Example usage for java.io DataOutput writeBoolean

Introduction

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

Prototype

void writeBoolean(boolean v) throws IOException;

Source Link

Document

Writes a boolean value to this output stream.

Usage

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

/** Write a {@link CWritable}, {@link String}, primitive type, or an array of
 * the preceding. */// ww w .  j a v  a  2s  .c  o m
public static void writeObject(DataOutput out, Object instance, Class declaredClass, CloudataConf conf,
        boolean arrayComponent) throws IOException {

    if (instance == null) { // null
        instance = new NullInstance(declaredClass, conf);
        declaredClass = CWritable.class;
        arrayComponent = false;
    }

    if (!arrayComponent) {
        CUTF8.writeString(out, declaredClass.getName()); // always write declared
        //System.out.println("Write:declaredClass.getName():" + declaredClass.getName());
    }

    if (declaredClass.isArray()) { // array
        int length = Array.getLength(instance);
        out.writeInt(length);
        //System.out.println("Write:length:" + length);

        if (declaredClass.getComponentType() == Byte.TYPE) {
            out.write((byte[]) instance);
        } else if (declaredClass.getComponentType() == ColumnValue.class) {
            //ColumnValue?  Deserialize? ?? ?   ?? ?  .
            writeColumnValue(out, instance, declaredClass, conf, length);
        } else {
            for (int i = 0; i < length; i++) {
                writeObject(out, Array.get(instance, i), declaredClass.getComponentType(), conf,
                        !declaredClass.getComponentType().isArray());
            }
        }
    } else if (declaredClass == String.class) { // String
        CUTF8.writeString(out, (String) instance);

    } else if (declaredClass.isPrimitive()) { // primitive type

        if (declaredClass == Boolean.TYPE) { // boolean
            out.writeBoolean(((Boolean) instance).booleanValue());
        } else if (declaredClass == Character.TYPE) { // char
            out.writeChar(((Character) instance).charValue());
        } else if (declaredClass == Byte.TYPE) { // byte
            out.writeByte(((Byte) instance).byteValue());
        } else if (declaredClass == Short.TYPE) { // short
            out.writeShort(((Short) instance).shortValue());
        } else if (declaredClass == Integer.TYPE) { // int
            out.writeInt(((Integer) instance).intValue());
        } else if (declaredClass == Long.TYPE) { // long
            out.writeLong(((Long) instance).longValue());
        } else if (declaredClass == Float.TYPE) { // float
            out.writeFloat(((Float) instance).floatValue());
        } else if (declaredClass == Double.TYPE) { // double
            out.writeDouble(((Double) instance).doubleValue());
        } else if (declaredClass == Void.TYPE) { // void
        } else {
            throw new IllegalArgumentException("Not a primitive: " + declaredClass);
        }
    } else if (declaredClass.isEnum()) { // enum
        CUTF8.writeString(out, ((Enum) instance).name());
    } else if (CWritable.class.isAssignableFrom(declaredClass)) { // Writable
        if (instance.getClass() == declaredClass) {
            out.writeShort(TYPE_SAME); // ? ?? ? ?? 
            //System.out.println("Write:TYPE_SAME:" + TYPE_SAME);

        } else {
            out.writeShort(TYPE_DIFF);
            //System.out.println("Write:TYPE_DIFF:" + TYPE_DIFF);
            CUTF8.writeString(out, instance.getClass().getName());
            //System.out.println("Write:instance.getClass().getName():" + instance.getClass().getName());
        }
        ((CWritable) instance).write(out);
        //System.out.println("Write:instance value");

    } else {
        throw new IOException("Can't write: " + instance + " as " + declaredClass);
    }
}

From source file:parquet.hadoop.ParquetInputSplit.java

private void writeBlock(DataOutput out, BlockMetaData block) throws IOException {
    out.writeInt(block.getColumns().size());
    for (ColumnChunkMetaData column : block.getColumns()) {
        writeColumn(out, column);/*  www  .j  a v a 2  s.  co  m*/
    }
    out.writeLong(block.getRowCount());
    out.writeLong(block.getTotalByteSize());
    out.writeBoolean(block.getPath() == null);
    if (block.getPath() != null) {
        out.writeUTF(block.getPath());
    }
}

From source file:PFPGrowth_in_SPARK.TransactionTree.java

public void write(DataOutput out) throws IOException {
    out.writeBoolean(representedAsList);
    VIntWritable vInt = new VIntWritable();
    VLongWritable vLong = new VLongWritable();
    if (representedAsList) {
        int transactionSetSize = transactionSet.size();
        vInt.set(transactionSetSize);//from ww w  . j a  v  a2 s  .  c  om
        vInt.write(out);
        for (Pair<IntArrayList, Long> transaction : transactionSet) {
            vLong.set(transaction.getSecond());
            vLong.write(out);

            vInt.set(transaction.getFirst().size());
            vInt.write(out);

            IntArrayList items = transaction.getFirst();
            for (int idx = 0; idx < items.size(); idx++) {
                int item = items.get(idx);
                vInt.set(item);
                vInt.write(out);
            }
        }
    } else {
        vInt.set(nodes);
        vInt.write(out);
        for (int i = 0; i < nodes; i++) {
            vInt.set(attribute[i]);
            vInt.write(out);
            vLong.set(nodeCount[i]);
            vLong.write(out);
            vInt.set(childCount[i]);
            vInt.write(out);
            int max = childCount[i];
            for (int j = 0; j < max; j++) {
                vInt.set(nodeChildren[i][j]);
                vInt.write(out);
            }
        }
    }
}

From source file:uk.ac.gla.terrier.probos.Utils.java

public static void writeStringOrNull(DataOutput out, String s) throws IOException {
    if (s == null) {
        out.writeBoolean(false);
    } else {/*from   w w w .  j  a  v a 2 s .  c om*/
        out.writeBoolean(true);
        out.writeUTF(s);
    }
}