/*
 * ProxiedArrayThing.java
 *
 * Copyright (c) 2007 Operational Dynamics Consulting Pty Ltd
 * 
 * The code in this file, and the program it is a part of, are made available
 * to you by the authors under the terms of the "GNU General Public Licence,
 * version 2" See the LICENCE file for the terms governing usage and
 * redistribution.
 */
package com.operationaldynamics.codegen;

import com.operationaldynamics.driver.DefsFile;

/**
 * Represent arrays of Proxies, or a Proxy used as an out parameter, that
 * needs to be wrapped as an array in Java.
 * 
 * @author Vreixo Formoso
 */
public class ProxiedArrayThing extends ArrayThing
{

    public ProxiedArrayThing(String gType, Thing type) {
        super(gType, type);
    }

    protected ProxiedArrayThing() {}

    String translationToJava(String name, DefsFile data) {
        String newArray = "new " + type.javaTypeInContext(data) + "[" + name + ".length]";
        if (type instanceof ObjectThing) {
            return "(" + javaTypeInContext(data) + ") objectArrayFor(" + name + ", " + newArray + ")";
        } else {
            return "(" + javaTypeInContext(data) + ") boxedArrayFor(" + type.javaTypeInContext(data)
                    + ".class, " + name + ", " + newArray + ")";
        }
    }

    String translationToNative(String name) {
        return "_" + name;
    }

    String jniConversionDecode(String name) {
        return "bindings_java_convert_jarray_to_gpointer(env, _" + name + ")";
    }

    String jniConversionCleanup(String name) {
        return "bindings_java_convert_gpointer_to_jarray(env, (gpointer*)" + name + ", _" + name + ")";
    }

    /*
     * FIXME we would need a way to figure out the size of the array, and then
     * create a new java array with NewXXXArray and copy there the elements.
     * This is a clear candidate for code override, as it seems to be very
     * hard to manage in an automatic way.
     */
    String jniReturnEncode(String name) {
        System.out.println("Warning: Not supported return of GObject/GBoxed array.");
        return "NULL";
    }

    String jniReturnErrorValue() {
        return "NULL";
    }

    String extraTranslationToJava(String name, DefsFile data) {
        if (type instanceof InterfaceThing) {
            return "fillObjectArray((Object[])" + name + ", _" + name + ")";
        } else if (type instanceof ObjectThing) {
            return "fillObjectArray(" + name + ", _" + name + ")";
        } else {
            return "fillBoxedArray(" + type.javaTypeInContext(data) + ".class, " + name + ", _" + name
                    + ")";
        }
    }

    String extraTranslationToNative(String name) {
        if (type instanceof InterfaceThing) {
            return "pointersOf((Object[])" + name + ")";
        } else {
            return "pointersOf(" + name + ")";
        }
    }

    boolean needExtraTranslation() {
        return true;
    }
}