FileStoreJmx.java

/*
   Copyright (c) 2012 LinkedIn Corp.

   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.linkedin.d2.jmx;

import java.io.File;
import java.io.UnsupportedEncodingException;
import java.util.Arrays;
import java.util.List;

import com.linkedin.d2.discovery.PropertySerializationException;
import com.linkedin.d2.discovery.stores.PropertyStoreException;
import com.linkedin.d2.discovery.stores.file.FileStore;

public class FileStoreJmx<T> implements FileStoreJmxMBean
{
  private final FileStore<T> _store;

  public FileStoreJmx(FileStore<T> store)
  {
    _store = store;
  }

  @Override
  public String get(String listenTo)
  {
    return _store.get(listenTo) + "";
  }

  @Override
  public String getPath()
  {
    return _store.getPath();
  }

  @Override
  public List<String> ls()
  {
    return Arrays.asList(new File(_store.getPath()).list());
  }

  @Override
  public void put(String listenTo, String discoveryProperties) throws PropertyStoreException
  {
    try
    {
      _store.put(listenTo, _store.getSerializer()
                                 .fromBytes(discoveryProperties.getBytes("UTF-8")));
    }
    catch (PropertySerializationException e)
    {
      throw new PropertyStoreException(e);
    }
    catch (UnsupportedEncodingException e)
    {
      throw new RuntimeException("UTF-8 should never fail", e);
    }
  }

  @Override
  public void remove(String listenTo)
  {
    _store.remove(listenTo);
  }

  @Override
  public long getGetCount()
  {
    return _store.getGetCount();
  }

  @Override
  public long getPutCount()
  {
    return 0;
  }

  @Override
  public long getRemoveCount()
  {
    return 0;
  }
}