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Tomcat example source code file (MemoryUserDatabaseMBean.java)

This example Tomcat source code file (MemoryUserDatabaseMBean.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Tomcat tags/keywords

arraylist, exception, exception, group, illegalargumentexception, illegalargumentexception, managedbean, management, mbean, role, string, string, user, userdatabase, userdatabase, util

The Tomcat MemoryUserDatabaseMBean.java source code

/*
 * 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.catalina.mbeans;


import java.util.ArrayList;
import java.util.Iterator;

import javax.management.MBeanException;
import javax.management.MBeanServer;
import javax.management.MalformedObjectNameException;
import javax.management.ObjectName;
import javax.management.RuntimeOperationsException;

import org.apache.catalina.Group;
import org.apache.catalina.Role;
import org.apache.catalina.User;
import org.apache.catalina.UserDatabase;
import org.apache.tomcat.util.modeler.BaseModelMBean;
import org.apache.tomcat.util.modeler.ManagedBean;
import org.apache.tomcat.util.modeler.Registry;

/**
 * <p>A ModelMBean implementation for the
 * <code>org.apache.catalina.users.MemoryUserDatabase component.

* * @author Craig R. McClanahan * @version $Revision: 467222 $ $Date: 2006-10-24 05:17:11 +0200 (mar., 24 oct. 2006) $ */ public class MemoryUserDatabaseMBean extends BaseModelMBean { // ----------------------------------------------------------- Constructors /** * Construct a <code>ModelMBean with default * <code>ModelMBeanInfo information. * * @exception MBeanException if the initializer of an object * throws an exception * @exception RuntimeOperationsException if an IllegalArgumentException * occurs */ public MemoryUserDatabaseMBean() throws MBeanException, RuntimeOperationsException { super(); } // ----------------------------------------------------- Instance Variables /** * The configuration information registry for our managed beans. */ protected Registry registry = MBeanUtils.createRegistry(); /** * The <code>MBeanServer in which we are registered. */ protected MBeanServer mserver = MBeanUtils.createServer(); /** * The <code>ManagedBean information describing this MBean. */ protected ManagedBean managed = registry.findManagedBean("MemoryUserDatabase"); /** * The <code>ManagedBean information describing Group MBeans. */ protected ManagedBean managedGroup = registry.findManagedBean("Group"); /** * The <code>ManagedBean information describing Group MBeans. */ protected ManagedBean managedRole = registry.findManagedBean("Role"); /** * The <code>ManagedBean information describing User MBeans. */ protected ManagedBean managedUser = registry.findManagedBean("User"); // ------------------------------------------------------------- Attributes /** * Return the MBean Names of all groups defined in this database. */ public String[] getGroups() { UserDatabase database = (UserDatabase) this.resource; ArrayList results = new ArrayList(); Iterator groups = database.getGroups(); while (groups.hasNext()) { Group group = (Group) groups.next(); results.add(findGroup(group.getGroupname())); } return ((String[]) results.toArray(new String[results.size()])); } /** * Return the MBean Names of all roles defined in this database. */ public String[] getRoles() { UserDatabase database = (UserDatabase) this.resource; ArrayList results = new ArrayList(); Iterator roles = database.getRoles(); while (roles.hasNext()) { Role role = (Role) roles.next(); results.add(findRole(role.getRolename())); } return ((String[]) results.toArray(new String[results.size()])); } /** * Return the MBean Names of all users defined in this database. */ public String[] getUsers() { UserDatabase database = (UserDatabase) this.resource; ArrayList results = new ArrayList(); Iterator users = database.getUsers(); while (users.hasNext()) { User user = (User) users.next(); results.add(findUser(user.getUsername())); } return ((String[]) results.toArray(new String[results.size()])); } // ------------------------------------------------------------- Operations /** * Create a new Group and return the corresponding MBean Name. * * @param groupname Group name of the new group * @param description Description of the new group */ public String createGroup(String groupname, String description) { UserDatabase database = (UserDatabase) this.resource; Group group = database.createGroup(groupname, description); try { MBeanUtils.createMBean(group); } catch (Exception e) { IllegalArgumentException iae = new IllegalArgumentException ("Exception creating group " + group + " MBean"); iae.initCause(e); throw iae; } return (findGroup(groupname)); } /** * Create a new Role and return the corresponding MBean Name. * * @param rolename Group name of the new group * @param description Description of the new group */ public String createRole(String rolename, String description) { UserDatabase database = (UserDatabase) this.resource; Role role = database.createRole(rolename, description); try { MBeanUtils.createMBean(role); } catch (Exception e) { IllegalArgumentException iae = new IllegalArgumentException ("Exception creating role " + role + " MBean"); iae.initCause(e); throw iae; } return (findRole(rolename)); } /** * Create a new User and return the corresponding MBean Name. * * @param username User name of the new user * @param password Password for the new user * @param fullName Full name for the new user */ public String createUser(String username, String password, String fullName) { UserDatabase database = (UserDatabase) this.resource; User user = database.createUser(username, password, fullName); try { MBeanUtils.createMBean(user); } catch (Exception e) { IllegalArgumentException iae = new IllegalArgumentException ("Exception creating user " + user + " MBean"); iae.initCause(e); throw iae; } return (findUser(username)); } /** * Return the MBean Name for the specified group name (if any); * otherwise return <code>null. * * @param groupname Group name to look up */ public String findGroup(String groupname) { UserDatabase database = (UserDatabase) this.resource; Group group = database.findGroup(groupname); if (group == null) { return (null); } try { ObjectName oname = MBeanUtils.createObjectName(managedGroup.getDomain(), group); return (oname.toString()); } catch (MalformedObjectNameException e) { IllegalArgumentException iae = new IllegalArgumentException ("Cannot create object name for group " + group); iae.initCause(e); throw iae; } } /** * Return the MBean Name for the specified role name (if any); * otherwise return <code>null. * * @param rolename Role name to look up */ public String findRole(String rolename) { UserDatabase database = (UserDatabase) this.resource; Role role = database.findRole(rolename); if (role == null) { return (null); } try { ObjectName oname = MBeanUtils.createObjectName(managedRole.getDomain(), role); return (oname.toString()); } catch (MalformedObjectNameException e) { IllegalArgumentException iae = new IllegalArgumentException ("Cannot create object name for role " + role); iae.initCause(e); throw iae; } } /** * Return the MBean Name for the specified user name (if any); * otherwise return <code>null. * * @param username User name to look up */ public String findUser(String username) { UserDatabase database = (UserDatabase) this.resource; User user = database.findUser(username); if (user == null) { return (null); } try { ObjectName oname = MBeanUtils.createObjectName(managedUser.getDomain(), user); return (oname.toString()); } catch (MalformedObjectNameException e) { IllegalArgumentException iae = new IllegalArgumentException ("Cannot create object name for user " + user); iae.initCause(e); throw iae; } } /** * Remove an existing group and destroy the corresponding MBean. * * @param groupname Group name to remove */ public void removeGroup(String groupname) { UserDatabase database = (UserDatabase) this.resource; Group group = database.findGroup(groupname); if (group == null) { return; } try { MBeanUtils.destroyMBean(group); database.removeGroup(group); } catch (Exception e) { IllegalArgumentException iae = new IllegalArgumentException ("Exception destroying group " + group + " MBean"); iae.initCause(e); throw iae; } } /** * Remove an existing role and destroy the corresponding MBean. * * @param rolename Role name to remove */ public void removeRole(String rolename) { UserDatabase database = (UserDatabase) this.resource; Role role = database.findRole(rolename); if (role == null) { return; } try { MBeanUtils.destroyMBean(role); database.removeRole(role); } catch (Exception e) { IllegalArgumentException iae = new IllegalArgumentException ("Exception destroying role " + role + " MBean"); iae.initCause(e); throw iae; } } /** * Remove an existing user and destroy the corresponding MBean. * * @param username User name to remove */ public void removeUser(String username) { UserDatabase database = (UserDatabase) this.resource; User user = database.findUser(username); if (user == null) { return; } try { MBeanUtils.destroyMBean(user); database.removeUser(user); } catch (Exception e) { IllegalArgumentException iae = new IllegalArgumentException ("Exception destroying user " + user + " MBean"); iae.initCause(e); throw iae; } } }

Other Tomcat examples (source code examples)

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