| /* |
| * Copyright 2006 Google Inc. |
| * |
| * 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 java.io; |
| |
| /** |
| * See <a href="http://java.sun.com/j2se/1.5.0/docs/api/java/io/PrintStream.html">the official Java |
| * API doc</a> for details. |
| */ |
| public class PrintStream extends FilterOutputStream { |
| |
| /** Indicates whether or not this PrintStream has incurred an error. */ |
| private boolean ioError = false; |
| |
| public PrintStream(OutputStream out) { |
| super(out); |
| } |
| |
| public void print(boolean x) { |
| print(String.valueOf(x)); |
| } |
| |
| public void print(char x) { |
| print(String.valueOf(x)); |
| } |
| |
| public void print(char[] x) { |
| print(new String(x, 0, x.length)); |
| } |
| |
| public void print(double x) { |
| print(String.valueOf(x)); |
| } |
| |
| public void print(float x) { |
| print(String.valueOf(x)); |
| } |
| |
| public void print(int x) { |
| print(String.valueOf(x)); |
| } |
| |
| public void print(long x) { |
| print(String.valueOf(x)); |
| } |
| |
| public void print(Object x) { |
| print(String.valueOf(x)); |
| } |
| |
| public void print(String s) { |
| if (out == null) { |
| setError(); |
| return; |
| } |
| if (s == null) { |
| print("null"); |
| return; |
| } |
| |
| try { |
| write(s.getBytes()); |
| } catch (IOException e) { |
| setError(); |
| } |
| } |
| |
| public void println() { |
| newline(); |
| } |
| |
| public void println(boolean x) { |
| println(String.valueOf(x)); |
| } |
| |
| public void println(char x) { |
| println(String.valueOf(x)); |
| } |
| |
| public void println(char[] x) { |
| println(new String(x, 0, x.length)); |
| } |
| |
| public void println(double x) { |
| println(String.valueOf(x)); |
| } |
| |
| public void println(float x) { |
| println(String.valueOf(x)); |
| } |
| |
| public void println(int x) { |
| println(String.valueOf(x)); |
| } |
| |
| public void println(long x) { |
| println(String.valueOf(x)); |
| } |
| |
| public void println(Object x) { |
| println(String.valueOf(x)); |
| } |
| |
| public void println(String s) { |
| print(s); |
| newline(); |
| } |
| |
| @Override |
| public void flush() { |
| if (out != null) { |
| try { |
| out.flush(); |
| return; |
| } catch (IOException e) { |
| // Ignored, fall through to setError |
| } |
| } |
| setError(); |
| } |
| |
| @Override |
| public void close() { |
| flush(); |
| if (out != null) { |
| try { |
| out.close(); |
| } catch (IOException e) { |
| setError(); |
| } finally { |
| out = null; |
| } |
| } |
| } |
| |
| @Override |
| public void write(byte[] buffer, int offset, int length) { |
| // Force buffer null check first! |
| IOUtils.checkOffsetAndCount(buffer, offset, length); |
| if (out == null) { |
| setError(); |
| return; |
| } |
| try { |
| out.write(buffer, offset, length); |
| } catch (IOException e) { |
| setError(); |
| } |
| } |
| |
| @Override |
| public void write(int oneByte) { |
| if (out == null) { |
| setError(); |
| return; |
| } |
| try { |
| out.write(oneByte); |
| int b = oneByte & 0xFF; |
| // 0x0A is ASCII newline, 0x15 is EBCDIC newline. |
| boolean isNewline = b == 0x0A || b == 0x15; |
| if (isNewline) { |
| flush(); |
| } |
| } catch (IOException e) { |
| setError(); |
| } |
| } |
| |
| public boolean checkError() { |
| flush(); |
| return ioError; |
| } |
| |
| protected void setError() { |
| ioError = true; |
| } |
| |
| protected void clearError() { |
| ioError = false; |
| } |
| |
| private void newline() { |
| print('\n'); |
| } |
| } |