src/org/objectweb/cjdbc/common/monitor/backend/AbstractBackendDataCollector.java

説明を見る。

package org.objectweb.cjdbc.common.monitor.backend;

import org.objectweb.cjdbc.common.exceptions.DataCollectorException;
import org.objectweb.cjdbc.common.exceptions.ExceptionTypes;
import org.objectweb.cjdbc.common.monitor.AbstractDataCollector;
import org.objectweb.cjdbc.controller.backend.DatabaseBackend;
import org.objectweb.cjdbc.controller.core.Controller;
import org.objectweb.cjdbc.controller.virtualdatabase.VirtualDatabase;

public abstract class AbstractBackendDataCollector
    extends
      AbstractDataCollector
{
  private String backendName;
  private String virtualDatabaseName;

  public AbstractBackendDataCollector(String backendName,
      String virtualDatabaseName)
  {
    super();
    this.backendName = backendName;
    this.virtualDatabaseName = virtualDatabaseName;
  }

  public long collectValue() throws DataCollectorException
  {
    try
    {
      VirtualDatabase vdb = ((Controller)controller).getVirtualDatabase(
          virtualDatabaseName);
      DatabaseBackend db = vdb.getAndCheckBackend(backendName,
          VirtualDatabase.NO_CHECK_BACKEND);
      return this.getValue(db);
    }
    catch (Exception e)
    {
      throw new DataCollectorException(ExceptionTypes.BACKEND_NOT_ACCESSIBLE);
    }
  }

  public abstract long getValue(Object backend);
  
  

  public String getTargetName()
  {
    return backendName;
  }
}

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