/*
* JBoss, Home of Professional Open Source.
* Copyright 2013, 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.wildfly.extension.undertow.filters;
import java.lang.reflect.Constructor;
import java.util.ArrayList;
import java.util.List;
import io.undertow.Handlers;
import io.undertow.predicate.Predicate;
import io.undertow.server.HttpHandler;
import org.jboss.as.controller.AttributeDefinition;
import org.jboss.as.controller.ReloadRequiredRemoveStepHandler;
import org.jboss.as.controller.registry.ManagementResourceRegistration;
import org.jboss.as.controller.registry.OperationEntry;
import org.jboss.dmr.ModelNode;
import org.wildfly.extension.undertow.AbstractHandlerDefinition;
import org.wildfly.extension.undertow.Constants;
import org.wildfly.extension.undertow.logging.UndertowLogger;
/**
* @author Tomaz Cerar (c) 2013 Red Hat Inc.
*/
abstract class Filter extends AbstractHandlerDefinition {
private String name;
protected Filter(String name) {
super(name, Constants.FILTER);
this.name = name;
}
@Override
public void registerOperations(ManagementResourceRegistration resourceRegistration) {
FilterAdd add = new FilterAdd(this);
registerAddOperation(resourceRegistration, add, OperationEntry.Flag.RESTART_RESOURCE_SERVICES);
//registerRemoveOperation(resourceRegistration, new ServiceRemoveStepHandler(UndertowService.FILTER, add), OperationEntry.Flag.RESTART_RESOURCE_SERVICES);
registerRemoveOperation(resourceRegistration, ReloadRequiredRemoveStepHandler.INSTANCE, OperationEntry.Flag.RESTART_RESOURCE_SERVICES);
}
@Override
public String getXmlElementName() {
return name;
}
public HttpHandler createHttpHandler(final Predicate predicate, final ModelNode model, HttpHandler next) {
List<AttributeDefinition> attributes = new ArrayList<>(getAttributes());
HttpHandler handler = createHandler(getHandlerClass(), model, attributes, next);
if (predicate != null) {
return Handlers.predicate(predicate, handler, next);
} else {
return handler;
}
}
protected static HttpHandler createHandler(Class<? extends HttpHandler> handlerClass, final ModelNode model, List<AttributeDefinition> attributes, HttpHandler next) {
int numOfParams = attributes.size();
if (next != null) {
numOfParams++;
}
try {
for (Constructor<?> c : handlerClass.getDeclaredConstructors()) {
if (c.getParameterTypes().length == numOfParams) {
Object[] params = new Object[numOfParams];
Class[] parameterTypes = c.getParameterTypes();
int attrCounter = 0;
for (int i = 0; i < parameterTypes.length; i++) {
Class param = parameterTypes[i];
if (param == String.class) {
params[i] = model.get(attributes.get(attrCounter).getName()).asString();
attrCounter++;
} else if (param == Integer.class || param == int.class) {
params[i] = model.get(attributes.get(attrCounter).getName()).asInt();
attrCounter++;
} else if (param == Long.class || param == long.class) {
params[i] = model.get(attributes.get(attrCounter).getName()).asLong();
attrCounter++;
} else if (param == HttpHandler.class) {
params[i] = next;
}
}
return (HttpHandler) c.newInstance(params);
}
}
} catch (Throwable e) {
throw UndertowLogger.ROOT_LOGGER.cannotCreateHttpHandler(handlerClass, model, e);
}
throw UndertowLogger.ROOT_LOGGER.cannotCreateHttpHandler(handlerClass, model, null);
}
}