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The source code
/*
* Sun Public License Notice
*
* The contents of this file are subject to the Sun Public License
* Version 1.0 (the "License"). You may not use this file except in
* compliance with the License. A copy of the License is available at
* http://www.sun.com/
*
* The Original Code is NetBeans. The Initial Developer of the Original
* Code is Sun Microsystems, Inc. Portions Copyright 1997-2000 Sun
* Microsystems, Inc. All Rights Reserved.
*/
package org.netbeans.core.execution;
import java.io.IOException;
import java.io.PrintStream;
import java.io.OutputStream;
final class WriterPrintStream extends PrintStream {
private boolean stdOut;
/**
* Create a new print stream. This stream will not flush automatically.
*
* @param out The output stream to which values and objects will be
* printed
*
*/
public WriterPrintStream(OutputStream out, boolean stdOut) {
super(out, true);
this.stdOut = stdOut;
}
/** Empty */
public void close() {
}
public void flush() {
try {
if (stdOut) {
ExecutionEngine.getTaskIOs().getOut().flush();
} else {
ExecutionEngine.getTaskIOs().getErr().flush();
}
} catch (IOException e) {
setError();
}
}
private void write(String s) {
try {
if (stdOut) {
ExecutionEngine.getTaskIOs().getOut().write(s);
} else {
ExecutionEngine.getTaskIOs().getErr().write(s);
}
} catch (IOException e) {
setError();
}
}
/**
* Print a boolean value. The string produced by {@link
* java.lang.String#valueOf(boolean)} is translated into bytes
* according to the platform's default character encoding, and these bytes
* are written in exactly the manner of the
* {@link #write(int)} method.
*
* @param b The boolean to be printed
*/
public void print(boolean b) {
write(b ? "true" : "false"); // NOI18N
}
/**
* Print a character. The character is translated into one or more bytes
* according to the platform's default character encoding, and these bytes
* are written in exactly the manner of the
* {@link #write(int)} method.
*
* @param c The char to be printed
*/
public void print(char c) {
try {
if (stdOut) {
ExecutionEngine.getTaskIOs().getOut().write(c);
} else {
ExecutionEngine.getTaskIOs().getErr().write(c);
}
} catch (IOException e) {
setError();
}
}
/**
* Print an integer. The string produced by {@link
* java.lang.String#valueOf(int)} is translated into bytes
* according to the platform's default character encoding, and these bytes
* are written in exactly the manner of the
* {@link #write(int)} method.
*
* @param i The int to be printed
* @see java.lang.Integer#toString(int)
*/
public void print(int i) {
write(String.valueOf(i));
}
/**
* Print a long integer. The string produced by {@link
* java.lang.String#valueOf(long)} is translated into bytes
* according to the platform's default character encoding, and these bytes
* are written in exactly the manner of the
* {@link #write(int)} method.
*
* @param l The long to be printed
* @see java.lang.Long#toString(long)
*/
public void print(long l) {
write(String.valueOf(l));
}
/**
* Print a floating-point number. The string produced by {@link
* java.lang.String#valueOf(float)} is translated into bytes
* according to the platform's default character encoding, and these bytes
* are written in exactly the manner of the
* {@link #write(int)} method.
*
* @param f The float to be printed
* @see java.lang.Float#toString(float)
*/
public void print(float f) {
write(String.valueOf(f));
}
/**
* Print a double-precision floating-point number. The string produced by
* {@link java.lang.String#valueOf(double)} is translated into
* bytes according to the platform's default character encoding, and these
* bytes are written in exactly the manner of the {@link
* #write(int)} method.
*
* @param d The double to be printed
* @see java.lang.Double#toString(double)
*/
public void print(double d) {
write(String.valueOf(d));
}
/**
* Print an array of characters. The characters are converted into bytes
* according to the platform's default character encoding, and these bytes
* are written in exactly the manner of the
* {@link #write(int)} method.
*
* @param s The array of chars to be printed
*
* @throws NullPointerException If s is null
*/
public void print(char s[]) {
try {
if (stdOut) {
ExecutionEngine.getTaskIOs().getOut().write(s);
} else {
ExecutionEngine.getTaskIOs().getErr().write(s);
}
} catch (IOException e) {
setError();
}
}
/**
* Print a string. If the argument is null then the string
* "null" is printed. Otherwise, the string's characters are
* converted into bytes according to the platform's default character
* encoding, and these bytes are written in exactly the manner of the
* {@link #write(int)} method.
*
* @param s The String to be printed
*/
public void print(String s) {
if (s == null) {
s = "null"; // NOI18N
}
write(s);
}
/**
* Print an object. The string produced by the {@link
* java.lang.String#valueOf(Object)} method is translated into bytes
* according to the platform's default character encoding, and these bytes
* are written in exactly the manner of the
* {@link #write(int)} method.
*
* @param obj The Object to be printed
* @see java.lang.Object#toString()
*/
public void print(Object obj) {
write(String.valueOf(obj));
}
/* Methods that do terminate lines */
/**
* Terminate the current line by writing the line separator string. The
* line separator string is defined by the system property
* line.separator , and is not necessarily a single newline
* character ('\n' ).
*/
public void println() {
print(getNewLine());
}
/**
* Print a boolean and then terminate the line. This method behaves as
* though it invokes {@link #print(boolean)} and then
* {@link #println()} .
*
* @param x The boolean to be printed
*/
public void println(boolean x) {
String out = (x ? "true" : "false"); // NOI18N
write(out.concat(getNewLine()));
}
/**
* Print a character and then terminate the line. This method behaves as
* though it invokes {@link #print(char)} and then
* {@link #println()} .
*
* @param x The char to be printed.
*/
public void println(char x) {
String nline = getNewLine();
int nlinelen = nline.length();
char[] tmp = new char[nlinelen + 1];
tmp[0] = x;
for (int i = 0; i < nlinelen; i++) {
tmp[i + 1] = nline.charAt(i);
}
try {
if (stdOut) {
ExecutionEngine.getTaskIOs().getOut().write(tmp);
} else {
ExecutionEngine.getTaskIOs().getErr().write(tmp);
}
} catch (IOException e) {
setError();
}
}
/**
* Print an integer and then terminate the line. This method behaves as
* though it invokes {@link #print(int)} and then
* {@link #println()} .
*
* @param x The int to be printed.
*/
public void println(int x) {
write(String.valueOf(x).concat(getNewLine()));
}
/**
* Print a long and then terminate the line. This method behaves as
* though it invokes {@link #print(long)} and then
* {@link #println()} .
*
* @param x a The long to be printed.
*/
public void println(long x) {
write(String.valueOf(x).concat(getNewLine()));
}
/**
* Print a float and then terminate the line. This method behaves as
* though it invokes {@link #print(float)} and then
* {@link #println()} .
*
* @param x The float to be printed.
*/
public void println(float x) {
write(String.valueOf(x).concat(getNewLine()));
}
/**
* Print a double and then terminate the line. This method behaves as
* though it invokes {@link #print(double)} and then
* {@link #println()} .
*
* @param x The double to be printed.
*/
public void println(double x) {
write(String.valueOf(x).concat(getNewLine()));
}
/**
* Print an array of characters and then terminate the line. This method
* behaves as though it invokes {@link #print(char[])} and
* then {@link #println()} .
*
* @param x an array of chars to print.
*/
public void println(char x[]) {
String nline = getNewLine();
int nlinelen = nline.length();
char[] tmp = new char[x.length + nlinelen];
System.arraycopy(x, 0, tmp, 0, x.length);
for (int i = 0; i < nlinelen; i++) {
tmp[x.length + i] = nline.charAt(i);
}
x = null;
try {
if (stdOut) {
ExecutionEngine.getTaskIOs().getOut().write(tmp);
} else {
ExecutionEngine.getTaskIOs().getErr().write(tmp);
}
} catch (IOException e) {
setError();
}
}
/**
* Print a String and then terminate the line. This method behaves as
* though it invokes {@link #print(String)} and then
* {@link #println()} .
*
* @param x The String to be printed.
*/
public void println(String x) {
if (x == null) {
x = "null"; // NOI18N
}
print(x.concat(getNewLine()));
}
/**
* Print an Object and then terminate the line. This method behaves as
* though it invokes {@link #print(Object)} and then
* {@link #println()} .
*
* @param x The Object to be printed.
*/
public void println(Object x) {
if (x == null) {
print("null".concat(getNewLine())); // NOI18N
} else {
String s = x.toString();
if(s == null) {
print("".concat(getNewLine())); // NOI18N
} else {
print(s.concat(getNewLine()));
}
}
}
private static String newLine;
private static String getNewLine() {
if (newLine == null) {
newLine = System.getProperty("line.separator");
}
return newLine;
}
}
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