Example usage for org.apache.http.client HttpRequestRetryHandler retryRequest

Introduction

In this page you can find the example usage for org.apache.http.client HttpRequestRetryHandler retryRequest.

Prototype

boolean retryRequest(IOException exception, int executionCount, HttpContext context);

Source Link

Document

Determines if a method should be retried after an IOException occurs during execution.

Usage

From source file:cn.rongcloud.im.server.network.http.AsyncHttpRequest.java

private void makeRequestWithRetries() throws IOException {
    boolean retry = true;
    IOException cause = null;/* www  .  j a va 2s. co m*/
    HttpRequestRetryHandler retryHandler = client.getHttpRequestRetryHandler();
    try {
        while (retry) {
            try {
                makeRequest();
                return;
            } catch (UnknownHostException e) {
                // switching between WI-FI and mobile data networks can cause a retry which then results in an UnknownHostException
                // while the WI-FI is initialising. The retry logic will be invoked here, if this is NOT the first retry
                // (to assist in genuine cases of unknown host) which seems better than outright failure
                cause = new IOException("UnknownHostException exception: " + e.getMessage());
                retry = (executionCount > 0) && retryHandler.retryRequest(cause, ++executionCount, context);
            } catch (NullPointerException e) {
                // there's a bug in HttpClient 4.0.x that on some occasions causes
                // DefaultRequestExecutor to throw an NPE, see
                // http://code.google.com/p/android/issues/detail?id=5255
                cause = new IOException("NPE in HttpClient: " + e.getMessage());
                retry = retryHandler.retryRequest(cause, ++executionCount, context);
            } catch (IOException e) {
                cause = e;
                retry = retryHandler.retryRequest(cause, ++executionCount, context);
            }
            if (retry && (responseHandler != null)) {
                responseHandler.sendRetryMessage();
            }
        }
    } catch (Exception e) {
        // catch anything else to ensure failure message is propagated
        Log.e("AsyncHttpRequest", "Unhandled exception origin cause", e);
        cause = new IOException("Unhandled exception: " + e.getMessage());
    }

    // cleaned up to throw IOException
    throw (cause);
}

---

From source file:com.ab.http.AsyncHttpRequest.java

/**
 * Make request with retries.//from   ww w  .  j a va2s.co  m
 *
 * @throws IOException Signals that an I/O exception has occurred.
 */
private void makeRequestWithRetries() throws IOException {
    boolean retry = true;
    IOException cause = null;
    HttpRequestRetryHandler retryHandler = client.getHttpRequestRetryHandler();
    try {
        while (retry) {
            try {
                makeRequest();
                return;
            } catch (UnknownHostException e) {
                // switching between WI-FI and mobile data networks can cause a retry which then results in an UnknownHostException
                // while the WI-FI is initialising. The retry logic will be invoked here, if this is NOT the first retry
                // (to assist in genuine cases of unknown host) which seems better than outright failure
                cause = new IOException("UnknownHostException exception: " + e.getMessage());
                retry = (executionCount > 0) && retryHandler.retryRequest(cause, ++executionCount, context);
            } catch (NullPointerException e) {
                // there's a bug in HttpClient 4.0.x that on some occasions causes
                // DefaultRequestExecutor to throw an NPE, see
                // http://code.google.com/p/android/issues/detail?id=5255
                cause = new IOException("NPE in HttpClient: " + e.getMessage());
                retry = retryHandler.retryRequest(cause, ++executionCount, context);
            } catch (IOException e) {
                cause = e;
                retry = retryHandler.retryRequest(cause, ++executionCount, context);
            }
            if (retry && (responseHandler != null)) {
                responseHandler.sendRetryMessage();
            }
        }
    } catch (Exception e) {
        // catch anything else to ensure failure message is propagated
        cause = new IOException("Unhandled exception: " + e.getMessage());
    }

    // cleaned up to throw IOException
    throw (cause);
}

---

From source file:com.dongfang.net.http.SyncHttpHandler.java

public ResponseStream sendRequest(HttpRequestBase request) throws HttpException {

    boolean retry = true;
    HttpRequestRetryHandler retryHandler = client.getHttpRequestRetryHandler();
    while (retry) {
        IOException exception = null;
        try {//from ww w. jav  a  2 s .  c om
            // ??
            // requestUrl = request.getURI().toString();
            // if (request.getMethod().equals(HttpRequest.HttpMethod.GET.toString())) {
            // String result = HttpUtils.sHttpGetCache.get(requestUrl);
            // if (result != null) {
            // return new ResponseStream(result);
            // }
            // }

            HttpResponse response = client.execute(request, context);
            return handleResponse(response);
        } catch (UnknownHostException e) {
            exception = e;
            retry = retryHandler.retryRequest(exception, ++retriedTimes, context);
        } catch (IOException e) {
            exception = e;
            retry = retryHandler.retryRequest(exception, ++retriedTimes, context);
        } catch (NullPointerException e) {
            exception = new IOException(e.getMessage());
            exception.initCause(e);
            retry = retryHandler.retryRequest(exception, ++retriedTimes, context);
        } catch (HttpException e) {
            throw e;
        } catch (Throwable e) {
            exception = new IOException(e.getMessage());
            exception.initCause(e);
            retry = retryHandler.retryRequest(exception, ++retriedTimes, context);
        }
        if (!retry && exception != null) {
            throw new HttpException(exception);
        }
    }
    return null;
}

---

From source file:cn.isif.util_plus.http.SyncHttpHandler.java

public ResponseStream sendRequest(HttpRequestBase request) throws HttpException {

    HttpRequestRetryHandler retryHandler = client.getHttpRequestRetryHandler();
    while (true) {
        boolean retry = true;
        IOException exception = null;
        try {/*  w w  w. j a  v a2  s.c o  m*/
            requestUrl = request.getURI().toString();
            requestMethod = request.getMethod();
            if (HttpUtils.sHttpCache.isEnabled(requestMethod)) {
                String result = HttpUtils.sHttpCache.get(requestUrl);
                if (result != null) {
                    return new ResponseStream(result);
                }
            }

            HttpResponse response = client.execute(request, context);
            return handleResponse(response);
        } catch (UnknownHostException e) {
            exception = e;
            retry = retryHandler.retryRequest(exception, ++retriedTimes, context);
        } catch (IOException e) {
            exception = e;
            retry = retryHandler.retryRequest(exception, ++retriedTimes, context);
        } catch (NullPointerException e) {
            exception = new IOException(e.getMessage());
            exception.initCause(e);
            retry = retryHandler.retryRequest(exception, ++retriedTimes, context);
        } catch (HttpException e) {
            throw e;
        } catch (Throwable e) {
            exception = new IOException(e.getMessage());
            exception.initCause(e);
            retry = retryHandler.retryRequest(exception, ++retriedTimes, context);
        }
        if (!retry) {
            throw new HttpException(exception);
        }
    }
}

---

From source file:com.android.yijiang.kzx.http.AsyncHttpRequest.java

private void makeRequestWithRetries() throws IOException {
    boolean retry = true;
    IOException cause = null;/*  ww  w  . ja v a2 s .  c o m*/
    HttpRequestRetryHandler retryHandler = client.getHttpRequestRetryHandler();
    try {
        while (retry) {
            try {
                makeRequest();
                return;
            } catch (UnknownHostException e) {
                // switching between WI-FI and mobile data networks can cause a retry which then results in an UnknownHostException
                // while the WI-FI is initialising. The retry logic will be invoked here, if this is NOT the first retry
                // (to assist in genuine cases of unknown host) which seems better than outright failure
                cause = new IOException("UnknownHostException exception: " + e.getMessage());
                retry = (executionCount > 0) && retryHandler.retryRequest(cause, ++executionCount, context);
            } catch (NullPointerException e) {
                // there's a bug in HttpClient 4.0.x that on some occasions causes
                // DefaultRequestExecutor to throw an NPE, see
                // http://code.google.com/p/android/issues/detail?id=5255
                cause = new IOException("NPE in HttpClient: " + e.getMessage());
                retry = retryHandler.retryRequest(cause, ++executionCount, context);
            } catch (IOException e) {
                if (isCancelled()) {
                    // Eating exception, as the request was cancelled
                    return;
                }
                cause = e;
                retry = retryHandler.retryRequest(cause, ++executionCount, context);
            }
            if (retry && (responseHandler != null)) {
                responseHandler.sendRetryMessage(executionCount);
            }
        }
    } catch (Exception e) {
        // catch anything else to ensure failure message is propagated
        Log.e("AsyncHttpRequest", "Unhandled exception origin cause", e);
        cause = new IOException("Unhandled exception: " + e.getMessage());
    }

    // cleaned up to throw IOException
    throw (cause);
}

---

From source file:com.wen.security.http.AsyncHttpRequest.java

private void makeRequestWithRetries() throws IOException {
    boolean retry = true;
    IOException cause = null;//from  ww w. ja  va  2  s. c o  m
    HttpRequestRetryHandler retryHandler = client.getHttpRequestRetryHandler();
    try {
        while (retry) {
            try {
                makeRequest();
                return;
            } catch (UnknownHostException e) {
                // switching between WI-FI and mobile data networks can cause a retry which then results in an UnknownHostException
                // while the WI-FI is initialising. The retry logic will be invoked here, if this is NOT the first retry
                // (to assist in genuine cases of unknown host) which seems better than outright failure
                cause = new IOException("UnknownHostException exception: " + e.getMessage());
                retry = (executionCount > 0) && retryHandler.retryRequest(cause, ++executionCount, context);
            } catch (NullPointerException e) {
                // there's a bug in HttpClient 4.0.x that on some occasions causes
                // DefaultRequestExecutor to throw an NPE, see
                // http://code.google.com/p/android/issues/detail?id=5255
                cause = new IOException("NPE in HttpClient: " + e.getMessage());
                retry = retryHandler.retryRequest(cause, ++executionCount, context);
            } catch (IOException e) {
                if (isCancelled()) {
                    // Eating exception, as the request was cancelled
                    return;
                }
                cause = e;
                retry = retryHandler.retryRequest(cause, ++executionCount, context);
            }
            if (retry && (responseHandler != null)) {
                responseHandler.sendRetryMessage(executionCount);
            }
        }
    } catch (Exception e) {
        // catch anything else to ensure failure message is propagated
        Log.e("AsyncHttpRequest", "Unhandled exception origin cause", e);
        cause = new IOException("Unhandled exception: " + e.getMessage());
    }
    // cleaned up to throw IOException
    throw (cause);
}

---

From source file:com.youzu.android.framework.http.SyncHttpHandler.java

public ResponseStream sendRequest(HttpRequestBase request) throws HttpException {

    HttpRequestRetryHandler retryHandler = client.getHttpRequestRetryHandler();
    while (true) {
        boolean retry = true;
        IOException exception = null;
        try {/*from   w  w w  . j  a  v a 2  s.  co  m*/
            requestUrl = request.toString();
            requestMethod = request.getMethod();
            if (HttpUtils.sHttpCache.isEnabled(requestMethod)) {
                String result = HttpUtils.sHttpCache.get(requestUrl + request.toString());
                if (result != null) {
                    return new ResponseStream(result);
                }
            }

            HttpResponse response = client.execute(request, context);
            return handleResponse(response);
        } catch (UnknownHostException e) {
            exception = e;
            retry = retryHandler.retryRequest(exception, ++retriedTimes, context);
        } catch (IOException e) {
            exception = e;
            retry = retryHandler.retryRequest(exception, ++retriedTimes, context);
        } catch (NullPointerException e) {
            exception = new IOException(e.getMessage());
            exception.initCause(e);
            retry = retryHandler.retryRequest(exception, ++retriedTimes, context);
        } catch (HttpException e) {
            throw e;
        } catch (Throwable e) {
            exception = new IOException(e.getMessage());
            exception.initCause(e);
            retry = retryHandler.retryRequest(exception, ++retriedTimes, context);
        }
        if (!retry) {
            throw new HttpException(exception);
        }
    }
}

---

From source file:com.loopj.android.AsyncHttpRequest.java

private void makeRequestWithRetries() throws IOException {
    boolean retry = true;
    IOException cause = null;/*from  w  ww.  j  a v  a  2 s .c  o  m*/
    HttpRequestRetryHandler retryHandler = client.getHttpRequestRetryHandler();
    try {
        while (retry) {
            try {
                makeRequest();
                return;
            } catch (UnknownHostException e) {
                // switching between WI-FI and mobile data networks can cause a retry
                // which then results in an UnknownHostException
                // while the WI-FI is initialising. The retry logic will be invoked
                // here, if this is NOT the first retry
                // (to assist in genuine cases of unknown host) which seems better
                // than outright failure
                cause = new IOException("UnknownHostException exception: " + e.getMessage());
                retry = (executionCount > 0) && retryHandler.retryRequest(cause, ++executionCount, context);
            } catch (NullPointerException e) {
                // there's a bug in HttpClient 4.0.x that on some occasions causes
                // DefaultRequestExecutor to throw an NPE, see
                // http://code.google.com/p/android/issues/detail?id=5255
                cause = new IOException("NPE in HttpClient: " + e.getMessage());
                retry = retryHandler.retryRequest(cause, ++executionCount, context);
            } catch (IOException e) {
                cause = e;
                retry = retryHandler.retryRequest(cause, ++executionCount, context);
            }
            if (retry && (responseHandler != null)) {
                responseHandler.sendRetryMessage();
            }
        }
    } catch (Exception e) {
        // catch anything else to ensure failure message is propagated
        Log.e("AsyncHttpRequest", "Unhandled exception origin cause", e);
        cause = new IOException("Unhandled exception: " + e.getMessage());
    }

    // cleaned up to throw IOException
    throw (cause);
}

---

From source file:com.louding.frame.http.download.SimpleDownloader.java

/**
 * //from  ww w  .  j a v  a2s  .c o  m
 * 
 * @param request
 * @throws IOException
 */
private void makeRequestWithRetries(HttpUriRequest request) throws IOException {
    if (isResume && targetUrl != null) {
        File downloadFile = new File(targetUrl);
        long fileLen = 0;
        if (downloadFile.isFile() && downloadFile.exists()) {
            fileLen = downloadFile.length();
        }
        if (fileLen > 0) {
            request.setHeader("RANGE", "bytes=" + fileLen + "-");
        }
    }

    boolean retry = true;
    IOException cause = null;
    HttpRequestRetryHandler retryHandler = client.getHttpRequestRetryHandler();
    while (retry) {
        try {
            if (!isCancelled()) {
                HttpResponse response = client.execute(request, context);
                if (!isCancelled()) {
                    handleResponse(response);
                }
            }
            return;
        } catch (UnknownHostException e) {
            publishProgress(UPDATE_FAILURE, e, 0, "unknownHostExceptioncan't resolve host");
            return;
        } catch (IOException e) {
            cause = e;
            retry = retryHandler.retryRequest(cause, ++executionCount, context);
        } catch (NullPointerException e) {
            // HttpClient 4.0.x ?bug
            // http://code.google.com/p/android/issues/detail?id=5255
            cause = new IOException("NPE in HttpClient" + e.getMessage());
            retry = retryHandler.retryRequest(cause, ++executionCount, context);
        } catch (Exception e) {
            cause = new IOException("Exception" + e.getMessage());
            retry = retryHandler.retryRequest(cause, ++executionCount, context);
        }
    }
    if (cause != null) {
        throw cause;
    } else {
        throw new IOException("");
    }
}

---

From source file:com.frand.easyandroid.http.FFHttpRequest.java

private void makeRequestWithRetries() throws ConnectException {
    boolean retry = true;
    IOException cause = null;/*from  w w w  .  ja v a  2  s .c  om*/
    HttpRequestRetryHandler retryHandler = client.getHttpRequestRetryHandler();
    while (retry) {
        try {
            makeRequest();
            return;
        } catch (UnknownHostException e) {
            if (responseHandler != null) {
                responseHandler.sendFailureMsg(e, reqTag, reqUrl);
            }
            return;
        } catch (SocketException e) {
            if (responseHandler != null) {
                responseHandler.sendFailureMsg(e, reqTag, reqUrl);
            }
            return;
        } catch (SocketTimeoutException e) {
            if (responseHandler != null) {
                responseHandler.sendFailureMsg(e, reqTag, reqUrl);
            }
            return;
        } catch (IOException e) {
            cause = e;
            retry = retryHandler.retryRequest(cause, ++executionCount, context);
        } catch (NullPointerException e) {
            cause = new IOException("NPE in HttpClient" + e.getMessage());
            retry = retryHandler.retryRequest(cause, ++executionCount, context);
        }
    }
    ConnectException ex = new ConnectException();
    ex.initCause(cause);
    throw ex;
}

---

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