br.com.objectos.http.SocketReader Maven / Gradle / Ivy

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/*
 * Copyright 2016 Objectos, Fábrica de 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.http;

import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.channels.ReadableByteChannel;

import br.com.objectos.core.io.CharIterator;

/**
 * @author [email protected] (Marcio Endo)
 */
class SocketReader implements AutoCloseable {

  private final CharIterator iterator;

  public SocketReader(CharIterator iterator) {
    this.iterator = iterator;
  }

  public static SocketReader of(ReadableByteChannel channel, ByteBuffer buffer) {
    buffer.clear();
    CharIterator iterator = CharIterator.ofChannel(channel, buffer, 8192);
    return new SocketReader(iterator);
  }

  @Override
  public void close() throws IOException {
    iterator.close();
  }

  public String readString() {
    StringBuilder builder = new StringBuilder();

    while (iterator.hasNext()) {
      char c = iterator.next();
      if (Character.isWhitespace(c)) {
        break;
      }
      builder.append(c);
    }

    return builder.toString();
  }

}