List of usage examples for java.io DataOutput writeInt
void writeInt(int v) throws IOException;
int value, which is comprised of four bytes, to the output stream. From source file:org.apache.bigtop.bigpetstore.generator.PetStoreTransactionInputSplit.java
public void write(DataOutput dataOutputStream) throws IOException { dataOutputStream.writeInt(records); dataOutputStream.writeUTF(state.name()); dataOutputStream.writeLong(customerIdRange.getMinimum()); dataOutputStream.writeLong(customerIdRange.getMaximum()); }
From source file:org.apache.drill.exec.cache.CachedVectorContainer.java
@Override public void write(DataOutput output) throws IOException { output.writeInt(data.length); output.write(data); }
From source file:edu.nyu.vida.data_polygamy.scalar_function.Median.java
@Override public void write(DataOutput out) throws IOException { out.writeInt(count); out.writeInt(floatValues.size());// w w w .j a v a 2 s . co m for (int i = 0; i < floatValues.size(); i++) out.writeFloat(floatValues.get(i)); }
From source file:org.apache.hadoop.raid.protocol.PolicyList.java
public void write(DataOutput out) throws IOException { out.writeInt(category.size()); for (PolicyInfo p : category) { p.write(out);/*from ww w. j ava 2 s . c om*/ } }
From source file:org.apache.pig.data.DataReaderWriter.java
@SuppressWarnings("unchecked") public static void writeDatum(DataOutput out, Object val) throws IOException { // Read the data type byte type = DataType.findType(val); switch (type) { case DataType.TUPLE: // Because tuples are written directly by hadoop, the // tuple's write method needs to write the indicator byte. // So don't write the indicator byte here as it is for // everyone else. ((Tuple) val).write(out); break;/*from www. j av a 2s. co m*/ case DataType.BAG: out.writeByte(DataType.BAG); ((DataBag) val).write(out); break; case DataType.MAP: { out.writeByte(DataType.MAP); Map<String, Object> m = (Map<String, Object>) val; out.writeInt(m.size()); Iterator<Map.Entry<String, Object>> i = m.entrySet().iterator(); while (i.hasNext()) { Map.Entry<String, Object> entry = i.next(); writeDatum(out, entry.getKey()); writeDatum(out, entry.getValue()); } break; } case DataType.INTERNALMAP: { out.writeByte(DataType.INTERNALMAP); Map<Object, Object> m = (Map<Object, Object>) val; out.writeInt(m.size()); Iterator<Map.Entry<Object, Object>> i = m.entrySet().iterator(); while (i.hasNext()) { Map.Entry<Object, Object> entry = i.next(); writeDatum(out, entry.getKey()); writeDatum(out, entry.getValue()); } break; } case DataType.INTEGER: out.writeByte(DataType.INTEGER); out.writeInt((Integer) val); break; case DataType.LONG: out.writeByte(DataType.LONG); out.writeLong((Long) val); break; case DataType.FLOAT: out.writeByte(DataType.FLOAT); out.writeFloat((Float) val); break; case DataType.DOUBLE: out.writeByte(DataType.DOUBLE); out.writeDouble((Double) val); break; case DataType.BOOLEAN: out.writeByte(DataType.BOOLEAN); out.writeBoolean((Boolean) val); break; case DataType.BYTE: out.writeByte(DataType.BYTE); out.writeByte((Byte) val); break; case DataType.BYTEARRAY: { out.writeByte(DataType.BYTEARRAY); DataByteArray bytes = (DataByteArray) val; out.writeInt(bytes.size()); out.write(bytes.mData); break; } case DataType.CHARARRAY: { String s = (String) val; byte[] utfBytes = s.getBytes(DataReaderWriter.UTF8); int length = utfBytes.length; if (length < DataReaderWriter.UNSIGNED_SHORT_MAX) { out.writeByte(DataType.CHARARRAY); out.writeShort(length); out.write(utfBytes); } else { out.writeByte(DataType.BIGCHARARRAY); out.writeInt(length); out.write(utfBytes); } break; } case DataType.GENERIC_WRITABLECOMPARABLE: out.writeByte(DataType.GENERIC_WRITABLECOMPARABLE); //store the class name, so we know the class to create on read writeDatum(out, val.getClass().getName()); Writable writable = (Writable) val; writable.write(out); break; case DataType.NULL: out.writeByte(DataType.NULL); break; default: throw new RuntimeException("Unexpected data type " + type + " found in stream."); } }
From source file:org.apache.hama.bsp.BSPMessageBundle.java
@SuppressWarnings("unchecked") @Override/* w w w . j a v a2 s . c om*/ public void write(DataOutput out) throws IOException { out.writeInt(messages.size()); if (messages.size() > 0) { Class<M> clazz = (Class<M>) messages.get(0).getClass(); out.writeUTF(clazz.getName()); for (M m : messages) { m.write(out); } } }
From source file:org.cloudata.core.common.io.CObjectWritable.java
/** Write a {@link CWritable}, {@link String}, primitive type, or an array of * the preceding. */// www .j a v a 2 s. 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:com.vmware.demo.sgf.tests.domain.PersonKey.java
@Override public void toData(DataOutput out) throws IOException { out.writeInt(id); out.writeUTF(surname); }
From source file:org.apache.hadoop.hbase.index.TableIndices.java
/** * @param out Data output stream// w w w . j a va 2 s. co m */ public void write(DataOutput out) throws IOException { out.writeInt(this.indices.size()); for (IndexSpecification index : indices) { index.write(out); } }
From source file:org.apache.eagle.alert.engine.serialization.impl.JavaObjectSerializer.java
@Override public void serialize(Object value, DataOutput dataOutput) throws IOException { byte[] bytes = SerializationUtils.serialize((Serializable) value); dataOutput.writeInt(bytes.length); dataOutput.write(bytes);/*from w w w . java 2s. c om*/ }