/*
* Copyright 2012 Red Hat, Inc. and/or its affiliates.
*
* Licensed under the Eclipse Public License version 1.0, available at
* http://www.eclipse.org/legal/epl-v10.html
*/
package org.jboss.aesh.terminal;
import org.fusesource.jansi.AnsiOutputStream;
import org.fusesource.jansi.WindowsAnsiOutputStream;
import org.fusesource.jansi.internal.WindowsSupport;
import org.jboss.aesh.console.settings.Settings;
import org.jboss.aesh.util.ANSI;
import org.jboss.aesh.util.LoggerUtil;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.io.Writer;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
*
* @author Ståle W. Pedersen <stale.pedersen@jboss.org>
*/
public class WindowsTerminal extends AbstractTerminal {
private Writer stdOut;
private Writer stdErr;
private InputStream input;
private int width;
private int height;
private TerminalSize size;
private long ttyPropsLastFetched;
private static long TIMEOUT_PERIOD = 2000;
private final Object lock = new Object();
private static final Logger logger = LoggerUtil.getLogger(POSIXTerminal.class.getName());
public WindowsTerminal() {
super(logger);
}
@Override
public void init(InputStream inputStream, OutputStream stdOut, OutputStream stdErr) {
//setting up reader
try {
//AnsiConsole.systemInstall();
this.stdOut = new PrintWriter( new OutputStreamWriter(new WindowsAnsiOutputStream(stdOut)));
this.stdErr = new PrintWriter( new OutputStreamWriter(new WindowsAnsiOutputStream(stdErr)));
}
catch (Exception ioe) {
this.stdOut = new PrintWriter( new OutputStreamWriter(new AnsiOutputStream(stdOut)));
this.stdErr = new PrintWriter( new OutputStreamWriter(new AnsiOutputStream(stdErr)));
}
this.input = inputStream;
}
@Override
public int[] read(boolean readAhead) throws IOException {
if(Settings.getInstance().isAnsiConsole())
return new int[] {WindowsSupport.readByte()};
else {
int input = this.input.read();
int available = this.input.available();
if(available > 1 && readAhead) {
int[] in = new int[available];
in[0] = input;
for(int c=1; c < available; c++ )
in[c] = this.input.read();
return in;
}
else
return new int[] {input};
}
}
@Override
public void writeToStdOut(String out) throws IOException {
if(out != null && out.length() > 0) {
synchronized (lock) {
stdOut.write(out);
stdOut.flush();
}
}
}
@Override
public void writeToStdOut(char[] out) throws IOException {
if(out != null && out.length > 0) {
synchronized (lock) {
stdOut.write(out);
stdOut.flush();
}
}
}
@Override
public void writeToStdOut(char out) throws IOException {
synchronized (lock) {
stdOut.write(out);
stdOut.flush();
}
}
@Override
public void writeToStdErr(String err) throws IOException {
if(err != null && err.length() > 0) {
synchronized (lock) {
stdOut.write(err);
stdOut.flush();
}
}
}
@Override
public void writeToStdErr(char[] err) throws IOException {
if(err != null && err.length > 0) {
synchronized (lock) {
stdOut.write(err);
stdOut.flush();
}
}
}
@Override
public void writeToStdErr(char err) throws IOException {
synchronized (lock) {
stdOut.write(err);
stdOut.flush();
}
}
private int getHeight() {
int height;
height = WindowsSupport.getWindowsTerminalHeight();
ttyPropsLastFetched = System.currentTimeMillis();
if(height < 1) {
if(Settings.getInstance().isLogging())
logger.log(Level.SEVERE, "Fetched terminal height is "+height+", setting it to 24");
height = 24;
}
return height;
}
private int getWidth() {
int width;
width = WindowsSupport.getWindowsTerminalWidth();
ttyPropsLastFetched = System.currentTimeMillis();
if(width < 1) {
if(Settings.getInstance().isLogging())
logger.log(Level.SEVERE, "Fetched terminal width is "+width+", setting it to 80");
width = 80;
}
return width;
}
@Override
public TerminalSize getSize() {
if(propertiesTimedOut()) {
if(size == null) {
size = new TerminalSize(getHeight(), getWidth());
}
else {
size.setHeight(getHeight());
size.setWidth(getWidth());
}
}
return size;
}
@Override
public boolean isEchoEnabled() {
return false;
}
@Override
public void reset() throws IOException {
}
private boolean propertiesTimedOut() {
return (System.currentTimeMillis() -ttyPropsLastFetched) > TIMEOUT_PERIOD;
}
}