Example usage for java.io DataInputStream readFully

Introduction

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

Prototype

public final void readFully(byte b[]) throws IOException 

Source Link

Document

See the general contract of the readFully method of DataInput .

Usage

From source file:view.CertificateManagementDialog.java

private InputStream fullStream(String fname) throws IOException {
    FileInputStream fis = new FileInputStream(fname);
    DataInputStream dis = new DataInputStream(fis);
    byte[] bytes = new byte[dis.available()];
    dis.readFully(bytes);
    ByteArrayInputStream bais = new ByteArrayInputStream(bytes);
    return bais;//from w w  w  . j a  va2  s.  c om
}

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From source file:com.jk.framework.util.FakeRunnable.java

/**
 * Read stream.//from  w ww.ja  va  2 s  .c  o m
 *
 * @param inStream
 *            InputStream
 * @return String
 * @throws IOException
 *             Signals that an I/O exception has occurred.
 */
public static byte[] readStream(final InputStream inStream) throws IOException {
    DataInputStream in = null;
    try {
        in = new DataInputStream(inStream);
        final int size = in.available();
        final byte arr[] = new byte[size];
        in.readFully(arr);
        return arr;
    } finally {
        if (in != null) {
            in.close();
        }
    }
}

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From source file:org.calrissian.accumulorecipes.commons.support.qfd.KeyToAttributeStoreWholeColFXform.java

@Override
public V apply(Map.Entry<Key, Value> keyValueEntry) {
    try {/*w  ww . j a  v  a  2 s  . co  m*/

        B entry = null;

        List<Map.Entry<Key, Value>> groupedKVs = decodeRow(keyValueEntry.getKey(), keyValueEntry.getValue());

        for (Map.Entry<Key, Value> groupedEvent : groupedKVs) {

            String[] colQParts = splitPreserveAllTokens(groupedEvent.getKey().getColumnQualifier().toString(),
                    NULL_BYTE);
            String[] aliasValue = splitPreserveAllTokens(colQParts[1], ONE_BYTE);
            String visibility = groupedEvent.getKey().getColumnVisibility().toString();

            try {
                ByteArrayInputStream bais = new ByteArrayInputStream(groupedEvent.getValue().get());
                DataInputStream dis = new DataInputStream(bais);
                dis.readLong(); // minimum expiration of keys and values
                long timestamp = dis.readLong();

                if (entry == null)
                    entry = buildEntryFromKey(
                            new Key(keyValueEntry.getKey().getRow(), keyValueEntry.getKey().getColumnFamily(),
                                    keyValueEntry.getKey().getColumnQualifier(), timestamp));

                int length = dis.readInt();
                byte[] metaBytes = new byte[length];
                dis.readFully(metaBytes);

                Map<String, String> meta = metadataSerDe.deserialize(metaBytes);
                Map<String, String> metadata = (length == 0 ? new HashMap<String, String>()
                        : new HashMap<String, String>(meta));
                setVisibility(metadata, visibility);
                Attribute attribute = new Attribute(colQParts[0],
                        typeRegistry.decode(aliasValue[0], aliasValue[1]), metadata);
                entry.attr(attribute);
            } catch (Exception e) {
                log.error("There was an error deserializing the metadata for a attribute", e);
            }
        }

        return entry.build();
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}

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From source file:org.calrissian.accumulorecipes.commons.support.qfd.KeyToAttributeStoreQueryXform.java

@Override
public V apply(Map.Entry<Key, Value> keyValueEntry) {
    EventFields eventFields = new EventFields();
    eventFields.read(kryo, new Input(keyValueEntry.getValue().get()), EventFields.class);
    B entry = null;// www .  j a v a 2  s.  c o m
    for (Map.Entry<String, Set<EventFields.FieldValue>> fieldValue : eventFields.entrySet()) {

        for (EventFields.FieldValue fieldValue1 : fieldValue.getValue()) {

            String[] aliasVal = splitPreserveAllTokens(new String(fieldValue1.getValue()), ONE_BYTE);
            Object javaVal = typeRegistry.decode(aliasVal[0], aliasVal[1]);

            String vis = fieldValue1.getVisibility().getExpression().length > 0
                    ? new String(fieldValue1.getVisibility().getExpression())
                    : "";

            try {
                ByteArrayInputStream bais = new ByteArrayInputStream(fieldValue1.getMetadata());
                DataInputStream dis = new DataInputStream(bais);
                dis.readLong(); // minimum expiration of keys and values
                long timestamp = dis.readLong();
                if (entry == null)
                    entry = buildAttributeCollectionFromKey(
                            new Key(keyValueEntry.getKey().getRow(), keyValueEntry.getKey().getColumnFamily(),
                                    keyValueEntry.getKey().getColumnQualifier(), timestamp));

                int length = dis.readInt();
                byte[] metaBytes = new byte[length];
                dis.readFully(metaBytes);

                Map<String, String> meta = metadataSerDe.deserialize(metaBytes);
                Map<String, String> metadata = (length == 0 ? new HashMap<String, String>()
                        : new HashMap<String, String>(meta));
                setVisibility(metadata, vis);
                Attribute attribute = new Attribute(fieldValue.getKey(), javaVal, metadata);
                entry.attr(attribute);
            } catch (Exception e) {
                log.error("There was an error deserializing the metadata for a attribute", e);
            }
        }
    }
    return entry.build();
}

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From source file:org.carbondata.query.util.CacheUtil.java

private static Member[][] populateMemberCache(DataInputStream fileChannel, CarbonFile memberFile,
        String fileName, String dataType) throws IOException {
    // ByteBuffer toltalLength, memberLength, surrogateKey, bf3;
    // subtracted 4 as last 4 bytes will have the max value for no of
    // records/*ww w . j  ava 2s.com*/
    long currPositionIndex = 0;
    long size = memberFile.getSize() - 4;
    long skipSize = size;
    long actualSkipSize = 0;
    while (actualSkipSize != size) {
        actualSkipSize += fileChannel.skip(skipSize);
        skipSize = skipSize - actualSkipSize;
    }
    //        LOGGER.debug(CarbonEngineLogEvent.UNIBI_CARBONENGINE_MSG, "Bytes skipped " +
    // skipSize);
    int maxVal = fileChannel.readInt();
    CarbonUtil.closeStreams(fileChannel);
    fileChannel = FileFactory.getDataInputStream(fileName, FileFactory.getFileType(fileName));
    // CHECKSTYLE:OFF Approval No:Approval-V1R2C10_005
    ByteBuffer buffer = ByteBuffer.allocate((int) size);
    // CHECKSTYLE:OFF
    fileChannel.readFully(buffer.array());
    int minVal = buffer.getInt();
    int totalArraySize = maxVal - minVal + 1;
    Member[][] surogateKeyArrays = null;
    if (totalArraySize > CarbonCommonConstants.LEVEL_ARRAY_SIZE) {
        int div = totalArraySize / CarbonCommonConstants.LEVEL_ARRAY_SIZE;
        int rem = totalArraySize % CarbonCommonConstants.LEVEL_ARRAY_SIZE;
        if (rem > 0) {
            div++;
        }
        surogateKeyArrays = new Member[div][];

        for (int i = 0; i < div - 1; i++) {
            surogateKeyArrays[i] = new Member[CarbonCommonConstants.LEVEL_ARRAY_SIZE];
        }

        if (rem > 0) {
            surogateKeyArrays[surogateKeyArrays.length - 1] = new Member[rem];
        } else {
            surogateKeyArrays[surogateKeyArrays.length
                    - 1] = new Member[CarbonCommonConstants.LEVEL_ARRAY_SIZE];
        }
    } else {
        surogateKeyArrays = new Member[1][totalArraySize];
    }
    //        Member[] surogateKeyArrays = new Member[maxVal-minVal+1];
    //        int surrogateKeyIndex = minVal;
    currPositionIndex += 4;
    //
    int current = 0;
    // CHECKSTYLE:OFF Approval No:Approval-V1R2C10_005
    boolean enableEncoding = Boolean
            .valueOf(CarbonProperties.getInstance().getProperty(CarbonCommonConstants.ENABLE_BASE64_ENCODING,
                    CarbonCommonConstants.ENABLE_BASE64_ENCODING_DEFAULT));
    // CHECKSTYLE:ON
    int index = 0;
    int prvArrayIndex = 0;
    while (currPositionIndex < size) {
        int len = buffer.getInt();
        // CHECKSTYLE:OFF Approval No:Approval-V1R2C10_005
        // CHECKSTYLE:ON
        currPositionIndex += 4;
        byte[] rowBytes = new byte[len];
        buffer.get(rowBytes);
        currPositionIndex += len;
        // No:Approval-361
        if (enableEncoding) {
            rowBytes = Base64.decodeBase64(rowBytes);
        }
        surogateKeyArrays[current / CarbonCommonConstants.LEVEL_ARRAY_SIZE][index] = new Member(rowBytes);
        current++;
        if (current / CarbonCommonConstants.LEVEL_ARRAY_SIZE > prvArrayIndex) {
            prvArrayIndex++;
            index = 0;
        } else {
            index++;
        }
    }
    return surogateKeyArrays;
}

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From source file:netscape.security.pkcs.PKCS7.java

/**
 * Unmarshals a PKCS7 block from its encoded form, parsing the
 * encoded bytes from the InputStream./*from  w w  w. j a v a 2  s  .c  o  m*/
 *
 * @param in an input stream holding at least one PKCS7 block.
 * @exception ParsingException on parsing errors.
 * @exception IOException on other errors.
 */
public PKCS7(InputStream in) throws ParsingException, IOException {
    DataInputStream dis = new DataInputStream(in);

    int len = 0;
    byte[] newbuf = new byte[len];
    byte[] oldbuf = new byte[len];
    byte[] data = new byte[len];

    do {
        newbuf = new byte[dis.available()];
        len += dis.available();
        dis.readFully(newbuf);
        data = new byte[len];

        System.arraycopy(oldbuf, 0, data, 0, oldbuf.length);
        System.arraycopy(newbuf, 0, data, oldbuf.length, newbuf.length);
        oldbuf = new byte[len];
        System.arraycopy(data, 0, oldbuf, 0, data.length);

    } while (dis.available() > 0);

    parse(new DerInputStream(data));
}

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From source file:org.apache.jackrabbit.core.persistence.util.BundleWriter.java

/**
 * Write a small binary value and return the data.
 *
 * @param value the binary value// w  w w. j  av  a2 s . co  m
 * @param state the property state (for error messages)
 * @param i the index (for error messages)
 * @return the data
 * @throws IOException if the data could not be read
 */
private byte[] writeSmallBinary(InternalValue value, NodePropBundle.PropertyEntry state, int i)
        throws IOException {
    try {
        int size = (int) value.getLength();
        out.writeInt(size);
        byte[] data = new byte[size];
        DataInputStream in = new DataInputStream(value.getStream());
        try {
            in.readFully(data);
        } finally {
            IOUtils.closeQuietly(in);
        }
        out.write(data, 0, data.length);
        return data;
    } catch (Exception e) {
        String msg = "Error while storing blob. id=" + state.getId() + " idx=" + i + " value=" + value;
        log.error(msg, e);
        throw new IOExceptionWithCause(msg, e);
    }
}

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From source file:com.limegroup.gnutella.metadata.ASFParser.java

/**
 * Parses a value from an extended tag, assuming the value is of the 'string' dataType.
 *///from www.ja  va 2 s . c  o m
private void parseExtendedString(String field, int size, DataInputStream ds) throws IOException {
    byte[] data = new byte[Math.min(250, size)];
    ds.readFully(data);
    int leftover = Math.max(0, size - 250);
    IOUtils.ensureSkip(ds, leftover);
    String info = string(data);

    if (LOG.isDebugEnabled())
        LOG.debug("Parsing extended String.  field: " + field + ", Value: " + info);

    if (Extended.WM_TITLE.equals(field)) {
        if (_title == null)
            _title = info;
    } else if (Extended.WM_AUTHOR.equals(field)) {
        if (_artist == null)
            _artist = info;
    } else if (Extended.WM_ALBUMTITLE.equals(field)) {
        if (_album == null)
            _album = info;
    } else if (Extended.WM_TRACK_NUMBER.equals(field)) {
        if (_track == -1)
            _track = toShort(info);
    } else if (Extended.WM_YEAR.equals(field)) {
        if (_year == null)
            _year = info;
    } else if (Extended.WM_GENRE.equals(field)) {
        if (_genre == null)
            _genre = info;
    } else if (Extended.WM_DESCRIPTION.equals(field)) {
        if (_comment == null)
            _comment = info;
    }
}

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From source file:ee.sk.digidoc.SignedDoc.java

/**
 * Reads in data file//w  w w.  ja  v a 2s. c  o  m
 * @param inFile input file
 */
public static byte[] readFile(File inFile) throws IOException, FileNotFoundException {
    byte[] data = null;
    FileInputStream is = new FileInputStream(inFile);
    DataInputStream dis = new DataInputStream(is);
    data = new byte[dis.available()];
    dis.readFully(data);
    dis.close();
    is.close();
    return data;
}

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From source file:org.apache.jackrabbit.core.persistence.bundle.util.BundleBinding.java

/**
 * Write a small binary value and return the data.
 *
 * @param out the output stream to write
 * @param size the size//from w ww .  ja v a 2  s . c om
 * @param blobVal the binary value
 * @param state the property state (for error messages)
 * @param i the index (for error messages)
 * @return the data
 * @throws IOException if the data could not be read
 */
private byte[] writeSmallBinary(DataOutputStream out, BLOBFileValue blobVal, NodePropBundle.PropertyEntry state,
        int i) throws IOException {
    int size = (int) blobVal.getLength();
    out.writeInt(size);
    byte[] data = new byte[size];
    try {
        DataInputStream in = new DataInputStream(blobVal.getStream());
        try {
            in.readFully(data);
        } finally {
            IOUtils.closeQuietly(in);
        }
    } catch (Exception e) {
        String msg = "Error while storing blob. id=" + state.getId() + " idx=" + i + " size=" + size;
        log.error(msg, e);
        throw new IOException(msg);
    }
    out.write(data, 0, data.length);
    return data;
}

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