Example usage for java.util.zip GZIPInputStream GZIPInputStream

Introduction

In this page you can find the example usage for java.util.zip GZIPInputStream GZIPInputStream.

Prototype

public GZIPInputStream(InputStream in) throws IOException

Source Link

Document

Creates a new input stream with a default buffer size.

Usage

From source file:deodex.tools.TarGzUtils.java

/**
 * Ungzip an input file into an output file.
 * <p>//  ww w .j a v a2  s .  c o m
 * The output file is created in the output folder, having the same name
 * as the input file, minus the '.gz' extension. 
 * 
 * @param inputFile     the input .gz file
 * @param outputDir     the output directory file. 
 * @throws IOException 
 * @throws FileNotFoundException
 *  
 * @return  The {@File} with the ungzipped content.
 */
public static File unGzip(final File inputFile, final File outputDir)
        throws FileNotFoundException, IOException {

    final File outputFile = new File(outputDir,
            inputFile.getName().substring(0, inputFile.getName().length() - 3));

    final GZIPInputStream in = new GZIPInputStream(new FileInputStream(inputFile));
    final FileOutputStream out = new FileOutputStream(outputFile);

    IOUtils.copy(in, out);

    in.close();
    out.close();

    return outputFile;
}

From source file:com.citypark.api.parser.XMLParser.java

protected InputStream getInputStream() throws IOException {
    try {// w w  w .java2s  .c  om
        HttpUriRequest request = new HttpGet(feedUrl.toString());
        request.addHeader("Accept-Encoding", "gzip");
        //request.addHeader("encoding", "utf-8");
        final HttpResponse response = new DefaultHttpClient().execute(request);
        Header ce = response.getFirstHeader("Content-Encoding");
        String contentEncoding = null;

        StatusLine statusLine = response.getStatusLine();
        if (statusLine.getStatusCode() == 500) { //TODO currently return 500, after server fix replace with 401
            //re login
            LoginTask.login(null);
            return null;
        }

        HttpEntity entity = response.getEntity();
        InputStream instream = null;

        if (entity != null)
            instream = entity.getContent();

        if (ce != null) {
            contentEncoding = ce.getValue();
            if (contentEncoding != null && contentEncoding.equalsIgnoreCase("gzip")) {
                instream = new GZIPInputStream(instream);
            }
        }

        return instream;
    } catch (IOException e) {
        Log.e(e.getMessage(), "XML parser - " + feedUrl);
        throw e;
    }
}

From source file:com.anhth12.lambda.app.serving.AbstractLambdaResource.java

protected static InputStream maybeDecompress(String contentType, InputStream in) throws IOException {
    if (contentType != null) {
        switch (contentType) {
        case "application/zip":
            in = new ZipInputStream(in);
            break;
        case "application/gzip":
        case "application/x-gzip":
            in = new GZIPInputStream(in);
            break;
        }/*from   w w  w .  jav a 2 s .  c  om*/
    }
    return in;
}

From source file:cascading.util.Util.java

public static Object deserializeBase64(String string, boolean decompress) throws IOException {
    if (string == null || string.length() == 0)
        return null;

    ObjectInputStream in = null;//from   w w w . j  av a  2s  .  c o m

    try {
        ByteArrayInputStream bytes = new ByteArrayInputStream(Base64.decodeBase64(string.getBytes()));

        in = new ObjectInputStream(decompress ? new GZIPInputStream(bytes) : bytes) {
            @Override
            protected Class<?> resolveClass(ObjectStreamClass desc) throws IOException, ClassNotFoundException {
                try {
                    return Class.forName(desc.getName(), false, Thread.currentThread().getContextClassLoader());
                } catch (ClassNotFoundException exception) {
                    return super.resolveClass(desc);
                }
            }
        };

        return in.readObject();
    } catch (ClassNotFoundException exception) {
        throw new FlowException("unable to deserialize data", exception);
    } finally {
        if (in != null)
            in.close();
    }
}

From source file:com.zotoh.core.io.StreamUte.java

/**
 * @param bits/*from   w w w . j a va2s .c om*/
 * @return
 * @throws IOException
 */
public static byte[] gunzip(byte[] bits) throws IOException {
    return bits == null ? null : bits.length == 0 ? new byte[0] : getBytes(new GZIPInputStream(asStream(bits)));
}

From source file:forge.quest.io.QuestDataIO.java

/**
 * <p>//  w  w w.  j a va2s  .  com
 * loadData.
 * </p>
 *
 * @param xmlSaveFile
 *            &emsp; {@link java.io.File}
 * @return {@link forge.quest.data.QuestData}
 */
public static QuestData loadData(final File xmlSaveFile) {
    try {
        QuestData data;

        final GZIPInputStream zin = new GZIPInputStream(new FileInputStream(xmlSaveFile));
        final StringBuilder xml = new StringBuilder();
        final char[] buf = new char[1024];
        final InputStreamReader reader = new InputStreamReader(zin);
        while (reader.ready()) {
            final int len = reader.read(buf);
            if (len == -1) {
                break;
            } // when end of stream was reached
            xml.append(buf, 0, len);
        }

        zin.close();

        String bigXML = xml.toString();
        data = (QuestData) QuestDataIO.getSerializer(true).fromXML(bigXML);

        if (data.getVersionNumber() != QuestData.CURRENT_VERSION_NUMBER) {
            try {
                QuestDataIO.updateSaveFile(data, bigXML, xmlSaveFile.getName().replace(".dat", ""));
            } catch (final Exception e) {
                //BugReporter.reportException(e);
                throw new RuntimeException(e);
            }
        }

        return data;
    } catch (final Exception ex) {
        //BugReporter.reportException(ex, "Error loading Quest Data");
        throw new RuntimeException(ex);
    }
}

From source file:uk.ac.ebi.eva.pipeline.jobs.steps.VepAnnotationGeneratorStepTest.java

@Test
public void shouldGenerateVepAnnotations() throws Exception {
    makeGzipFile("20\t60343\t60343\tG/A\t+", jobOptions.getVepInput());

    File vepOutputFile = JobTestUtils.createTempFile();
    jobOptions.setVepOutput(vepOutputFile.getAbsolutePath());

    vepOutputFile.delete();// w  w w  . java2s  .c  om
    TestCase.assertFalse(vepOutputFile.exists()); // ensure the annot file doesn't exist from previous executions

    // When the execute method in variantsAnnotCreate is executed
    JobExecution jobExecution = jobLauncherTestUtils.launchStep(AnnotationJob.GENERATE_VEP_ANNOTATION);

    //Then variantsAnnotCreate step should complete correctly
    assertEquals(ExitStatus.COMPLETED, jobExecution.getExitStatus());
    assertEquals(BatchStatus.COMPLETED, jobExecution.getStatus());

    // And VEP output should exist and annotations should be in the file
    TestCase.assertTrue(vepOutputFile.exists());
    Assert.assertEquals(537, JobTestUtils.getLines(new GZIPInputStream(new FileInputStream(vepOutputFile))));
    vepOutputFile.delete();
}

From source file:com.amazonaws.services.logs.subscriptions.CloudWatchLogsSubscriptionTransformer.java

private static byte[] uncompress(byte[] compressedData) throws IOException {
    byte[] buffer = new byte[1024];

    try (ByteArrayOutputStream out = new ByteArrayOutputStream()) {
        try (GZIPInputStream gzis = new GZIPInputStream(new ByteArrayInputStream(compressedData))) {
            int len;
            while ((len = gzis.read(buffer)) > 0) {
                out.write(buffer, 0, len);
            }/* w w  w  .  ja va2  s  .co m*/
        }
        out.flush();
        return out.toByteArray();
    }
}

From source file:edu.cornell.med.icb.goby.readers.FastXReader.java

/**
 * Create the FASTX reader.//ww  w .j av  a2s .  co  m
 * @param file the file that contains the FASTA / FASTQ data
 * @throws IOException error reading or the input stream doesn't support "mark"
 */
public FastXReader(final String file) throws IOException {
    this(file.endsWith(".gz") ? new GZIPInputStream(new FastBufferedInputStream(new FileInputStream(file)))
            : new FileInputStream(file));
}

From source file:de.zib.scalaris.examples.wikipedia.data.Revision.java

/**
 * De-compresses the given text and returns it as a string.
 * /*from   ww  w .  ja  v a 2s. c o  m*/
 * @param text
 *            the compressed text
 * 
 * @return the de-compressed text
 * 
 * @throws RuntimeException
 *             if de-compressing the text did not work
 */
protected static String unpackText(byte[] text) throws RuntimeException {
    try {
        ByteArrayOutputStream unpacked = new ByteArrayOutputStream();
        ByteArrayInputStream bis = new ByteArrayInputStream(text);
        GZIPInputStream gis = new GZIPInputStream(bis);
        byte[] bbuf = new byte[256];
        int read = 0;
        while ((read = gis.read(bbuf)) >= 0) {
            unpacked.write(bbuf, 0, read);
        }
        gis.close();
        return new String(unpacked.toString("UTF-8"));
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}