# HG changeset patch
# User japod@localhost
# Date 1222783892 -7200
# Node ID 36331f7244bd809e22809d17a729e7a68cc28935
# Parent  724f953a5f3e2a691ade506cae4e32d66663677c
finishing update of solution 04 to 1.5

diff -r 724f953a5f3e -r 36331f7244bd task1/solution04/src/org/apidesign/apifest08/currency/CurrencyValues.java
--- a/task1/solution04/src/org/apidesign/apifest08/currency/CurrencyValues.java	Tue Sep 30 15:17:24 2008 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,122 +0,0 @@
-package org.apidesign.apifest08.currency;
-
-
-import java.math.BigDecimal;
-import java.util.Currency;
-import java.util.HashMap;
-import java.util.Map;
-import java.util.Timer;
-import java.util.TimerTask;
-
-
-/**
- * Keeps track of the current value for each currency as USD.  
- * 
- * @author D'Arcy Smith
- * @version 1.0
- */
-class CurrencyValues
-{
-    /**
-     * The values expressed in USD.
-     */
-    private static Map<Currency, BigDecimal> values;
-    
-    /**
-     * Update the values periodically
-     */
-    private static final Timer refresher;
-
-    static
-    {
-        final Refresher refresherTask;
-        final long delay;
-
-        // load the map NOW! (don't use the scheduler to do it just because we want
-        // to be 100% certain it is loaded before anything else can be called.
-        refresh();
-
-        refresherTask = new Refresher();
-        refresher = new Timer("CurrencyValues Refresher", true);
-
-        // update once an hour
-        delay = 1000 * 60 * 60;
-        refresher.scheduleAtFixedRate(refresherTask, delay, delay);
-    }
-    
-    /**
-     * Prevent accidental creation.
-     */
-    private CurrencyValues()
-    {
-    }
-        
-    /**
-     * Refresh the currency values.
-     */
-    static void refresh()
-    {
-        Map<Currency, BigDecimal> newValues;    
-        Currency                  currency;
-        
-        newValues = new HashMap<Currency, BigDecimal>();
-
-        // these would update from a data source, database, web service, something...
-        currency = Currency.getInstance("USD");
-        newValues.put(currency, BigDecimal.valueOf(1.0).setScale(2));
-        
-        currency = Currency.getInstance("CZK");
-        newValues.put(currency, BigDecimal.valueOf(17.0));
-        
-        currency = Currency.getInstance("SKK");
-        newValues.put(currency, BigDecimal.valueOf(21.25));
-        
-        // don't sycnhronize all of it because clients can use slightly out of
-        // date information.
-        synchronized(CurrencyValues.class)
-        {
-            values = newValues;
-        }
-    }
-
-    /**
-     * Get the value of the specified currency in USD.
-     * 
-     * @param currency the corrency to get.
-     * @return the value of the currency in USD.
-     * @throws IllegalArgumentException if currency is null.
-     */
-    static BigDecimal getValue(final Currency currency)
-    {
-        final BigDecimal value;
-
-        if(currency == null)
-        {
-            throw new IllegalArgumentException("currencyName cannot be null");
-        }
-
-        // make sure we are not updating the map right now
-        synchronized(CurrencyValues.class)
-        {
-            value = values.get(currency);
-        }
-
-        return (value);
-    }
-    
-    /**
-     * Used to update the currency map periodically.
-     */
-    private static class Refresher
-        extends TimerTask
-    {
-        /**
-         * call the refresh method.
-         */
-        @Override
-        public void run() 
-        {
-            refresh();
-        }
-    }
-}