InputStreamCommandInput.java

package org.cyclopsgroup.jmxterm.io;

import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.LineNumberReader;
import org.apache.commons.lang3.Validate;

/**
 * Implementation of {@link CommandInput} with an input stream
 *
 * @author <a href="mailto:jiaqi.guo@gmail.com">Jiaqi Guo</a>
 */
public class InputStreamCommandInput extends CommandInput {
  private final LineNumberReader reader;

  /**
   * @param in Given input stream
   */
  public InputStreamCommandInput(InputStream in) {
    Validate.notNull(in, "Input stream can't be NULL");
    reader = new LineNumberReader(new InputStreamReader(in));
  }

  @Override
  public String readLine() throws IOException {
    return reader.readLine();
  }

  @Override
  public String readMaskedString(String prompt) throws IOException {
    throw new UnsupportedOperationException("Reading password from stream is not supported");
  }

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