* make cache more resilient and fail-safe even if the key class structure changes

source/net/sourceforge/filebot/Cache.java

@@ -1,7 +1,5 @@
-
 package net.sourceforge.filebot;
 
-
 import java.io.Serializable;
 import java.util.Arrays;
 import java.util.logging.Level;
@@ -10,21 +8,18 @@ import java.util.logging.Logger;
 import net.sf.ehcache.CacheManager;
 import net.sf.ehcache.Element;
 
-
 public class Cache {
-	
+
 	public static Cache getCache(String name) {
 		return new Cache(CacheManager.getInstance().getCache(name));
 	}
-	
+
 	private final net.sf.ehcache.Cache cache;
-	
+
-	
 	protected Cache(net.sf.ehcache.Cache cache) {
 		this.cache = cache;
 	}
-	
+
-	
 	public void put(Object key, Object value) {
 		try {
 			cache.put(new Element(key, value));
@@ -33,13 +28,11 @@ public class Cache {
 			remove(key); // fail-safe
 		}
 	}
-	
+
-	
 	public Object get(Object key) {
 		return get(key, Object.class);
 	}
-	
+
-	
 	public <T> T get(Object key, Class<T> type) {
 		try {
 			Element element = cache.get(key);
@@ -47,53 +40,53 @@ public class Cache {
 				return type.cast(element.getValue());
 			}
 		} catch (Exception e) {
-			Logger.getLogger(Cache.class.getName()).log(Level.WARNING, e.getMessage(), e);
+			Logger.getLogger(Cache.class.getName()).log(Level.WARNING, e.getMessage());
 			remove(key); // fail-safe
 		}
-		
+
 		return null;
 	}
-	
+
-	
 	public void remove(Object key) {
 		try {
 			cache.remove(key);
-		} catch (Exception e) {
+		} catch (Exception e1) {
-			Logger.getLogger(Cache.class.getName()).log(Level.WARNING, e.getMessage(), e);
+			Logger.getLogger(Cache.class.getName()).log(Level.WARNING, e1.getMessage());
+			try {
+				Logger.getLogger(Cache.class.getName()).log(Level.INFO, "Cached data has become invalid: Clearing cache now");
+				cache.removeAll();
+			} catch (Exception e2) {
+				Logger.getLogger(Cache.class.getName()).log(Level.SEVERE, e2.getMessage());
+			}
 		}
 	}
-	
+
-	
 	public static class Key implements Serializable {
-		
+
 		protected Object[] fields;
-		
+
-		
 		public Key(Object... fields) {
 			this.fields = fields;
 		}
-		
+
-		
 		@Override
 		public int hashCode() {
 			return Arrays.hashCode(fields);
 		}
-		
+
-		
 		@Override
 		public boolean equals(Object other) {
 			if (other instanceof Key) {
 				return Arrays.equals(this.fields, ((Key) other).fields);
 			}
-			
+
 			return false;
 		}
-		
+
-		
 		@Override
 		public String toString() {
 			return Arrays.toString(fields);
 		}
 	}
-	
+
 }