content: /*
   * 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.arrow.dataset.jni;
  
  import java.io.PrintWriter;
  import java.io.StringWriter;
  
  /** For native code to invoke to convert a java/lang/Throwable to jstring. */
  class JniExceptionDescriber {
    private JniExceptionDescriber() {}
  
    /**
     * Convert a java/lang/Throwable to jstring. See codes in arrow::dataset::jni::CheckException for
     * more details.
     *
     * @param throwable the exception instance.
     * @return a String including error message and stack trace of the exception.
     */
    static String describe(Throwable throwable) {
      StringWriter sw = new StringWriter();
      PrintWriter pw = new PrintWriter(sw, true);
      throwable.printStackTrace(pw);
      return sw.getBuffer().toString();
    }
  }
  