Example usage for java.io FilterInputStream FilterInputStream

Introduction

In this page you can find the example usage for java.io FilterInputStream FilterInputStream.

Prototype

protected FilterInputStream(InputStream in)

Source Link

Document

Creates a FilterInputStream by assigning the argument in to the field this.in so as to remember it for later use.

Usage

From source file:davmail.exchange.dav.DavExchangeSession.java

protected InputStream getContentInputStream(String url) throws IOException {
    String encodedUrl = encodeAndFixUrl(url);

    final GetMethod method = new GetMethod(encodedUrl);
    method.setRequestHeader("Content-Type", "text/xml; charset=utf-8");
    method.setRequestHeader("Translate", "f");
    method.setRequestHeader("Accept-Encoding", "gzip");

    InputStream inputStream;//from  w  w w.  java 2  s .com
    try {
        DavGatewayHttpClientFacade.executeGetMethod(httpClient, method, true);
        if (DavGatewayHttpClientFacade.isGzipEncoded(method)) {
            inputStream = new GZIPInputStream(method.getResponseBodyAsStream());
        } else {
            inputStream = method.getResponseBodyAsStream();
        }
        inputStream = new FilterInputStream(inputStream) {
            int totalCount;
            int lastLogCount;

            @Override
            public int read(byte[] buffer, int offset, int length) throws IOException {
                int count = super.read(buffer, offset, length);
                totalCount += count;
                if (totalCount - lastLogCount > 1024 * 128) {
                    DavGatewayTray.debug(new BundleMessage("LOG_DOWNLOAD_PROGRESS",
                            String.valueOf(totalCount / 1024), method.getURI()));
                    DavGatewayTray.switchIcon();
                    lastLogCount = totalCount;
                }
                return count;
            }

            @Override
            public void close() throws IOException {
                try {
                    super.close();
                } finally {
                    method.releaseConnection();
                }
            }
        };

    } catch (HttpException e) {
        method.releaseConnection();
        LOGGER.warn("Unable to retrieve message at: " + url);
        throw e;
    }
    return inputStream;
}