New object streaming code is born!
git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@1605 542714f4-19e9-0310-aa3c-eee0fc999fb1
This commit is contained in:
Michael Bayne
@@ -0,0 +1,629 @@
|
||||
//
|
||||
// $Id: BasicStreamers.java,v 1.1 2002/07/23 05:42:34 mdb Exp $
|
||||
|
||||
package com.threerings.io;
|
||||
|
||||
import java.io.EOFException;
|
||||
import java.io.IOException;
|
||||
import java.util.HashMap;
|
||||
|
||||
/**
|
||||
* Code to read and write basic object types (like arrays of primitives,
|
||||
* {@link Integer} instances, {@link Double} instances, etc.).
|
||||
*/
|
||||
public class BasicStreamers
|
||||
{
|
||||
/** An array of types for all of the basic streamers. */
|
||||
public static Class[] BSTREAMER_TYPES = {
|
||||
Boolean.class,
|
||||
Byte.class,
|
||||
Short.class,
|
||||
Character.class,
|
||||
Integer.class,
|
||||
Long.class,
|
||||
Float.class,
|
||||
Double.class,
|
||||
String.class,
|
||||
(new boolean[0]).getClass(),
|
||||
(new byte[0]).getClass(),
|
||||
(new short[0]).getClass(),
|
||||
(new char[0]).getClass(),
|
||||
(new int[0]).getClass(),
|
||||
(new long[0]).getClass(),
|
||||
(new float[0]).getClass(),
|
||||
(new double[0]).getClass(),
|
||||
(new Object[0]).getClass(),
|
||||
};
|
||||
|
||||
/** An array of instances of all of the basic streamers. */
|
||||
public static Streamer[] BSTREAMER_INSTANCES = {
|
||||
new BooleanStreamer(),
|
||||
new ByteStreamer(),
|
||||
new ShortStreamer(),
|
||||
new CharacterStreamer(),
|
||||
new IntegerStreamer(),
|
||||
new LongStreamer(),
|
||||
new FloatStreamer(),
|
||||
new DoubleStreamer(),
|
||||
new StringStreamer(),
|
||||
new BooleanArrayStreamer(),
|
||||
new ByteArrayStreamer(),
|
||||
new ShortArrayStreamer(),
|
||||
new CharArrayStreamer(),
|
||||
new IntArrayStreamer(),
|
||||
new LongArrayStreamer(),
|
||||
new FloatArrayStreamer(),
|
||||
new DoubleArrayStreamer(),
|
||||
new ObjectArrayStreamer(),
|
||||
};
|
||||
|
||||
/** Streams {@link Boolean} instances. */
|
||||
public static class BooleanStreamer extends Streamer
|
||||
{
|
||||
// documentation inherited
|
||||
public Object createObject (ObjectInputStream in)
|
||||
throws IOException
|
||||
{
|
||||
return new Boolean(in.readBoolean());
|
||||
}
|
||||
|
||||
// documentation inherited
|
||||
public void writeObject (
|
||||
Object object, ObjectOutputStream out, boolean useWriter)
|
||||
throws IOException
|
||||
{
|
||||
out.writeBoolean(((Boolean)object).booleanValue());
|
||||
}
|
||||
|
||||
// documentation inherited
|
||||
public void readObject (
|
||||
Object object, ObjectInputStream in, boolean useReader)
|
||||
throws IOException, ClassNotFoundException
|
||||
{
|
||||
// nothing to do here
|
||||
}
|
||||
}
|
||||
|
||||
/** Streams {@link Byte} instances. */
|
||||
public static class ByteStreamer extends Streamer
|
||||
{
|
||||
// documentation inherited
|
||||
public Object createObject (ObjectInputStream in)
|
||||
throws IOException
|
||||
{
|
||||
return new Byte(in.readByte());
|
||||
}
|
||||
|
||||
// documentation inherited
|
||||
public void writeObject (
|
||||
Object object, ObjectOutputStream out, boolean useWriter)
|
||||
throws IOException
|
||||
{
|
||||
out.writeByte(((Byte)object).byteValue());
|
||||
}
|
||||
|
||||
// documentation inherited
|
||||
public void readObject (
|
||||
Object object, ObjectInputStream in, boolean useReader)
|
||||
throws IOException, ClassNotFoundException
|
||||
{
|
||||
// nothing to do here
|
||||
}
|
||||
}
|
||||
|
||||
/** Streams {@link Short} instances. */
|
||||
public static class ShortStreamer extends Streamer
|
||||
{
|
||||
// documentation inherited
|
||||
public Object createObject (ObjectInputStream in)
|
||||
throws IOException
|
||||
{
|
||||
return new Short(in.readShort());
|
||||
}
|
||||
|
||||
// documentation inherited
|
||||
public void writeObject (
|
||||
Object object, ObjectOutputStream out, boolean useWriter)
|
||||
throws IOException
|
||||
{
|
||||
out.writeShort(((Short)object).shortValue());
|
||||
}
|
||||
|
||||
// documentation inherited
|
||||
public void readObject (
|
||||
Object object, ObjectInputStream in, boolean useReader)
|
||||
throws IOException, ClassNotFoundException
|
||||
{
|
||||
// nothing to do here
|
||||
}
|
||||
}
|
||||
|
||||
/** Streams {@link Character} instances. */
|
||||
public static class CharacterStreamer extends Streamer
|
||||
{
|
||||
// documentation inherited
|
||||
public Object createObject (ObjectInputStream in)
|
||||
throws IOException
|
||||
{
|
||||
return new Character(in.readChar());
|
||||
}
|
||||
|
||||
// documentation inherited
|
||||
public void writeObject (
|
||||
Object object, ObjectOutputStream out, boolean useWriter)
|
||||
throws IOException
|
||||
{
|
||||
out.writeChar(((Character)object).charValue());
|
||||
}
|
||||
|
||||
// documentation inherited
|
||||
public void readObject (
|
||||
Object object, ObjectInputStream in, boolean useReader)
|
||||
throws IOException, ClassNotFoundException
|
||||
{
|
||||
// nothing to do here
|
||||
}
|
||||
}
|
||||
|
||||
/** Streams {@link Integer} instances. */
|
||||
public static class IntegerStreamer extends Streamer
|
||||
{
|
||||
// documentation inherited
|
||||
public Object createObject (ObjectInputStream in)
|
||||
throws IOException
|
||||
{
|
||||
return new Integer(in.readInt());
|
||||
}
|
||||
|
||||
// documentation inherited
|
||||
public void writeObject (
|
||||
Object object, ObjectOutputStream out, boolean useWriter)
|
||||
throws IOException
|
||||
{
|
||||
out.writeInt(((Integer)object).intValue());
|
||||
}
|
||||
|
||||
// documentation inherited
|
||||
public void readObject (
|
||||
Object object, ObjectInputStream in, boolean useReader)
|
||||
throws IOException, ClassNotFoundException
|
||||
{
|
||||
// nothing to do here
|
||||
}
|
||||
}
|
||||
|
||||
/** Streams {@link Long} instances. */
|
||||
public static class LongStreamer extends Streamer
|
||||
{
|
||||
// documentation inherited
|
||||
public Object createObject (ObjectInputStream in)
|
||||
throws IOException
|
||||
{
|
||||
return new Long(in.readLong());
|
||||
}
|
||||
|
||||
// documentation inherited
|
||||
public void writeObject (
|
||||
Object object, ObjectOutputStream out, boolean useWriter)
|
||||
throws IOException
|
||||
{
|
||||
out.writeLong(((Long)object).longValue());
|
||||
}
|
||||
|
||||
// documentation inherited
|
||||
public void readObject (
|
||||
Object object, ObjectInputStream in, boolean useReader)
|
||||
throws IOException, ClassNotFoundException
|
||||
{
|
||||
// nothing to do here
|
||||
}
|
||||
}
|
||||
|
||||
/** Streams {@link Float} instances. */
|
||||
public static class FloatStreamer extends Streamer
|
||||
{
|
||||
// documentation inherited
|
||||
public Object createObject (ObjectInputStream in)
|
||||
throws IOException
|
||||
{
|
||||
return new Float(in.readFloat());
|
||||
}
|
||||
|
||||
// documentation inherited
|
||||
public void writeObject (
|
||||
Object object, ObjectOutputStream out, boolean useWriter)
|
||||
throws IOException
|
||||
{
|
||||
out.writeFloat(((Float)object).floatValue());
|
||||
}
|
||||
|
||||
// documentation inherited
|
||||
public void readObject (
|
||||
Object object, ObjectInputStream in, boolean useReader)
|
||||
throws IOException, ClassNotFoundException
|
||||
{
|
||||
// nothing to do here
|
||||
}
|
||||
}
|
||||
|
||||
/** Streams {@link Double} instances. */
|
||||
public static class DoubleStreamer extends Streamer
|
||||
{
|
||||
// documentation inherited
|
||||
public Object createObject (ObjectInputStream in)
|
||||
throws IOException
|
||||
{
|
||||
return new Double(in.readDouble());
|
||||
}
|
||||
|
||||
// documentation inherited
|
||||
public void writeObject (
|
||||
Object object, ObjectOutputStream out, boolean useWriter)
|
||||
throws IOException
|
||||
{
|
||||
out.writeDouble(((Double)object).doubleValue());
|
||||
}
|
||||
|
||||
// documentation inherited
|
||||
public void readObject (
|
||||
Object object, ObjectInputStream in, boolean useReader)
|
||||
throws IOException, ClassNotFoundException
|
||||
{
|
||||
// nothing to do here
|
||||
}
|
||||
}
|
||||
|
||||
/** Streams {@link String} instances. */
|
||||
public static class StringStreamer extends Streamer
|
||||
{
|
||||
// documentation inherited
|
||||
public Object createObject (ObjectInputStream in)
|
||||
throws IOException
|
||||
{
|
||||
return in.readUTF();
|
||||
}
|
||||
|
||||
// documentation inherited
|
||||
public void writeObject (
|
||||
Object object, ObjectOutputStream out, boolean useWriter)
|
||||
throws IOException
|
||||
{
|
||||
out.writeUTF((String)object);
|
||||
}
|
||||
|
||||
// documentation inherited
|
||||
public void readObject (
|
||||
Object object, ObjectInputStream in, boolean useReader)
|
||||
throws IOException, ClassNotFoundException
|
||||
{
|
||||
// nothing to do here
|
||||
}
|
||||
}
|
||||
|
||||
/** Streams arrays of booleans. */
|
||||
public static class BooleanArrayStreamer extends Streamer
|
||||
{
|
||||
// documentation inherited
|
||||
public Object createObject (ObjectInputStream in)
|
||||
throws IOException
|
||||
{
|
||||
return new boolean[in.readInt()];
|
||||
}
|
||||
|
||||
// documentation inherited
|
||||
public void writeObject (
|
||||
Object object, ObjectOutputStream out, boolean useWriter)
|
||||
throws IOException
|
||||
{
|
||||
boolean[] value = (boolean[])object;
|
||||
int ecount = value.length;
|
||||
out.writeInt(ecount);
|
||||
for (int ii = 0; ii < ecount; ii++) {
|
||||
out.writeBoolean(value[ii]);
|
||||
}
|
||||
}
|
||||
|
||||
// documentation inherited
|
||||
public void readObject (
|
||||
Object object, ObjectInputStream in, boolean useReader)
|
||||
throws IOException, ClassNotFoundException
|
||||
{
|
||||
boolean[] value = (boolean[])object;
|
||||
int ecount = value.length;
|
||||
for (int ii = 0; ii < ecount; ii++) {
|
||||
value[ii] = in.readBoolean();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/** Streams arrays of bytes. */
|
||||
public static class ByteArrayStreamer extends Streamer
|
||||
{
|
||||
// documentation inherited
|
||||
public Object createObject (ObjectInputStream in)
|
||||
throws IOException
|
||||
{
|
||||
return new byte[in.readInt()];
|
||||
}
|
||||
|
||||
// documentation inherited
|
||||
public void writeObject (
|
||||
Object object, ObjectOutputStream out, boolean useWriter)
|
||||
throws IOException
|
||||
{
|
||||
byte[] value = (byte[])object;
|
||||
int ecount = value.length;
|
||||
out.writeInt(ecount);
|
||||
out.write(value);
|
||||
}
|
||||
|
||||
// documentation inherited
|
||||
public void readObject (
|
||||
Object object, ObjectInputStream in, boolean useReader)
|
||||
throws IOException, ClassNotFoundException
|
||||
{
|
||||
byte[] value = (byte[])object;
|
||||
int remain = value.length, offset = 0, read;
|
||||
while (remain > 0) {
|
||||
if ((read = in.read(value, offset, remain)) > 0) {
|
||||
remain -= read;
|
||||
offset += read;
|
||||
} else {
|
||||
throw new EOFException();
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/** Streams arrays of shorts. */
|
||||
public static class ShortArrayStreamer extends Streamer
|
||||
{
|
||||
// documentation inherited
|
||||
public Object createObject (ObjectInputStream in)
|
||||
throws IOException
|
||||
{
|
||||
return new short[in.readInt()];
|
||||
}
|
||||
|
||||
// documentation inherited
|
||||
public void writeObject (
|
||||
Object object, ObjectOutputStream out, boolean useWriter)
|
||||
throws IOException
|
||||
{
|
||||
short[] value = (short[])object;
|
||||
int ecount = value.length;
|
||||
out.writeInt(ecount);
|
||||
for (int ii = 0; ii < ecount; ii++) {
|
||||
out.writeShort(value[ii]);
|
||||
}
|
||||
}
|
||||
|
||||
// documentation inherited
|
||||
public void readObject (
|
||||
Object object, ObjectInputStream in, boolean useReader)
|
||||
throws IOException, ClassNotFoundException
|
||||
{
|
||||
short[] value = (short[])object;
|
||||
int ecount = value.length;
|
||||
for (int ii = 0; ii < ecount; ii++) {
|
||||
value[ii] = in.readShort();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/** Streams arrays of chars. */
|
||||
public static class CharArrayStreamer extends Streamer
|
||||
{
|
||||
// documentation inherited
|
||||
public Object createObject (ObjectInputStream in)
|
||||
throws IOException
|
||||
{
|
||||
return new char[in.readInt()];
|
||||
}
|
||||
|
||||
// documentation inherited
|
||||
public void writeObject (
|
||||
Object object, ObjectOutputStream out, boolean useWriter)
|
||||
throws IOException
|
||||
{
|
||||
char[] value = (char[])object;
|
||||
int ecount = value.length;
|
||||
out.writeInt(ecount);
|
||||
for (int ii = 0; ii < ecount; ii++) {
|
||||
out.writeChar(value[ii]);
|
||||
}
|
||||
}
|
||||
|
||||
// documentation inherited
|
||||
public void readObject (
|
||||
Object object, ObjectInputStream in, boolean useReader)
|
||||
throws IOException, ClassNotFoundException
|
||||
{
|
||||
char[] value = (char[])object;
|
||||
int ecount = value.length;
|
||||
for (int ii = 0; ii < ecount; ii++) {
|
||||
value[ii] = in.readChar();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/** Streams arrays of ints. */
|
||||
public static class IntArrayStreamer extends Streamer
|
||||
{
|
||||
// documentation inherited
|
||||
public Object createObject (ObjectInputStream in)
|
||||
throws IOException
|
||||
{
|
||||
return new int[in.readInt()];
|
||||
}
|
||||
|
||||
// documentation inherited
|
||||
public void writeObject (
|
||||
Object object, ObjectOutputStream out, boolean useWriter)
|
||||
throws IOException
|
||||
{
|
||||
int[] value = (int[])object;
|
||||
int ecount = value.length;
|
||||
out.writeInt(ecount);
|
||||
for (int ii = 0; ii < ecount; ii++) {
|
||||
out.writeInt(value[ii]);
|
||||
}
|
||||
}
|
||||
|
||||
// documentation inherited
|
||||
public void readObject (
|
||||
Object object, ObjectInputStream in, boolean useReader)
|
||||
throws IOException, ClassNotFoundException
|
||||
{
|
||||
int[] value = (int[])object;
|
||||
int ecount = value.length;
|
||||
for (int ii = 0; ii < ecount; ii++) {
|
||||
value[ii] = in.readInt();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/** Streams arrays of longs. */
|
||||
public static class LongArrayStreamer extends Streamer
|
||||
{
|
||||
// documentation inherited
|
||||
public Object createObject (ObjectInputStream in)
|
||||
throws IOException
|
||||
{
|
||||
return new long[in.readInt()];
|
||||
}
|
||||
|
||||
// documentation inherited
|
||||
public void writeObject (
|
||||
Object object, ObjectOutputStream out, boolean useWriter)
|
||||
throws IOException
|
||||
{
|
||||
long[] value = (long[])object;
|
||||
int ecount = value.length;
|
||||
out.writeInt(ecount);
|
||||
for (int ii = 0; ii < ecount; ii++) {
|
||||
out.writeLong(value[ii]);
|
||||
}
|
||||
}
|
||||
|
||||
// documentation inherited
|
||||
public void readObject (
|
||||
Object object, ObjectInputStream in, boolean useReader)
|
||||
throws IOException, ClassNotFoundException
|
||||
{
|
||||
long[] value = (long[])object;
|
||||
int ecount = value.length;
|
||||
for (int ii = 0; ii < ecount; ii++) {
|
||||
value[ii] = in.readLong();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/** Streams arrays of floats. */
|
||||
public static class FloatArrayStreamer extends Streamer
|
||||
{
|
||||
// documentation inherited
|
||||
public Object createObject (ObjectInputStream in)
|
||||
throws IOException
|
||||
{
|
||||
return new float[in.readInt()];
|
||||
}
|
||||
|
||||
// documentation inherited
|
||||
public void writeObject (
|
||||
Object object, ObjectOutputStream out, boolean useWriter)
|
||||
throws IOException
|
||||
{
|
||||
float[] value = (float[])object;
|
||||
int ecount = value.length;
|
||||
out.writeInt(ecount);
|
||||
for (int ii = 0; ii < ecount; ii++) {
|
||||
out.writeFloat(value[ii]);
|
||||
}
|
||||
}
|
||||
|
||||
// documentation inherited
|
||||
public void readObject (
|
||||
Object object, ObjectInputStream in, boolean useReader)
|
||||
throws IOException, ClassNotFoundException
|
||||
{
|
||||
float[] value = (float[])object;
|
||||
int ecount = value.length;
|
||||
for (int ii = 0; ii < ecount; ii++) {
|
||||
value[ii] = in.readFloat();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/** Streams arrays of doubles. */
|
||||
public static class DoubleArrayStreamer extends Streamer
|
||||
{
|
||||
// documentation inherited
|
||||
public Object createObject (ObjectInputStream in)
|
||||
throws IOException
|
||||
{
|
||||
return new double[in.readInt()];
|
||||
}
|
||||
|
||||
// documentation inherited
|
||||
public void writeObject (
|
||||
Object object, ObjectOutputStream out, boolean useWriter)
|
||||
throws IOException
|
||||
{
|
||||
double[] value = (double[])object;
|
||||
int ecount = value.length;
|
||||
out.writeInt(ecount);
|
||||
for (int ii = 0; ii < ecount; ii++) {
|
||||
out.writeDouble(value[ii]);
|
||||
}
|
||||
}
|
||||
|
||||
// documentation inherited
|
||||
public void readObject (
|
||||
Object object, ObjectInputStream in, boolean useReader)
|
||||
throws IOException, ClassNotFoundException
|
||||
{
|
||||
double[] value = (double[])object;
|
||||
int ecount = value.length;
|
||||
for (int ii = 0; ii < ecount; ii++) {
|
||||
value[ii] = in.readDouble();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/** Streams arrays of Object instances. */
|
||||
public static class ObjectArrayStreamer extends Streamer
|
||||
{
|
||||
// documentation inherited
|
||||
public Object createObject (ObjectInputStream in)
|
||||
throws IOException
|
||||
{
|
||||
return new Object[in.readInt()];
|
||||
}
|
||||
|
||||
// documentation inherited
|
||||
public void writeObject (
|
||||
Object object, ObjectOutputStream out, boolean useWriter)
|
||||
throws IOException
|
||||
{
|
||||
Object[] value = (Object[])object;
|
||||
int ecount = value.length;
|
||||
out.writeInt(ecount);
|
||||
for (int ii = 0; ii < ecount; ii++) {
|
||||
out.writeObject(value[ii]);
|
||||
}
|
||||
}
|
||||
|
||||
// documentation inherited
|
||||
public void readObject (
|
||||
Object object, ObjectInputStream in, boolean useReader)
|
||||
throws IOException, ClassNotFoundException
|
||||
{
|
||||
Object[] value = (Object[])object;
|
||||
int ecount = value.length;
|
||||
for (int ii = 0; ii < ecount; ii++) {
|
||||
value[ii] = in.readObject();
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user