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.asterix.external.writer.printer;
  
  import java.io.IOException;
  import java.io.OutputStream;
  import java.util.Objects;
  
  import org.apache.hyracks.api.exceptions.HyracksDataException;
  import org.apache.hyracks.data.std.api.IValueReference;
  
  /**
   * The purpose of this is to catch and check an error that could be thrown by {@link #stream} when printing results.
   * {@link java.io.PrintStream} doesn't throw any exception on write. Hence, we can miss all errors thrown during
   * write operations.
   *
   * @see TextualExternalFilePrinter#print(IValueReference)
   */
  final class TextualOutputStreamDelegate extends OutputStream {
      private final OutputStream stream;
      private Exception exception;
  
      TextualOutputStreamDelegate(OutputStream stream) {
          this.stream = Objects.requireNonNull(stream);
      }
  
      @Override
      public void write(byte[] b, int off, int len) throws IOException {
          try {
              stream.write(b, off, len);
          } catch (Exception e) {
              this.exception = e;
              throw e;
          }
  
      }
  
      @Override
      public void write(byte[] b) throws IOException {
          try {
              stream.write(b);
          } catch (Exception e) {
              this.exception = e;
              throw e;
          }
      }
  
      @Override
      public void write(int b) throws IOException {
          try {
              stream.write(b);
          } catch (Exception e) {
              this.exception = e;
              throw e;
          }
      }
  
      @Override
      public synchronized void flush() throws IOException {
          try {
              stream.flush();
          } catch (Exception e) {
              this.exception = e;
              throw e;
          }
      }
  
      @Override
      public void close() throws IOException {
          try {
              stream.close();
          } catch (Exception e) {
              this.exception = e;
              throw e;
          }
      }
  
      void checkError() throws HyracksDataException {
          if (exception != null) {
              throw HyracksDataException.create(exception);
          }
      }
  }
  