core/src/main/java/org/apache/carbondata/core/util/CarbonSessionInfo.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.carbondata.core.util;

import java.io.Serializable;
import java.util.HashMap;
import java.util.Map;

/**
 * This class maintains carbon session information details
 */
public class CarbonSessionInfo implements Serializable, Cloneable {

  private static final long serialVersionUID = 4335254187209416779L;

  // contains carbon session param details
  private SessionParams sessionParams;
  private SessionParams threadParams;
  // use the below field to store the objects which need not be serialized
  private transient Map<String, Object> nonSerializableExtraInfo;

  public SessionParams getSessionParams() {
    return sessionParams;
  }

  public void setSessionParams(SessionParams sessionParams) {
    this.sessionParams = sessionParams;
  }

  public SessionParams getThreadParams() {
    return threadParams;
  }

  public void setThreadParams(SessionParams threadParams) {
    this.threadParams = threadParams;
  }

  public CarbonSessionInfo() {
    this.sessionParams = new SessionParams();
    this.threadParams = new SessionParams();
  }

  public CarbonSessionInfo clone() throws CloneNotSupportedException {
    super.clone();
    CarbonSessionInfo newObj = new CarbonSessionInfo();
    newObj.setSessionParams(sessionParams.clone());
    newObj.setThreadParams(threadParams.clone());
    for (Map.Entry<String, Object> entry : getNonSerializableExtraInfo().entrySet()) {
      newObj.getNonSerializableExtraInfo().put(entry.getKey(), entry.getValue());
    }
    return newObj;
  }

  public Map<String, Object> getNonSerializableExtraInfo() {
    // as the field is transient it can be null if serialized and de serialized again
    if (null == nonSerializableExtraInfo) {
      nonSerializableExtraInfo = new HashMap<>();
    }
    return nonSerializableExtraInfo;
  }

  public void setNonSerializableExtraInfo(Map<String, Object> nonSerializableExtraInfo) {
    this.nonSerializableExtraInfo = nonSerializableExtraInfo;
  }
}