content: /*
   * Copyright 1999-2019 Alibaba Group Holding Ltd.
   *
   * Licensed 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 com.alibaba.csp.sentinel.metric.extension.callback;
  
  import com.alibaba.csp.sentinel.context.Context;
  import com.alibaba.csp.sentinel.metric.extension.AdvancedMetricExtension;
  import com.alibaba.csp.sentinel.metric.extension.MetricExtension;
  import com.alibaba.csp.sentinel.metric.extension.MetricExtensionProvider;
  import com.alibaba.csp.sentinel.node.DefaultNode;
  import com.alibaba.csp.sentinel.slotchain.ProcessorSlotEntryCallback;
  import com.alibaba.csp.sentinel.slotchain.ResourceWrapper;
  import com.alibaba.csp.sentinel.slots.block.BlockException;
  
  /**
   * Metric extension entry callback.
   *
   * @author Carpenter Lee
   * @since 1.6.1
   */
  public class MetricEntryCallback implements ProcessorSlotEntryCallback<DefaultNode> {
  
      @Override
      public void onPass(Context context, ResourceWrapper rw, DefaultNode param, int count, Object... args)
          throws Exception {
          for (MetricExtension m : MetricExtensionProvider.getMetricExtensions()) {
              if (m instanceof AdvancedMetricExtension) {
                  ((AdvancedMetricExtension) m).onPass(rw, count, args);
              } else {
                  m.increaseThreadNum(rw.getName(), args);
                  m.addPass(rw.getName(), count, args);
              }
          }
      }
  
      @Override
      public void onBlocked(BlockException ex, Context context, ResourceWrapper resourceWrapper, DefaultNode param,
                            int count, Object... args) {
          for (MetricExtension m : MetricExtensionProvider.getMetricExtensions()) {
              if (m instanceof AdvancedMetricExtension) {
                  ((AdvancedMetricExtension) m).onBlocked(resourceWrapper, count, context.getOrigin(), ex, args);
              } else {
                  m.addBlock(resourceWrapper.getName(), count, context.getOrigin(), ex, args);
              }
          }
      }
  }
  