| /* |
| * Copyright (c) 1997, 2012, 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 com.sun.jmx.snmp.agent; |
| |
| import java.io.Serializable; |
| import java.util.Enumeration; |
| import java.util.logging.Level; |
| import java.util.Vector; |
| |
| import javax.management.ObjectName; |
| import javax.management.MBeanServer; |
| import javax.management.MalformedObjectNameException; |
| import javax.management.InstanceAlreadyExistsException; |
| import javax.management.MBeanRegistrationException; |
| import javax.management.NotCompliantMBeanException; |
| |
| import static com.sun.jmx.defaults.JmxProperties.SNMP_ADAPTOR_LOGGER; |
| import com.sun.jmx.snmp.SnmpOid; |
| import com.sun.jmx.snmp.SnmpVarBind; |
| import com.sun.jmx.snmp.SnmpDefinitions; |
| import com.sun.jmx.snmp.SnmpStatusException; |
| import com.sun.jmx.snmp.SnmpEngine; |
| import com.sun.jmx.snmp.SnmpUnknownModelException; |
| import com.sun.jmx.snmp.internal.SnmpAccessControlModel; |
| import com.sun.jmx.snmp.internal.SnmpEngineImpl; |
| |
| /** |
| * This list is used in order to construct the OID during the getnext. |
| * The constructed oid is checked by the checker AcmChecker. |
| */ |
| final class LongList { |
| |
| public static int DEFAULT_CAPACITY = 10; |
| |
| public static int DEFAULT_INCREMENT = 10; |
| |
| |
| private final int DELTA; |
| private int size; |
| |
| /** |
| * The list content. Any access to this variable must be protected |
| * by a synchronized block on the LongList object. |
| * Only read-only action should be performed on this object. |
| **/ |
| public long[] list; |
| |
| LongList() { |
| this(DEFAULT_CAPACITY,DEFAULT_INCREMENT); |
| } |
| |
| LongList(int initialCapacity) { |
| this(initialCapacity,DEFAULT_INCREMENT); |
| } |
| |
| LongList(int initialCapacity, int delta) { |
| size = 0; |
| DELTA = delta; |
| list = allocate(initialCapacity); |
| } |
| |
| /** |
| * Same behaviour than size() in {@link java.util.List}. |
| **/ |
| public final int size() { return size;} |
| |
| /** |
| * Same behaviour than add(long o) in {@link java.util.List}. |
| * Any access to this method should be protected in a synchronized |
| * block on the LongList object. |
| **/ |
| public final boolean add(final long o) { |
| if (size >= list.length) |
| resize(); |
| list[size++]=o; |
| return true; |
| } |
| |
| /** |
| * Same behaviour than add(int index, long o) in |
| * {@link java.util.List}. |
| * Any access to this method should be protected in a synchronized |
| * block on the LongList object. |
| **/ |
| public final void add(final int index, final long o) { |
| if (index > size) throw new IndexOutOfBoundsException(); |
| if (index >= list.length) resize(); |
| if (index == size) { |
| list[size++]=o; |
| return; |
| } |
| |
| java.lang.System.arraycopy(list,index,list,index+1,size-index); |
| list[index]=o; |
| size++; |
| } |
| |
| /** |
| * Adds <var>count</var> elements to the list. |
| * @param at index at which the elements must be inserted. The |
| * first element will be inserted at this index. |
| * @param src An array containing the elements we want to insert. |
| * @param from Index of the first element from <var>src</var> that |
| * must be inserted. |
| * @param count number of elements to insert. |
| * Any access to this method should be protected in a synchronized |
| * block on the LongList object. |
| **/ |
| public final void add(final int at,final long[] src, final int from, |
| final int count) { |
| if (count <= 0) return; |
| if (at > size) throw new IndexOutOfBoundsException(); |
| ensure(size+count); |
| if (at < size) { |
| java.lang.System.arraycopy(list,at,list,at+count,size-at); |
| } |
| java.lang.System.arraycopy(src,from,list,at,count); |
| size+=count; |
| } |
| |
| /** |
| * Any access to this method should be protected in a synchronized |
| * block on the LongList object. |
| **/ |
| public final long remove(final int from, final int count) { |
| if (count < 1 || from < 0) return -1; |
| if (from+count > size) return -1; |
| |
| final long o = list[from]; |
| final int oldsize = size; |
| size = size - count; |
| |
| if (from == size) return o; |
| |
| java.lang.System.arraycopy(list,from+count,list,from, |
| size-from); |
| return o; |
| } |
| |
| /** |
| * Same behaviour than remove(int index) in {@link java.util.List}. |
| * Any access to this method should be protected in a synchronized |
| * block on the LongList object. |
| **/ |
| public final long remove(final int index) { |
| if (index >= size) return -1; |
| final long o = list[index]; |
| list[index]=0; |
| if (index == --size) return o; |
| |
| java.lang.System.arraycopy(list,index+1,list,index, |
| size-index); |
| return o; |
| } |
| |
| /** |
| * Same behaviour than the toArray(long[] a) method in |
| * {@link java.util.List}. |
| * Any access to this method should be protected in a synchronized |
| * block on the LongList object. |
| **/ |
| public final long[] toArray(long[] a) { |
| java.lang.System.arraycopy(list,0,a,0,size); |
| return a; |
| } |
| |
| /** |
| * Same behaviour than the toArray() method in |
| * {@link java.util.List}. |
| * Any access to this method should be protected in a synchronized |
| * block on the LongList object. |
| **/ |
| public final long[] toArray() { |
| return toArray(new long[size]); |
| } |
| |
| /** |
| * Resize the list. Increase its capacity by DELTA elements. |
| * Any call to this method must be protected by a synchronized |
| * block on this LongList. |
| **/ |
| private final void resize() { |
| final long[] newlist = allocate(list.length + DELTA); |
| java.lang.System.arraycopy(list,0,newlist,0,size); |
| list = newlist; |
| } |
| |
| /** |
| * Resize the list. Insure that the new length will be at |
| * least equal to <var>length</var>. |
| * @param length new minimal length requested. |
| * Any call to this method must be protected by a synchronized |
| * block on this LongList. |
| **/ |
| private final void ensure(int length) { |
| if (list.length < length) { |
| final int min = list.length+DELTA; |
| length=(length<min)?min:length; |
| final long[] newlist = allocate(length); |
| java.lang.System.arraycopy(list,0,newlist,0,size); |
| list = newlist; |
| } |
| } |
| |
| /** |
| * Allocate a new array of object of specified length. |
| **/ |
| private final long[] allocate(final int length) { |
| return new long[length]; |
| } |
| |
| } |