fsunknownaction.java

利用opensource的开源jar实现生成flash文件

/*
 * FSUnknownAction.java
 * Transform
 * 
 * Copyright (c) 2001-2006 Flagstone Software Ltd. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification, 
 * are permitted provided that the following conditions are met:
 *
 *  * Redistributions of source code must retain the above copyright notice, this
 *    list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright notice, 
 *    this list of conditions and the following disclaimer in the documentation 
 *    and/or other materials provided with the distribution.
 *  * Neither the name of Flagstone Software Ltd. nor the names of its contributors 
 *    may be used to endorse or promote products derived from this software 
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 
 * IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 
 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package com.flagstone.transform;

/**
FSUnknownAction class is used to represent any action decoded from a Flash file that 
 is currently not supported by the framework. 
 
<p>This allows Flash files to be parsed, processed and encoded without affecting any of the actions not directly supported.</p>

<table class="datasheet">

<tr><th align="left" colspan="2">Attributes</th></tr>

<tr>
<td><a name="FSUnknownAction_0">type</a></td>
<td>The value used to identify the type of action. Read-only.</td>
</tr>

<tr>
<td><a name="FSUnknownAction_1">data</a></td>
<td>The encoded bytes that make up the body of the action's data structure.</td>
</tr>
</table>

<p>The object provides direct access to the encoded data of the action offering the possibility to encode and decode actions that are not directly supported in the current release of the framework. However a detailed knowledge of how the action is encoded and decoded is required.</p>
 */
public class FSUnknownAction extends FSActionObject
{
    private byte[] data = null;
    
    /**
     * Construct an FSUnknownAction object, initalizing it with values decoded 
     * from an encoded object.
     * 
     * @param coder an FSCoder containing the binary data.
     */
    public FSUnknownAction(FSCoder coder)
    {
        super(0);
        decode(coder);
    }
    /** Constructs an FSUnknownAction object of the specified type with the encoded Flash data.

        @param aType the code identifying the action type.
        @param bytes the encoded data for the action.
        */
    public FSUnknownAction(int aType, byte[] bytes)
    {
        super(aType);
        data = bytes;
    }
    /**
     * Constructs an FSUnknownAction object by copying values from an existing 
     * object.
     *
     * @param obj an FSUnknownAction object.
     */
    public FSUnknownAction(FSUnknownAction obj)
    {
        super(obj);
        
        if (obj.data != null)
            data = Transform.clone(obj.data);
    }    

    /** Gets the encoded data for the action.

        @return an array of bytes representing the action data when encoded to a Flash file.
        */
    public byte[] getData()
    {
        return data;
    }

    /** Sets the encoded data for the action.

        @param bytes the encoded data for the action.
        */
    public void setData(byte[] bytes)
    {
        data = bytes;
    }

    public Object clone()
    {
        FSUnknownAction anObject = (FSUnknownAction)super.clone();
        
        anObject.data = Transform.clone(data);
    
        return anObject;
    }

    public boolean equals(Object anObject)
    {
        boolean result = false;
        
        if (super.equals(anObject))
        {
            FSUnknownAction typedObject = (FSUnknownAction)anObject;
            
            result = Transform.equals(data, typedObject.data);
        }
        return result;
    }

    public void appendDescription(StringBuffer buffer, int depth)
    {
        buffer.append(name());
    }

    public int length(FSCoder coder)
    {
        super.length(coder);
        
        length += data.length;

        return length;
    }
    
    public void encode(FSCoder coder)
    {
        super.encode(coder);
        coder.writeBytes(data);
        coder.endObject(name());
    }
    
    public void decode(FSCoder coder)
    {
        super.decode(coder);
        
        if (length > 0)
        {
            data = new byte[length];
            coder.readBytes(data);
        }
        else
            data = new byte[] {};

        coder.endObject(name());
    }
}