示例#1
0
  private Asset createAssetFromResource(Resource resource) {
    // The class of the resource is derived from the class of the base resource.
    // So we can then use the class of the resource as a key to locate the correct asset
    // factory.

    try {
      upgradeReadLockToWriteLock();

      // Check for competing thread beat us to it (not very likely!):

      Asset result = TapestryInternalUtils.getAndDeref(cache, resource);

      if (result != null) {
        return result;
      }

      Class resourceClass = resource.getClass();

      AssetFactory factory = registry.get(resourceClass);

      return factory.createAsset(resource);
    } finally {
      downgradeWriteLockToReadLock();
    }
  }
示例#2
0
  private Asset getAssetForResource(Resource resource) {
    try {
      acquireReadLock();

      Asset result = TapestryInternalUtils.getAndDeref(cache, resource);

      if (result == null) {
        result = createAssetFromResource(resource);
        cache.put(resource, new SoftReference(result));
      }

      return result;
    } finally {
      releaseReadLock();
    }
  }