/*
* JBoss, Home of Professional Open Source.
* Copyright 2015, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* 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.jboss.as.cli.embedded;
import org.jboss.logmanager.LogContext;
import org.jboss.logmanager.LogContextSelector;
import org.jboss.stdio.StdioContext;
import org.jboss.stdio.StdioContextSelector;
/**
* {@link org.jboss.stdio.StdioContextSelector} and {@link org.jboss.logmanager.LogContextSelector}
* that uses an {@link java.lang.InheritableThreadLocal} as a source of the contexts.
*
* @author Brian Stansberry (c) 2015 Red Hat Inc.
*/
class ThreadLocalContextSelector implements LogContextSelector, StdioContextSelector {
private final InheritableThreadLocal<Contexts> threadLocal = new InheritableThreadLocal<>();
private final Contexts localContexts;
private final Contexts defaultContexts;
ThreadLocalContextSelector(Contexts local, Contexts defaults) {
assert local != null;
assert local.getLogContext() != null; // local.stdioContext can be null
assert defaults != null;
assert defaults.getStdioContext() != null;
assert defaults.getLogContext() != null;
this.localContexts = local;
this.defaultContexts = defaults;
}
Contexts pushLocal() {
Contexts result = threadLocal.get();
threadLocal.set(localContexts);
return result;
}
void restore(Contexts toRestore) {
threadLocal.set(toRestore);
}
@Override
public StdioContext getStdioContext() {
Contexts threadContext = threadLocal.get();
StdioContext local = threadContext != null ? threadContext.getStdioContext() : null;
return local == null ? defaultContexts.getStdioContext() : local;
}
@Override
public LogContext getLogContext() {
Contexts threadContext = threadLocal.get();
LogContext local = threadContext != null ? threadContext.getLogContext() : null;
return local == null ? defaultContexts.getLogContext() : local;
}
}