protected static int run(String message, String[] commandArray, File outputFile) {
PrintStream out = System.out;
PrintStream err = System.err;
PrintStream fileStream = null;
try {
outputFile.getParentFile().mkdirs();
fileStream = new PrintStream(new FileOutputStream(outputFile));
System.setErr(fileStream);
System.setOut(fileStream);
return run(message, commandArray);
} catch (FileNotFoundException e) {
return -1;
} finally {
System.setOut(out);
System.setErr(err);
if (fileStream != null) fileStream.close();
}
}
/*
* Accepts a new request from the HTTP server and creates
* a conventional execution environment for the request.
* If the application was invoked as a FastCGI server,
* the first call to FCGIaccept indicates that the application
* has completed its initialization and is ready to accept
* a request. Subsequent calls to FCGI_accept indicate that
* the application has completed its processing of the
* current request and is ready to accept a new request.
* If the application was invoked as a CGI program, the first
* call to FCGIaccept is essentially a no-op and the second
* call returns EOF (-1) as does an error. Application should exit.
*
* If the application was invoked as a FastCGI server,
* and this is not the first call to this procedure,
* FCGIaccept first flushes any buffered output to the HTTP server.
*
* On every call, FCGIaccept accepts the new request and
* reads the FCGI_PARAMS stream into System.props. It also creates
* streams that understand FastCGI protocol and take input from
* the HTTP server send output and error output to the HTTP server,
* and assigns these new streams to System.in, System.out and
* System.err respectively.
*
* For now, we will just return an int to the caller, which is why
* this method catches, but doen't throw Exceptions.
*
*/
public int FCGIaccept() {
int acceptResult = 0;
/*
* If first call, mark it and if fcgi save original system properties,
* If not first call, and we are cgi, we should be gone.
*/
if (!acceptCalled) {
isFCGI = System.getenv("FCGI_PORT") != null;
acceptCalled = true;
if (isFCGI) {
/*
* save original system properties (nonrequest)
* and get a server socket
*/
startupProps = new Properties(System.getProperties());
String str = new String(System.getenv("FCGI_PORT"));
if (str.length() <= 0) {
return -1;
}
int portNum = Integer.parseInt(str);
try {
srvSocket = new ServerSocket(portNum);
} catch (IOException e) {
if (request != null) {
request.socket = null;
}
srvSocket = null;
request = null;
return -1;
}
}
} else {
if (!isFCGI) {
return -1;
}
}
/*
* If we are cgi, just leave everything as is, otherwise set up env
*/
if (isFCGI) {
try {
acceptResult = FCGIAccept();
} catch (IOException e) {
return -1;
}
if (acceptResult < 0) {
return -1;
}
/*
* redirect stdin, stdout and stderr to fcgi socket
*/
System.setIn(new BufferedInputStream(request.inStream, 8192));
System.setOut(new PrintStream(new BufferedOutputStream(request.outStream, 8192)));
System.setErr(new PrintStream(new BufferedOutputStream(request.errStream, 512)));
System.setProperties(request.params);
}
return 0;
}
public static void main() {
// Main
frame = new JFrame("Java Playground");
frame.setSize(640, 480);
// Make sure the divider is properly resized
frame.addComponentListener(
new ComponentAdapter() {
public void componentResized(ComponentEvent c) {
splitter.setDividerLocation(.8);
}
});
// Make sure the JVM is reset on close
frame.addWindowListener(
new WindowAdapter() {
public void windowClosed(WindowEvent w) {
new FrameAction().kill();
}
});
// Setting up the keybinding
// Ctrl+k or Cmd+k -> compile
bind(KeyEvent.VK_K);
// Ctrl+e or Cmd+e -> console
bind(KeyEvent.VK_E);
// Save, New file, Open file, Print.
// Currently UNUSED until I figure out how normal java files and playground files will
// interface.
bind(KeyEvent.VK_S);
bind(KeyEvent.VK_N);
bind(KeyEvent.VK_O);
bind(KeyEvent.VK_P);
// Binds the keys to the action defined in the FrameAction class.
frame.getRootPane().getActionMap().put("console", new FrameAction());
// The main panel for typing code in.
text = new JTextPane();
textScroll = new JScrollPane(text);
textScroll.setBorder(null);
textScroll.setPreferredSize(new Dimension(640, 480));
// Document with syntax highlighting. Currently unfinished.
doc = text.getStyledDocument();
doc.addDocumentListener(
new DocumentListener() {
public void changedUpdate(DocumentEvent d) {}
public void insertUpdate(DocumentEvent d) {}
public void removeUpdate(DocumentEvent d) {}
});
((AbstractDocument) doc).setDocumentFilter(new NewLineFilter());
// The output log; a combination compiler warning/error/runtime error/output log.
outputText = new JTextPane();
outputScroll = new JScrollPane(outputText);
outputScroll.setBorder(null);
// "Constant" for the error font
error = new SimpleAttributeSet();
error.addAttribute(StyleConstants.CharacterConstants.Italic, Boolean.TRUE);
error.addAttribute(StyleConstants.Foreground, Color.RED);
// "Constant" for the warning message font
warning = new SimpleAttributeSet();
warning.addAttribute(StyleConstants.CharacterConstants.Italic, Boolean.TRUE);
warning.addAttribute(StyleConstants.Foreground, Color.PINK);
// "Constant" for the debugger error font
progErr = new SimpleAttributeSet();
progErr.addAttribute(StyleConstants.Foreground, Color.BLUE);
// Print streams to redirect System.out and System.err.
out = new TextOutputStream(outputText, null);
err = new TextOutputStream(outputText, error);
System.setOut(new PrintStream(out));
System.setErr(new PrintStream(err));
// Sets up the output log
outputText.setEditable(false);
outputScroll.setVisible(true);
// File input/output setup
chooser = new JFileChooser();
// Setting up miscellaneous stuff
compiler = ToolProvider.getSystemJavaCompiler();
JVMrunning = false;
redirectErr = null;
redirectOut = null;
redirectIn = null;
// Sets up the splitter pane and opens the program up
splitter = new JSplitPane(JSplitPane.VERTICAL_SPLIT, textScroll, outputScroll);
consoleDisplayed = false;
splitter.remove(outputScroll); // Initially hides terminal until it is needed
splitter.setOneTouchExpandable(true);
frame.add(splitter);
frame.setVisible(true);
// Sets the divider to the proper one, for debugging
// splitter.setDividerLocation(.8);
}
