org.crsh.telnet.term.TermLifeCycle Maven / Gradle / Ivy
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/*
* Copyright (C) 2012 eXo Platform SAS.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.crsh.telnet.term;
import org.crsh.plugin.PluginContext;
import org.crsh.telnet.term.spi.TermIOHandler;
import java.util.Iterator;
public abstract class TermLifeCycle {
/** . */
private final PluginContext context;
protected TermLifeCycle(PluginContext context) {
if (context == null) {
throw new NullPointerException();
}
//
this.context = context;
}
public final void init() {
try {
doInit();
} catch (Exception e) {
e.printStackTrace();
}
}
public final void destroy() {
doDestroy();
}
public final TermIOHandler getHandler() {
Iterator handlers = context.getPlugins(TermIOHandler.class).iterator();
if (handlers.hasNext()) {
return handlers.next();
} else {
return null;
}
}
public final PluginContext getContext() {
return context;
}
protected abstract void doInit() throws Exception;
protected abstract void doDestroy();
}