SquirrelJME/SquirrelJME

// -*- Mode: Java; indent-tabs-mode: t; tab-width: 4 -*-
// ---------------------------------------------------------------------------
// SquirrelJME
//     Copyright (C) Stephanie Gawroriski <xer@multiphasicapps.net>
// ---------------------------------------------------------------------------
// SquirrelJME is under the Mozilla Public License Version 2.0.
// See license.mkd for licensing and copyright information.
// ---------------------------------------------------------------------------

package net.multiphasicapps.jsr353;

import com.oracle.json.JsonException;
import com.oracle.json.JsonValue;
import com.oracle.json.stream.JsonParsingException;
import java.io.Closeable;

/**
 * This reads input from an existing JSON object.
 *
 * @since 2014/08/08
 */
public class ValueInput
    extends BaseDecoder.Input
    implements Closeable
{
    /** Value to read from. */
    private JsonValue _val;
    
    /**
     * Reads JSON data from the specified value.
     *
     * @param __v Value to read data from.
     * @since 2014/08/08
     */
    public ValueInput(JsonValue __v)
    {
        
        // Cannot be null
        if (__v == null)
            throw new NullPointerException("No base value specified.");
        
        // Set
        this._val = __v;
    }
    
    /**
     * Reads some input token which could be from some varying kind of
     * input.
     *
     * @return The raw type of token just read, {@code null} if there is
     * nothing left.
     * @throws JsonException Any internal reading errors possibly.
     * @throws JsonParsingException On any parser errors.
     * @since 2014/08/08
     */
    @Override
    protected Data next()
    {
        throw new RuntimeException("TODO -- ValueInput::next() is not " +
            "implemented.");
    }
    
    /**
     * Closes the input.
     *
     * @throws JsonException If it cannot be closed.
     * @since 2014/08/08
     */
    @Override
    public void close()
    {
        synchronized (this.ilock)
        {
            // Ignore if already closed
            if (this._val == null)
                return;
            
            // Mark closed
            this._val = null;
        }
    }
}