/*
    * 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.commons.imaging.common;
  
  import java.io.IOException;
  import java.io.PrintWriter;
  import java.io.StringWriter;
  import java.nio.ByteOrder;
  import java.util.logging.Level;
  import java.util.logging.Logger;
  
  public class BinaryFileParser {
  
      private static final Logger LOGGER = Logger.getLogger(BinaryFileParser.class.getName());
  
      /**
       * The default {@link ByteOrder} for parsers is {@link ByteOrder#BIG_ENDIAN}.
       */
      private ByteOrder byteOrder = ByteOrder.BIG_ENDIAN;
  
      /**
       * Constructs a BinaryFileParser with the default, big-endian, byte order.
       */
      public BinaryFileParser() {
          // as above
      }
  
      public BinaryFileParser(final ByteOrder byteOrder) {
          this.byteOrder = byteOrder;
      }
  
      protected final void debugNumber(final PrintWriter pw, final String msg, final int data, final int bytes) {
          pw.print(msg + ": " + data + " (");
          int byteData = data;
          for (int i = 0; i < bytes; i++) {
              if (i > 0) {
                  pw.print(",");
              }
              final int singleByte = 0xff & byteData;
              pw.print((char) singleByte + " [" + singleByte + "]");
              byteData >>= 8;
          }
          pw.println(") [0x" + Integer.toHexString(data) + ", " + Integer.toBinaryString(data) + "]");
          pw.flush();
      }
  
      protected final void debugNumber(final String msg, final int data, final int bytes) {
          try (StringWriter sw = new StringWriter();
                  PrintWriter pw = new PrintWriter(sw)) {
              debugNumber(pw, msg, data, bytes);
              pw.flush();
              sw.flush();
              LOGGER.fine(sw.toString());
          } catch (final IOException e) {
              LOGGER.log(Level.SEVERE, e.getMessage(), e);
          }
      }
  
      public ByteOrder getByteOrder() {
          return byteOrder;
      }
  
      protected void setByteOrder(final ByteOrder byteOrder) {
          this.byteOrder = byteOrder;
      }
  }