content: /*
   * 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.cassandra.tools.nodetool.stats;
  
  import java.util.HashMap;
  import java.util.Iterator;
  import java.util.List;
  import java.util.Map;
  
  import static com.google.common.base.Throwables.getStackTraceAsString;
  
  import org.apache.cassandra.db.ColumnFamilyStoreMBean;
  import org.apache.cassandra.tools.NodeProbe;
  
  public class DataPathsHolder implements StatsHolder
  {
      public final Map<String, Object> pathsHash = new HashMap<>();
  
      public DataPathsHolder(NodeProbe probe, List<String> tableNames)
      {
          Iterator<Map.Entry<String, ColumnFamilyStoreMBean>> mbeansIterator = probe.getColumnFamilyStoreMBeanProxies();
          while (mbeansIterator.hasNext())
          {
              Map.Entry<String, ColumnFamilyStoreMBean> entry = mbeansIterator.next();
              String keyspaceName = entry.getKey();
              String tableName = entry.getValue().getTableName();
  
              if (!(tableNames.isEmpty() || 
                    tableNames.contains(keyspaceName + '.' + tableName) || 
                    tableNames.contains(keyspaceName) ))
              {
                  continue;
              }
  
              Map<String, List<String>> ksPaths;
              List<String> dataPaths;
  
              try
              {
                  dataPaths = entry.getValue().getDataPaths();
              }
              catch (Throwable e)
              {
                  probe.output().err.println("Failed to get data paths for " + keyspaceName + '.' + tableName + ". Skipped.");
                  probe.output().err.println("error: " + e.getMessage());
                  probe.output().err.println("-- StackTrace --");
                  probe.output().err.println(getStackTraceAsString(e));
                  continue;
              }
  
              if (pathsHash.containsKey(keyspaceName))
              {
                  ksPaths = (Map<String, List<String>>) pathsHash.get(keyspaceName);
              }
              else
              {
                  ksPaths = new HashMap<>();
                  pathsHash.put(keyspaceName, ksPaths);
              }
              ksPaths.put(tableName, dataPaths);
          }
      }
  
      @Override
      public Map<String, Object> convert2Map()
      {
          return pathsHash;
      }
  }
  