/*-
* See the file LICENSE for redistribution information.
*
* Copyright (c) 2002,2008 Oracle. All rights reserved.
*
* $Id: SimpleFormat.java,v 1.1 2008/02/07 17:12:27 mark Exp $
*/
package com.sleepycat.persist.impl;
import java.lang.reflect.Field;
import java.math.BigInteger;
import java.util.Date;
import java.util.Map;
import java.util.Set;
import com.sleepycat.db.DatabaseEntry;
/**
* Format for simple types, including primitives. Additional methods are
* included to optimize the handling of primitives. Other classes such as
* PrimitiveArrayFormat and ReflectAccessor take advantage of these methods.
*
* @author Mark Hayes
*/
public abstract class SimpleFormat extends Format {
private static final long serialVersionUID = 4595245575868697702L;
private boolean primitive;
private SimpleFormat wrapperFormat;
SimpleFormat(Class type, boolean primitive) {
super(type);
this.primitive = primitive;
}
void setWrapperFormat(SimpleFormat wrapperFormat) {
this.wrapperFormat = wrapperFormat;
}
@Override
Format getWrapperFormat() {
return wrapperFormat;
}
@Override
public boolean isSimple() {
return true;
}
@Override
public boolean isPrimitive() {
return primitive;
}
@Override
void collectRelatedFormats(Catalog catalog,
Map<String,Format> newFormats) {
}
@Override
void initialize(Catalog catalog, int initVersion) {
}
@Override
public Object readObject(Object o, EntityInput input, boolean rawAccess) {
/* newInstance reads the value -- do nothing here. */
return o;
}
@Override
boolean evolve(Format newFormat, Evolver evolver) {
evolver.useOldFormat(this, newFormat);
return true;
}
/* -- Begin methods to be overridden by primitive formats only. -- */
Object newPrimitiveArray(int len, EntityInput input) {
throw new UnsupportedOperationException();
}
void writePrimitiveArray(Object o, EntityOutput output) {
throw new UnsupportedOperationException();
}
int getPrimitiveLength() {
throw new UnsupportedOperationException();
}
void readPrimitiveField(Object o, EntityInput input, Field field)
throws IllegalAccessException {
throw new UnsupportedOperationException();
}
void writePrimitiveField(Object o, EntityOutput output, Field field)
throws IllegalAccessException {
throw new UnsupportedOperationException();
}
/* -- End methods to be overridden by primitive formats only. -- */
void skipPrimitiveArray(int len, RecordInput input) {
input.skipFast(len * getPrimitiveLength());
}
void copySecMultiKeyPrimitiveArray(int len,
RecordInput input,
Set results) {
int primLen = getPrimitiveLength();
for (int i = 0; i < len; i += 1) {
DatabaseEntry entry = new DatabaseEntry
(input.getBufferBytes(), input.getBufferOffset(), primLen);
results.add(entry);
input.skipFast(primLen);
}
}
public static class FBool extends SimpleFormat {
private static final long serialVersionUID = -7724949525068533451L;
FBool(boolean primitive) {
super(primitive ? Boolean.TYPE : Boolean.class, primitive);
}
@Override
Object newArray(int len) {
return new Boolean[len];
}
@Override
public Object newInstance(EntityInput input, boolean rawAccess) {
return Boolean.valueOf(input.readBoolean());
}
@Override
void writeObject(Object o, EntityOutput output, boolean rawAccess) {
output.writeBoolean(((Boolean) o).booleanValue());
}
@Override
void skipContents(RecordInput input) {
input.skipFast(1);
}
@Override
void copySecKey(RecordInput input, RecordOutput output) {
output.writeFast(input.readFast());
}
@Override
Object newPrimitiveArray(int len, EntityInput input) {
boolean[] a = new boolean[len];
for (int i = 0; i < len; i += 1) {
a[i] = input.readBoolean();
}
return a;
}
@Override
void writePrimitiveArray(Object o, EntityOutput output) {
boolean[] a = (boolean[]) o;
int len = a.length;
output.writeArrayLength(len);
for (int i = 0; i < len; i += 1) {
output.writeBoolean(a[i]);
}
}
@Override
int getPrimitiveLength() {
return 1;
}
@Override
void readPrimitiveField(Object o, EntityInput input, Field field)
throws IllegalAccessException {
field.setBoolean(o, input.readBoolean());
}
@Override
void writePrimitiveField(Object o, EntityOutput output, Field field)
throws IllegalAccessException {
output.writeBoolean(field.getBoolean(o));
}
}
public static class FByte extends SimpleFormat {
private static final long serialVersionUID = 3651752958101447257L;
FByte(boolean primitive) {
super(primitive ? Byte.TYPE : Byte.class, primitive);
}
@Override
Object newArray(int len) {
return new Byte[len];
}
@Override
public Object newInstance(EntityInput input, boolean rawAccess) {
return Byte.valueOf(input.readByte());
}
@Override
void writeObject(Object o, EntityOutput output, boolean rawAccess) {
output.writeByte(((Number) o).byteValue());
}
@Override
void skipContents(RecordInput input) {
input.skipFast(1);
}
@Override
void copySecKey(RecordInput input, RecordOutput output) {
output.writeFast(input.readFast());
}
@Override
Object newPrimitiveArray(int len, EntityInput input) {
byte[] a = new byte[len];
for (int i = 0; i < len; i += 1) {
a[i] = input.readByte();
}
return a;
}
@Override
void writePrimitiveArray(Object o, EntityOutput output) {
byte[] a = (byte[]) o;
int len = a.length;
output.writeArrayLength(len);
for (int i = 0; i < len; i += 1) {
output.writeByte(a[i]);
}
}
@Override
int getPrimitiveLength() {
return 1;
}
@Override
void readPrimitiveField(Object o, EntityInput input, Field field)
throws IllegalAccessException {
field.setByte(o, input.readByte());
}
@Override
void writePrimitiveField(Object o, EntityOutput output, Field field)
throws IllegalAccessException {
output.writeByte(field.getByte(o));
}
@Override
Format getSequenceKeyFormat() {
return this;
}
}
public static class FShort extends SimpleFormat {
private static final long serialVersionUID = -4909138198491785624L;
FShort(boolean primitive) {
super(primitive ? Short.TYPE : Short.class, primitive);
}
@Override
Object newArray(int len) {
return new Short[len];
}
@Override
public Object newInstance(EntityInput input, boolean rawAccess) {
return Short.valueOf(input.readShort());
}
@Override
void writeObject(Object o, EntityOutput output, boolean rawAccess) {
output.writeShort(((Number) o).shortValue());
}
@Override
void skipContents(RecordInput input) {
input.skipFast(2);
}
@Override
void copySecKey(RecordInput input, RecordOutput output) {
output.writeFast(input.readFast());
output.writeFast(input.readFast());
}
@Override
Object newPrimitiveArray(int len, EntityInput input) {
short[] a = new short[len];
for (int i = 0; i < len; i += 1) {
a[i] = input.readShort();
}
return a;
}
@Override
void writePrimitiveArray(Object o, EntityOutput output) {
short[] a = (short[]) o;
int len = a.length;
output.writeArrayLength(len);
for (int i = 0; i < len; i += 1) {
output.writeShort(a[i]);
}
}
@Override
int getPrimitiveLength() {
return 2;
}
@Override
void readPrimitiveField(Object o, EntityInput input, Field field)
throws IllegalAccessException {
field.setShort(o, input.readShort());
}
@Override
void writePrimitiveField(Object o, EntityOutput output, Field field)
throws IllegalAccessException {
output.writeShort(field.getShort(o));
}
@Override
Format getSequenceKeyFormat() {
return this;
}
}
public static class FInt extends SimpleFormat {
private static final long serialVersionUID = 2695910006049980013L;
FInt(boolean primitive) {
super(primitive ? Integer.TYPE : Integer.class, primitive);
}
@Override
Object newArray(int len) {
return new Integer[len];
}
@Override
public Object newInstance(EntityInput input, boolean rawAccess) {
return Integer.valueOf(input.readInt());
}
@Override
void writeObject(Object o, EntityOutput output, boolean rawAccess) {
output.writeInt(((Number) o).intValue());
}
@Override
void skipContents(RecordInput input) {
input.skipFast(4);
}
@Override
void copySecKey(RecordInput input, RecordOutput output) {
output.writeFast(input.readFast());
output.writeFast(input.readFast());
output.writeFast(input.readFast());
output.writeFast(input.readFast());
}
@Override
Object newPrimitiveArray(int len, EntityInput input) {
int[] a = new int[len];
for (int i = 0; i < len; i += 1) {
a[i] = input.readInt();
}
return a;
}
@Override
void writePrimitiveArray(Object o, EntityOutput output) {
int[] a = (int[]) o;
int len = a.length;
output.writeArrayLength(len);
for (int i = 0; i < len; i += 1) {
output.writeInt(a[i]);
}
}
@Override
int getPrimitiveLength() {
return 4;
}
@Override
void readPrimitiveField(Object o, EntityInput input, Field field)
throws IllegalAccessException {
field.setInt(o, input.readInt());
}
@Override
void writePrimitiveField(Object o, EntityOutput output, Field field)
throws IllegalAccessException {
output.writeInt(field.getInt(o));
}
@Override
Format getSequenceKeyFormat() {
return this;
}
}
public static class FLong extends SimpleFormat {
private static final long serialVersionUID = 1872661106534776520L;
FLong(boolean primitive) {
super(primitive ? Long.TYPE : Long.class, primitive);
}
@Override
Object newArray(int len) {
return new Long[len];
}
@Override
public Object newInstance(EntityInput input, boolean rawAccess) {
return Long.valueOf(input.readLong());
}
@Override
void writeObject(Object o, EntityOutput output, boolean rawAccess) {
output.writeLong(((Number) o).longValue());
}
@Override
void skipContents(RecordInput input) {
input.skipFast(8);
}
@Override
void copySecKey(RecordInput input, RecordOutput output) {
output.writeFast
(input.getBufferBytes(), input.getBufferOffset(), 8);
input.skipFast(8);
}
@Override
Object newPrimitiveArray(int len, EntityInput input) {
long[] a = new long[len];
for (int i = 0; i < len; i += 1) {
a[i] = input.readLong();
}
return a;
}
@Override
void writePrimitiveArray(Object o, EntityOutput output) {
long[] a = (long[]) o;
int len = a.length;
output.writeArrayLength(len);
for (int i = 0; i < len; i += 1) {
output.writeLong(a[i]);
}
}
@Override
int getPrimitiveLength() {
return 8;
}
@Override
void readPrimitiveField(Object o, EntityInput input, Field field)
throws IllegalAccessException {
field.setLong(o, input.readLong());
}
@Override
void writePrimitiveField(Object o, EntityOutput output, Field field)
throws IllegalAccessException {
output.writeLong(field.getLong(o));
}
@Override
Format getSequenceKeyFormat() {
return this;
}
}
public static class FFloat extends SimpleFormat {
private static final long serialVersionUID = 1033413049495053602L;
FFloat(boolean primitive) {
super(primitive ? Float.TYPE : Float.class, primitive);
}
@Override
Object newArray(int len) {
return new Float[len];
}
@Override
public Object newInstance(EntityInput input, boolean rawAccess) {
return Float.valueOf(input.readSortedFloat());
}
@Override
void writeObject(Object o, EntityOutput output, boolean rawAccess) {
output.writeSortedFloat(((Number) o).floatValue());
}
@Override
void skipContents(RecordInput input) {
input.skipFast(4);
}
@Override
void copySecKey(RecordInput input, RecordOutput output) {
output.writeFast(input.readFast());
output.writeFast(input.readFast());
output.writeFast(input.readFast());
output.writeFast(input.readFast());
}
@Override
Object newPrimitiveArray(int len, EntityInput input) {
float[] a = new float[len];
for (int i = 0; i < len; i += 1) {
a[i] = input.readSortedFloat();
}
return a;
}
@Override
void writePrimitiveArray(Object o, EntityOutput output) {
float[] a = (float[]) o;
int len = a.length;
output.writeArrayLength(len);
for (int i = 0; i < len; i += 1) {
output.writeSortedFloat(a[i]);
}
}
@Override
int getPrimitiveLength() {
return 4;
}
@Override
void readPrimitiveField(Object o, EntityInput input, Field field)
throws IllegalAccessException {
field.setFloat(o, input.readSortedFloat());
}
@Override
void writePrimitiveField(Object o, EntityOutput output, Field field)
throws IllegalAccessException {
output.writeSortedFloat(field.getFloat(o));
}
}
public static class FDouble extends SimpleFormat {
private static final long serialVersionUID = 646904456811041423L;
FDouble(boolean primitive) {
super(primitive ? Double.TYPE : Double.class, primitive);
}
@Override
Object newArray(int len) {
return new Double[len];
}
@Override
public Object newInstance(EntityInput input, boolean rawAccess) {
return Double.valueOf(input.readSortedDouble());
}
@Override
void writeObject(Object o, EntityOutput output, boolean rawAccess) {
output.writeSortedDouble(((Number) o).doubleValue());
}
@Override
void skipContents(RecordInput input) {
input.skipFast(8);
}
@Override
void copySecKey(RecordInput input, RecordOutput output) {
output.writeFast
(input.getBufferBytes(), input.getBufferOffset(), 8);
input.skipFast(8);
}
@Override
Object newPrimitiveArray(int len, EntityInput input) {
double[] a = new double[len];
for (int i = 0; i < len; i += 1) {
a[i] = input.readSortedDouble();
}
return a;
}
@Override
void writePrimitiveArray(Object o, EntityOutput output) {
double[] a = (double[]) o;
int len = a.length;
output.writeArrayLength(len);
for (int i = 0; i < len; i += 1) {
output.writeSortedDouble(a[i]);
}
}
@Override
int getPrimitiveLength() {
return 8;
}
@Override
void readPrimitiveField(Object o, EntityInput input, Field field)
throws IllegalAccessException {
field.setDouble(o, input.readSortedDouble());
}
@Override
void writePrimitiveField(Object o, EntityOutput output, Field field)
throws IllegalAccessException {
output.writeSortedDouble(field.getDouble(o));
}
}
public static class FChar extends SimpleFormat {
private static final long serialVersionUID = -7609118195770005374L;
FChar(boolean primitive) {
super(primitive ? Character.TYPE : Character.class, primitive);
}
@Override
Object newArray(int len) {
return new Character[len];
}
@Override
public Object newInstance(EntityInput input, boolean rawAccess) {
return Character.valueOf(input.readChar());
}
@Override
void writeObject(Object o, EntityOutput output, boolean rawAccess) {
output.writeChar(((Character) o).charValue());
}
@Override
void skipContents(RecordInput input) {
input.skipFast(2);
}
@Override
void copySecKey(RecordInput input, RecordOutput output) {
output.writeFast(input.readFast());
output.writeFast(input.readFast());
}
@Override
Object newPrimitiveArray(int len, EntityInput input) {
char[] a = new char[len];
for (int i = 0; i < len; i += 1) {
a[i] = input.readChar();
}
return a;
}
@Override
void writePrimitiveArray(Object o, EntityOutput output) {
char[] a = (char[]) o;
int len = a.length;
output.writeArrayLength(len);
for (int i = 0; i < len; i += 1) {
output.writeChar(a[i]);
}
}
@Override
int getPrimitiveLength() {
return 2;
}
@Override
void readPrimitiveField(Object o, EntityInput input, Field field)
throws IllegalAccessException {
field.setChar(o, input.readChar());
}
@Override
void writePrimitiveField(Object o, EntityOutput output, Field field)
throws IllegalAccessException {
output.writeChar(field.getChar(o));
}
}
public static class FString extends SimpleFormat {
private static final long serialVersionUID = 5710392786480064612L;
FString() {
super(String.class, false);
}
@Override
Object newArray(int len) {
return new String[len];
}
@Override
public Object newInstance(EntityInput input, boolean rawAccess) {
return input.readString();
}
@Override
void writeObject(Object o, EntityOutput output, boolean rawAccess) {
output.writeString((String) o);
}
@Override
void skipContents(RecordInput input) {
input.skipFast(input.getStringByteLength());
}
@Override
void copySecKey(RecordInput input, RecordOutput output) {
int len = input.getStringByteLength();
output.writeFast
(input.getBufferBytes(), input.getBufferOffset(), len);
input.skipFast(len);
}
}
public static class FBigInt extends SimpleFormat {
private static final long serialVersionUID = -5027098112507644563L;
FBigInt() {
super(BigInteger.class, false);
}
@Override
Object newArray(int len) {
return new BigInteger[len];
}
@Override
public Object newInstance(EntityInput input, boolean rawAccess) {
return input.readBigInteger();
}
@Override
void writeObject(Object o, EntityOutput output, boolean rawAccess) {
output.writeBigInteger((BigInteger) o);
}
@Override
void skipContents(RecordInput input) {
input.skipFast(input.getBigIntegerByteLength());
}
@Override
void copySecKey(RecordInput input, RecordOutput output) {
int len = input.getBigIntegerByteLength();
output.writeFast
(input.getBufferBytes(), input.getBufferOffset(), len);
input.skipFast(len);
}
}
public static class FDate extends SimpleFormat {
private static final long serialVersionUID = -5665773229869034145L;
FDate() {
super(Date.class, false);
}
@Override
Object newArray(int len) {
return new Date[len];
}
@Override
public Object newInstance(EntityInput input, boolean rawAccess) {
return new Date(input.readLong());
}
@Override
void writeObject(Object o, EntityOutput output, boolean rawAccess) {
output.writeLong(((Date) o).getTime());
}
@Override
void skipContents(RecordInput input) {
input.skipFast(8);
}
@Override
void copySecKey(RecordInput input, RecordOutput output) {
output.writeFast
(input.getBufferBytes(), input.getBufferOffset(), 8);
input.skipFast(8);
}
}
}