DelegatingHBaseShim.java

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* Pentaho Big Data
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* Copyright (C) 2002-2014 by Pentaho : http://www.pentaho.com
*
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* 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
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* Unless required by applicable law or agreed to in writing, software
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package org.pentaho.hadoop.shim.common.delegating;

import org.apache.hadoop.conf.Configuration;
import org.pentaho.hadoop.shim.ShimVersion;
import org.pentaho.hadoop.shim.api.process.Processable;
import org.pentaho.hadoop.shim.common.authorization.HadoopAuthorizationService;
import org.pentaho.hadoop.shim.common.authorization.HasHadoopAuthorizationService;
import org.pentaho.hbase.shim.common.wrapper.HBaseShimInterface;
import org.pentaho.hbase.shim.spi.HBaseConnection;
import org.pentaho.hbase.shim.spi.HBaseShim;

public class DelegatingHBaseShim extends HBaseShim implements HasHadoopAuthorizationService, HBaseShimInterface,
  Processable {
  private HBaseShimInterface delegate;

  @Override
  public ShimVersion getVersion() {
    return delegate.getVersion();
  }

  @Override
  public void setHadoopAuthorizationService( HadoopAuthorizationService hadoopAuthorizationService ) {
    delegate = hadoopAuthorizationService.getShim( HBaseShimInterface.class );
  }

  @Override
  public HBaseConnection getHBaseConnection() {
    return delegate.getHBaseConnection();
  }

  @Override
  public void setInfo( Configuration configuration ) {
    delegate.setInfo( configuration );
  }

  @Override public void process( org.pentaho.hadoop.shim.api.Configuration configuration ) {
    Processable processable;
    if ( Processable.class.isInstance( delegate ) ) {
      processable = (Processable) delegate;
      processable.process( configuration );
    }
  }
}