content: /*
   * The Alluxio Open Foundation licenses this work under the Apache License, version 2.0
   * (the "License"). You may not use this work except in compliance with the License, which is
   * available at www.apache.org/licenses/LICENSE-2.0
   *
   * This software is distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
   * either express or implied, as more fully set forth in the License.
   *
   * See the NOTICE file distributed with this work for information regarding copyright ownership.
   */
  
  package alluxio.util;
  
  import com.google.common.base.Throwables;
  import com.google.common.collect.Iterables;
  
  import java.io.InterruptedIOException;
  import java.io.PrintWriter;
  import java.io.StringWriter;
  
  /**
   * Utility methods for working with exceptions.
   */
  public final class ExceptionUtils {
    /**
     * @param t a throwable to check
     * @return whether the given throwable contains a type of interrupted exception in its causal
     *         chain (the causal chain includes the throwable itself)
     */
    public static boolean containsInterruptedException(Throwable t) {
      return !Iterables
          .isEmpty(Iterables.filter(Throwables.getCausalChain(t), x -> isInterrupted(x)));
    }
  
    /**
     * @param t a throwable to check
     * @return whether the throwable is a type of interrupted exception
     */
    public static boolean isInterrupted(Throwable t) {
      return t instanceof InterruptedException || t instanceof InterruptedIOException;
    }
  
    /**
     * Prints the stacktrace to a string.
     *
     * @param t the throwable
     * @return the formatted trace for the throwable
     * */
    public static String asPlainText(Throwable t) {
      StringWriter errors = new StringWriter();
      t.printStackTrace(new PrintWriter(errors));
      return errors.toString();
    }
  
    private ExceptionUtils() {} // Utils class
  }
  