List of usage examples for java.io DataOutput writeChar
void writeChar(int v) throws IOException;
char value, which is comprised of two bytes, to the output stream. From source file:RandomFileTest.java
public static void writeFixedString(String str, int size, DataOutput dataOutput) throws IOException { for (int i = 0; i < size; i++) { char aChar = 0; if (i < str.length()) aChar = str.charAt(i);//from w w w.j a va 2 s .c om dataOutput.writeChar(aChar); } }
From source file:RandomFileTest.java
public static void writeFixedString(String s, int size, DataOutput out) throws IOException { for (int i = 0; i < size; i++) { char ch = 0; if (i < s.length()) ch = s.charAt(i);/*from w ww. j a va2s .c om*/ out.writeChar(ch); } }
From source file:org.apache.geode.internal.InternalDataSerializer.java
/** * Writes given number of characters from array of {@code char}s to a {@code DataOutput}. * //from w ww .java2s.c om * @throws IOException A problem occurs while writing to {@code out} * * @see DataSerializer#readCharArray * @since GemFire 6.6 */ public static void writeCharArray(char[] array, int length, DataOutput out) throws IOException { checkOut(out); if (array == null) { length = -1; } writeArrayLength(length, out); if (logger.isTraceEnabled(LogMarker.SERIALIZER)) { logger.trace(LogMarker.SERIALIZER, "Writing char array of length {}", length); } if (length > 0) { for (int i = 0; i < length; i++) { out.writeChar(array[i]); } } }
From source file:org.apache.hadoop.chukwa.analysis.salsa.fsm.FSMIntermedEntry.java
public void write(DataOutput out) throws IOException { Set<String> mapKeys; out.writeInt(this.state_type.val); out.writeInt(this.state_mapred.val); out.writeInt(this.state_hdfs.val); out.writeInt(this.fsm_type.val); out.writeChar(DELIM); out.writeInt(state_name.length());/*from www.j ava2s . c om*/ if (state_name.length() > 0) out.writeUTF(state_name); out.writeInt(unique_id.length()); if (unique_id.length() > 0) out.writeUTF(unique_id); out.writeInt(timestamp.length()); if (timestamp.length() > 0) out.writeUTF(timestamp); out.writeInt(time_start.length()); if (time_start.length() > 0) out.writeUTF(time_start); out.writeInt(time_end.length()); if (time_end.length() > 0) out.writeUTF(time_end); out.writeInt(host_exec.length()); if (host_exec.length() > 0) out.writeUTF(host_exec); out.writeInt(host_other.length()); if (host_other.length() > 0) out.writeUTF(host_other); out.writeInt(time_orig_epoch.length()); if (time_orig_epoch.length() > 0) out.writeUTF(time_orig_epoch); out.writeInt(time_orig.length()); if (time_orig.length() > 0) out.writeUTF(time_orig); out.writeInt(job_id.length()); if (job_id.length() > 0) out.writeUTF(job_id); out.writeInt(identifier.length()); if (identifier.length() > 0) out.writeUTF(identifier); mapKeys = this.add_info.keySet(); out.writeInt(mapKeys.size()); for (Entry<String, String> entry : this.add_info.entrySet()) { String value = entry.getValue(); if (value.length() > 0) { out.writeUTF(entry.getKey()); out.writeInt(value.length()); out.writeUTF(value); } else { out.writeUTF("NULL"); out.writeInt(0); } } }
From source file:org.apache.hadoop.hbase.io.HbaseObjectWritable.java
/** * Write a {@link Writable}, {@link String}, primitive type, or an array of * the preceding./* w ww. ja v a 2 s. c o m*/ * @param out * @param instance * @param declaredClass * @param conf * @throws IOException */ @SuppressWarnings("unchecked") public static void writeObject(DataOutput out, Object instance, Class declaredClass, Configuration conf) throws IOException { Object instanceObj = instance; Class declClass = declaredClass; if (instanceObj == null) { // null instanceObj = new NullInstance(declClass, conf); declClass = Writable.class; } writeClassCode(out, declClass); if (declClass.isArray()) { // array // If bytearray, just dump it out -- avoid the recursion and // byte-at-a-time we were previously doing. if (declClass.equals(byte[].class)) { Bytes.writeByteArray(out, (byte[]) instanceObj); } else if (declClass.equals(Result[].class)) { Result.writeArray(out, (Result[]) instanceObj); } else { //if it is a Generic array, write the element's type if (getClassCode(declaredClass) == GENERIC_ARRAY_CODE) { Class<?> componentType = declaredClass.getComponentType(); writeClass(out, componentType); } int length = Array.getLength(instanceObj); out.writeInt(length); for (int i = 0; i < length; i++) { Object item = Array.get(instanceObj, i); writeObject(out, item, item.getClass(), conf); } } } else if (List.class.isAssignableFrom(declClass)) { List list = (List) instanceObj; int length = list.size(); out.writeInt(length); for (int i = 0; i < length; i++) { Object elem = list.get(i); writeObject(out, elem, elem == null ? Writable.class : elem.getClass(), conf); } } else if (declClass == String.class) { // String Text.writeString(out, (String) instanceObj); } else if (declClass.isPrimitive()) { // primitive type if (declClass == Boolean.TYPE) { // boolean out.writeBoolean(((Boolean) instanceObj).booleanValue()); } else if (declClass == Character.TYPE) { // char out.writeChar(((Character) instanceObj).charValue()); } else if (declClass == Byte.TYPE) { // byte out.writeByte(((Byte) instanceObj).byteValue()); } else if (declClass == Short.TYPE) { // short out.writeShort(((Short) instanceObj).shortValue()); } else if (declClass == Integer.TYPE) { // int out.writeInt(((Integer) instanceObj).intValue()); } else if (declClass == Long.TYPE) { // long out.writeLong(((Long) instanceObj).longValue()); } else if (declClass == Float.TYPE) { // float out.writeFloat(((Float) instanceObj).floatValue()); } else if (declClass == Double.TYPE) { // double out.writeDouble(((Double) instanceObj).doubleValue()); } else if (declClass == Void.TYPE) { // void } else { throw new IllegalArgumentException("Not a primitive: " + declClass); } } else if (declClass.isEnum()) { // enum Text.writeString(out, ((Enum) instanceObj).name()); } else if (Message.class.isAssignableFrom(declaredClass)) { Text.writeString(out, instanceObj.getClass().getName()); ((Message) instance).writeDelimitedTo(DataOutputOutputStream.constructOutputStream(out)); } else if (Writable.class.isAssignableFrom(declClass)) { // Writable Class<?> c = instanceObj.getClass(); Integer code = CLASS_TO_CODE.get(c); if (code == null) { out.writeByte(NOT_ENCODED); Text.writeString(out, c.getName()); } else { writeClassCode(out, c); } ((Writable) instanceObj).write(out); } else if (Serializable.class.isAssignableFrom(declClass)) { Class<?> c = instanceObj.getClass(); Integer code = CLASS_TO_CODE.get(c); if (code == null) { out.writeByte(NOT_ENCODED); Text.writeString(out, c.getName()); } else { writeClassCode(out, c); } ByteArrayOutputStream bos = null; ObjectOutputStream oos = null; try { bos = new ByteArrayOutputStream(); oos = new ObjectOutputStream(bos); oos.writeObject(instanceObj); byte[] value = bos.toByteArray(); out.writeInt(value.length); out.write(value); } finally { if (bos != null) bos.close(); if (oos != null) oos.close(); } } else { throw new IOException("Can't write: " + instanceObj + " as " + declClass); } }
From source file:org.apache.hadoop.hbase.security.access.HbaseObjectWritableFor96Migration.java
/** * Write a {@link Writable}, {@link String}, primitive type, or an array of * the preceding./*w w w. jav a2s .co m*/ * @param out * @param instance * @param declaredClass * @param conf * @throws IOException */ @SuppressWarnings("unchecked") static void writeObject(DataOutput out, Object instance, Class declaredClass, Configuration conf) throws IOException { Object instanceObj = instance; Class declClass = declaredClass; if (instanceObj == null) { // null instanceObj = new NullInstance(declClass, conf); declClass = Writable.class; } writeClassCode(out, declClass); if (declClass.isArray()) { // array // If bytearray, just dump it out -- avoid the recursion and // byte-at-a-time we were previously doing. if (declClass.equals(byte[].class)) { Bytes.writeByteArray(out, (byte[]) instanceObj); } else { //if it is a Generic array, write the element's type if (getClassCode(declaredClass) == GENERIC_ARRAY_CODE) { Class<?> componentType = declaredClass.getComponentType(); writeClass(out, componentType); } int length = Array.getLength(instanceObj); out.writeInt(length); for (int i = 0; i < length; i++) { Object item = Array.get(instanceObj, i); writeObject(out, item, item.getClass(), conf); } } } else if (List.class.isAssignableFrom(declClass)) { List list = (List) instanceObj; int length = list.size(); out.writeInt(length); for (int i = 0; i < length; i++) { Object elem = list.get(i); writeObject(out, elem, elem == null ? Writable.class : elem.getClass(), conf); } } else if (declClass == String.class) { // String Text.writeString(out, (String) instanceObj); } else if (declClass.isPrimitive()) { // primitive type if (declClass == Boolean.TYPE) { // boolean out.writeBoolean(((Boolean) instanceObj).booleanValue()); } else if (declClass == Character.TYPE) { // char out.writeChar(((Character) instanceObj).charValue()); } else if (declClass == Byte.TYPE) { // byte out.writeByte(((Byte) instanceObj).byteValue()); } else if (declClass == Short.TYPE) { // short out.writeShort(((Short) instanceObj).shortValue()); } else if (declClass == Integer.TYPE) { // int out.writeInt(((Integer) instanceObj).intValue()); } else if (declClass == Long.TYPE) { // long out.writeLong(((Long) instanceObj).longValue()); } else if (declClass == Float.TYPE) { // float out.writeFloat(((Float) instanceObj).floatValue()); } else if (declClass == Double.TYPE) { // double out.writeDouble(((Double) instanceObj).doubleValue()); } else if (declClass == Void.TYPE) { // void } else { throw new IllegalArgumentException("Not a primitive: " + declClass); } } else if (declClass.isEnum()) { // enum Text.writeString(out, ((Enum) instanceObj).name()); } else if (Message.class.isAssignableFrom(declaredClass)) { Text.writeString(out, instanceObj.getClass().getName()); ((Message) instance).writeDelimitedTo(DataOutputOutputStream.constructOutputStream(out)); } else if (Writable.class.isAssignableFrom(declClass)) { // Writable Class<?> c = instanceObj.getClass(); Integer code = CLASS_TO_CODE.get(c); if (code == null) { out.writeByte(NOT_ENCODED); Text.writeString(out, c.getName()); } else { writeClassCode(out, c); } ((Writable) instanceObj).write(out); } else if (Serializable.class.isAssignableFrom(declClass)) { Class<?> c = instanceObj.getClass(); Integer code = CLASS_TO_CODE.get(c); if (code == null) { out.writeByte(NOT_ENCODED); Text.writeString(out, c.getName()); } else { writeClassCode(out, c); } ByteArrayOutputStream bos = null; ObjectOutputStream oos = null; try { bos = new ByteArrayOutputStream(); oos = new ObjectOutputStream(bos); oos.writeObject(instanceObj); byte[] value = bos.toByteArray(); out.writeInt(value.length); out.write(value); } finally { if (bos != null) bos.close(); if (oos != null) oos.close(); } } else if (Scan.class.isAssignableFrom(declClass)) { Scan scan = (Scan) instanceObj; byte[] scanBytes = ProtobufUtil.toScan(scan).toByteArray(); out.writeInt(scanBytes.length); out.write(scanBytes); } else { throw new IOException("Can't write: " + instanceObj + " as " + declClass); } }
From source file:org.cloudata.core.common.io.CObjectWritable.java
/** Write a {@link CWritable}, {@link String}, primitive type, or an array of * the preceding. *//*from w w w .j a v a 2 s . com*/ 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); } }