exec/java-exec/src/main/java/org/apache/drill/exec/server/rest/PluginConfigWrapper.java

/*
 * 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.drill.exec.server.rest;

import javax.xml.bind.annotation.XmlRootElement;

import org.apache.drill.common.exceptions.ExecutionSetupException;
import org.apache.drill.common.logical.StoragePluginConfig;
import org.apache.drill.exec.store.StoragePluginRegistry;

import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;

@XmlRootElement
public class PluginConfigWrapper {

  private final String name;
  private final StoragePluginConfig config;
  private final boolean exists;

  @JsonCreator
  public PluginConfigWrapper(@JsonProperty("name") String name, @JsonProperty("config") StoragePluginConfig config) {
    this.name = name;
    this.config = config;
    this.exists = config != null;
  }

  public String getName() {
    return name;
  }

  public StoragePluginConfig getConfig() {
    return config;
  }

  public boolean enabled() {
    return exists && config.isEnabled();
  }

  public void createOrUpdateInStorage(StoragePluginRegistry storage) throws ExecutionSetupException {
    storage.put(name, config);
  }

  public boolean setEnabledInStorage(StoragePluginRegistry storage, boolean enabled) throws ExecutionSetupException {
    if (exists) {
      config.setEnabled(enabled);
      createOrUpdateInStorage(storage);
    }
    return exists;
  }

  public boolean exists() {
    return exists;
  }

  public boolean deleteFromStorage(StoragePluginRegistry storage) {
    if (exists) {
      storage.remove(name);
      return true;
    }
    return false;
  }
}