/*
* 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.karaf.shell.console.jline;
import jline.Terminal;
import jline.UnsupportedTerminal;
import jline.AnsiWindowsTerminal;
import jline.NoInterruptUnixTerminal;
public class TerminalFactory {
private Terminal term;
public synchronized Terminal getTerminal() throws Exception {
if (term == null) {
init();
}
return term;
}
public void init() throws Exception {
if ("jline.UnsupportedTerminal".equals(System.getProperty("jline.terminal"))) {
term = new UnsupportedTerminal();
return;
}
boolean windows = System.getProperty("os.name").toLowerCase().contains("windows");
try {
if (windows) {
AnsiWindowsTerminal t = new AnsiWindowsTerminal();
t.setDirectConsole(true);
t.initializeTerminal();
term = t;
} else {
NoInterruptUnixTerminal t = new NoInterruptUnixTerminal();
t.initializeTerminal();
term = t;
}
} catch (Throwable e) {
System.out.println("Using an unsupported terminal: " + e.toString());
term = new UnsupportedTerminal();
}
}
public synchronized void destroy() throws Exception {
if (term != null) {
term.restoreTerminal();
term = null;
}
}
}