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Copy pathSerializerBase.java
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2118 lines (1795 loc) · 76.5 KB
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/*
* Copyright (c) 2012 Jan Kotek
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.mapdb;
import java.io.*;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.util.*;
/**
* Serializer which uses 'header byte' to serialize/deserialize
* most of classes from 'java.lang' and 'java.util' packages.
*
* @author Jan Kotek
*/
@SuppressWarnings({ "unchecked", "rawtypes" })
public class SerializerBase extends Serializer<Object>{
protected interface Ser<A> {
/**
* Serialize the content of an object into a ObjectOutput
*
* @param out ObjectOutput to save object into
* @param value Object to serialize
*/
public void serialize( DataOutput out, A value, FastArrayList objectStack)
throws IOException;
}
protected static abstract class Deser<A> {
/**
* Deserialize the content of an object from a DataInput.
*
* @param in to read serialized data from
* @return deserialized object
* @throws java.io.IOException
*/
abstract public Object deserialize(DataInput in, FastArrayList objectStack)
throws IOException;
public boolean needsObjectStack(){
return false;
}
}
/** always returns single object without reading anything*/
protected final class DeserSingleton extends Deser{
protected final Object singleton;
public DeserSingleton(Object singleton) {
this.singleton = singleton;
}
@Override
public Object deserialize(DataInput in, FastArrayList objectStack) throws IOException {
return singleton;
}
}
protected static final class DeserSerializer extends Deser {
private final Serializer serializer;
public DeserSerializer(Serializer serializer) {
if(serializer==null)
throw new NullPointerException();
this.serializer = serializer;
}
@Override
public Object deserialize(DataInput in, FastArrayList objectStack) throws IOException {
return serializer.deserialize(in,-1);
}
}
protected static final class DeserStringLen extends Deser{
final int len;
DeserStringLen(int len) {
this.len = len;
}
@Override
public Object deserialize(DataInput in, FastArrayList objectStack) throws IOException {
return deserializeString(in,len);
}
}
protected static final class DeserInt extends Deser{
protected final int digits;
protected final boolean minus;
public DeserInt(int digits, boolean minus) {
this.digits = digits;
this.minus = minus;
}
@Override
public Object deserialize(DataInput in, FastArrayList objectStack) throws IOException {
int ret = in.readUnsignedByte()&0xFF;
for(int i=1;i<digits;i++){
ret = (ret<<8) | (in.readUnsignedByte()&0xFF);
}
if(minus)
ret = -ret;
return ret;
}
}
protected static final class DeserLong extends Deser{
protected final int digits;
protected final boolean minus;
public DeserLong(int digits, boolean minus) {
this.digits = digits;
this.minus = minus;
}
@Override
public Object deserialize(DataInput in, FastArrayList objectStack) throws IOException {
long ret = in.readUnsignedByte()&0xFF;
for(int i=1;i<digits;i++){
ret = (ret<<8) | (in.readUnsignedByte()&0xFF);
}
if(minus)
ret = -ret;
return ret;
}
}
/** writes single byte header*/
protected final class SerHeader implements Ser{
final byte header;
public SerHeader(int header) {
this.header = (byte) header;
}
@Override
public void serialize(DataOutput out, Object value, FastArrayList objectStack) throws IOException {
out.write(header);
}
}
protected static final class SerHeaderSerializer implements Ser{
final byte header;
final Serializer serializer;
public SerHeaderSerializer(int header, Serializer serializer) {
if(serializer==null)
throw new NullPointerException();
this.header = (byte) header;
this.serializer = serializer;
}
@Override
public void serialize(DataOutput out, Object value, FastArrayList objectStack) throws IOException {
out.write(header);
serializer.serialize(out,value);
}
}
protected final Map<Class, Ser> ser = new IdentityHashMap<Class, Ser>();
protected final Deser[] headerDeser = new Deser[255];
public SerializerBase(){
initHeaderDeser();
initSer();
initMapdb();
}
protected void initSer() {
ser.put(Integer.class, SER_INT);
ser.put(Long.class, SER_LONG);
ser.put(String.class, SER_STRING);
ser.put(Boolean.class, SER_BOOLEAN);
ser.put(String.class, SER_STRING);
ser.put(Character.class, SER_CHAR);
ser.put(Short.class, SER_SHORT);
ser.put(Float.class, SER_FLOAT);
ser.put(Double.class, SER_DOUBLE);
ser.put(Byte.class, SER_BYTE);
ser.put(byte[].class, SER_BYTE_ARRAY);
ser.put(boolean[].class, new SerHeaderSerializer(Header.ARRAY_BOOLEAN, Serializer.BOOLEAN_ARRAY));
ser.put(short[].class, new SerHeaderSerializer(Header.ARRAY_SHORT, Serializer.SHORT_ARRAY));
ser.put(char[].class, new SerHeaderSerializer(Header.ARRAY_CHAR, Serializer.CHAR_ARRAY));
ser.put(float[].class, new SerHeaderSerializer(Header.ARRAY_FLOAT, Serializer.FLOAT_ARRAY));
ser.put(double[].class, new SerHeaderSerializer(Header.ARRAY_DOUBLE, Serializer.DOUBLE_ARRAY));
ser.put(int[].class, SER_INT_ARRAY);
ser.put(long[].class, SER_LONG_ARRAY);
ser.put(BigInteger.class, new SerHeaderSerializer(Header.BIGINTEGER,Serializer.BIG_INTEGER));
ser.put(BigDecimal.class, new SerHeaderSerializer(Header.BIGDECIMAL,Serializer.BIG_DECIMAL));
ser.put(Class.class, new SerHeaderSerializer(Header.CLASS,Serializer.CLASS));
ser.put(Date.class, new SerHeaderSerializer(Header.DATE,Serializer.DATE));
ser.put(UUID.class, new SerHeaderSerializer(Header.UUID,Serializer.UUID));
ser.put(Atomic.Long.class, SER_MA_LONG);
ser.put(Atomic.Integer.class, SER_MA_INT);
ser.put(Atomic.Boolean.class, SER_MA_BOOL);
ser.put(Atomic.String.class, SER_MA_STRING);
ser.put(Atomic.Var.class, SER_MA_VAR);
ser.put(Object[].class, new Ser<Object[]>(){
@Override
public void serialize(DataOutput out, Object[] b, FastArrayList objectStack) throws IOException {
serializeObjectArray(out, b, objectStack);
}
});
ser.put(ArrayList.class, new Ser<ArrayList>(){
@Override
public void serialize(DataOutput out, ArrayList value, FastArrayList objectStack) throws IOException {
serializeCollection(Header.ARRAYLIST, out, value, objectStack);
}
});
ser.put(LinkedList.class, new Ser<Collection>(){
@Override
public void serialize(DataOutput out, Collection value, FastArrayList objectStack) throws IOException {
serializeCollection(Header.LINKEDLIST, out,value, objectStack);
}
});
ser.put(HashSet.class, new Ser<Collection>(){
@Override
public void serialize(DataOutput out, Collection value, FastArrayList objectStack) throws IOException {
serializeCollection(Header.HASHSET, out,value, objectStack);
}
});
ser.put(LinkedHashSet.class, new Ser<Collection>(){
@Override
public void serialize(DataOutput out, Collection value, FastArrayList objectStack) throws IOException {
serializeCollection(Header.LINKEDHASHSET, out,value, objectStack);
}
});
ser.put(HashMap.class, new Ser<Map>(){
@Override
public void serialize(DataOutput out, Map value, FastArrayList objectStack) throws IOException {
serializeMap(Header.HASHMAP, out,value, objectStack);
}
});
ser.put(LinkedHashMap.class, new Ser<Map>(){
@Override
public void serialize(DataOutput out, Map value, FastArrayList objectStack) throws IOException {
serializeMap(Header.LINKEDHASHMAP, out,value, objectStack);
}
});
ser.put(Properties.class, new Ser<Map>(){
@Override
public void serialize(DataOutput out, Map value, FastArrayList objectStack) throws IOException {
serializeMap(Header.PROPERTIES, out, value, objectStack);
}
});
ser.put(TreeSet.class, new Ser<TreeSet>(){
@Override
public void serialize(DataOutput out, TreeSet l, FastArrayList objectStack) throws IOException {
out.write(Header.TREESET);
DataIO.packInt(out, l.size());
SerializerBase.this.serialize(out, l.comparator(), objectStack);
for (Object o : l)
SerializerBase.this.serialize(out, o, objectStack);
}
});
ser.put(TreeMap.class, new Ser<TreeMap<Object,Object>>(){
@Override
public void serialize(DataOutput out, TreeMap<Object,Object> l, FastArrayList objectStack) throws IOException {
out.write(Header.TREEMAP);
DataIO.packInt(out, l.size());
SerializerBase.this.serialize(out, l.comparator(), objectStack);
for (Map.Entry o : l.entrySet()) {
SerializerBase.this.serialize(out, o.getKey(), objectStack);
SerializerBase.this.serialize(out, o.getValue(), objectStack);
}
}
});
ser.put(Fun.Pair.class, new Ser<Fun.Pair>(){
@Override
public void serialize(DataOutput out, Fun.Pair value, FastArrayList objectStack) throws IOException {
out.write(Header.PAIR);
SerializerBase.this.serialize(out, value.a, objectStack);
SerializerBase.this.serialize(out, value.b, objectStack);
}
});
ser.put(BTreeKeySerializer.BasicKeySerializer.class, new Ser<BTreeKeySerializer.BasicKeySerializer>(){
@Override
public void serialize(DataOutput out, BTreeKeySerializer.BasicKeySerializer value, FastArrayList objectStack) throws IOException {
out.write(Header.MAPDB);
DataIO.packInt(out, HeaderMapDB.B_TREE_BASIC_KEY_SERIALIZER);
SerializerBase.this.serialize(out, value.serializer, objectStack);
SerializerBase.this.serialize(out, value.comparator, objectStack);
}
});
ser.put(Fun.ArrayComparator.class, new Ser<Fun.ArrayComparator>(){
@Override
public void serialize(DataOutput out, Fun.ArrayComparator value, FastArrayList objectStack) throws IOException {
out.write(Header.MAPDB);
DataIO.packInt(out, HeaderMapDB.COMPARATOR_ARRAY);
SerializerBase.this.serialize(out, value.comparators,objectStack);
}
});
ser.put(CompressionWrapper.class, new Ser<CompressionWrapper>(){
@Override
public void serialize(DataOutput out, CompressionWrapper value, FastArrayList objectStack) throws IOException {
out.write(Header.MAPDB);
DataIO.packInt(out, value.compressValues ?
HeaderMapDB.SERIALIZER_COMPRESSION_WRAPPER2 :
HeaderMapDB.SERIALIZER_COMPRESSION_WRAPPER); //this is old option, kept for backward compatibility
SerializerBase.this.serialize(out, value.serializer,objectStack);
}
});
ser.put(CompressionDeflateWrapper.class, new Ser<CompressionDeflateWrapper>(){
@Override
public void serialize(DataOutput out, CompressionDeflateWrapper value, FastArrayList objectStack) throws IOException {
out.write(Header.MAPDB);
DataIO.packInt(out, HeaderMapDB.SERIALIZER_COMPRESSION_DEFLATE_WRAPPER);
SerializerBase.this.serialize(out, value.serializer, objectStack);
out.writeByte(value.compressLevel);
DataIO.packInt(out, value.dictionary==null? 0 : value.dictionary.length);
if(value.dictionary!=null && value.dictionary.length>0)
out.write(value.dictionary);
}
});
ser.put(Array.class, new Ser<Array>(){
@Override
public void serialize(DataOutput out, Array value, FastArrayList objectStack) throws IOException {
out.write(Header.MAPDB);
DataIO.packInt(out, HeaderMapDB.SERIALIZER_ARRAY);
SerializerBase.this.serialize(out, value.serializer,objectStack);
}
});
ser.put(BTreeKeySerializer.Compress.class, new Ser< BTreeKeySerializer.Compress>(){
@Override
public void serialize(DataOutput out, BTreeKeySerializer.Compress value, FastArrayList objectStack) throws IOException {
out.write(Header.MAPDB);
DataIO.packInt(out, HeaderMapDB.B_TREE_COMPRESS_KEY_SERIALIZER);
SerializerBase.this.serialize(out, value.wrapped,objectStack);
}
});
ser.put(BTreeKeySerializer.ArrayKeySerializer.class, new Ser<BTreeKeySerializer.ArrayKeySerializer>(){
@Override
public void serialize(DataOutput out, BTreeKeySerializer.ArrayKeySerializer value, FastArrayList objectStack) throws IOException {
out.write(Header.MAPDB);
DataIO.packInt(out, HeaderMapDB.B_TREE_ARRAY_SERIALIZER);
DataIO.packInt(out,value.tsize);
for(int i=0;i<value.tsize;i++){
SerializerBase.this.serialize(out, value.comparators[i],objectStack);
SerializerBase.this.serialize(out, value.serializers[i],objectStack);
}
}
});
//TODO object stack handling is probably all broken. write paranoid tests!!!
//TODO write automated test to check if static classes inside BTreeKeySer.. .and other can be serialized
}
public void serializeObjectArray(DataOutput out, Object[] b, FastArrayList objectStack) throws IOException {
boolean allNull = true;
//check for all null
for (Object o : b) {
if(o!=null){
allNull=false;
break;
}
}
if(allNull){
out.write(Header.ARRAY_OBJECT_ALL_NULL);
DataIO.packInt(out, b.length);
// Write class for components
Class<?> componentType = b.getClass().getComponentType();
serializeClass(out, componentType);
} else {
out.write(Header.ARRAY_OBJECT);
DataIO.packInt(out, b.length);
// Write class for components
Class<?> componentType = b.getClass().getComponentType();
serializeClass(out, componentType);
for (Object o : b)
this.serialize(out, o, objectStack);
}
}
protected void initHeaderDeser(){
headerDeser[Header.NULL] = new DeserSingleton(null);
headerDeser[Header.ZERO_FAIL] = new Deser() {
@Override
public Object deserialize(DataInput in, FastArrayList objectStack) throws IOException {
throw new IOError(new IOException("Zero Header, data corrupted"));
}
};
headerDeser[Header.JAVA_SERIALIZATION] = new Deser() {
@Override
public Object deserialize(DataInput in, FastArrayList objectStack) throws IOException {
throw new IOError(new IOException(
"Wrong header, data were probably serialized with " +
"java.lang.ObjectOutputStream," +
" not with MapDB serialization"));
}
};
headerDeser[Header.BOOLEAN_FALSE] = new DeserSingleton(Boolean.FALSE);
headerDeser[Header.BOOLEAN_TRUE] = new DeserSingleton(Boolean.TRUE);
headerDeser[Header.INT_M9] = new DeserSingleton(-9);
headerDeser[Header.INT_M8] = new DeserSingleton(-8);
headerDeser[Header.INT_M7] = new DeserSingleton(-7);
headerDeser[Header.INT_M6] = new DeserSingleton(-6);
headerDeser[Header.INT_M5] = new DeserSingleton(-5);
headerDeser[Header.INT_M4] = new DeserSingleton(-4);
headerDeser[Header.INT_M3] = new DeserSingleton(-3);
headerDeser[Header.INT_M2] = new DeserSingleton(-2);
headerDeser[Header.INT_M1] = new DeserSingleton(-1);
headerDeser[Header.INT_0] = new DeserSingleton(0);
headerDeser[Header.INT_1] = new DeserSingleton(1);
headerDeser[Header.INT_2] = new DeserSingleton(2);
headerDeser[Header.INT_3] = new DeserSingleton(3);
headerDeser[Header.INT_4] = new DeserSingleton(4);
headerDeser[Header.INT_5] = new DeserSingleton(5);
headerDeser[Header.INT_6] = new DeserSingleton(6);
headerDeser[Header.INT_7] = new DeserSingleton(7);
headerDeser[Header.INT_8] = new DeserSingleton(8);
headerDeser[Header.INT_9] = new DeserSingleton(9);
headerDeser[Header.INT_10] = new DeserSingleton(10);
headerDeser[Header.INT_11] = new DeserSingleton(11);
headerDeser[Header.INT_12] = new DeserSingleton(12);
headerDeser[Header.INT_13] = new DeserSingleton(13);
headerDeser[Header.INT_14] = new DeserSingleton(14);
headerDeser[Header.INT_15] = new DeserSingleton(15);
headerDeser[Header.INT_16] = new DeserSingleton(16);
headerDeser[Header.INT_MIN_VALUE] = new DeserSingleton(Integer.MIN_VALUE);
headerDeser[Header.INT_MAX_VALUE] = new DeserSingleton(Integer.MAX_VALUE);
headerDeser[Header.LONG_M9] = new DeserSingleton(-9L);
headerDeser[Header.LONG_M8] = new DeserSingleton(-8L);
headerDeser[Header.LONG_M7] = new DeserSingleton(-7L);
headerDeser[Header.LONG_M6] = new DeserSingleton(-6L);
headerDeser[Header.LONG_M5] = new DeserSingleton(-5L);
headerDeser[Header.LONG_M4] = new DeserSingleton(-4L);
headerDeser[Header.LONG_M3] = new DeserSingleton(-3L);
headerDeser[Header.LONG_M2] = new DeserSingleton(-2L);
headerDeser[Header.LONG_M1] = new DeserSingleton(-1L);
headerDeser[Header.LONG_0] = new DeserSingleton(0L);
headerDeser[Header.LONG_1] = new DeserSingleton(1L);
headerDeser[Header.LONG_2] = new DeserSingleton(2L);
headerDeser[Header.LONG_3] = new DeserSingleton(3L);
headerDeser[Header.LONG_4] = new DeserSingleton(4L);
headerDeser[Header.LONG_5] = new DeserSingleton(5L);
headerDeser[Header.LONG_6] = new DeserSingleton(6L);
headerDeser[Header.LONG_7] = new DeserSingleton(7L);
headerDeser[Header.LONG_8] = new DeserSingleton(8L);
headerDeser[Header.LONG_9] = new DeserSingleton(9L);
headerDeser[Header.LONG_10] = new DeserSingleton(10L);
headerDeser[Header.LONG_11] = new DeserSingleton(11L);
headerDeser[Header.LONG_12] = new DeserSingleton(12L);
headerDeser[Header.LONG_13] = new DeserSingleton(13L);
headerDeser[Header.LONG_14] = new DeserSingleton(14L);
headerDeser[Header.LONG_15] = new DeserSingleton(15L);
headerDeser[Header.LONG_16] = new DeserSingleton(16L);
headerDeser[Header.LONG_MIN_VALUE] = new DeserSingleton(Long.MIN_VALUE);
headerDeser[Header.LONG_MAX_VALUE] = new DeserSingleton(Long.MAX_VALUE);
headerDeser[Header.CHAR_0] = new DeserSingleton((char)0);
headerDeser[Header.CHAR_1] = new DeserSingleton((char)1);
headerDeser[Header.SHORT_M1] = new DeserSingleton((short)-1);
headerDeser[Header.SHORT_0] = new DeserSingleton((short)0);
headerDeser[Header.SHORT_1] = new DeserSingleton((short)1);
headerDeser[Header.FLOAT_M1] = new DeserSingleton(-1F);
headerDeser[Header.FLOAT_0] = new DeserSingleton(0F);
headerDeser[Header.FLOAT_1] = new DeserSingleton(1F);
headerDeser[Header.DOUBLE_M1] = new DeserSingleton(-1D);
headerDeser[Header.DOUBLE_0] = new DeserSingleton(0D);
headerDeser[Header.DOUBLE_1] = new DeserSingleton(1D);
headerDeser[Header.BYTE_M1] = new DeserSingleton((byte)-1);
headerDeser[Header.BYTE_0] = new DeserSingleton((byte)0);
headerDeser[Header.BYTE_1] = new DeserSingleton((byte)1);
headerDeser[Header.STRING_0] = new DeserSingleton("");
headerDeser[Header.INT] = new DeserSerializer(Serializer.INTEGER);
headerDeser[Header.LONG] = new DeserSerializer(Serializer.LONG);
headerDeser[Header.CHAR] = new DeserSerializer(Serializer.CHAR);
headerDeser[Header.SHORT] = new DeserSerializer(Serializer.SHORT);
headerDeser[Header.FLOAT] = new DeserSerializer(Serializer.FLOAT);
headerDeser[Header.DOUBLE] = new DeserSerializer(Serializer.DOUBLE);
headerDeser[Header.BYTE] = new DeserSerializer(Serializer.BYTE);
headerDeser[Header.STRING] = new Deser(){
@Override
public Object deserialize(DataInput in, FastArrayList objectStack) throws IOException {
return deserializeString(in, DataIO.unpackInt(in));
}
};
headerDeser[Header.STRING_1] = new DeserStringLen(1);
headerDeser[Header.STRING_2] = new DeserStringLen(2);
headerDeser[Header.STRING_3] = new DeserStringLen(3);
headerDeser[Header.STRING_4] = new DeserStringLen(4);
headerDeser[Header.STRING_5] = new DeserStringLen(5);
headerDeser[Header.STRING_6] = new DeserStringLen(6);
headerDeser[Header.STRING_7] = new DeserStringLen(7);
headerDeser[Header.STRING_8] = new DeserStringLen(8);
headerDeser[Header.STRING_9] = new DeserStringLen(9);
headerDeser[Header.STRING_10] = new DeserStringLen(10);
headerDeser[Header.CHAR_255] = new Deser(){
@Override public Object deserialize(DataInput in, FastArrayList objectStack) throws IOException {
return (char) in.readUnsignedByte();
}
};
headerDeser[Header.SHORT_255] = new Deser(){
@Override public Object deserialize(DataInput in, FastArrayList objectStack) throws IOException {
return (short) in.readUnsignedByte();
}
};
headerDeser[Header.SHORT_M255] = new Deser(){
@Override public Object deserialize(DataInput in, FastArrayList objectStack) throws IOException {
return (short) -in.readUnsignedByte();
}
};
headerDeser[Header.FLOAT_255] = new Deser(){
@Override public Object deserialize(DataInput in, FastArrayList objectStack) throws IOException {
return (float) in.readUnsignedByte();
}
};
headerDeser[Header.FLOAT_SHORT] = new Deser(){
@Override public Object deserialize(DataInput in, FastArrayList objectStack) throws IOException {
return (float) in.readShort();
}
};
headerDeser[Header.DOUBLE_255] = new Deser(){
@Override public Object deserialize(DataInput in, FastArrayList objectStack) throws IOException {
return (double) in.readUnsignedByte();
}
};
headerDeser[Header.DOUBLE_SHORT] = new Deser(){
@Override public Object deserialize(DataInput in, FastArrayList objectStack) throws IOException {
return (double) in.readShort();
}
};
headerDeser[Header.DOUBLE_INT] = new Deser(){
@Override public Object deserialize(DataInput in, FastArrayList objectStack) throws IOException {
return (double) in.readInt();
}
};
headerDeser[Header.MA_LONG] = new Deser(){
@Override public Object deserialize(DataInput in, FastArrayList objectStack) throws IOException {
return new Atomic.Long(getEngine(),DataIO.unpackLong(in));
}
};
headerDeser[Header.MA_INT] = new Deser(){
@Override public Object deserialize(DataInput in, FastArrayList objectStack) throws IOException {
return new Atomic.Integer(getEngine(),DataIO.unpackLong(in));
}
};
headerDeser[Header.MA_BOOL] = new Deser(){
@Override public Object deserialize(DataInput in, FastArrayList objectStack) throws IOException {
return new Atomic.Boolean(getEngine(),DataIO.unpackLong(in));
}
};
headerDeser[Header.MA_STRING] = new Deser(){
@Override public Object deserialize(DataInput in, FastArrayList objectStack) throws IOException {
return new Atomic.String(getEngine(),DataIO.unpackLong(in));
}
};
headerDeser[Header.MA_VAR] = new Deser(){
@Override public Object deserialize(DataInput in, FastArrayList objectStack) throws IOException {
return new Atomic.Var(getEngine(), SerializerBase.this,in, objectStack);
}
@Override
public boolean needsObjectStack() {
return true;
}
};
headerDeser[Header.ARRAY_BYTE_ALL_EQUAL] = new Deser(){
@Override public Object deserialize(DataInput in, FastArrayList objectStack) throws IOException {
byte[] b = new byte[DataIO.unpackInt(in)];
Arrays.fill(b, in.readByte());
return b;
}
};
headerDeser[Header.ARRAY_BOOLEAN] = new DeserSerializer(Serializer.BOOLEAN_ARRAY);
headerDeser[Header.ARRAY_INT] = new DeserSerializer(Serializer.INT_ARRAY);
headerDeser[Header.ARRAY_SHORT] = new DeserSerializer(Serializer.SHORT_ARRAY);
headerDeser[Header.ARRAY_DOUBLE] = new DeserSerializer(Serializer.DOUBLE_ARRAY);
headerDeser[Header.ARRAY_FLOAT]= new DeserSerializer(Serializer.FLOAT_ARRAY);
headerDeser[Header.ARRAY_CHAR]= new DeserSerializer(Serializer.CHAR_ARRAY);
headerDeser[Header.ARRAY_BYTE]= new DeserSerializer(Serializer.BYTE_ARRAY);
headerDeser[Header.ARRAY_INT_BYTE] = new Deser(){
@Override public Object deserialize(DataInput in, FastArrayList objectStack) throws IOException {
int[] ret=new int[DataIO.unpackInt(in)];
for(int i=0;i<ret.length;i++)
ret[i] = in.readByte();
return ret;
}
};
headerDeser[Header.ARRAY_INT_SHORT] = new Deser(){
@Override public Object deserialize(DataInput in, FastArrayList objectStack) throws IOException {
int[] ret=new int[DataIO.unpackInt(in)];
for(int i=0;i<ret.length;i++)
ret[i] = in.readShort();
return ret;
}
};
headerDeser[Header.ARRAY_INT_PACKED] = new Deser(){
@Override public Object deserialize(DataInput in, FastArrayList objectStack) throws IOException {
int[] ret=new int[DataIO.unpackInt(in)];
for(int i=0;i<ret.length;i++)
ret[i] = DataIO.unpackInt(in);
return ret;
}
};
headerDeser[Header.ARRAY_LONG_BYTE] = new Deser(){
@Override public Object deserialize(DataInput in, FastArrayList objectStack) throws IOException {
long[] ret=new long[DataIO.unpackInt(in)];
for(int i=0;i<ret.length;i++)
ret[i] = in.readByte();
return ret;
}
};
headerDeser[Header.ARRAY_LONG_SHORT] = new Deser(){
@Override public Object deserialize(DataInput in, FastArrayList objectStack) throws IOException {
long[] ret=new long[DataIO.unpackInt(in)];
for(int i=0;i<ret.length;i++)
ret[i] = in.readShort();
return ret;
}
};
headerDeser[Header.ARRAY_LONG_INT] = new Deser(){
@Override public Object deserialize(DataInput in, FastArrayList objectStack) throws IOException {
long[] ret=new long[DataIO.unpackInt(in)];
for(int i=0;i<ret.length;i++)
ret[i] = in.readInt();
return ret;
}
};
headerDeser[Header.ARRAY_LONG_PACKED] = new Deser(){
@Override public Object deserialize(DataInput in, FastArrayList objectStack) throws IOException {
long[] ret=new long[DataIO.unpackInt(in)];
for(int i=0;i<ret.length;i++)
ret[i] = DataIO.unpackLong(in);
return ret;
}
};
headerDeser[Header.ARRAY_LONG] = new DeserSerializer(Serializer.LONG_ARRAY);
headerDeser[Header.BIGINTEGER] = new DeserSerializer(Serializer.BIG_INTEGER);
headerDeser[Header.BIGDECIMAL] = new DeserSerializer(Serializer.BIG_DECIMAL);
headerDeser[Header.CLASS] = new DeserSerializer(Serializer.CLASS);
headerDeser[Header.DATE] = new DeserSerializer(Serializer.DATE);
headerDeser[Header.UUID] = new DeserSerializer(Serializer.UUID);
headerDeser[Header.ARRAY_OBJECT_ALL_NULL] = new Deser(){
@Override public Object deserialize(DataInput in, FastArrayList objectStack) throws IOException {
int size = DataIO.unpackInt(in);
Class clazz = deserializeClass(in);
return java.lang.reflect.Array.newInstance(clazz, size);
}
};
headerDeser[Header.ARRAY_OBJECT_NO_REFS] = new Deser(){
@Override public Object deserialize(DataInput in, FastArrayList objectStack) throws IOException {
//TODO serializatio code for this does not exist, add it in future
int size = DataIO.unpackInt(in);
Class clazz = deserializeClass(in);
Object[] s = (Object[]) java.lang.reflect.Array.newInstance(clazz, size);
for (int i = 0; i < size; i++){
s[i] = SerializerBase.this.deserialize(in, null);
}
return s;
}
};
headerDeser[Header.OBJECT_STACK] = new Deser() {
@Override public Object deserialize(DataInput in, FastArrayList objectStack) throws IOException {
return objectStack.data[DataIO.unpackInt(in)];
}
@Override public boolean needsObjectStack() {
return true;
}
};
headerDeser[Header.ARRAYLIST] = new Deser() {
@Override public Object deserialize(DataInput in, FastArrayList objectStack) throws IOException {
return deserializeArrayList(in, objectStack);
}
@Override public boolean needsObjectStack() {
return true;
}
};
headerDeser[Header.ARRAY_OBJECT] = new Deser() {
@Override public Object deserialize(DataInput in, FastArrayList objectStack) throws IOException {
return deserializeArrayObject(in, objectStack);
}
@Override public boolean needsObjectStack() {
return true;
}
};
headerDeser[Header.LINKEDLIST] = new Deser() {
@Override public Object deserialize(DataInput in, FastArrayList objectStack) throws IOException {
return deserializeLinkedList(in, objectStack);
}
@Override public boolean needsObjectStack() {
return true;
}
};
headerDeser[Header.TREESET] = new Deser() {
@Override public Object deserialize(DataInput in, FastArrayList objectStack) throws IOException {
return deserializeTreeSet(in, objectStack);
}
@Override public boolean needsObjectStack() {
return true;
}
};
headerDeser[Header.HASHSET] = new Deser() {
@Override public Object deserialize(DataInput in, FastArrayList objectStack) throws IOException {
return deserializeHashSet(in, objectStack);
}
@Override public boolean needsObjectStack() {
return true;
}
};
headerDeser[Header.LINKEDHASHSET] = new Deser() {
@Override public Object deserialize(DataInput in, FastArrayList objectStack) throws IOException {
return deserializeLinkedHashSet(in, objectStack);
}
@Override public boolean needsObjectStack() {
return true;
}
};
headerDeser[Header.TREEMAP] = new Deser() {
@Override public Object deserialize(DataInput in, FastArrayList objectStack) throws IOException {
return deserializeTreeMap(in, objectStack);
}
@Override public boolean needsObjectStack() {
return true;
}
};
headerDeser[Header.HASHMAP] = new Deser() {
@Override public Object deserialize(DataInput in, FastArrayList objectStack) throws IOException {
return deserializeHashMap(in, objectStack);
}
@Override public boolean needsObjectStack() {
return true;
}
};
headerDeser[Header.LINKEDHASHMAP] = new Deser() {
@Override public Object deserialize(DataInput in, FastArrayList objectStack) throws IOException {
return deserializeLinkedHashMap(in, objectStack);
}
@Override public boolean needsObjectStack() {
return true;
}
};
headerDeser[Header.PROPERTIES] = new Deser() {
@Override public Object deserialize(DataInput in, FastArrayList objectStack) throws IOException {
return deserializeProperties(in, objectStack);
}
@Override public boolean needsObjectStack() {
return true;
}
};
headerDeser[Header.PAIR] = new Deser() {
@Override public Object deserialize(DataInput in, FastArrayList objectStack) throws IOException {
return new Fun.Pair(SerializerBase.this, in, objectStack);
}
@Override public boolean needsObjectStack() {
return true;
}
};
headerDeser[Header.MAPDB] = new Deser() {
@Override public Object deserialize(DataInput in, FastArrayList objectStack) throws IOException {
return deserializeMapDB(in,objectStack);
}
@Override public boolean needsObjectStack() {
return true;
}
};
headerDeser[Header.INT_MF3] = new DeserInt(3,true);
headerDeser[ Header.INT_F3] = new DeserInt(3,false);
headerDeser[Header.INT_MF2] = new DeserInt(2,true);
headerDeser[ Header.INT_F2] = new DeserInt(2,false);
headerDeser[Header.INT_MF1] = new DeserInt(1,true);
headerDeser[ Header.INT_F1] = new DeserInt(1,false);
headerDeser[Header.LONG_MF7] = new DeserLong(7,true);
headerDeser[ Header.LONG_F7] = new DeserLong(7,false);
headerDeser[Header.LONG_MF6] = new DeserLong(6,true);
headerDeser[ Header.LONG_F6] = new DeserLong(6,false);
headerDeser[Header.LONG_MF5] = new DeserLong(5,true);
headerDeser[ Header.LONG_F5] = new DeserLong(5,false);
headerDeser[Header.LONG_MF4] = new DeserLong(4,true);
headerDeser[ Header.LONG_F4] = new DeserLong(4,false);
headerDeser[Header.LONG_MF3] = new DeserLong(3,true);
headerDeser[ Header.LONG_F3] = new DeserLong(3,false);
headerDeser[Header.LONG_MF2] = new DeserLong(2,true);
headerDeser[ Header.LONG_F2] = new DeserLong(2,false);
headerDeser[Header.LONG_MF1] = new DeserLong(1,true);
headerDeser[ Header.LONG_F1] = new DeserLong(1,false);
}
/**
* Utility class similar to ArrayList, but with fast identity search.
*/
protected final static class FastArrayList<K> {
public int size ;
public K[] data ;
public FastArrayList(){
size=0;
data = (K[]) new Object[1];
}
public boolean forwardRefs = false;
public void add(K o) {
if (data.length == size) {
//grow array if necessary
data = Arrays.copyOf(data, data.length * 2);
}
data[size] = o;
size++;
}
/**
* This method is reason why ArrayList is not used.
* Search an item in list and returns its index.
* It uses identity rather than 'equalsTo'
* One could argue that TreeMap should be used instead,
* but we do not expect large object trees.
* This search is VERY FAST compared to Maps, it does not allocate
* new instances or uses method calls.
*
* @param obj to find in list
* @return index of object in list or -1 if not found
*/
public int identityIndexOf(Object obj) {
for (int i = 0; i < size; i++) {
if (obj == data[i]){
forwardRefs = true;
return i;
}
}
return -1;
}
}
@Override
public void serialize(final DataOutput out, final Object obj) throws IOException {
serialize(out, obj, new FastArrayList<Object>());
}
public void serialize(final DataOutput out, final Object obj, FastArrayList<Object> objectStack) throws IOException {
if (obj == null) {
out.write(Header.NULL);
return;
}
/**try to find object on stack if it exists*/
if (objectStack != null) {
int indexInObjectStack = objectStack.identityIndexOf(obj);
if (indexInObjectStack != -1) {
//object was already serialized, just write reference to it and return
out.write(Header.OBJECT_STACK);
DataIO.packInt(out, indexInObjectStack);
return;
}
//add this object to objectStack
objectStack.add(obj);
}
//Object[] and String[] are two different classes,
// so getClass()==getClass() fails, but instanceof works
// so special treatment for non-primitive arrays
if(obj instanceof Object[]){
serializeObjectArray(out, (Object[]) obj, objectStack);
return;
}
if(obj == SerializerBase.this){
out.write(Header.MAPDB);
out.write(HeaderMapDB.THIS_SERIALIZER);
return;
}
//try mapdb singletons
final Integer mapdbSingletonHeader = mapdb_all.get(obj);
if(mapdbSingletonHeader!=null){
out.write(Header.MAPDB);
DataIO.packInt(out, mapdbSingletonHeader);
return;
}
Ser s = ser.get(obj.getClass());
if(s!=null){
s.serialize(out,obj,objectStack);
return;
}
//unknown clas
serializeUnknownObject(out,obj,objectStack);