/*

 * Copyright (c) 1997, 2007, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code 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 General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

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 */

package com.sun.jmx.snmp.IPAcl;

// java import

//

import java.io.Serializable;

import java.net.InetAddress;

import java.net.UnknownHostException;

import java.util.Hashtable;

import java.util.logging.Level;

import java.util.Vector;

import java.security.acl.NotOwnerException;

import static com.sun.jmx.defaults.JmxProperties.SNMP_LOGGER;

/**

 * The class defines an abstract representation of a host.

 *

 */

abstract class Host extends SimpleNode implements Serializable {

    public Host(int id) {

        super(id);

    }

    public Host(Parser p, int id) {

        super(p, id);

    }

    protected abstract PrincipalImpl createAssociatedPrincipal()

        throws UnknownHostException;

    protected abstract String getHname();

    public void buildAclEntries(PrincipalImpl owner, AclImpl acl) {

        // Create a principal

        //

        PrincipalImpl p=null;

        try {

            p = createAssociatedPrincipal();

        } catch(UnknownHostException e) {

            if (SNMP_LOGGER.isLoggable(Level.FINEST)) {

                SNMP_LOGGER.logp(Level.FINEST, Host.class.getName(),

                        "buildAclEntries",

                        "Cannot create ACL entry; got exception", e);

            }

            throw new IllegalArgumentException("Cannot create ACL entry for " + e.getMessage());

        }

        // Create an AclEntry

        //

        AclEntryImpl entry= null;

        try {

            entry = new AclEntryImpl(p);

            // Add permission

            //

            registerPermission(entry);

            acl.addEntry(owner, entry);

        } catch(UnknownHostException e) {

            if (SNMP_LOGGER.isLoggable(Level.FINEST)) {

                SNMP_LOGGER.logp(Level.FINEST, Host.class.getName(),

                        "buildAclEntries",

                        "Cannot create ACL entry; got exception", e);

            }

            return;

        } catch(NotOwnerException a) {

            if (SNMP_LOGGER.isLoggable(Level.FINEST)) {

                SNMP_LOGGER.logp(Level.FINEST, Host.class.getName(),

                        "buildAclEntries",

                        "Cannot create ACL entry; got exception", a);

            }

            return;

        }

    }

    private void registerPermission(AclEntryImpl entry) {

        JDMHost host= (JDMHost) jjtGetParent();

        JDMManagers manager= (JDMManagers) host.jjtGetParent();

        JDMAclItem acl= (JDMAclItem) manager.jjtGetParent();

        JDMAccess access= acl.getAccess();

        access.putPermission(entry);

        JDMCommunities comm= acl.getCommunities();

        comm.buildCommunities(entry);

    }

    public void buildTrapEntries(Hashtable<InetAddress, Vector<String>> dest) {

        JDMHostTrap host= (JDMHostTrap) jjtGetParent();

        JDMTrapInterestedHost hosts= (JDMTrapInterestedHost) host.jjtGetParent();

        JDMTrapItem trap = (JDMTrapItem) hosts.jjtGetParent();

        JDMTrapCommunity community = trap.getCommunity();

        String comm = community.getCommunity();

        InetAddress add = null;

        try {

            add = java.net.InetAddress.getByName(getHname());

        } catch(UnknownHostException e) {

            if (SNMP_LOGGER.isLoggable(Level.FINEST)) {

                SNMP_LOGGER.logp(Level.FINEST, Host.class.getName(),

                        "buildTrapEntries",

                        "Cannot create TRAP entry; got exception", e);

            }

            return;

        }

        Vector<String> list = null;

        if (dest.containsKey(add)){

            list = dest.get(add);

            if (!list.contains(comm)){

                list.addElement(comm);

            }

        } else {

            list = new Vector<String>();

            list.addElement(comm);

            dest.put(add,list);

        }

    }

    public void buildInformEntries(Hashtable<InetAddress, Vector<String>> dest) {

        JDMHostInform host= (JDMHostInform) jjtGetParent();

        JDMInformInterestedHost hosts= (JDMInformInterestedHost) host.jjtGetParent();

        JDMInformItem inform = (JDMInformItem) hosts.jjtGetParent();

        JDMInformCommunity community = inform.getCommunity();

        String comm = community.getCommunity();

        InetAddress add = null;

        try {

            add = java.net.InetAddress.getByName(getHname());

        } catch(UnknownHostException e) {

            if (SNMP_LOGGER.isLoggable(Level.FINEST)) {

                SNMP_LOGGER.logp(Level.FINEST, Host.class.getName(),

                        "buildTrapEntries",

                        "Cannot create INFORM entry; got exception", e);

            }

            return;

        }

        Vector<String> list = null;

        if (dest.containsKey(add)){

            list = dest.get(add);

            if (!list.contains(comm)){

                list.addElement(comm);

            }

        } else {

            list = new Vector<String>();

            list.addElement(comm);

            dest.put(add,list);

        }

    }

}