Example usage for java.io SequenceInputStream SequenceInputStream

Introduction

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

Prototype

public SequenceInputStream(Enumeration<? extends InputStream> e) 

Source Link

Document

Initializes a newly created SequenceInputStream by remembering the argument, which must be an Enumeration that produces objects whose run-time type is InputStream.

Usage

From source file:com.github.benmanes.caffeine.cache.simulator.parser.TextTraceReader.java

private InputStream readFiles() throws IOException {
    List<InputStream> inputs = new ArrayList<>(filePaths.size());
    for (String filePath : filePaths) {
        inputs.add(readFile(filePath));/* w  w w.  j  a v a 2  s.  c  o  m*/
    }
    return new SequenceInputStream(Collections.enumeration(inputs));
}

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From source file:org.trustedanalytics.resourceserver.data.InputStreamProvider.java

/**
 * Gets an InputStream for a path on HDFS.
 *
 * If given path is a directory, it will read files inside that dir and create
 * a SequenceInputStream from them, which emulates reading from directory just like from
 * a regular file. Notice that this method is not meant to read huge datasets
 * (as well as the whole project).//  ww w.  j a  v  a  2s.c  o  m
 * @param path
 * @return
 * @throws IOException
 */
public InputStream getInputStream(Path path) throws IOException {
    Objects.requireNonNull(path);
    if (fs.isFile(path)) {
        return fs.open(path);
    } else if (fs.isDirectory(path)) {
        FileStatus[] files = fs.listStatus(path);
        List<InputStream> paths = Arrays.stream(files).map(f -> {
            try {
                return fs.open(f.getPath());
            } catch (IOException e) {
                LOGGER.log(Level.SEVERE, "Cannot read file " + f.getPath().toString(), e);
                return null;
            }
        }).filter(f -> f != null).collect(Collectors.toList());
        return new SequenceInputStream(Collections.enumeration(paths));
    } else {
        throw new IllegalArgumentException("Given path " + path.toString() + " is neither file nor directory");
    }
}

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From source file:cloudlens.parser.FileReader.java

public static InputStream readFiles(String[] fileNames) throws IOException {
    try {/*from w w w .j  a  v a  2  s  . c  o m*/
        final List<InputStream> streams = new ArrayList<>();
        for (final String name : fileNames) {
            streams.add(new FileInputStream(new File(name)));
        }
        final Enumeration<InputStream> files = Collections.enumeration(streams);
        return new SequenceInputStream(files);
    } catch (final IOException e) {
        throw new CLException(e.getMessage());
    }
}

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From source file:com.github.horrorho.inflatabledonkey.pcs.xfile.FileAssembler.java

static InputStream inputStream(List<Chunk> chunkData) throws UncheckedIOException {
    List<InputStream> inputStreams = chunkData.stream().map(Chunk::inputStream).collect(Collectors.toList());

    Enumeration<InputStream> enumeration = Collections.enumeration(inputStreams);
    return new BufferedInputStream(new SequenceInputStream(enumeration), BUFFER_SIZE);
}

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From source file:com.autentia.wuija.i18n.SequenceResource.java

/**
 * Devuelve un nico <code>InputStream</code> que es el resultado de concatenar todos los <code>InputStream</code>
 * de los <code>Resource</code> que se pasaron en el constructor.
 * <p>/*from   ww w  . jav a  2  s  .  co  m*/
 * Para conseguir esto, esta clase utiliza la clase <code>java.io.SequenceInputStream</code> de Java.
 * 
 * @return un nico <code>InputStream</code> que es el resultado de concatenar todos los <code>InputStream</code> de
 *         los <code>Resource</code> que se pasaron en el constructor.
 */
public InputStream getInputStream() throws IOException {
    final List<InputStream> ins = new ArrayList<InputStream>(resources.length);
    for (Resource resource : resources) {
        ins.add(resource.getInputStream());
    }
    final Enumeration<InputStream> streamsEnumeration = Collections.enumeration(ins);
    return new SequenceInputStream(streamsEnumeration);
}

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From source file:org.apache.axis2.format.ElementHelperTest.java

public void testGetTextAsStreamWithoutCaching() throws Exception {
    DataSource ds = new RandomDataSource(654321, 64, 128, 20000000);
    Vector<InputStream> v = new Vector<InputStream>();
    v.add(new ByteArrayInputStream("<a>".getBytes("ascii")));
    v.add(ds.getInputStream());//from www.j a  v  a2 s  .c  o  m
    v.add(new ByteArrayInputStream("</a>".getBytes("ascii")));
    XMLInputFactory factory = XMLInputFactory.newInstance();
    factory.setProperty(XMLInputFactory.IS_COALESCING, Boolean.FALSE);
    XMLStreamReader reader = factory.createXMLStreamReader(new SequenceInputStream(v.elements()), "ascii");
    OMElement element = new StAXOMBuilder(reader).getDocumentElement();
    Reader in = ElementHelper.getTextAsStream(element, false);
    compareStreams(new InputStreamReader(ds.getInputStream(), "ascii"), in);
}

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From source file:com.metamolecular.pubcouch.pubchem.Snapshot.java

public InputStream getStream() throws IOException {
    return new SequenceInputStream(new StreamEnumerator(getFilenames()));
}

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From source file:main.java.miro.browser.util.DownloadHandler.java

public void sendDownload(List<RepositoryObject> objects) {
    List<InputStream> stream_collection = new ArrayList<InputStream>();
    for (RepositoryObject obj : objects) {
        stream_collection.add(objectToStream(obj, false));
    }//from  w  ww. j a va 2  s . c o m
    SequenceInputStream seq_stream = new SequenceInputStream(
            java.util.Collections.enumeration(stream_collection));
    runDownloadService(seq_stream, "object_list");
}

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From source file:org.openhab.io.multimedia.internal.tts.TTSServiceGoogleTTS.java

/**
 * Converts the given sentences into audio and returns it as an {@link InputStream}.
 * /*w  w  w .j a  v a  2s.c o m*/
 * @param sentences
 *            The text to be converted to audio
 * @return {@link InputStream} with audio output
 * @throws IOException
 *             Exception if the connection could not be established properly
 */
private InputStream getSpeechForText(List<String> sentences) throws IOException {
    Vector<InputStream> inputStreams = new Vector<InputStream>(sentences.size());
    for (String sentence : sentences) {
        String encodedSentence = GoogleTTSTextProcessor.urlEncodeSentence(sentence);
        URL url = new URL(String.format(translateUrl, ttsLanguage, encodedSentence));
        inputStreams.add(getInputStreamFromUrl(url));
    }
    return new SequenceInputStream(inputStreams.elements());
}

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From source file:org.apache.axiom.om.util.ElementHelperTest.java

public void testGetTextAsStreamWithoutCaching() throws Exception {
    XMLInputFactory factory = XMLInputFactory.newInstance();
    if (factory.getClass().getName().equals("com.bea.xml.stream.MXParserFactory")) {
        // Skip the test on the StAX reference implementation because it
        // causes an out of memory error
        return;//from ww  w.j a  va  2  s  . c  om
    }
    DataSource ds = new RandomDataSource(654321, 64, 128, 20000000);
    Vector/*<InputStream>*/ v = new Vector/*<InputStream>*/();
    v.add(new ByteArrayInputStream("<a>".getBytes("ascii")));
    v.add(ds.getInputStream());
    v.add(new ByteArrayInputStream("</a>".getBytes("ascii")));
    factory.setProperty(XMLInputFactory.IS_COALESCING, Boolean.FALSE);
    XMLStreamReader reader = factory.createXMLStreamReader(new SequenceInputStream(v.elements()), "ascii");
    OMElement element = new StAXOMBuilder(reader).getDocumentElement();
    Reader in = ElementHelper.getTextAsStream(element, false);
    IOTestUtils.compareStreams(new InputStreamReader(ds.getInputStream(), "ascii"), in);
}

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