Quelle UserMBean.java Sprache: JAVA

/*
* 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 java.util.List;

import javax.management.MalformedObjectNameException;
import javax.management.ObjectName;

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

/**
* <p>
* A <strong>ModelMBean</strong> implementation for the <code>org.apache.catalina.User</code> component.
* </p>
*
* @author Craig R. McClanahan
*/
public class UserMBean extends BaseModelMBean {

    private static final StringManager sm = StringManager.getManager(UserMBean.class);

    // ----------------------------------------------------- Instance Variables

    /**
     * The configuration information registry for our managed beans.
     */
    protected final Registry registry = MBeanUtils.createRegistry();

    /**
     * The <code>ManagedBean</code> information describing this MBean.
     */
    protected final ManagedBean managed = registry.findManagedBean("User");

    // ------------------------------------------------------------- Attributes

    /**
     * @return the MBean Names of all groups this user is a member of.
     */
    public String[] getGroups() {

        User user = (User) this.resource;
        List<String> results = new ArrayList<>();
        Iterator<Group> groups = user.getGroups();
        while (groups.hasNext()) {
            Group group = null;
            try {
                group = groups.next();
                ObjectName oname = MBeanUtils.createObjectName(managed.getDomain(), group);
                results.add(oname.toString());
            } catch (MalformedObjectNameException e) {
                throw new IllegalArgumentException(sm.getString("userMBean.createError.group", group), e);
            }
        }
        return results.toArray(new String[0]);
    }

    /**
     * @return the MBean Names of all roles assigned to this user.
     */
    public String[] getRoles() {

        User user = (User) this.resource;
        List<String> results = new ArrayList<>();
        Iterator<Role> roles = user.getRoles();
        while (roles.hasNext()) {
            Role role = null;
            try {
                role = roles.next();
                ObjectName oname = MBeanUtils.createObjectName(managed.getDomain(), role);
                results.add(oname.toString());
            } catch (MalformedObjectNameException e) {
                throw new IllegalArgumentException(sm.getString("userMBean.createError.role", role), e);
            }
        }
        return results.toArray(new String[0]);
    }

    // ------------------------------------------------------------- Operations

    /**
     * Add a new {@link Group} to those this user belongs to.
     *
     * @param groupname Group name of the new group
     */
    public void addGroup(String groupname) {

        User user = (User) this.resource;
        if (user == null) {
            return;
        }
        Group group = user.getUserDatabase().findGroup(groupname);
        if (group == null) {
            throw new IllegalArgumentException(sm.getString("userMBean.invalidGroup", groupname));
        }
        user.addGroup(group);
    }

    /**
     * Add a new {@link Role} to those this user belongs to.
     *
     * @param rolename Role name of the new role
     */
    public void addRole(String rolename) {

        User user = (User) this.resource;
        if (user == null) {
            return;
        }
        Role role = user.getUserDatabase().findRole(rolename);
        if (role == null) {
            throw new IllegalArgumentException(sm.getString("userMBean.invalidRole", rolename));
        }
        user.addRole(role);
    }

    /**
     * Remove a {@link Group} from those this user belongs to.
     *
     * @param groupname Group name of the old group
     */
    public void removeGroup(String groupname) {

        User user = (User) this.resource;
        if (user == null) {
            return;
        }
        Group group = user.getUserDatabase().findGroup(groupname);
        if (group == null) {
            throw new IllegalArgumentException(sm.getString("userMBean.invalidGroup", groupname));
        }
        user.removeGroup(group);
    }

    /**
     * Remove a {@link Role} from those this user belongs to.
     *
     * @param rolename Role name of the old role
     */
    public void removeRole(String rolename) {

        User user = (User) this.resource;
        if (user == null) {
            return;
        }
        Role role = user.getUserDatabase().findRole(rolename);
        if (role == null) {
            throw new IllegalArgumentException(sm.getString("userMBean.invalidRole", rolename));
        }
        user.removeRole(role);
    }
}

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