/hudson-remoting/src/main/java/hudson/remoting/PreloadJarTask.java
http://github.com/hudson/hudson · Java · 62 lines · 24 code · 7 blank · 31 comment · 2 complexity · 4aa6125dcc94bd77a2612780494595ca MD5 · raw file
- /*
- * The MIT License
- *
- * Copyright (c) 2004-2009, Sun Microsystems, Inc., Kohsuke Kawaguchi
- *
- * 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 hudson.remoting;
- import java.io.IOException;
- import java.net.URL;
- /**
- * {@link Callable} used to deliver a jar file to {@link RemoteClassLoader}.
- *
- * @author Kohsuke Kawaguchi
- */
- final class PreloadJarTask implements DelegatingCallable<Boolean,IOException> {
- /**
- * Jar file to be preloaded.
- */
- private final URL[] jars;
- private transient ClassLoader target;
- PreloadJarTask(URL[] jars, ClassLoader target) {
- this.jars = jars;
- this.target = target;
- }
- public ClassLoader getClassLoader() {
- return target;
- }
- public Boolean call() throws IOException {
- ClassLoader cl = Thread.currentThread().getContextClassLoader();
- if (!(cl instanceof RemoteClassLoader))
- return false;
- RemoteClassLoader rcl = (RemoteClassLoader) cl;
- boolean r = false;
- for (URL jar : jars)
- r |= rcl.prefetch(jar);
- return r;
- }
- }