Example usage for java.io DataInput readBoolean

Introduction

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

Prototype

boolean readBoolean() throws IOException;

Source Link

Document

Reads one input byte and returns true if that byte is nonzero, false if that byte is zero.

Usage

From source file:org.apache.marmotta.kiwi.io.KiWiIO.java

/**
 * Read a KiWiTriple serialized with writeTriple from a DataInput source
 *
 * @param input the source// ww w  .jav a 2  s.  c  o m
 * @return the de-serialized KiWiTriple
 * @throws IOException
 */
public static KiWiTriple readTriple(DataInput input) throws IOException {
    KiWiTriple result = new KiWiTriple();
    result.setId(input.readLong());

    int mode = input.readByte();
    if (mode == MODE_PREFIX) {
        String prefix = DataIO.readString(input);

        long sId = input.readLong();
        String sUri = prefix + DataIO.readString(input);
        long sTime = input.readLong();
        KiWiUriResource s = new KiWiUriResource(sUri);
        s.setId(sId);
        s.setCreated(new Date(sTime));
        result.setSubject(s);

        result.setPredicate(readURI(input));

        long oId = input.readLong();
        String oUri = prefix + DataIO.readString(input);
        long oTime = input.readLong();
        KiWiUriResource o = new KiWiUriResource(oUri);
        o.setId(oId);
        o.setCreated(new Date(oTime));
        result.setObject(o);

    } else {
        result.setSubject((KiWiResource) readNode(input));
        result.setPredicate(readURI(input));
        result.setObject(readNode(input));
    }
    result.setContext((KiWiResource) readNode(input));
    result.setCreator((KiWiResource) readNode(input));
    result.setDeleted(input.readBoolean());
    result.setInferred(input.readBoolean());
    result.setNewTriple(input.readBoolean());

    result.setCreated(new Date(input.readLong()));

    long deletedAt = input.readLong();
    if (deletedAt > 0) {
        result.setDeletedAt(new Date(deletedAt));
    }

    return result;

}

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From source file:org.apache.nutch.crawl.CrawlDatum.java

public void readFields(DataInput in) throws IOException {
    byte version = in.readByte(); // read version
    if (version > CUR_VERSION) // check version
        throw new VersionMismatchException(CUR_VERSION, version);

    status = in.readByte();//from   w  w w.j  a  va  2  s.c om
    fetchTime = in.readLong();
    retries = in.readByte();
    if (version > 5) {
        fetchInterval = in.readInt();
    } else
        fetchInterval = Math.round(in.readFloat());
    score = in.readFloat();
    if (version > 2) {
        modifiedTime = in.readLong();
        int cnt = in.readByte();
        if (cnt > 0) {
            signature = new byte[cnt];
            in.readFully(signature);
        } else
            signature = null;
    }

    if (version > 3) {
        boolean hasMetadata = false;
        if (version < 7) {
            org.apache.hadoop.io.MapWritable oldMetaData = new org.apache.hadoop.io.MapWritable();
            if (in.readBoolean()) {
                hasMetadata = true;
                metaData = new org.apache.hadoop.io.MapWritable();
                oldMetaData.readFields(in);
            }
            for (Writable key : oldMetaData.keySet()) {
                metaData.put(key, oldMetaData.get(key));
            }
        } else {
            if (in.readBoolean()) {
                hasMetadata = true;
                metaData = new org.apache.hadoop.io.MapWritable();
                metaData.readFields(in);
            }
        }
        if (hasMetadata == false)
            metaData = null;
    }
    // translate status codes
    if (version < 5) {
        if (oldToNew.containsKey(status))
            status = oldToNew.get(status);
        else
            status = STATUS_DB_UNFETCHED;

    }
}

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From source file:org.apache.oozie.coord.input.dependency.AbstractCoordInputDependency.java

@Override
public void readFields(DataInput in) throws IOException {
    WritableUtils.readBytesAsString(in);
    this.isDependencyMet = in.readBoolean();
    dependencyMap = WritableUtils.readMapWithList(in, CoordInputInstance.class);
    generateDependencies();//from ww w .  j av a2  s .  co  m
}

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From source file:org.apache.oozie.coord.input.dependency.CoordUnResolvedInputDependency.java

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

    isResolved = in.readBoolean();
    dependency = WritableUtils.readStringList(in);
    resolvedList = WritableUtils.readStringList(in);
}

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

public static Object readDatum(DataInput in, byte type) throws IOException, ExecException {
    switch (type) {
    case DataType.TUPLE:
        return bytesToTuple(in);

    case DataType.BAG:
        return bytesToBag(in);

    case DataType.MAP:
        return bytesToMap(in);

    case DataType.INTERNALMAP:
        return bytesToInternalMap(in);

    case DataType.INTEGER:
        return Integer.valueOf(in.readInt());

    case DataType.LONG:
        return Long.valueOf(in.readLong());

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

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

    case DataType.BOOLEAN:
        return Boolean.valueOf(in.readBoolean());

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

    case DataType.BYTEARRAY: {
        int size = in.readInt();
        byte[] ba = new byte[size];
        in.readFully(ba);//www. j  av  a 2s. com
        return new DataByteArray(ba);
    }

    case DataType.BIGCHARARRAY:
        return bytesToBigCharArray(in);

    case DataType.CHARARRAY:
        return bytesToCharArray(in);

    case DataType.GENERIC_WRITABLECOMPARABLE:
        return bytesToWritable(in);

    case DataType.NULL:
        return null;

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

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From source file:org.apache.rya.accumulo.mr.RyaStatementWritable.java

/**
 * Read part of a statement from an input stream.
 * @param dataInput Stream for reading serialized statements.
 * @return The next individual field, as a byte array.
 * @throws IOException if reading from the stream fails.
 *//*from   w  ww.  j av  a 2  s  . c  o m*/
protected byte[] read(DataInput dataInput) throws IOException {
    if (dataInput.readBoolean()) {
        int len = dataInput.readInt();
        byte[] bytes = new byte[len];
        dataInput.readFully(bytes);
        return bytes;
    } else {
        return null;
    }
}

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From source file:org.apache.rya.accumulo.mr.RyaStatementWritable.java

/**
 * Loads a RyaStatementWritable by reading data from an input stream.
 * Creates a new RyaStatement and assigns it to this RyaStatementWritable.
 * @param   dataInput   An stream containing serialized statement data.
 *//*from www.j a v a2 s .  co m*/
@Override
public void readFields(DataInput dataInput) throws IOException {
    byte[] row = read(dataInput);
    byte[] columnFamily = read(dataInput);
    byte[] columnQualifier = read(dataInput);
    byte[] columnVisibility = read(dataInput);
    byte[] value = read(dataInput);
    boolean b = dataInput.readBoolean();
    Long timestamp = null;
    if (b) {
        timestamp = dataInput.readLong();
    }
    try {
        ryaStatement = ryaContext.deserializeTriple(RdfCloudTripleStoreConstants.TABLE_LAYOUT.SPO,
                new TripleRow(row, columnFamily, columnQualifier));
        ryaStatement.setColumnVisibility(columnVisibility);
        ryaStatement.setValue(value);
        ryaStatement.setTimestamp(timestamp);
    } catch (TripleRowResolverException e) {
        throw new IOException(e);
    }
}

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From source file:org.apache.sysml.runtime.compress.CompressedMatrixBlock.java

@Override
public void readFields(DataInput in) throws IOException {
    boolean compressed = in.readBoolean();

    //deserialize uncompressed block
    if (!compressed) {
        super.readFields(in);
        return;/*from  w  w  w.  j a  va2 s  . c  om*/
    }

    //deserialize compressed block
    rlen = in.readInt();
    clen = in.readInt();
    nonZeros = in.readLong();
    int ncolGroups = in.readInt();

    _colGroups = new ArrayList<ColGroup>(ncolGroups);
    for (int i = 0; i < ncolGroups; i++) {
        CompressionType ctype = CompressionType.values()[in.readByte()];
        ColGroup grp = null;

        //create instance of column group
        switch (ctype) {
        case UNCOMPRESSED:
            grp = new ColGroupUncompressed();
            break;
        case OLE_BITMAP:
            grp = new ColGroupOLE();
            break;
        case RLE_BITMAP:
            grp = new ColGroupRLE();
            break;
        }

        //deserialize and add column group
        grp.readFields(in);
        _colGroups.add(grp);
    }
}

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From source file:org.apache.sysml.runtime.matrix.data.FrameBlock.java

@Override
public void readFields(DataInput in) throws IOException {
    //read head (rows, cols)
    _numRows = in.readInt();// w w  w.  j  a v  a2  s .co m
    int numCols = in.readInt();
    boolean isDefaultMeta = in.readBoolean();
    //allocate schema/meta data arrays
    _schema = (_schema != null && _schema.length == numCols) ? _schema : new ValueType[numCols];
    _colnames = (_colnames != null && _colnames.length == numCols) ? _colnames : new String[numCols];
    _colmeta = (_colmeta != null && _colmeta.length == numCols) ? _colmeta : new ColumnMetadata[numCols];
    _coldata = (_coldata != null && _coldata.length == numCols) ? _coldata : new Array[numCols];
    //read columns (value type, meta, data)
    for (int j = 0; j < numCols; j++) {
        ValueType vt = ValueType.values()[in.readByte()];
        String name = isDefaultMeta ? createColName(j) : in.readUTF();
        long ndistinct = isDefaultMeta ? 0 : in.readLong();
        String mvvalue = isDefaultMeta ? null : in.readUTF();
        Array arr = null;
        switch (vt) {
        case STRING:
            arr = new StringArray(new String[_numRows]);
            break;
        case BOOLEAN:
            arr = new BooleanArray(new boolean[_numRows]);
            break;
        case INT:
            arr = new LongArray(new long[_numRows]);
            break;
        case DOUBLE:
            arr = new DoubleArray(new double[_numRows]);
            break;
        default:
            throw new IOException("Unsupported value type: " + vt);
        }
        arr.readFields(in);
        _schema[j] = vt;
        _colnames[j] = name;
        _colmeta[j] = new ColumnMetadata(ndistinct, (mvvalue == null || mvvalue.isEmpty()) ? null : mvvalue);
        _coldata[j] = arr;
    }
}

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From source file:org.cloudata.core.common.io.CObjectWritable.java

/** Read a {@link CWritable}, {@link String}, primitive type, or an array of
 * the preceding. */// ww  w.j a  v  a  2s .c  o  m
@SuppressWarnings("unchecked")
public static Object readObject(DataInput in, CObjectWritable objectWritable, CloudataConf conf,
        boolean arrayComponent, Class componentClass) throws IOException {
    String className;
    if (arrayComponent) {
        className = componentClass.getName();
    } else {
        className = CUTF8.readString(in);
        //SANGCHUL
        //   System.out.println("SANGCHUL] className:" + className);
    }

    Class<?> declaredClass = PRIMITIVE_NAMES.get(className);
    if (declaredClass == null) {
        try {
            declaredClass = conf.getClassByName(className);
        } catch (ClassNotFoundException e) {
            //SANGCHUL
            e.printStackTrace();
            throw new RuntimeException("readObject can't find class[className=" + className + "]", e);
        }
    }

    Object instance;

    if (declaredClass.isPrimitive()) { // primitive types

        if (declaredClass == Boolean.TYPE) { // boolean
            instance = Boolean.valueOf(in.readBoolean());
        } else if (declaredClass == Character.TYPE) { // char
            instance = Character.valueOf(in.readChar());
        } else if (declaredClass == Byte.TYPE) { // byte
            instance = Byte.valueOf(in.readByte());
        } else if (declaredClass == Short.TYPE) { // short
            instance = Short.valueOf(in.readShort());
        } else if (declaredClass == Integer.TYPE) { // int
            instance = Integer.valueOf(in.readInt());
        } else if (declaredClass == Long.TYPE) { // long
            instance = Long.valueOf(in.readLong());
        } else if (declaredClass == Float.TYPE) { // float
            instance = Float.valueOf(in.readFloat());
        } else if (declaredClass == Double.TYPE) { // double
            instance = Double.valueOf(in.readDouble());
        } else if (declaredClass == Void.TYPE) { // void
            instance = null;
        } else {
            throw new IllegalArgumentException("Not a primitive: " + declaredClass);
        }

    } else if (declaredClass.isArray()) { // array
        //System.out.println("SANGCHUL] is array");
        int length = in.readInt();
        //System.out.println("SANGCHUL] array length : " + length);
        //System.out.println("Read:in.readInt():" + length);
        if (declaredClass.getComponentType() == Byte.TYPE) {
            byte[] bytes = new byte[length];
            in.readFully(bytes);
            instance = bytes;
        } else if (declaredClass.getComponentType() == ColumnValue.class) {
            instance = readColumnValue(in, conf, declaredClass, length);
        } else {
            Class componentType = declaredClass.getComponentType();

            // SANGCHUL
            //System.out.println("SANGCHUL] componentType : " + componentType.getName());

            instance = Array.newInstance(componentType, length);
            for (int i = 0; i < length; i++) {
                Object arrayComponentInstance = readObject(in, null, conf, !componentType.isArray(),
                        componentType);
                Array.set(instance, i, arrayComponentInstance);
                //Array.set(instance, i, readObject(in, conf));
            }
        }
    } else if (declaredClass == String.class) { // String
        instance = CUTF8.readString(in);
    } else if (declaredClass.isEnum()) { // enum
        instance = Enum.valueOf((Class<? extends Enum>) declaredClass, CUTF8.readString(in));
    } else if (declaredClass == ColumnValue.class) {
        //ColumnValue?  ?? ?? ?  ? ?.
        //? ?   ? ? ? ? . 
        Class instanceClass = null;
        try {
            short typeDiff = in.readShort();
            if (typeDiff == TYPE_DIFF) {
                instanceClass = conf.getClassByName(CUTF8.readString(in));
            } else {
                instanceClass = declaredClass;
            }
        } catch (ClassNotFoundException e) {
            throw new RuntimeException("readObject can't find class", e);
        }
        ColumnValue columnValue = new ColumnValue();
        columnValue.readFields(in);
        instance = columnValue;
    } else { // Writable

        Class instanceClass = null;
        try {
            short typeDiff = in.readShort();
            // SANGCHUL
            //System.out.println("SANGCHUL] typeDiff : " + typeDiff);
            //System.out.println("Read:in.readShort():" + typeDiff);
            if (typeDiff == TYPE_DIFF) {
                // SANGCHUL
                String classNameTemp = CUTF8.readString(in);
                //System.out.println("SANGCHUL] typeDiff : " + classNameTemp);
                instanceClass = conf.getClassByName(classNameTemp);
                //System.out.println("Read:UTF8.readString(in):" + instanceClass.getClass());
            } else {
                instanceClass = declaredClass;
            }
        } catch (ClassNotFoundException e) {

            // SANGCHUL
            e.printStackTrace();
            throw new RuntimeException("readObject can't find class", e);
        }

        CWritable writable = CWritableFactories.newInstance(instanceClass, conf);
        writable.readFields(in);
        //System.out.println("Read:writable.readFields(in)");
        instance = writable;

        if (instanceClass == NullInstance.class) { // null
            declaredClass = ((NullInstance) instance).declaredClass;
            instance = null;
        }
    }

    if (objectWritable != null) { // store values
        objectWritable.declaredClass = declaredClass;
        objectWritable.instance = instance;
    }

    return instance;
}

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