/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source 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.
*
* Resin Open Source 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, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Nam Nguyen
*/
package com.caucho.quercus.env;
import java.io.IOException;
import java.io.PrintWriter;
/**
* Represents a compileable piece of an array.
*/
public class ArrayValueComponent
{
public static final int MAX_SIZE = 512;
public static final int MAX_DYNAMIC_SIZE = 1024;
protected Value []_keys;
protected Value []_values;
public ArrayValueComponent()
{
init();
}
public ArrayValueComponent(Value []keys, Value []values)
{
_keys = keys;
_values = values;
}
public static ArrayValueComponent[] create(ArrayValue array)
{
int size = array.getSize();
int bins = size / MAX_SIZE;
if (size % MAX_SIZE > 0)
bins++;
ArrayValueComponent []components = new ArrayValueComponent[bins];
int bin = 0;
Value []keys = array.keysToArray();
Value []values = array.valuesToArray();
while (bin < bins) {
int binSize = MAX_SIZE;
if (bin + 1 == bins)
binSize = size - bin * MAX_SIZE;
Value []k = new Value[binSize];
Value []v = new Value[binSize];
System.arraycopy(keys, bin * MAX_SIZE, k, 0, binSize);
System.arraycopy(values, bin * MAX_SIZE, v, 0, binSize);
components[bin] = new ArrayValueComponent(k, v);
bin++;
}
return components;
}
public static void generate(PrintWriter out, ArrayValue array)
throws IOException
{
int size = array.getSize();
int bins = size / MAX_SIZE;
if (size % MAX_SIZE > 0)
bins++;
int bin = 0;
Value []keys = array.keysToArray();
Value []values = array.valuesToArray();
out.print("new ArrayValueComponent[] {");
while (bin < bins) {
int binSize = MAX_SIZE;
if (bin != 0)
out.print(", ");
if (bin + 1 == bins)
binSize = size - bin * MAX_SIZE;
out.println("new ArrayValueComponent() {");
out.println(" public void init() {");
out.print(" _keys = new Value[] {");
for (int i = 0; i < binSize; i++) {
if (i != 0)
out.print(", ");
keys[i + bin * MAX_SIZE].generate(out);
}
out.println("};");
out.print(" _values = new Value[] {");
for (int i = 0; i < binSize; i++) {
if (i != 0)
out.print(", ");
values[i + bin * MAX_SIZE].generate(out);
}
out.println("};");
out.println(" }");
out.println(" }");
bin++;
}
out.print("}");
}
public void init()
{
}
public void init(Env env)
{
}
public final void addTo(ArrayValue array)
{
for (int i = 0; i < _keys.length; i++) {
if (_keys[i] != null)
array.append(_keys[i], _values[i]);
else
array.put(_values[i]);
}
}
public Value[] getKeys()
{
return _keys;
}
public Value[] getValues()
{
return _values;
}
}