content: /*
   * Tencent is pleased to support the open source community by making Angel available.
   *
   * Copyright (C) 2017-2018 THL A29 Limited, a Tencent company. All rights reserved.
   *
   * 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
   *
   * https://opensource.org/licenses/Apache-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.tencent.angel.webapp.page;
  
  import com.google.inject.Inject;
  import com.tencent.angel.exception.UnvalidIdStrException;
  import com.tencent.angel.master.app.AMContext;
  import com.tencent.angel.worker.WorkerAttemptId;
  import org.apache.hadoop.yarn.webapp.hamlet.Hamlet;
  import org.apache.hadoop.yarn.webapp.hamlet.Hamlet.TABLE;
  import org.apache.hadoop.yarn.webapp.view.HtmlBlock;
  
  import java.util.Map;
  
  import static com.tencent.angel.webapp.AngelParams.WORKER_ATTEMPT_ID;
  import static org.apache.hadoop.yarn.util.StringHelper.join;
  import static org.apache.hadoop.yarn.webapp.view.JQueryUI._TH;
  
  public class WorkerCounterBlock extends HtmlBlock {
    final AMContext amContext;
  
    @Inject WorkerCounterBlock(AMContext amctx) {
      amContext = amctx;
    }
  
    @Override protected void render(Block html) {
      set(TITLE, join("Angel WorkerCounterBlock", $(WORKER_ATTEMPT_ID)));
  
      try {
        WorkerAttemptId workerAttemptId = new WorkerAttemptId($(WORKER_ATTEMPT_ID));
  
        Map<String, String> metricsMap =
          amContext.getWorkerManager().getWorker(workerAttemptId.getWorkerId())
            .getWorkerAttempt(workerAttemptId).getMetrics();
        TABLE<Hamlet> worker_metrics_table = html.table();
        html.h6($(WORKER_ATTEMPT_ID));
  
        worker_metrics_table.tr().th(_TH, "NAME").th(_TH, "VALUE")._();
        for (String key : metricsMap.keySet()) {
          String value = metricsMap.get(key);
          worker_metrics_table.tr().td(String.valueOf(key)).td(value)._();
        }
        worker_metrics_table._();
      } catch (UnvalidIdStrException e) {
        LOG.error("unvalid id string, ", e);
      }
    }
  }
  