code: /*
   * Copyright (c) 2017-2018 The Regents of the University of California
   *
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are
   * met:
   *
   * 1. Redistributions of source code must retain the above copyright
   * notice, this list of conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright
   * notice, this list of conditions and the following disclaimer in the
   * documentation and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
   * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  package edu.berkeley.cs.jqf.instrument.tracing;
  
  import java.io.*;
  
  /** @author Rohan Padhye */
  public class PrintLogger {
      private final PrintWriter writer;
  
      private PrintLogger(String name, OutputStream out) {
          this.writer = new PrintWriter(new BufferedWriter(new OutputStreamWriter(out)));
      }
  
      public PrintLogger(String name) {
          this(name, createOutputStream(name));
      }
  
      private static OutputStream createOutputStream(String name) {
          try {
              return new FileOutputStream(name + ".log");
          } catch (IOException e) {
              e.printStackTrace();
              return new OutputStream() {
                  @Override
                  public void write(int b) throws IOException {
                       // Do nothing
                  }
              };
          }
      }
  
      public void log(String info) {
          writer.println(info);
          writer.flush();
      }
  
      public PrintWriter getWriter() {
          return this.writer;
      }
  
      public void close() {
          writer.flush();
          writer.close();
      };
  }
  