/*
 * Copyright (c) 2000, 2017 Oracle and/or its affiliates. All rights reserved.
 * Copyright (c) 2021 Contributors to the Eclipse Foundation
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0, which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception, which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 */

/*
 * @(#)ObjStore.java	1.14 06/28/07
 */

package com.sun.messaging.jmq.admin.objstore;

import java.util.Vector;

import javax.naming.directory.Attributes;

/**
 * This class represents a general object store for the JMS administered object management.
 *
 * Issues to be resolved: 1. Do we want to make sure that the object type to add / delete is of type Destination /
 * ConnectionFactory? If we do, then we should throw a specific type of an exception... or should we care?
 */
public interface ObjStore {

    /**
     * Opens the store. Ideally, this is when the validation of ObjStoreAttrs should take place. However, JNDI does not
     * specify when to validate; it is either at the creation of initialContext or at the time of an operation execution.
     *
     * @exception ObjStoreException if an error occurs
     */
    void open() throws ObjStoreException;

    /**
     * Closes the store.
     *
     * @exception ObjStoreException if an error occurs
     */
    void close() throws ObjStoreException;

    /**
     * Adds a JMS administered object defined by obj to the store. The NameAlreadyExistsException is thrown only when
     * overwrite is false.
     *
     * @param lookupName binding name used to identify the object
     * @param Object JMS administered object to store
     * @param overwrite flag indicating whether to overwrite the existing object or not
     *
     * @exception NameAlreadyExistsException if lookupName already exists
     * @exception ObjStoreException object type is invalid or error occurs
     */
    void add(String lookupName, Object obj, boolean overwrite) throws ObjStoreException;

    /**
     * Adds a JMS administered object defined by obj to the store. The NameAlreadyExistsException is thrown only when
     * overwrite is false.
     *
     * @param lookupName binding name used to identify the object
     * @param Object JMS administered object to store
     * @param bindAttrs binding attributes used to set the attributes of the object to be bound
     * @param overwrite flag indicating whether to overwrite the existing object or not
     *
     * @exception NameAlreadyExistsException if lookupName already exists
     * @exception ObjStoreException object type is invalid or error occurs
     */
    void add(String lookupName, Object obj, Attributes bindAttrs, boolean overwrite) throws ObjStoreException;

    /**
     * Deletes a JMS administered object from the store.
     *
     * @param lookupName name of the object to delete
     *
     * @exception NameNotFoundException if lookupName does not exist in the store
     * @exception ObjStoreException if an error occurs
     */
    void delete(String lookupName) throws ObjStoreException;

    /**
     * Retrieves the instance of the administered object. If the object with 'lookupName' is not found, this will return
     * null.
     *
     * @param lookupName name of the object to retrieve
     *
     * @return Object a retrieved administered object reference
     *
     * @exception ObjStoreException if an error occurs
     */
    Object retrieve(String lookupName) throws ObjStoreException;

    /**
     * Returns a Vector of all the JMS administered objects.
     *
     * @return Vector vector of objects
     *
     * @exception ObjStoreException if an error occurs
     *
     * REVISIT: NOTE: Currently, the returned vector of objects is store-dependent. In the case of JNDI, it will return a
     * vector of javax.naming.NameDClassPair.
     */
    Vector list() throws ObjStoreException;

    /**
     * Returns a Vector of all the JMS administered objects of type defined by 'type'.
     *
     * @param type types of JMS administered objects to list
     *
     * @return Vector vector of objects
     *
     * @exception ObjStoreException if an error occurs
     *
     * REVISIT: We need to define what types are valid by creating constants. So far this method is not implemented by
     * anybody.
     */
    Vector list(int[] type) throws ObjStoreException;

    /**
     * Returns true if the store is open. Returns false otherwise.
     *
     * @return true or false
     */
    boolean isOpen();

    /**
     * Returns the unique id associated with this store.
     *
     * @return String unique ID associated with this store
     */
    String getID();

    String getDescription();

    /**
     * Sets the ObjStore attributes.
     *
     * @param attrs new ObjStoreAttrs
     *
     * @exception ObjStoreException if an error occurs
     */
    void setObjStoreAttrs(ObjStoreAttrs newAttrs) throws ObjStoreException;

    /**
     * Returns the ObjStoreAtts.
     *
     * @return ObjStoreAttrs ObjStoreAttrs associated with this class.
     */
    ObjStoreAttrs getObjStoreAttrs();

    /**
     * Checks for user's authentication info.
     *
     * @param osa ObjStoreAttrs that the user has initially specified
     *
     * @return Vector names of missing security attributes. If none, the size of the Vector is 0.
     */
    Vector checkAuthentication(ObjStoreAttrs osa);

    /**
     * Adds a pair of name-value attribute to the ObjStoreAttrs.
     *
     * @param name name of the attribute
     * @param value value of the attribute specified by name
     */
    void addObjStoreAttr(String name, String value);

    // to be determined
    void search();
}
