/* * Copyright (c) 2003, 2006, 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 * questions. */package sun.management.snmp.util; import com.sun.jmx.snmp.SnmpOid;import com.sun.jmx.snmp.SnmpStatusException; import java.io.Serializable; import java.util.Comparator;import java.util.Arrays;import java.util.TreeMap;import java.util.List;import java.util.Iterator; import java.lang.ref.WeakReference; /** * This class is used to cache LoadedClass table data. * WARNING : MUST IMPLEMENT THE SnmpTableHandler directly. Some changes in daniel classes. **/public final class SnmpLoadedClassData extends SnmpCachedData {     /**     * Constructs a new instance of SnmpLoadedClassData. Instances are     * immutable.     * @param lastUpdated Time stamp as returned by     *        {@link System#currentTimeMillis System.currentTimeMillis()}     * @param indexMap The table indexed table data, sorted in ascending     *                 order by {@link #oidComparator}. The keys must be     *                 instances of {@link SnmpOid}.     **/    public SnmpLoadedClassData(long lastUpdated, TreeMap<SnmpOid, Object> indexMap) {        super(lastUpdated, indexMap, false);    }      // SnmpTableHandler.getData()    public final Object getData(SnmpOid index) {        int pos = 0;         try {            pos = (int) index.getOidArc(0);        }catch(SnmpStatusException e) {            return null;        }         if (pos >= datas.length) return null;        return datas[pos];    }     // SnmpTableHandler.getNext()    public final SnmpOid getNext(SnmpOid index) {        int pos = 0;        if (index == null) {            if( (datas!= null) && (datas.length >= 1) )                return new SnmpOid(0);        }        try {            pos = (int) index.getOidArc(0);        }catch(SnmpStatusException e) {            return null;        }         if(pos < (datas.length - 1))            return new SnmpOid(pos+1);        else            return null;    }     // SnmpTableHandler.contains()    public final boolean contains(SnmpOid index) {        int pos = 0;         try {            pos = (int) index.getOidArc(0);        }catch(SnmpStatusException e) {            return false;        }         return (pos < datas.length);    } }