CreateDiskStoreFunction.java example

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/*
 * 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.geode.management.internal.cli.functions;

/**
 * Function used by the 'create disk-store' gfsh command to create a disk store on each member.
 * 
 * @since GemFire 8.0
 */
import org.apache.logging.log4j.Logger;

import org.apache.geode.LogWriter;
import org.apache.geode.SystemFailure;
import org.apache.geode.cache.CacheClosedException;
import org.apache.geode.cache.CacheFactory;
import org.apache.geode.cache.DiskStoreFactory;
import org.apache.geode.cache.execute.FunctionAdapter;
import org.apache.geode.cache.execute.FunctionContext;
import org.apache.geode.distributed.DistributedMember;
import org.apache.geode.internal.InternalEntity;
import org.apache.geode.internal.cache.DiskStoreAttributes;
import org.apache.geode.internal.cache.GemFireCacheImpl;
import org.apache.geode.internal.cache.xmlcache.CacheXml;
import org.apache.geode.internal.logging.LogService;
import org.apache.geode.management.internal.configuration.domain.XmlEntity;

public class CreateDiskStoreFunction extends FunctionAdapter implements InternalEntity {
  private static final Logger logger = LogService.getLogger();

  private static final long serialVersionUID = 1L;

  @Override
  public void execute(FunctionContext context) {
    // Declared here so that it's available when returning a Throwable
    String memberId = "";
    try {
      final Object[] args = (Object[]) context.getArguments();
      final String diskStoreName = (String) args[0];
      final DiskStoreAttributes diskStoreAttrs = (DiskStoreAttributes) args[01];

      GemFireCacheImpl cache = (GemFireCacheImpl) CacheFactory.getAnyInstance();

      DistributedMember member = cache.getDistributedSystem().getDistributedMember();

      memberId = member.getId();
      // If they set a name use it instead
      if (!member.getName().equals("")) {
        memberId = member.getName();
      }

      DiskStoreFactory diskStoreFactory = cache.createDiskStoreFactory(diskStoreAttrs);
      diskStoreFactory.create(diskStoreName);

      XmlEntity xmlEntity = new XmlEntity(CacheXml.DISK_STORE, "name", diskStoreName);
      context.getResultSender().lastResult(new CliFunctionResult(memberId, xmlEntity, "Success"));

    } catch (CacheClosedException cce) {
      context.getResultSender().lastResult(new CliFunctionResult(memberId, false, null));

    } catch (VirtualMachineError e) {
      SystemFailure.initiateFailure(e);
      throw e;

    } catch (Throwable th) {
      SystemFailure.checkFailure();
      logger.error("Could not create disk store: {}", th.getMessage(), th);
      context.getResultSender().lastResult(new CliFunctionResult(memberId, th, null));
    }
  }

  @Override
  public String getId() {
    return CreateDiskStoreFunction.class.getName();
  }
}