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/*
 * Copyright (c) 2000, 2003, 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
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 */

package com.sun.jmx.snmp.agent;

// jmx imports
//
import com.sun.jmx.snmp.SnmpValue;
import com.sun.jmx.snmp.SnmpStatusException;

/**
 * <p>
 * This interface defines the methods that must be implemented by an
 * SNMP metadata object that needs to interact with an
 * {@link com.sun.jmx.snmp.agent.SnmpGenericObjectServer} object.
 * </p>
 *
 * <p>
 * All these methods are usually generated by <code>mibgen</code> when
 * run in generic-metadata mode.
 * </p>
 *
 * <p><b><i>
 * This interface is used internally between the generated Metadata and
 * the SNMP runtime and you shouldn't need to worry about it, because
 * you will never have to use it directly.
 * </b></i></p>
 *
 * <p><b>This API is a Sun Microsystems internal API  and is subject
 * to change without notice.</b></p>
 **/
public interface SnmpGenericMetaServer {

    /**
     * Construct an attribute value (as returned by Attribute::getValue())
     * from an SnmpValue. The returned attribute value can be used to
     * construct an Attribute object.
     *
     * @param id The OID arc identifying the variable for which the
     *           value is constructed.
     * @param value The SnmpValue from which the Attribute::value will be
     *              constructed.
     * @return The attribute value built from the given <code>value</code>.
     * @exception SnmpStatusException if the attribute value cannot be built
     *            from the given SnmpValue <code>value</code>.
     *
     */
    Object buildAttributeValue(long id, SnmpValue value)
        throws SnmpStatusException;

    /**
     * Construct an SnmpValue from an Attribute value as returned by
     * Attribute::getValue().
     *
     * @param id The OID arc identifying the variable for which the
     *           value is constructed.
     * @param value The attribute value as returned by Attribute::getValue().
     *
     * @return The SnmpValue built from the given <code>value</code>.
     * @exception SnmpStatusException if the SnmpValue cannot be built from
     *            the given <code>value</code>.
     **/
    SnmpValue buildSnmpValue(long id, Object value)
        throws SnmpStatusException;

    /**
     * Return the name of the attribute corresponding to the
     * SNMP variable identified by the given <code>id</code>.
     *
     * @param id The OID arc identifying the variable.
     *
     * @return The name of the variable identified by the given
     *         <code>id</code>.
     *
     * @exception SnmpStatusException if the given <code>id</code> does not
     *            correspond to a known variable.
     */
    String getAttributeName(long id)
        throws SnmpStatusException;

    /**
     * Check the access rights for a SET operation.
     *
     * @param x  The new requested value.
     * @param id The OID arc identifying the variable for which the SET is
     *           requested.
     * @param data A contextual object containing user-data.
     *           This object is allocated through the <code>
     *           {@link com.sun.jmx.snmp.agent.SnmpUserDataFactory}</code>
     *           for each incoming SNMP request.
     * @exception SnmpStatusException if the SET operation must be rejected.
     */
    void checkSetAccess(SnmpValue x, long id, Object data)
        throws SnmpStatusException;

    /**
     * Check the access rights for a GET operation.
     *

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