| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 org.apache.catalina.connector; |
| |
| import java.io.IOException; |
| import java.io.PrintWriter; |
| |
| /** |
| * Coyote implementation of the servlet writer. |
| * |
| * @author Remy Maucherat |
| */ |
| public class CoyoteWriter |
| extends PrintWriter { |
| |
| |
| // -------------------------------------------------------------- Constants |
| |
| // No need for a do privileged block - every web app has permission to read |
| // this by default |
| private static final char[] LINE_SEP = |
| System.getProperty("line.separator").toCharArray(); |
| |
| |
| // ----------------------------------------------------- Instance Variables |
| |
| |
| protected OutputBuffer ob; |
| protected boolean error = false; |
| |
| |
| // ----------------------------------------------------------- Constructors |
| |
| |
| public CoyoteWriter(OutputBuffer ob) { |
| super(ob); |
| this.ob = ob; |
| } |
| |
| |
| // --------------------------------------------------------- Public Methods |
| |
| |
| /** |
| * Prevent cloning the facade. |
| */ |
| @Override |
| protected Object clone() |
| throws CloneNotSupportedException { |
| throw new CloneNotSupportedException(); |
| } |
| |
| |
| // -------------------------------------------------------- Package Methods |
| |
| |
| /** |
| * Clear facade. |
| */ |
| void clear() { |
| ob = null; |
| } |
| |
| |
| /** |
| * Recycle. |
| */ |
| void recycle() { |
| error = false; |
| } |
| |
| |
| // --------------------------------------------------------- Writer Methods |
| |
| |
| @Override |
| public void flush() { |
| |
| if (error) { |
| return; |
| } |
| |
| try { |
| ob.flush(); |
| } catch (IOException e) { |
| error = true; |
| } |
| |
| } |
| |
| |
| @Override |
| public void close() { |
| |
| // We don't close the PrintWriter - super() is not called, |
| // so the stream can be reused. We close ob. |
| try { |
| ob.close(); |
| } catch (IOException ex ) { |
| // Ignore |
| } |
| error = false; |
| |
| } |
| |
| |
| @Override |
| public boolean checkError() { |
| flush(); |
| return error; |
| } |
| |
| |
| @Override |
| public void write(int c) { |
| |
| if (error) { |
| return; |
| } |
| |
| try { |
| ob.write(c); |
| } catch (IOException e) { |
| error = true; |
| } |
| |
| } |
| |
| |
| @Override |
| public void write(char buf[], int off, int len) { |
| |
| if (error) { |
| return; |
| } |
| |
| try { |
| ob.write(buf, off, len); |
| } catch (IOException e) { |
| error = true; |
| } |
| |
| } |
| |
| |
| @Override |
| public void write(char buf[]) { |
| write(buf, 0, buf.length); |
| } |
| |
| |
| @Override |
| public void write(String s, int off, int len) { |
| |
| if (error) { |
| return; |
| } |
| |
| try { |
| ob.write(s, off, len); |
| } catch (IOException e) { |
| error = true; |
| } |
| |
| } |
| |
| |
| @Override |
| public void write(String s) { |
| write(s, 0, s.length()); |
| } |
| |
| |
| // ---------------------------------------------------- PrintWriter Methods |
| |
| |
| @Override |
| public void print(boolean b) { |
| if (b) { |
| write("true"); |
| } else { |
| write("false"); |
| } |
| } |
| |
| |
| @Override |
| public void print(char c) { |
| write(c); |
| } |
| |
| |
| @Override |
| public void print(int i) { |
| write(String.valueOf(i)); |
| } |
| |
| |
| @Override |
| public void print(long l) { |
| write(String.valueOf(l)); |
| } |
| |
| |
| @Override |
| public void print(float f) { |
| write(String.valueOf(f)); |
| } |
| |
| |
| @Override |
| public void print(double d) { |
| write(String.valueOf(d)); |
| } |
| |
| |
| @Override |
| public void print(char s[]) { |
| write(s); |
| } |
| |
| |
| @Override |
| public void print(String s) { |
| if (s == null) { |
| s = "null"; |
| } |
| write(s); |
| } |
| |
| |
| @Override |
| public void print(Object obj) { |
| write(String.valueOf(obj)); |
| } |
| |
| |
| @Override |
| public void println() { |
| write(LINE_SEP); |
| } |
| |
| |
| @Override |
| public void println(boolean b) { |
| print(b); |
| println(); |
| } |
| |
| |
| @Override |
| public void println(char c) { |
| print(c); |
| println(); |
| } |
| |
| |
| @Override |
| public void println(int i) { |
| print(i); |
| println(); |
| } |
| |
| |
| @Override |
| public void println(long l) { |
| print(l); |
| println(); |
| } |
| |
| |
| @Override |
| public void println(float f) { |
| print(f); |
| println(); |
| } |
| |
| |
| @Override |
| public void println(double d) { |
| print(d); |
| println(); |
| } |
| |
| |
| @Override |
| public void println(char c[]) { |
| print(c); |
| println(); |
| } |
| |
| |
| @Override |
| public void println(String s) { |
| print(s); |
| println(); |
| } |
| |
| |
| @Override |
| public void println(Object o) { |
| print(o); |
| println(); |
| } |
| |
| |
| } |