", e);
                }
            }
        }
    });
}

From source file:org.hyperic.hq.hqapi1.HQConnection.java

private <T> T runMethod(HttpRequestBase method, String uri, ResponseHandler<T> responseHandler)
        throws IOException {
    String protocol = _isSecure ? "https" : "http";
    ServiceError error;/*from   w ww  . ja  va2s  . c  om*/
    URL url = new URL(protocol, _host, _port, uri);

    try {
        method.setURI(url.toURI());
    } catch (URISyntaxException e) {
        throw new IllegalArgumentException("The syntax of request url [" + uri + "] is invalid", e);
    }

    _log.debug("Setting URI: " + url.toString());

    DefaultHttpClient client = new DefaultHttpClient();

    if (_isSecure) {
        // To allow for self signed certificates
        configureSSL(client);
    }

    // Validate user & password inputs
    if (_user == null || _user.length() == 0) {
        error = new ServiceError();
        error.setErrorCode("LoginFailure");
        error.setReasonText("User name cannot be null or empty");

        return responseHandler.getErrorResponse(error);
    }

    if (_password == null || _password.length() == 0) {
        error = new ServiceError();
        error.setErrorCode("LoginFailure");
        error.setReasonText("Password cannot be null or empty");

        return responseHandler.getErrorResponse(error);
    }

    // Set Basic auth creds
    UsernamePasswordCredentials defaultcreds = new UsernamePasswordCredentials(_user, _password);

    client.getCredentialsProvider().setCredentials(AuthScope.ANY, defaultcreds);

    // Preemptive authentication
    AuthCache authCache = new BasicAuthCache();
    BasicScheme basicAuth = new BasicScheme();
    HttpHost host = new HttpHost(_host, _port, protocol);

    authCache.put(host, basicAuth);

    BasicHttpContext localContext = new BasicHttpContext();
    localContext.setAttribute(ClientContext.AUTH_CACHE, authCache);

    method.getParams().setParameter(ClientPNames.HANDLE_AUTHENTICATION, true);

    // Disable re-tries
    client.setHttpRequestRetryHandler(new DefaultHttpRequestRetryHandler(0, true));

    HttpResponse response = client.execute(method, localContext);

    return responseHandler.handleResponse(response);
}