Example usage for java.io DataInput readInt

Introduction

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

Prototype

int readInt() throws IOException;

Source Link

Document

Reads four input bytes and returns an int value.

Usage

From source file:org.apache.pig.data.BinInterSedes.java

/**
 * Expects binInterSedes data types (NOT DataType types!)
 * <p>//from  w ww  .j a v a 2s.  c o  m
 *
 * @see org.apache.pig.data.InterSedes#readDatum(java.io.DataInput, byte)
 */
@Override
public Object readDatum(DataInput in, byte type) throws IOException, ExecException {
    switch (type) {
    case TUPLE_0:
    case TUPLE_1:
    case TUPLE_2:
    case TUPLE_3:
    case TUPLE_4:
    case TUPLE_5:
    case TUPLE_6:
    case TUPLE_7:
    case TUPLE_8:
    case TUPLE_9:
    case TUPLE:
    case TINYTUPLE:
    case SMALLTUPLE:
        return SedesHelper.readGenericTuple(in, type);

    case BAG:
    case TINYBAG:
    case SMALLBAG:
        return readBag(in, type);

    case MAP:
    case TINYMAP:
    case SMALLMAP:
        return readMap(in, type);

    case INTERNALMAP:
        return readInternalMap(in);

    case INTEGER_0:
        return Integer.valueOf(0);
    case INTEGER_1:
        return Integer.valueOf(1);
    case INTEGER_INBYTE:
        return Integer.valueOf(in.readByte());
    case INTEGER_INSHORT:
        return Integer.valueOf(in.readShort());
    case INTEGER:
        return Integer.valueOf(in.readInt());

    case LONG_0:
        return Long.valueOf(0);
    case LONG_1:
        return Long.valueOf(1);
    case LONG_INBYTE:
        return Long.valueOf(in.readByte());
    case LONG_INSHORT:
        return Long.valueOf(in.readShort());
    case LONG_ININT:
        return Long.valueOf(in.readInt());
    case LONG:
        return Long.valueOf(in.readLong());

    case DATETIME:
        return new DateTime(in.readLong(), DateTimeZone.forOffsetMillis(in.readShort() * ONE_MINUTE));

    case FLOAT:
        return Float.valueOf(in.readFloat());

    case DOUBLE:
        return Double.valueOf(in.readDouble());

    case BIGINTEGER:
        return readBigInteger(in);

    case BIGDECIMAL:
        return readBigDecimal(in);

    case BOOLEAN_TRUE:
        return Boolean.valueOf(true);

    case BOOLEAN_FALSE:
        return Boolean.valueOf(false);

    case BYTE:
        return Byte.valueOf(in.readByte());

    case TINYBYTEARRAY:
    case SMALLBYTEARRAY:
    case BYTEARRAY:
        return new DataByteArray(SedesHelper.readBytes(in, type));

    case CHARARRAY:
    case SMALLCHARARRAY:
        return SedesHelper.readChararray(in, type);

    case GENERIC_WRITABLECOMPARABLE:
        return readWritable(in);

    case SCHEMA_TUPLE_BYTE_INDEX:
    case SCHEMA_TUPLE_SHORT_INDEX:
    case SCHEMA_TUPLE:
        return readSchemaTuple(in, type);

    case NULL:
        return null;

    default:
        throw new RuntimeException("Unexpected data type " + type + " found in stream.");
    }
}

---

From source file:bobs.is.compress.sevenzip.SevenZFile.java

private void readUnpackInfo(final DataInput header, final Archive archive) throws IOException {
    int nid = header.readUnsignedByte();
    if (nid != NID.kFolder) {
        throw new IOException("Expected kFolder, got " + nid);
    }//from ww w.  j a  va2 s  .  c o  m
    final long numFolders = readUint64(header);
    final Folder[] folders = new Folder[(int) numFolders];
    archive.folders = folders;
    final int external = header.readUnsignedByte();
    if (external != 0) {
        throw new IOException("External unsupported");
    }
    for (int i = 0; i < (int) numFolders; i++) {
        folders[i] = readFolder(header);
    }

    nid = header.readUnsignedByte();
    if (nid != NID.kCodersUnpackSize) {
        throw new IOException("Expected kCodersUnpackSize, got " + nid);
    }
    for (final Folder folder : folders) {
        folder.unpackSizes = new long[(int) folder.totalOutputStreams];
        for (int i = 0; i < folder.totalOutputStreams; i++) {
            folder.unpackSizes[i] = readUint64(header);
        }
    }

    nid = header.readUnsignedByte();
    if (nid == NID.kCRC) {
        final BitSet crcsDefined = readAllOrBits(header, (int) numFolders);
        for (int i = 0; i < (int) numFolders; i++) {
            if (crcsDefined.get(i)) {
                folders[i].hasCrc = true;
                folders[i].crc = 0xffffFFFFL & Integer.reverseBytes(header.readInt());
            } else {
                folders[i].hasCrc = false;
            }
        }

        nid = header.readUnsignedByte();
    }

    if (nid != NID.kEnd) {
        throw new IOException("Badly terminated UnpackInfo");
    }
}

---

From source file:org.apache.geode.internal.InternalDataSerializer.java

/**
 * Read the data from in and register it with this class. TODO: loadRegistrations is unused
 * /*from ww  w .  j a  va2s. c om*/
 * @throws IllegalArgumentException if a registration fails
 */
public static void loadRegistrations(DataInput in) throws IOException {
    while (in.readInt() != 0) {
        Class dsClass = null;
        boolean skip = false;
        try {
            dsClass = DataSerializer.readClass(in);
        } catch (ClassNotFoundException ignored) {
            skip = true;
        }
        if (skip) {
            continue;
        }
        register(dsClass, /* dsId, */ true);
    }
}

---

From source file:org.apache.geode.internal.InternalDataSerializer.java

/** read a set of Long objects */
public static Set<Long> readSetOfLongs(DataInput in) throws IOException {
    int size = in.readInt();
    if (size < 0) {
        return null;
    } else {//from   w ww. j  a va2s  .c o  m
        Set result = new HashSet(size);
        boolean longIDs = in.readBoolean();
        for (int i = 0; i < size; i++) {
            long l = longIDs ? in.readLong() : in.readInt();
            result.add(l);
        }
        return result;
    }
}

---

From source file:org.apache.geode.internal.InternalDataSerializer.java

/** read a set of Long objects */
public static List<Long> readListOfLongs(DataInput in) throws IOException {
    int size = in.readInt();
    if (size < 0) {
        return null;
    } else {/*w  w  w  . ja  v a  2s  .  c  om*/
        List result = new LinkedList();
        boolean longIDs = in.readBoolean();
        for (int i = 0; i < size; i++) {
            long l = longIDs ? in.readLong() : in.readInt();
            result.add(l);
        }
        return result;
    }
}

---

From source file:org.apache.geode.internal.InternalDataSerializer.java

private static Object readPdxSerializable(final DataInput in) throws IOException, ClassNotFoundException {
    int len = in.readInt();
    int typeId = in.readInt();

    InternalCache internalCache = GemFireCacheImpl
            .getForPdx("PDX registry is unavailable because the Cache has been closed.");
    PdxType pdxType = internalCache.getPdxRegistry().getType(typeId);
    if (logger.isTraceEnabled(LogMarker.SERIALIZER)) {
        logger.trace(LogMarker.SERIALIZER, "readPdxSerializable pdxType={}", pdxType);
    }/*from   w  ww .  j a  v a 2  s . co m*/
    if (pdxType == null) {
        throw new IllegalStateException("Unknown pdx type=" + typeId);
    }

    DMStats dmStats = getDMStats(internalCache);
    dmStats.incPdxDeserialization(len + 9);

    // check if PdxInstance needs to be returned.
    if (pdxType.getNoDomainClass() || internalCache.getPdxReadSerializedByAnyGemFireServices()) {
        dmStats.incPdxInstanceCreations();
        return new PdxInstanceImpl(pdxType, in, len);
    } else {
        PdxReaderImpl pdxReader = new PdxReaderImpl(pdxType, in, len);
        return pdxReader.getObject();
    }
}

---

From source file:org.apache.hadoop.mapred.ReduceTask.java

@Override
public void readFields(DataInput in) throws IOException {
    super.readFields(in);

    numMaps = in.readInt();
}

---

From source file:org.apache.hadoop.mapred.RecoverReducerTask.java

@Override
public void readFields(DataInput in) throws IOException {
    super.readFields(in);
    numMaps = in.readInt();
}

---

From source file:hybridewah.HybridBitmap.java

/**
 * Deserialize./*  w w w  .  j  a v  a2  s  .  c  o  m*/
 * 
 * @param in
 *          the DataInput stream
 * @throws IOException
 *           Signals that an I/O exception has occurred.
 */
public void deserialize(DataInput in) throws IOException {
    this.sizeinbits = in.readInt();
    this.actualsizeinwords = in.readInt();
    if (this.buffer.length < this.actualsizeinwords) {
        this.buffer = new long[this.actualsizeinwords];
    }
    for (int k = 0; k < this.actualsizeinwords; ++k)
        this.buffer[k] = in.readLong();
    this.rlw = new RunningLengthWord(this.buffer, in.readInt());
}

---

From source file:org.apache.geode.internal.InternalDataSerializer.java

/**
 * Write a variable length long the old way (pre 7.0). Use this only in contexts where you might
 * need to communicate with pre 7.0 members or files.
 *//*from w ww.j a  v a2 s .c o m*/
public static long readVLOld(DataInput in) throws IOException {
    byte code = in.readByte();
    long result;
    if (code < 0) {
        // mask off sign bit
        result = code & 0x7F;
        result <<= 8;
        result |= in.readByte() & 0xFF;
    } else if (code <= MAX_BYTE_VL) {
        result = code;
    } else if (code == INT_VL) {
        result = in.readInt();
    } else if (code == LONG_VL) {
        result = in.readLong();
    } else {
        throw new IllegalStateException("unexpected variable length code=" + code);
    }
    return result;
}

---

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