moduledebugconsoleimpl.java

一个非常好的ssh客户端实现

/******************************************************************************
 *
 * Copyright (c) 1999-2003 AppGate Network Security AB. All Rights Reserved.
 * 
 * This file contains Original Code and/or Modifications of Original Code as
 * defined in and that are subject to the MindTerm Public Source License,
 * Version 2.0, (the 'License'). You may not use this file except in compliance
 * with the License.
 * 
 * You should have received a copy of the MindTerm Public Source License
 * along with this software; see the file LICENSE.  If not, write to
 * AppGate Network Security AB, Otterhallegatan 2, SE-41118 Goteborg, SWEDEN
 *
 *****************************************************************************/

package com.mindbright.application;

import java.io.OutputStream;
import java.io.PrintStream;
import java.io.IOException;

import java.awt.Frame;

import com.mindbright.terminal.Terminal;
import com.mindbright.terminal.TerminalWin;
import com.mindbright.terminal.TerminalFrameTitle;

public class ModuleDebugConsoleImpl extends ModuleBaseTerminal {

    private TerminalWin terminal;
    private PrintStream outOrig;
    private PrintStream errOrig;

    private volatile boolean isRunning;

    final class DebugOutStream extends OutputStream {
	public void write(int b) throws IOException {
	    terminal.write((char)b);
	}
	public void write(byte b[], int off, int len) throws IOException {
	    terminal.write(b, off, len);
	}
    }

    protected void runTerminal(MindTermApp mindterm,
			       TerminalWin terminal, Frame frame,
			       TerminalFrameTitle frameTitle) {
	isRunning     = true;
	this.terminal = terminal;
	outOrig       = System.out;
	errOrig       = System.err;

	terminal.setOption(Terminal.OPT_AUTO_LF, true);

	PrintStream debugOut = new PrintStream(new DebugOutStream());
	try {
	    System.setOut(debugOut);
	    System.setErr(debugOut);
	} catch (Throwable t) {
	    terminal.write("\n\rError, couldn't redirect STDIO: " +
			   t.getMessage());
	}
	synchronized(this) {
	    try {
		this.wait();
	    } catch (InterruptedException e) {
	    }
	}
    }

    protected boolean closeOnDisconnect() {
	return false;
    }

    protected String getTitle() {
	return mindterm.getAppName() + " - " + "Debug Console";
    }

    protected void doClose() {
	System.setOut(outOrig);
	System.setErr(outOrig);
	this.terminal = null;
	synchronized(this) {
	    this.notifyAll();
	}
    }

    public boolean isAvailable(MindTermApp mindterm) {
	return true;
    }

    protected ModuleBaseTerminal newInstance() {
	return this;
    }

}