ProtocolLib/ProtocolLib/src/main/java/com/comphenix/protocol/reflect/compiler/CompiledStructureModifier.java

91 lines
3.0 KiB
Java

/*
* ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
* Copyright (C) 2012 Kristian S. Stangeland
*
* This program is free software; you can redistribute it and/or modify it under the terms of the
* GNU General Public License as published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with this program;
* if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
* 02111-1307 USA
*/
package com.comphenix.protocol.reflect.compiler;
import java.lang.reflect.Field;
import java.util.Map;
import com.comphenix.protocol.reflect.FieldAccessException;
import com.comphenix.protocol.reflect.StructureModifier;
import com.comphenix.protocol.reflect.instances.DefaultInstances;
/**
* Represents a compiled structure modifier.
*
* @author Kristian
* @param <TField> Field type.
*/
public abstract class CompiledStructureModifier<TField> extends StructureModifier<TField> {
// Used to compile instances of structure modifiers
protected StructureCompiler compiler;
public CompiledStructureModifier() {
super();
customConvertHandling = true;
}
// Speed up the default writer
@SuppressWarnings("unchecked")
@Override
public StructureModifier<TField> writeDefaults() throws FieldAccessException {
DefaultInstances generator = DefaultInstances.DEFAULT;
// Write a default instance to every field
for (Map.Entry<Field, Integer> entry : defaultFields.entrySet()) {
Integer index = entry.getValue();
Field field = entry.getKey();
write(index, (TField) generator.getDefault(field.getType()));
}
return this;
}
@SuppressWarnings("unchecked")
@Override
public final TField read(int fieldIndex) throws FieldAccessException {
Object result = readGenerated(fieldIndex);
if (converter != null)
return converter.getSpecific(result);
else
return (TField) result;
}
protected abstract Object readGenerated(int fieldIndex) throws FieldAccessException;
@SuppressWarnings("unchecked")
@Override
public StructureModifier<TField> write(int index, Object value) throws FieldAccessException {
if (converter != null)
value = converter.getGeneric((TField) value);
return writeGenerated(index, value);
}
protected abstract StructureModifier<TField> writeGenerated(int index, Object value) throws FieldAccessException;
@Override
public StructureModifier<TField> withTarget(Object target) {
if (compiler != null)
return compiler.compile(super.withTarget(target));
else
return super.withTarget(target);
}
}