added CacheConfigurationReader for GuavaCacheManager

scm-webapp/src/main/java/sonia/scm/cache/CacheManagerConfiguration.java

@@ -33,6 +33,7 @@ package sonia.scm.cache;
 
 //~--- JDK imports ------------------------------------------------------------
 
+import java.util.Collections;
 import java.util.List;
 
 import javax.xml.bind.annotation.XmlAccessType;
@@ -49,6 +50,28 @@ import javax.xml.bind.annotation.XmlRootElement;
 public class CacheManagerConfiguration
 {
 
+  /**
+   * Constructs ...
+   *
+   */
+  public CacheManagerConfiguration() {}
+
+  /**
+   * Constructs ...
+   *
+   *
+   * @param defaultCache
+   * @param caches
+   */
+  public CacheManagerConfiguration(CacheConfiguration defaultCache,
+    List<NamedCacheConfiguration> caches)
+  {
+    this.defaultCache = defaultCache;
+    this.caches = caches;
+  }
+
+  //~--- get methods ----------------------------------------------------------
+
   /**
    * Method description
    *
@@ -57,6 +80,9 @@ public class CacheManagerConfiguration
    */
   public List<NamedCacheConfiguration> getCaches()
   {
+    if ( caches == null ){
+      caches = Collections.EMPTY_LIST;
+    }
     return caches;
   }
 
@@ -78,6 +104,6 @@ public class CacheManagerConfiguration
   private List<NamedCacheConfiguration> caches;
 
   /** Field description */
-  @XmlElement(name = "cache")
+  @XmlElement(name = "defaultCache")
   private CacheConfiguration defaultCache;
 }