Examples with HttpRequestExecuter com.openmeap.http.HttpRequestExecuter used on opensource projects

Example 1 with HttpRequestExecuter

use of com.openmeap.http.HttpRequestExecuter in project OpenMEAP by OpenMEAP.

the class UpdateHandler method downloadToArchive.

/**
 * @param update
 * @param eventHandler
 * @return true if completed, false if interrupted
 * @throws IOException
 */
public Boolean downloadToArchive(UpdateStatus update, StatusChangeHandler eventHandler) throws UpdateException {
    // download the file to import.zip
    OutputStream os = null;
    InputStream is = null;
    HttpRequestExecuter requester = HttpRequestExecuterFactory.newDefault();
    HttpResponse updateRequestResponse;
    try {
        updateRequestResponse = requester.get(update.getUpdateHeader().getUpdateUrl());
    } catch (HttpRequestException e) {
        throw new UpdateException(UpdateResult.IO_EXCEPTION, "An issue occurred fetching the update archive", e);
    }
    if (updateRequestResponse.getStatusCode() != 200)
        throw new UpdateException(UpdateResult.RESPONSE_STATUS_CODE, "Status was " + updateRequestResponse.getStatusCode() + ", expecting 200");
    try {
        os = storage.getImportArchiveOutputStream();
        is = updateRequestResponse.getResponseBody();
        byte[] bytes = new byte[1024];
        int count = is.read(bytes);
        int contentLength = (int) updateRequestResponse.getContentLength();
        int contentDownloaded = 0;
        int lastContentDownloaded = contentDownloaded;
        int percent = contentLength / 100;
        while (count != (-1)) {
            os.write(bytes, 0, count);
            count = is.read(bytes);
            contentDownloaded += count;
            if (eventHandler != null && lastContentDownloaded + percent < contentDownloaded) {
                update.setBytesDownloaded(contentDownloaded);
                eventHandler.onStatusChange(update);
                lastContentDownloaded = contentDownloaded;
            }
            synchronized (interruptLock) {
                if (interrupt.booleanValue()) {
                    clearInterruptFlag();
                    throw new UpdateException(UpdateResult.INTERRUPTED, "Download of archive was interrupted");
                }
            }
        }
    } catch (IOException lse) {
        throw new UpdateException(UpdateResult.IO_EXCEPTION, lse.getMessage(), lse);
    } catch (LocalStorageException lse) {
        throw new UpdateException(UpdateResult.IO_EXCEPTION, lse.getMessage(), lse);
    } finally {
        try {
            storage.closeOutputStream(os);
            storage.closeInputStream(is);
        } catch (LocalStorageException e) {
            throw new UpdateException(UpdateResult.IO_EXCEPTION, e.getMessage(), e);
        }
        // have to hang on to the requester till the download is complete,
        // so that we can retain control over when the connection manager
        // shut's down
        requester.shutdown();
    }
    return Boolean.TRUE;
}