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.causeway.commons.internal.resources;
  
  import java.io.ByteArrayInputStream;
  import java.io.ByteArrayOutputStream;
  import java.io.InputStream;
  import java.io.ObjectInputStream;
  import java.io.ObjectOutputStream;
  import java.io.Serializable;
  
  import org.apache.causeway.commons.internal.base._Casts;
  import org.apache.causeway.commons.internal.exceptions._Exceptions;
  
  import org.jspecify.annotations.NonNull;
  import lombok.SneakyThrows;
  
  /**
   * <h1>- internal use only -</h1>
   * <p>
   * Utilities for marshalling Serializable.
   * </p>
   * <p>
   * <b>WARNING</b>: Do <b>NOT</b> use any of the classes provided by this package! <br/>
   * These may be changed or removed without notice!
   * </p>
   * @since 2.0
   */
  public class _Serializables {
  
      @SneakyThrows
      public static byte[] write(
              final @NonNull Serializable object) {
          var bos = new ByteArrayOutputStream(16*4096); // 16k initial buffer size
          try(var oos = new ObjectOutputStream(bos)) {
              oos.writeObject(object);
              oos.flush();
          }
          return bos.toByteArray();
  
      }
  
      @SneakyThrows
      public static <T extends Serializable> T read(
              final @NonNull Class<T> requiredClass,
              final @NonNull InputStream content) {
          try(var ois = new ObjectInputStream(content)){
              var pojo = ois.readObject();
              if(!(requiredClass.isAssignableFrom(pojo.getClass()))) {
                  throw _Exceptions.unrecoverable(
                          "de-serializion of input stream did not yield an object of required type %s",
                          requiredClass.getName());
              }
              return _Casts.uncheckedCast(pojo);
          }
      }
  
      @SneakyThrows
      public static <T extends Serializable> T read(
              final @NonNull Class<T> requiredClass,
              final @NonNull byte[] input) {
          try(var bis = new ByteArrayInputStream(input)) {
              return read(requiredClass, bis);
          }
      }
  
  }
  