br.com.objectos.io.ReadString Maven / Gradle / Ivy

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/*
 * Copyright (C) 2011-2021 Objectos Software LTDA.
 *
 * Licensed 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 br.com.objectos.io;

import static br.com.objectos.lang.Lang.checkNotNull;

import java.io.IOException;
import java.io.InputStream;
import java.nio.charset.Charset;

enum ReadString
    implements
    InputStreamOperation1,
    InputStreamOperation2 {

  INSTANCE;

  @Override
  public final String read(InputStream inputStream, Charset charset) throws IOException {
    return read(inputStream, charset, Io.createBuffer());
  }

  @Override
  public final String read(
      InputStream inputStream, Charset charset, byte[] buffer) throws IOException {
    checkNotNull(inputStream, "inputStream == null");
    checkNotNull(charset, "charset == null");
    Io.checkBuffer(buffer);

    byte[] bytes;
    bytes = ReadByteArray.INSTANCE.read(inputStream, buffer);

    return new String(bytes, charset);
  }

}