/*
 * Copyright DataStax, Inc.
 *
 * 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.datastax.oss.driver.api.core.connection;

import com.datastax.oss.driver.api.core.AllNodesFailedException;
import com.datastax.oss.driver.api.core.DriverException;
import edu.umd.cs.findbugs.annotations.NonNull;
import edu.umd.cs.findbugs.annotations.Nullable;

Thrown when the connection on which a request was executing is closed due to an unrelated event.
For example, this can happen if the node is unresponsive and a heartbeat query failed, or if
the node was forced down.
The driver will always retry these requests on the next node transparently. Therefore, the only way to observe this exception is as part of an AllNodesFailedException. /**
 * Thrown when the connection on which a request was executing is closed due to an unrelated event.
 *
 * <p>For example, this can happen if the node is unresponsive and a heartbeat query failed, or if
 * the node was forced down.
 *
 * <p>The driver will always retry these requests on the next node transparently. Therefore, the
 * only way to observe this exception is as part of an {@link AllNodesFailedException}.
 */
public class ClosedConnectionException extends DriverException {

  public ClosedConnectionException(@NonNull String message) {
    this(message, null, false);
  }

  public ClosedConnectionException(@NonNull String message, @Nullable Throwable cause) {
    this(message, cause, false);
  }

  private ClosedConnectionException(
      @NonNull String message, @Nullable Throwable cause, boolean writableStackTrace) {
    super(message, null, cause, writableStackTrace);
  }

  @Override
  @NonNull
  public DriverException copy() {
    return new ClosedConnectionException(getMessage(), getCause(), true);
  }
}