forked from jenkinsci/stapler
/
JellyFacet.java
136 lines (120 loc) · 5.42 KB
/
JellyFacet.java
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/*
* Copyright (c) 2004-2010, Kohsuke Kawaguchi
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are permitted provided
* that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright notice, this list of
* conditions and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
* THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.kohsuke.stapler.jelly;
import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
import org.apache.commons.jelly.JellyException;
import org.apache.commons.jelly.expression.ExpressionFactory;
import org.kohsuke.MetaInfServices;
import org.kohsuke.stapler.Dispatcher;
import org.kohsuke.stapler.Facet;
import org.kohsuke.stapler.MetaClass;
import org.kohsuke.stapler.RequestImpl;
import org.kohsuke.stapler.ResponseImpl;
import org.kohsuke.stapler.lang.Klass;
import edu.umd.cs.findbugs.annotations.NonNull;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import javax.servlet.ServletException;
import java.io.IOException;
import java.util.Collection;
import java.util.List;
import java.util.Set;
import java.util.logging.Level;
/**
* {@link Facet} that adds Jelly as the view.
*
* @author Kohsuke Kawaguchi
*/
@MetaInfServices(Facet.class)
public class JellyFacet extends Facet implements JellyCompatibleFacet {
/**
* Used to invoke Jelly script. Can be replaced to the custom object.
*/
public volatile ScriptInvoker scriptInvoker = new DefaultScriptInvoker();
/**
* Used to load {@link ResourceBundle}s.
*/
public volatile ResourceBundleFactory resourceBundleFactory = ResourceBundleFactory.INSTANCE;
@Override
public void buildViewDispatchers(final MetaClass owner, List<Dispatcher> dispatchers) {
dispatchers.add(createValidatingDispatcher(owner.loadTearOff(JellyClassTearOff.class), scriptInvoker));
}
@Override
public void buildIndexDispatchers(MetaClass owner, List<Dispatcher> dispatchers) {
try {
if (owner.loadTearOff(JellyClassTearOff.class).findScript("index.jelly")!=null) {
super.buildIndexDispatchers(owner, dispatchers);
}
} catch (JellyException e) {
LOGGER.log(Level.WARNING, "Failed to parse index.jelly for "+owner, e);
}
}
@Override
protected @NonNull String getExtensionSuffix() {
return ".jelly";
}
@Override
public Collection<Class<JellyClassTearOff>> getClassTearOffTypes() {
return TEAROFF_TYPES;
}
@Override
public Collection<String> getScriptExtensions() {
return EXTENSION;
}
@Override
public RequestDispatcher createRequestDispatcher(RequestImpl request, Klass<?> type, Object it, String viewName) throws IOException {
JellyClassTearOff scriptLoader = request.getWebApp().getMetaClass(type).loadTearOff(JellyClassTearOff.class);
return createRequestDispatcher(scriptLoader, scriptInvoker, it, viewName);
}
@Override
public boolean handleIndexRequest(RequestImpl req, ResponseImpl rsp, Object node, MetaClass nodeMetaClass) throws IOException, ServletException {
return handleIndexRequest(nodeMetaClass.loadTearOff(JellyClassTearOff.class), scriptInvoker, req, rsp, node);
}
/**
* Sets the Jelly {@link ExpressionFactory} to be used to parse views.
*
* <p>
* This method should be invoked from your implementation of
* {@link ServletContextListener#contextInitialized(ServletContextEvent)}.
*
* <p>
* Once views are parsed, they won't be re-parsed just because you called
* this method to override the expression factory.
*
* <p>
* The primary use case of this feature is to customize the behavior
* of JEXL evaluation.
*/
public static void setExpressionFactory( ServletContextEvent event, ExpressionFactory factory ) {
JellyClassLoaderTearOff.EXPRESSION_FACTORY = factory;
}
/**
* This flag will activate the Jelly evaluation trace.
* It generates extra comments into HTML, indicating where the fragment was rendered.
*/
@SuppressFBWarnings(value = "MS_SHOULD_BE_FINAL", justification = "Legacy switch.")
public static boolean TRACE = Boolean.getBoolean("stapler.jelly.trace");
private static final Set<Class<JellyClassTearOff>> TEAROFF_TYPES = Set.of(JellyClassTearOff.class);
private static final Set<String> EXTENSION = Set.of(".jelly");
}