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:com.corebase.android.framework.http.client.MyHttpRequest.java

public byte[] downloadWithCache() throws ConnectException, Exception {
    byte[] data = null;
    boolean retry = true;
    IOException cause = null;//from  w ww .j  a va  2  s .  c  o m
    HttpRequestRetryHandler retryHandler = client.getHttpRequestRetryHandler();
    while (retry) {
        try {
            //pcgroup?
            if (null != cacheParams && !cacheParams.isRefresh()) {
                data = CacheManager.getCache(url);
                if (null != data) {
                    return data;
                } else {
                    data = executeTask();
                }
            } else {
                data = executeTask();
            }
        } 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);
        }
    }

    // no retries left, crap out with exception
    ConnectException ex = new ConnectException();
    ex.initCause(cause);
    throw ex;
}

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From source file:net.tsz.afinal.http.AjaxRequestHandler.java

private void makeRequestWithRetries(HttpUriRequest request) throws ConnectException {

    boolean retry = true;
    IOException cause = null;/*from   w ww. j a  va 2s  .  c  o m*/
    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, "can'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);
        }
    }

    //??
    ConnectException ex = new ConnectException();
    ex.initCause(cause);
    throw ex;
}

---

From source file:com.haoqee.chat.global.VoiceTask.java

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();
        }//from w  w  w.  jav a  2 s .  co m
        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, "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.sf.httpclient.core.HttpHandler.java

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();
        }//from   w  ww  .j  a v a 2  s .  c  om
        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) {
            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:cn.com.dfc.pl.afinal.http.HttpHandler.java

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();
        }//from  ww  w  .  j a  v  a  2s. c  om
        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.example.wechatsample.library.http.AsyncHttpRequest.java

private void makeRequestWithRetries() throws ConnectException {
    // This is an additional layer of retry logic lifted from droid-fu
    // See://from w w  w  .  jav  a  2  s . c  om
    // https://github.com/kaeppler/droid-fu/blob/master/src/main/java/com/github/droidfu/http/BetterHttpRequestBase.java
    boolean retry = true;
    IOException cause = null;
    HttpRequestRetryHandler retryHandler = client.getHttpRequestRetryHandler();
    while (retry) {
        try {
            makeRequest();
            return;
        } catch (UnknownHostException e) {
            if (responseHandler != null) {
                responseHandler.sendFailureMessage(e, "can't resolve host");
            }
            return;
        } catch (SocketException e) {
            // Added to detect host unreachable
            if (responseHandler != null) {
                responseHandler.sendFailureMessage(e, "can't resolve host");
            }
            return;
        } catch (IOException e) {
            cause = e;
            retry = 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);
        }
    }

    // no retries left, crap out with exception
    ConnectException ex = new ConnectException();
    ex.initCause(cause);
    throw ex;
}

---

From source file:cn.edu.zzu.wemall.http.AsyncHttpRequest.java

private void makeRequestWithRetries() throws IOException {
    boolean retry = true;
    IOException cause = null;/* ww  w . j ava2s .c  om*/
    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.enjoy.nerd.http.AsyncHttpRequest.java

private void makeRequestWithRetries() throws IOException {
    boolean retry = true;
    IOException cause = null;//from  w  w w .jav  a2 s  .c om
    executionCount = 0;
    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 = e;//new IOException("UnknownHostException exception: " + e.getMessage());
                retry = 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(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.aoeng.degu.utils.net.asyncthhpclient.AsyncHttpRequest.java

private void makeRequestWithRetries() throws IOException {
    boolean retry = true;
    IOException cause = null;/*from ww w  .j  a  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) {
                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.my.cloudcontact.http.HttpHandler.java

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();
        }/*  w  w  w.jav a  2 s.c om*/
        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(request, 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("");
}

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