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.cassandra.sidecar.common.server.utils;
  
  import java.io.ByteArrayOutputStream;
  import java.io.IOException;
  import java.io.InputStream;
  import java.nio.charset.StandardCharsets;
  
  /**
   * Utilities for IO operations
   */
  public class IOUtils
  {
      /**
       * Returns the {@link StandardCharsets#UTF_8} String read from the provided {@code resource}.
       *
       * @param resource the resource to read
       * @return the {@link StandardCharsets#UTF_8} String read from the provided {@code resource}
       * @throws IOException when an error occurs during reading the resource or decoding the resource to {@code UTF-8}
       */
      public static String readFully(String resource) throws IOException
      {
          return readFully(IOUtils.class.getResourceAsStream(resource));
      }
  
      /**
       * Returns the {@link StandardCharsets#UTF_8} String read from the provided {@link InputStream inputStream}.
       *
       * @param inputStream the input stream to read from
       * @return the {@link StandardCharsets#UTF_8} String read from the provided {@link InputStream inputStream}
       * @throws IOException when an error occurs during reading the input stream or decoding the resource to
       *                     {@code UTF-8}
       */
      public static String readFully(InputStream inputStream) throws IOException
      {
          try (InputStream input = inputStream;
               ByteArrayOutputStream output = new ByteArrayOutputStream())
          {
              int length;
              byte[] buffer = new byte[32];
              while ((length = input.read(buffer)) >= 0)
              {
                  output.write(buffer, 0, length);
              }
              return output.toString(StandardCharsets.UTF_8.name());
          }
      }
  }
  