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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.tomcat.util.modeler.modules;
import java.io.InputStream;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
import javax.management.ObjectName;
import org.apache.juli.logging.Log;
import org.apache.juli.logging.LogFactory;
import org.apache.tomcat.util.digester.Digester;
import org.apache.tomcat.util.modeler.ManagedBean;
import org.apache.tomcat.util.modeler.Registry;
public class MbeansDescriptorsDigesterSource extends ModelerSource {
private static final Log log = LogFactory.getLog(MbeansDescriptorsDigesterSource.class);
private static final Object dLock = new Object();
private Registry registry;
private final List<ObjectName> mbeans = new ArrayList<>();
private static Digester digester = null;
private static Digester createDigester() {
Digester digester = new Digester();
digester.setNamespaceAware(false);
digester.setValidating(false);
URL url = Registry.getRegistry(null).getClass()
.getResource("/org/apache/tomcat/util/modeler/mbeans-descriptors.dtd");
if (url != null) {
digester.register("-//Apache Software Foundation//DTD Model MBeans Configuration File", url.toString());
}
// Configure the parsing rules
digester.addObjectCreate("mbeans-descriptors/mbean", "org.apache.tomcat.util.modeler.ManagedBean");
digester.addSetProperties("mbeans-descriptors/mbean");
digester.addSetNext("mbeans-descriptors/mbean", "add", "java.lang.Object");
digester.addObjectCreate("mbeans-descriptors/mbean/attribute", "org.apache.tomcat.util.modeler.AttributeInfo");
digester.addSetProperties("mbeans-descriptors/mbean/attribute");
digester.addSetNext("mbeans-descriptors/mbean/attribute", "addAttribute",
"org.apache.tomcat.util.modeler.AttributeInfo");
digester.addObjectCreate("mbeans-descriptors/mbean/notification",
"org.apache.tomcat.util.modeler.NotificationInfo");
digester.addSetProperties("mbeans-descriptors/mbean/notification");
digester.addSetNext("mbeans-descriptors/mbean/notification", "addNotification",
"org.apache.tomcat.util.modeler.NotificationInfo");
digester.addObjectCreate("mbeans-descriptors/mbean/notification/descriptor/field",
"org.apache.tomcat.util.modeler.FieldInfo");
digester.addSetProperties("mbeans-descriptors/mbean/notification/descriptor/field");
digester.addSetNext("mbeans-descriptors/mbean/notification/descriptor/field", "addField",
"org.apache.tomcat.util.modeler.FieldInfo");
digester.addCallMethod("mbeans-descriptors/mbean/notification/notification-type", "addNotifType", 0);
digester.addObjectCreate("mbeans-descriptors/mbean/operation", "org.apache.tomcat.util.modeler.OperationInfo");
digester.addSetProperties("mbeans-descriptors/mbean/operation");
digester.addSetNext("mbeans-descriptors/mbean/operation", "addOperation",
"org.apache.tomcat.util.modeler.OperationInfo");
digester.addObjectCreate("mbeans-descriptors/mbean/operation/descriptor/field",
"org.apache.tomcat.util.modeler.FieldInfo");
digester.addSetProperties("mbeans-descriptors/mbean/operation/descriptor/field");
digester.addSetNext("mbeans-descriptors/mbean/operation/descriptor/field", "addField",
"org.apache.tomcat.util.modeler.FieldInfo");
digester.addObjectCreate("mbeans-descriptors/mbean/operation/parameter",
"org.apache.tomcat.util.modeler.ParameterInfo");
digester.addSetProperties("mbeans-descriptors/mbean/operation/parameter");
digester.addSetNext("mbeans-descriptors/mbean/operation/parameter", "addParameter",
"org.apache.tomcat.util.modeler.ParameterInfo");
return digester;
}
public void setRegistry(Registry reg) {
this.registry = reg;
}
public void setSource(Object source) {
this.source = source;
}
@Override
public List<ObjectName> loadDescriptors(Registry registry, String type, Object source) throws Exception {
setRegistry(registry);
setSource(source);
execute();
return mbeans;
}
public void execute() throws Exception {
if (registry == null) {
registry = Registry.getRegistry(null);
}
InputStream stream = (InputStream) source;
List<ManagedBean> loadedMbeans = new ArrayList<>();
synchronized (dLock) {
if (digester == null) {
digester = createDigester();
}
// Process the input file to configure our registry
try {
// Push our registry object onto the stack
digester.push(loadedMbeans);
digester.parse(stream);
} catch (Exception e) {
log.error(sm.getString("modules.digesterParseError"), e);
throw e;
} finally {
digester.reset();
}
}
for (ManagedBean loadedMbean : loadedMbeans) {
registry.addManagedBean(loadedMbean);
}
}
}
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