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package org.msgpack.impl;
import java.util.List;
import java.util.ArrayList;
import java.util.HashMap;
import org.msgpack.schema.*;
public final class SpecificObjectBuilder implements ObjectBuilder {
private int top;
private Schema schema;
public SpecificObjectBuilder(Schema schema)
{
this.top = 0;
this.schema = schema;
}
void setSchema(Schema s)
{
schema = s;
}
Schema swapSchema(Schema s)
{
Schema old = schema;
schema = s;
return old;
}
@Override
public Object createNil()
{
return schema.createNil();
}
@Override
public Object createBoolean(boolean v)
{
return schema.createBoolean(v);
}
@Override
public Object createByte(byte v)
{
return schema.createByte(v);
}
@Override
public Object createShort(short v)
{
return schema.createShort(v);
}
@Override
public Object createInt(int v)
{
return schema.createInt(v);
}
@Override
public Object createLong(long v)
{
return schema.createLong(v);
}
@Override
public Object createFloat(float v)
{
return schema.createFloat(v);
}
@Override
public Object createDouble(double v)
{
return schema.createDouble(v);
}
@Override
public Object createRaw(byte[] b, int offset, int length)
{
return schema.createRaw(b, offset, length);
}
@Override
public ArrayBuilder createArray(int length)
{
if(schema instanceof ClassSchema) {
return new ClassBuilder(length, (ClassSchema)schema, this);
}
ArraySchema as = (ArraySchema)schema;
return new SpecificArrayBuilder(length, as.getElementType(), this);
}
@Override
public MapBuilder createMap(int length)
{
MapSchema ms = (MapSchema)schema;
return new SpecificMapBuilder(length, ms.getKeyType(), ms.getValueType(), this);
}
}
final class SpecificArrayBuilder implements ArrayBuilder {
private ArrayList a;
private SpecificObjectBuilder builder;
private Schema parentSchema;
SpecificArrayBuilder(int length, Schema elementSchema, SpecificObjectBuilder builder)
{
this.a = new ArrayList(length);
this.builder = builder;
this.parentSchema = builder.swapSchema(elementSchema);
}
public void add(Object element)
{
a.add(element);
}
public Object finish()
{
builder.swapSchema(parentSchema);
return a;
}
}
final class SpecificMapBuilder implements MapBuilder {
private HashMap m;
private Object key;
private Schema keySchema;
private Schema valueSchema;
private SpecificObjectBuilder builder;
private Schema parentSchema;
SpecificMapBuilder(int length, Schema keySchema, Schema valueSchema, SpecificObjectBuilder builder)
{
this.m = new HashMap(length);
this.keySchema = keySchema;
this.valueSchema = valueSchema;
this.builder = builder;
this.parentSchema = builder.swapSchema(keySchema);
}
@Override
public void putKey(Object key)
{
this.key = key;
this.builder.setSchema(valueSchema);
}
@Override
public void putValue(Object value)
{
m.put(this.key, value);
this.key = null;
this.builder.setSchema(keySchema);
}
@Override
public Object finish()
{
builder.swapSchema(parentSchema);
return m;
}
}
final class ClassBuilder implements ArrayBuilder {
private Object object;
private int index;
private List<? extends FieldSchema> fields;
private SpecificObjectBuilder builder;
private Schema parentSchema;
ClassBuilder(int length, ClassSchema schema, SpecificObjectBuilder builder)
{
this.object = schema.newInstance();
this.index = 0;
this.fields = schema.getFields();
this.builder = builder;
this.parentSchema = builder.swapSchema(fields.get(0).getType());
// FIXME check length
}
@Override
public void add(Object element)
{
FieldSchema f = fields.get(index++); // FIXME check fields.size
f.setFieldValue(object, element); // XXX FIXME debug
if(fields.size() > index) {
builder.setSchema( fields.get(index).getType() );
} else {
builder.setSchema( null );
// FIXME: builder.setSchema(new InvalidFieldSchema);
}
}
@Override
public Object finish()
{
builder.swapSchema(parentSchema);
return object;
}
}
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