/*-
 * -\-\-
 * Spotify Styx Common
 * --
 * Copyright (C) 2018 Spotify AB
 * --
 * 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.spotify.styx.util;

public final class ExceptionUtil {
  private ExceptionUtil() {
    throw new UnsupportedOperationException();
  }

  public static <T> T findCause(Throwable throwable, Class<T> needle) {
    Throwable target = throwable;
    while (target != null) {
      if (needle.isInstance(target)) {
        return needle.cast(target);
      }
      target = target.getCause();
    }
    return null;
  }
}
