Mercurial Hosting > nabble
diff src/fschmidt/util/java/ProxyIntoThread.java @ 68:00520880ad02
add fschmidt source
author | Franklin Schmidt <fschmidt@gmail.com> |
---|---|
date | Sun, 05 Oct 2025 17:24:15 -0600 |
parents | |
children |
line wrap: on
line diff
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/fschmidt/util/java/ProxyIntoThread.java Sun Oct 05 17:24:15 2025 -0600 @@ -0,0 +1,113 @@ +/* +Copyright (c) 2008 Franklin Schmidt <fschmidt@gmail.com> + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. +*/ + +package fschmidt.util.java; + +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.lang.reflect.Method; +import java.lang.reflect.InvocationTargetException; + + +public class ProxyIntoThread<T> extends ProxyClass<T> { + private static final Logger logger = LoggerFactory.getLogger(ProxyIntoThread.class); + private final long timeout; + private volatile Thread thread; + private final Object lock = new Object(); + private boolean isCalling = false; + private Method method; + private Object[] args; + private Object rtn; + private Throwable ex; + + public ProxyIntoThread(String threadName,long timeout,final T obj,Class<T> cls) { + super(obj,cls); + this.timeout = timeout; + logger.info("Name = " + threadName + " / timeout = " + timeout + " / isCalling = " + isCalling); + thread = new Thread( + new Runnable(){public void run(){ + synchronized(lock) { + while(thread!=null) { + while( !isCalling ) { + try { + lock.wait(ProxyIntoThread.this.timeout); + } catch(InterruptedException e) { + logger.error("",e); + throw new RuntimeException(e); + } + if( !isCalling ) { + logger.error("timed out"); + throw new RuntimeException("timed out"); + } + } + try { + rtn = invoke(method,args); + } catch(Throwable e) { + ex = e; + } finally { + isCalling = false; + lock.notifyAll(); + } + } + } + }} + , threadName + ); + thread.start(); + } + + public Object invoke(Object proxy,Method method,Object[] args) + throws Throwable + { + synchronized(lock) { + if( thread==null ) + throw new RuntimeException("thread died"); + if( isCalling ) + throw new RuntimeException("Already calling " + this.method.getName()); + this.method = method; + this.args = args; + this.ex = null; + isCalling = true; + lock.notifyAll(); + while( isCalling ) { + try { + lock.wait(timeout); + } catch(InterruptedException e) { + logger.error("",e); + throw new RuntimeException(e); + } + if( isCalling ) { + logger.error("timed out"); + throw new RuntimeException("timed out"); + } + } + if( ex != null ) + throw ex; + return this.rtn; + } + } + + public void stop() { + thread = null; + } +}