Example usage for java.io PipedOutputStream write

Introduction

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

Prototype

public void write(byte b[], int off, int len) throws IOException 

Source Link

Document

Writes len bytes from the specified byte array starting at offset off to this piped output stream.

Usage

From source file:Main.java

public static void main(String[] args) throws Exception {

    byte[] b = { 'h', 'e', 'l', 'l', 'o' };

    PipedOutputStream out = new PipedOutputStream();
    Main in = new Main();

    out.connect(in);/*w w w. j a v  a2 s.c  om*/

    // write something
    out.write(b, 0, 3);

    // flush the stream
    out.flush();

    // print what we wrote
    for (int i = 0; i < 3; i++) {
        System.out.print((char) in.read());
    }
    out.close();
}

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From source file:custom.SevenZFileExt.java

public InputStream getInputStream(final int bufferSize) {
    final PipedInputStream in = new PipedInputStream(bufferSize);
    try {//w ww  . ja  va  2s .  c  o m
        final PipedOutputStream out = new PipedOutputStream(in);
        Thread thread = new Thread(() -> {
            try {
                byte[] buffer = new byte[bufferSize];
                int len = read(buffer);
                while (len > 0) {
                    try {
                        out.write(buffer, 0, len);
                        len = read(buffer);
                    } catch (Exception ex) {
                        LOGGER.error(ex.getMessage(), ex);
                    }
                }
                out.flush();
            } catch (Exception e) {
                LOGGER.error(e.getMessage(), e);
            } finally {
                if (out != null) {
                    try {
                        out.close();
                    } catch (Exception ex) {
                        LOGGER.error(ex.getMessage(), ex);
                    }
                }
            }
        });
        thread.setName("GenerateInputStreamSeven7File");
        thread.start();
    } catch (Exception e) {
        LOGGER.error(e.getMessage(), e);
    }
    return in;
}

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From source file:com.edgenius.wiki.service.impl.SitemapServiceImpl.java

public boolean removePage(String pageUuid) throws IOException {
    boolean removed = false;
    String sitemapIndex = metadata.getSitemapIndex(pageUuid);
    if (sitemapIndex == null) {
        log.warn("Page {} does not exist in sitemap", pageUuid);
        return removed;
    }/*from w  w w  .  ja v a  2  s .c  o m*/

    String sitemapZip = SITEMAP_NAME_PREFIX + sitemapIndex + ".xml.gz";
    File sizemapZipFile = new File(mapResourcesRoot.getFile(), sitemapZip);
    if (!sizemapZipFile.exists()) {
        throw new IOException("Remove pageUuid " + pageUuid + " from sitemap failed becuase sitemap not found");
    }

    PipedInputStream bis = new PipedInputStream();
    PipedOutputStream bos = new PipedOutputStream(bis);
    InputStream zipfile = new FileInputStream(sizemapZipFile);
    GZIPInputStream gzipstream = new GZIPInputStream(zipfile);
    byte[] bytes = new byte[1024 * 1000];
    int len = 0;
    while ((len = gzipstream.read(bytes)) > 0) {
        bos.write(bytes, 0, len);
    }

    IOUtils.closeQuietly(zipfile);
    IOUtils.closeQuietly(gzipstream);

    String pageUrl = metadata.getPageUrl(pageUuid);
    String body = IOUtils.toString(bis);
    int loc = body.indexOf("<loc>" + pageUrl + "</loc>");
    if (loc != -1) {
        int start = StringUtils.lastIndexOf(body, "<url>", loc);
        int end = StringUtils.indexOf(body, "</url>", loc);
        if (start != -1 && end != -1) {
            //remove this URL
            body = StringUtils.substring(body, start, end + 6);
            zipToFile(sizemapZipFile, body.getBytes());
            removed = true;
        }
    }

    metadata.removePageMap(pageUuid);

    return removed;
}

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From source file:org.whitesource.agent.utils.ZipUtils.java

private static void produceCompressDataFromStream(InputStream inputStream,
        PipedOutputStream pipedOutputStream) {
    try (BufferedInputStream in = new BufferedInputStream(inputStream)) {
        byte[] buffer = new byte[BYTES_BUFFER_SIZE];
        int len;/* ww w  . j a  v a 2s  .  c o  m*/
        while ((len = in.read(buffer)) > 0) {
            pipedOutputStream.write(buffer, 0, len);
        }
        pipedOutputStream.close();
    } catch (IOException e) {
        // logger.error("Failed to produce data to compress : ", e);
    }
}

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