Example usage for java.io IOException IOException

Introduction

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

Prototype

public IOException(Throwable cause) 

Source Link

Document

Constructs an IOException with the specified cause and a detail message of (cause==null ?

Usage

From source file:com.google.android.feeds.ContentHandlerUtils.java

/**
 * Returns the character set of the content provided by the given
 * {@link URLConnection}.//  ww  w  .j av a  2  s  .  com
 *
 * @throws IOException if the character set cannot be determined.
 */
public static String getCharSet(URLConnection connection) throws IOException {
    String contentType = connection.getContentType();
    if (contentType != null) {
        HeaderValueParser parser = new BasicHeaderValueParser();
        HeaderElement[] values = BasicHeaderValueParser.parseElements(contentType, parser);
        if (values.length > 0) {
            NameValuePair param = values[0].getParameterByName("charset");
            if (param != null) {
                return param.getValue();
            }
        }
    }
    if (connection instanceof HttpURLConnection) {
        return HTTP.DEFAULT_CONTENT_CHARSET;
    } else {
        throw new IOException("Unabled to determine character encoding");
    }
}

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From source file:acromusashi.kafka.log.producer.util.YamlReadUtil.java

/**
 * ???Yaml????Yaml?/*from   w w  w.ja v  a2 s.  co  m*/
 * 
 * @param filePath 
 * @return ???
 * @throws IOException 
 */
@SuppressWarnings({ "unchecked" })
public static Map<String, Object> readYaml(String filePath) throws IOException {
    Map<String, Object> configObject = null;
    Yaml yaml = new Yaml();

    InputStream inputStream = null;
    InputStreamReader steamReader = null;
    File file = new File(filePath);

    try {
        inputStream = new FileInputStream(file.getAbsolutePath());
        steamReader = new InputStreamReader(inputStream, "UTF-8");
        configObject = (Map<String, Object>) yaml.load(steamReader);
    } catch (Exception ex) {
        // ScannerException/IOException?????
        // 2???????????????Exception?????
        throw new IOException(ex);
    } finally {
        IOUtils.closeQuietly(inputStream);
    }

    return configObject;
}

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From source file:com.symbian.driver.engine.Utils.java

/**
 * @param aCmd/*ww w  . j  a v  a 2s. c o  m*/
 * @param aFirstParameter
 * @param aSecondParameter
 * @return
 * @throws JStatException
 * @throws IOException
 * @throws TimeLimitExceededException
 */
public static final BufferedReader executeOnDevice(final int aCmd, final String aFirstParameter,
        final String aSecondParameter) throws JStatException, IOException, TimeLimitExceededException {
    PipedOutputStream lPipedOutputStream = new PipedOutputStream();
    PipedInputStream lPipedInputStream = new PipedInputStream(lPipedOutputStream);

    try {
        if (aFirstParameter == null && aSecondParameter == null) {
            new ExecuteOnDevice(aCmd).doTask(true, EngineTests.TIMEOUT, false);
        } else if (aFirstParameter != null && aSecondParameter == null) {
            new ExecuteOnDevice(aCmd, aFirstParameter).doTask(true, EngineTests.TIMEOUT, false);
        } else if (aFirstParameter != null && aSecondParameter != null) {
            new ExecuteOnDevice(aCmd, aFirstParameter, aSecondParameter).doTask(true, EngineTests.TIMEOUT,
                    false);
        }
    } catch (ParseException lParseException) {
        throw new IOException("Could not read transport. " + lParseException.getMessage());
    }

    BufferedReader lBufferedReader = new BufferedReader(new InputStreamReader(lPipedInputStream));
    //      lPipedInputStream.close();
    lPipedOutputStream.close();

    return lBufferedReader;
}

---

From source file:de.codesourcery.eve.skills.util.ClasspathInputStreamProvider.java

@Override
public InputStream createInputStream() throws IOException {

    final InputStream result = ClasspathInputStreamProvider.class.getResourceAsStream(path);

    if (result == null) {
        throw new IOException("Resource not found on classpath: " + path);
    }/*from  w ww.j a va 2s  .  c o  m*/
    return result;
}

---

From source file:Main.java

/**
 * Reads the contents of an InputStream into a byte[].
 * *///from   w  ww . j  a va  2s .  c o  m
public static byte[] streamToBytes(InputStream in, int length) throws IOException {
    byte[] bytes = new byte[length];
    int count;
    int pos = 0;
    while (pos < length && ((count = in.read(bytes, pos, length - pos)) != -1)) {
        pos += count;
    }
    if (pos != length) {
        throw new IOException("Expected " + length + " bytes, read " + pos + " bytes");
    }
    return bytes;
}

---

From source file:hudson.util.SignatureOutputStream.java

@Override
public void write(int b) throws IOException {
    try {/*  w ww.  ja  v  a2s  . com*/
        sig.update((byte) b);
        out.write(b);
    } catch (SignatureException e) {
        throw (IOException) new IOException(e.getMessage()).initCause(e);
    }
}

---

From source file:io.milton.common.RangeUtils.java

public static void writeRanges(InputStream in, List<Range> ranges, OutputStream responseOut)
        throws IOException {
    try {/*  w ww .  java  2  s  . c o m*/
        InputStream bufIn = in; //new BufferedInputStream(in);
        long pos = 0;
        for (Range r : ranges) {
            long skip = r.getStart() - pos;
            bufIn.skip(skip);
            Long length = r.getLength();
            if (length == null) { // will return null if cant calculate
                throw new IOException(
                        "Unable to write range because either start or finish index are not provided: " + r);
            }
            sendBytes(bufIn, responseOut, length);
            pos = r.getFinish();
        }
    } finally {
        StreamUtils.close(in);
    }
}

---

From source file:edu.iu.kmeans.regroupallgather.KMUtil.java

/**
 * Generate centroids and upload to the cDir
 * /*from w  ww. ja  va  2  s  .  c  o m*/
 * @param numCentroids
 * @param vectorSize
 * @param configuration
 * @param random
 * @param cenDir
 * @param fs
 * @throws IOException
 */
static void generateCentroids(int numCentroids, int vectorSize, Configuration configuration, Path cenDir,
        FileSystem fs) throws IOException {
    Random random = new Random();
    double[] data = null;
    if (fs.exists(cenDir))
        fs.delete(cenDir, true);
    if (!fs.mkdirs(cenDir)) {
        throw new IOException("Mkdirs failed to create " + cenDir.toString());
    }
    data = new double[numCentroids * vectorSize];
    for (int i = 0; i < data.length; i++) {
        // data[i] = 1000;
        data[i] = random.nextDouble() * 1000;
    }
    Path initClustersFile = new Path(cenDir, Constants.CENTROID_FILE_NAME);
    System.out.println("Generate centroid data." + initClustersFile.toString());
    FSDataOutputStream out = fs.create(initClustersFile, true);
    BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(out));
    for (int i = 0; i < data.length; i++) {
        if ((i % vectorSize) == (vectorSize - 1)) {
            bw.write(data[i] + "");
            bw.newLine();
        } else {
            bw.write(data[i] + " ");
        }
    }
    bw.flush();
    bw.close();
    System.out.println("Wrote centroids data to file");
}

---

From source file:net.przemkovv.sphinx.Utils.java

public static File createRandomTempDirectory(String prefix, String tmp_dir) throws IOException {
    final File temp;
    File tmp_dir_file = null;//from  w  w  w.  j  a  v  a 2  s  .  c o m
    if (tmp_dir != null && !tmp_dir.isEmpty()) {
        tmp_dir_file = new File(tmp_dir);
    }
    temp = File.createTempFile(prefix, null, tmp_dir_file);
    if (!(temp.delete())) {
        throw new IOException("Could not delete temp file: " + temp.getAbsolutePath());
    }
    if (!(temp.mkdir())) {
        throw new IOException("Could not create temp directory: " + temp.getAbsolutePath());
    }
    return (temp);
}

---

From source file:com.hadoop.compression.lzo.LzopOutputStream.java

/**
 * Write an lzop-compatible header to the OutputStream provided.
 *///from w  ww . j a  v a  2 s  .co m
protected static void writeLzopHeader(OutputStream out, LzoCompressor.CompressionStrategy strategy)
        throws IOException {
    DataOutputBuffer dob = new DataOutputBuffer();
    try {
        dob.writeShort(LzopCodec.LZOP_VERSION);
        dob.writeShort(LzoCompressor.LZO_LIBRARY_VERSION);
        dob.writeShort(LzopCodec.LZOP_COMPAT_VERSION);
        switch (strategy) {
        case LZO1X_1:
            dob.writeByte(1);
            dob.writeByte(5);
            break;
        case LZO1X_15:
            dob.writeByte(2);
            dob.writeByte(1);
            break;
        case LZO1X_999:
            dob.writeByte(3);
            dob.writeByte(9);
            break;
        default:
            throw new IOException("Incompatible lzop strategy: " + strategy);
        }
        dob.writeInt(0); // all flags 0
        dob.writeInt(0x81A4); // mode
        dob.writeInt((int) (System.currentTimeMillis() / 1000)); // mtime
        dob.writeInt(0); // gmtdiff ignored
        dob.writeByte(0); // no filename
        Adler32 headerChecksum = new Adler32();
        headerChecksum.update(dob.getData(), 0, dob.getLength());
        int hc = (int) headerChecksum.getValue();
        dob.writeInt(hc);
        out.write(LzopCodec.LZO_MAGIC);
        out.write(dob.getData(), 0, dob.getLength());
    } finally {
        dob.close();
    }
}

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