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World Wind is a collection of components that interactively display 3D geographic information within Java applications or applets.
/*
* Copyright (C) 2012 United States Government as represented by the Administrator of the
* National Aeronautics and Space Administration.
* All Rights Reserved.
*/
package gov.nasa.worldwind.util;
/**
* Base class for text decoders. This decoder handles caching the decoded text, but does not provide any actual decoding
* logic. This class is thread safe.
*
* @author pabercrombie
* @version $Id: BasicTextDecoder.java 1171 2013-02-11 21:45:02Z dcollins $
*/
public class BasicTextDecoder implements TextDecoder
{
protected String text;
protected String decodedText;
protected long lastUpdateTime;
/** {@inheritDoc} */
public synchronized void setText(String input)
{
this.text = input;
this.decodedText = null;
this.lastUpdateTime = System.currentTimeMillis();
}
/** {@inheritDoc} */
public synchronized String getDecodedText()
{
if (this.decodedText == null)
{
this.decodedText = this.decode(this.text);
this.lastUpdateTime = System.currentTimeMillis();
this.text = null; // Release reference to source text
}
return this.decodedText;
}
/** {@inheritDoc} */
public long getLastUpdateTime()
{
return this.lastUpdateTime;
}
/**
* Decode the text. Subclasses may override this method to change the decoding.
*
* @param textToDecode The text to decode.
*
* @return Decoded text.
*/
protected String decode(String textToDecode)
{
return textToDecode;
}
}