| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.tamaya.usagetracker.internal; |
| |
| import org.apache.tamaya.spi.FilterContext; |
| import org.apache.tamaya.spi.PropertyFilter; |
| import org.apache.tamaya.spi.PropertyValue; |
| import org.apache.tamaya.spi.ServiceContextManager; |
| import org.apache.tamaya.usagetracker.spi.ConfigUsageSpi; |
| |
| import javax.annotation.Priority; |
| |
| /** |
| * Configuration filter to be applied at the end of the filter chain. This filter |
| * actually does not change the current filter createValue, but use the filter process |
| * to track configuration usage. |
| */ |
| @Priority(Integer.MAX_VALUE) |
| public class UsageTrackerFilter implements PropertyFilter{ |
| |
| @Override |
| public PropertyValue filterProperty(PropertyValue value, FilterContext context) { |
| ConfigUsageSpi tracker = ServiceContextManager.getServiceContext().getService(ConfigUsageSpi.class); |
| if (context.isSinglePropertyScoped()) { |
| tracker.recordSingleKeyAccess(value, context.getConfigurationContext()); |
| } else { |
| tracker.recordAllPropertiesAccess(context.getConfigurationContext()); |
| } |
| return value; |
| } |
| } |