Example usage for java.io DataInput readByte

Introduction

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

Prototype

byte readByte() throws IOException;

Source Link

Document

Reads and returns one input byte.

Usage

From source file:com.mapr.hbase.support.objects.MHRegionInfo.java

@Override
public void readFields(DataInput in) throws IOException {
    // Read the single version byte.  We don't ask the super class do it
    // because freaks out if its not the current classes' version.  This method
    // can deserialize version 0 and version 1 of HRI.
    byte version = in.readByte();
    if (version == 0) {
        // This is the old HRI that carried an HTD.  Migrate it.  The below
        // was copied from the old 0.90 HRI readFields.
        this.endKey = Bytes.readByteArray(in);
        this.offLine = in.readBoolean();
        this.regionId = in.readLong();
        this.regionName = Bytes.readByteArray(in);
        this.regionNameStr = Bytes.toStringBinary(this.regionName);
        this.split = in.readBoolean();
        this.startKey = Bytes.readByteArray(in);
        try {/*ww w. ja v  a 2 s  .  c  o  m*/
            tableDesc = new HTableDescriptor();
            tableDesc.readFields(in);
            this.tableName = tableDesc.getName();
        } catch (EOFException eofe) {
            throw new IOException("HTD not found in input buffer", eofe);
        }
        this.hashCode = in.readInt();
    } else if (getVersion() == version) {
        this.endKey = Bytes.readByteArray(in);
        this.offLine = in.readBoolean();
        this.regionId = in.readLong();
        this.regionName = Bytes.readByteArray(in);
        this.regionNameStr = Bytes.toStringBinary(this.regionName);
        this.split = in.readBoolean();
        this.startKey = Bytes.readByteArray(in);
        this.tableName = Bytes.readByteArray(in);
        this.hashCode = in.readInt();
    } else {
        throw new IOException("Non-migratable/unknown version=" + getVersion());
    }
}

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From source file:edu.msu.cme.rdp.readseq.readers.core.SFFCore.java

private void parseCommonHeader() throws IOException {
    if (commonHeader != null) {
        throw new IOException("Common header already initialized");
    }/*ww  w .  j a va 2  s.co  m*/
    commonHeader = new CommonHeader();

    DataInput seqFile = super.getDataInput();

    commonHeader.magicNumber = seqFile.readInt();

    if (commonHeader.magicNumber != SeqUtils.SFF_MAGIC_NUMBER) {
        throw new IOException("Not an SFF File");
    }

    commonHeader.version = seqFile.readInt();

    if (commonHeader.version != 1) {
        throw new IOException("Cannot parse v" + commonHeader.version + " sff files");
    }

    commonHeader.indexOffset = seqFile.readLong();
    commonHeader.indexLength = seqFile.readInt();
    commonHeader.numReads = seqFile.readInt();
    commonHeader.headerLength = seqFile.readShort();
    commonHeader.keyLength = seqFile.readShort();
    commonHeader.flowLength = seqFile.readShort();
    commonHeader.flowgramFormat = seqFile.readByte();

    byte[] flow = new byte[commonHeader.flowLength];
    super.read(flow);
    commonHeader.flow = new String(flow);

    byte[] key = new byte[commonHeader.keyLength];
    super.read(key);
    commonHeader.key = new String(key);

    int readBytes = COMMON_HEADER_STATIC_SIZE + flow.length + key.length;

    alignToBoundary(readBytes);

    if (super.isSeekable() && commonHeader.indexOffset > commonHeader.headerLength) {
        readIndex();
    }
}

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From source file:com.marklogic.tree.ExpandedTree.java

@Override
public void readFields(DataInput in) throws IOException {
    uriKey = in.readLong();//from ww  w.j av  a 2  s . c  om
    uniqKey = in.readLong();
    linkKey = in.readLong();
    numKeys = in.readInt();
    if (numKeys > 0) {
        keys = new long[numKeys];
        for (int i = 0; i < numKeys; i++) {
            keys[i] = in.readLong();
        }
    }
    int atomDataLen = in.readInt();
    if (atomDataLen > 0) {
        atomData = new byte[atomDataLen];
        for (int i = 0; i < atomDataLen; i++) {
            atomData[i] = in.readByte();
        }
    }
    atomLimit = in.readInt();
    if (atomLimit > 0) {
        atomIndex = new int[atomLimit + 1];
        for (int i = 0; i < atomLimit + 1; i++) {
            atomIndex[i] = in.readInt();
        }
    }
    int nodeNameNameAtomLen = in.readInt();
    if (nodeNameNameAtomLen > 0) {
        nodeNameNameAtom = new int[nodeNameNameAtomLen];
        nodeNameNamespaceAtom = new int[nodeNameNameAtomLen];
        for (int i = 0; i < nodeNameNameAtomLen; i++) {
            nodeNameNameAtom[i] = in.readInt();
            nodeNameNamespaceAtom[i] = in.readInt();
        }
    }
    numNodeReps = in.readInt();
    if (numNodeReps > 0) {
        nodes = new NodeImpl[numNodeReps];
        nodeOrdinal = new long[numNodeReps];
        nodeKind = new byte[numNodeReps];
        nodeRepID = new int[numNodeReps];
        nodeParentNodeRepID = new int[numNodeReps];
        for (int i = 0; i < numNodeReps; i++) {
            nodeOrdinal[i] = in.readLong();
            nodeKind[i] = in.readByte();
            nodeRepID[i] = in.readInt();
            nodeParentNodeRepID[i] = in.readInt();
        }
    }
    int numElemNodeReps = in.readInt();
    if (numElemNodeReps > 0) {
        elemNodeNodeNameRepID = new int[numElemNodeReps];
        elemNodeAttrNodeRepID = new int[numElemNodeReps];
        elemNodeChildNodeRepID = new int[numElemNodeReps];
        elemNodeElemDeclRepID = new int[numElemNodeReps];
        elemNodeNumAttributes = new int[numElemNodeReps];
        elemNodeNumDefaultAttrs = new int[numElemNodeReps];
        elemNodeNumChildren = new int[numElemNodeReps];
        elemNodeFlags = new int[numElemNodeReps];
        for (int i = 0; i < numElemNodeReps; i++) {
            elemNodeNodeNameRepID[i] = in.readInt();
            elemNodeAttrNodeRepID[i] = in.readInt();
            elemNodeChildNodeRepID[i] = in.readInt();
            elemNodeElemDeclRepID[i] = in.readInt();
            elemNodeNumAttributes[i] = in.readInt();
            elemNodeNumDefaultAttrs[i] = in.readInt();
            elemNodeNumChildren[i] = in.readInt();
            elemNodeFlags[i] = in.readInt();
        }
    }
    int numAttrNodeReps = in.readInt();
    if (numAttrNodeReps > 0) {
        attrNodeNodeNameRepID = new int[numAttrNodeReps];
        attrNodeTextRepID = new int[numAttrNodeReps];
        attrNodeAttrDeclRepID = new int[numAttrNodeReps];
        for (int i = 0; i < numAttrNodeReps; i++) {
            attrNodeNodeNameRepID[i] = in.readInt();
            attrNodeTextRepID[i] = in.readInt();
            attrNodeAttrDeclRepID[i] = in.readInt();
        }
    }
    numLinkNodeReps = in.readInt();
    if (numLinkNodeReps > 0) {
        linkNodeKey = new long[numLinkNodeReps];
        linkNodeNodeCount = new long[numLinkNodeReps];
        linkNodeNodeNameRepID = new int[numLinkNodeReps];
        linkNodeNodeRepID = new int[numLinkNodeReps];
        for (int i = 0; i < numLinkNodeReps; i++) {
            linkNodeKey[i] = in.readLong();
            linkNodeNodeCount[i] = in.readLong();
            linkNodeNodeNameRepID[i] = in.readInt();
            linkNodeNodeRepID[i] = in.readInt();
        }
    }
    int numDocNodeReps = in.readInt();
    if (numDocNodeReps > 0) {
        docNodeTextRepID = new int[numDocNodeReps];
        docNodeChildNodeRepID = new int[numDocNodeReps];
        docNodeNumChildren = new int[numDocNodeReps];
        for (int i = 0; i < numDocNodeReps; i++) {
            docNodeTextRepID[i] = in.readInt();
            docNodeChildNodeRepID[i] = in.readInt();
            docNodeNumChildren[i] = in.readInt();
        }
    }
    int numPINodeReps = in.readInt();
    if (numPINodeReps > 0) {
        piNodeTargetAtom = new int[numPINodeReps];
        piNodeTextRepID = new int[numPINodeReps];
        for (int i = 0; i < numPINodeReps; i++) {
            piNodeTargetAtom[i] = in.readInt();
            piNodeTextRepID[i] = in.readInt();
        }
    }
    numNSNodeReps = in.readInt();
    if (numNSNodeReps > 0) {
        nsNodeOrdinal = new long[numNSNodeReps];
        nsNodePrevNSNodeRepID = new int[numNSNodeReps];
        nsNodePrefixAtom = new int[numNSNodeReps];
        nsNodeUriAtom = new int[numNSNodeReps];
        for (int i = 0; i < numNSNodeReps; i++) {
            nsNodeOrdinal[i] = in.readLong();
            nsNodePrevNSNodeRepID[i] = in.readInt();
            nsNodePrefixAtom[i] = in.readInt();
            nsNodeUriAtom[i] = in.readInt();
        }
    }
    // skip permission node since it's not exposed to the API
    uriTextRepID = in.readInt();
    colsTextRepID = in.readInt();
    numTextReps = in.readInt();
    if (numTextReps > 0) {
        textReps = new int[numTextReps];
        for (int i = 0; i < numTextReps; i++) {
            textReps[i] = in.readInt();
        }
    }
    int numArrayNodeReps = in.readInt();
    if (numArrayNodeReps > 0) {
        arrayNodeTextRepID = new int[numArrayNodeReps];
        arrayNodeChildNodeRepID = new int[numArrayNodeReps];
        arrayNodeNumChildren = new int[numArrayNodeReps];
        for (int i = 0; i < numArrayNodeReps; i++) {
            arrayNodeTextRepID[i] = in.readInt();
            arrayNodeChildNodeRepID[i] = in.readInt();
            arrayNodeNumChildren[i] = in.readInt();
        }
    }
    int numDoubles = in.readInt();
    if (numDoubles > 0) {
        doubles = new double[numDoubles];
        for (int i = 0; i < numDoubles; i++) {
            doubles[i] = in.readDouble();
        }
    }
}

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From source file:dk.statsbiblioteket.util.LineReaderTest.java

public void testSample(String type, DataInput in) throws Exception {
    assertEquals("Int 1 should work for " + type, 12345, in.readInt());
    assertEquals("Int 2 should work for " + type, -87, in.readInt());
    assertEquals("Long should work for " + type, 123456789L, in.readLong());
    assertEquals("String 1 should work for " + type, "Hello World!", in.readLine());
    assertEquals("String 2 should work for " + type, "Another world", in.readLine());
    assertEquals("Float should work for " + type, 0.5f, in.readFloat());
    assertEquals("Boolean 1 should work for " + type, true, in.readBoolean());
    assertEquals("Boolean 2 should work for " + type, false, in.readBoolean());
    assertEquals("Byte 1 should work for " + type, (byte) 12, in.readByte());
    assertEquals("Byte 2 should work for " + type, (byte) -12, in.readByte());
    assertEquals("Unsigned byte should work for " + type, 129, in.readUnsignedByte());
    assertEquals("Short should work for " + type, -4567, in.readShort());
    byte[] loaded = new byte[5];
    byte[] expected = new byte[] { (byte) 'A', (byte) 'S', (byte) 'C', (byte) 'I', (byte) 'I' };
    in.readFully(loaded);/*w w  w .  j  av  a 2 s  . c  o m*/
    for (int i = 0; i < loaded.length; i++) {
        assertEquals("Byte-stored string should be equal at byte " + i + " for " + type, expected[i],
                loaded[i]);
    }
}

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From source file:com.ebay.erl.mobius.core.model.Tuple.java

/**
 * Deserialize the tuple from the input/*from w w  w.  j a va2  s.  co  m*/
 * <code>in</code>.
 */
@Override
public void readFields(DataInput in) throws IOException {
    if (this.values == null) {
        this.values = new ArrayList<Object>();
    } else
        this.values.clear();

    int columns_nbrs = in.readInt();

    ReadFieldImpl read_impl = new ReadFieldImpl(this.values, in, this.conf);

    for (int i = 0; i < columns_nbrs; i++) {
        byte type = in.readByte();
        read_impl.handle(type);
    }
}

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From source file:com.ibm.bi.dml.runtime.matrix.data.MatrixBlock.java

@Override
public void readFields(DataInput in) throws IOException {
    //read basic header (int rlen, int clen, byte type)
    rlen = in.readInt();/*from   ww w.  j  av  a  2 s .  c om*/
    clen = in.readInt();
    byte bformat = in.readByte();

    //check type information
    if (bformat < 0 || bformat >= BlockType.values().length)
        throw new IOException(
                "invalid format: '" + bformat + "' (need to be 0-" + BlockType.values().length + ").");

    BlockType format = BlockType.values()[bformat];
    try {
        switch (format) {
        case ULTRA_SPARSE_BLOCK:
            nonZeros = readNnzInfo(in, true);
            sparse = evalSparseFormatInMemory(rlen, clen, nonZeros);
            cleanupBlock(true, true); //clean all
            if (sparse)
                readUltraSparseBlock(in);
            else
                readUltraSparseToDense(in);
            break;
        case SPARSE_BLOCK:
            nonZeros = readNnzInfo(in, false);
            sparse = evalSparseFormatInMemory(rlen, clen, nonZeros);
            cleanupBlock(sparse, !sparse);
            if (sparse)
                readSparseBlock(in);
            else
                readSparseToDense(in);
            break;
        case DENSE_BLOCK:
            sparse = false;
            cleanupBlock(false, true); //reuse dense
            readDenseBlock(in); //always dense in-mem if dense on disk
            break;
        case EMPTY_BLOCK:
            sparse = true;
            cleanupBlock(true, true); //clean all
            nonZeros = 0;
            break;
        }
    } catch (DMLRuntimeException ex) {
        throw new IOException("Error reading block of type '" + format.toString() + "'.", ex);
    }
}

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From source file:org.ambud.marauder.source.ids.pcap.layer3.ARP.java

@Override
public void decode(DataInput di, EtherFrame parent) throws IOException {
    this.parent = parent;
    this.hardType = di.readShort();
    this.protoType = di.readShort();
    this.hardSize = di.readByte();
    this.protoAddrSize = di.readByte();
    this.opCode = di.readShort();
    di.readFully(senderEthAddr);/* www. j  av a2 s . co m*/
    this.senderIP = di.readInt();
    di.readFully(targetEthAddr);
    this.targetIP = di.readInt();
}

---

From source file:org.ambud.marauder.source.ids.pcap.layer3.IPv6.java

@Override
public void decode(DataInput di, EtherFrame parent) throws IOException {
    this.parent = parent;
    byte[] tempBytes = new byte[4];
    di.readFully(tempBytes);/*from w w  w  .  j av  a 2 s.c o m*/
    this.version = (byte) ((tempBytes[0] >> 4) & 0xff);
    this.trafficClass = (byte) ((tempBytes[0] << 4) | ((tempBytes[1] >> 4) & 0xff));
    this.flowLbl = (byte) ((((int) (tempBytes[1] << 4) & 0xffff) << 16) | (((short) tempBytes[2] << 8) & 0xff)
            | (tempBytes[3] & 0xff));
    this.payloadLength = EtherFrame.readShort(di);
    this.nextHdr = di.readByte();
    this.hopLimit = di.readByte();
    di.readFully(this.srcIP);
    di.readFully(this.dstIP);
    decodeNextLayer(di);
}

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From source file:org.apache.cassandra.utils.ByteBufferUtil.java

private static int readShortLength(DataInput in) throws IOException {
    int length = (in.readByte() & 0xFF) << 8;
    return length | (in.readByte() & 0xFF);
}

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From source file:org.apache.geode.internal.cache.DiskInitFile.java

static long readDiskRegionID(DataInput dis) throws IOException {
    int bytesToRead = dis.readUnsignedByte();
    if (bytesToRead <= DiskStoreImpl.MAX_RESERVED_DRID && bytesToRead >= DiskStoreImpl.MIN_RESERVED_DRID) {
        long result = dis.readByte(); // we want to sign extend this first byte
        bytesToRead--;/*from   ww  w  . ja v  a 2  s  .co m*/
        while (bytesToRead > 0) {
            result <<= 8;
            result |= dis.readUnsignedByte(); // no sign extension
            bytesToRead--;
        }
        return result;
    } else {
        return bytesToRead;
    }
}

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