feat(jdk8): move files to new folder to avoid resources compiled.

jdkSrc/jdk8/sun/management/snmp/jvminstr/JvmMemPoolTableMetaImpl.java

@@ -0,0 +1,311 @@
+/*
+ * Copyright (c) 2003, 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 sun.management.snmp.jvminstr;
+
+// java imports
+//
+import com.sun.jmx.mbeanserver.Util;
+import java.io.Serializable;
+import java.util.List;
+import java.util.Map;
+import java.util.TreeMap;
+
+
+// jmx imports
+//
+import javax.management.MBeanServer;
+import javax.management.ObjectName;
+import com.sun.jmx.snmp.SnmpOid;
+import com.sun.jmx.snmp.SnmpStatusException;
+
+// jdmk imports
+//
+import com.sun.jmx.snmp.agent.SnmpMib;
+import com.sun.jmx.snmp.agent.SnmpMibSubRequest;
+import com.sun.jmx.snmp.agent.SnmpStandardObjectServer;
+
+import java.lang.management.MemoryPoolMXBean;
+import java.lang.management.ManagementFactory;
+
+import sun.management.snmp.jvmmib.JvmMemPoolTableMeta;
+import sun.management.snmp.util.SnmpTableCache;
+import sun.management.snmp.util.SnmpNamedListTableCache;
+import sun.management.snmp.util.SnmpTableHandler;
+import sun.management.snmp.util.MibLogger;
+import sun.management.snmp.util.JvmContextFactory;
+
+/**
+ * The class is used for implementing the "JvmMemPoolTable" group.
+ */
+public class JvmMemPoolTableMetaImpl extends JvmMemPoolTableMeta {
+
+    static final long serialVersionUID = -2525820976094284957L;
+
+    /**
+     * A concrete implementation of {@link SnmpNamedListTableCache}, for the
+     * jvmMemPoolTable.
+     **/
+    private static class JvmMemPoolTableCache extends SnmpNamedListTableCache {
+
+        static final long serialVersionUID = -1755520683086760574L;
+
+        /**
+         * Create a weak cache for the jvmMemPoolTable.
+         * @param validity validity of the cached data, in ms.
+         **/
+        JvmMemPoolTableCache(long validity) {
+            this.validity = validity;
+        }
+
+        /**
+         * Use the MemoryPoolMXBean name as key.
+         * @param context A {@link TreeMap} as allocated by the parent
+         *        {@link SnmpNamedListTableCache} class.
+         * @param rawDatas List of {@link MemoryPoolMXBean}, as
+         *        returned by
+         * <code>ManagementFactory.getMemoryPoolMXBeans()</code>
+         * @param rank The <var>rank</var> of <var>item</var> in the list.
+         * @param item The <var>rank</var><super>th</super>
+         *        <code>MemoryPoolMXBean</code> in the list.
+         * @return  <code>((MemoryPoolMXBean)item).getName()</code>
+         **/
+        protected String getKey(Object context, List<?> rawDatas,
+                                int rank, Object item) {
+            if (item == null) return null;
+            final String name = ((MemoryPoolMXBean)item).getName();
+            log.debug("getKey", "key=" + name);
+            return name;
+        }
+
+        /**
+         * Call <code>getTableDatas(JvmContextFactory.getUserData())</code>.
+         **/
+        public SnmpTableHandler getTableHandler() {
+            final Map<Object, Object> userData = JvmContextFactory.getUserData();
+            return getTableDatas(userData);
+        }
+
+        /**
+         * Return the key used to cache the raw data of this table.
+         **/
+        protected String getRawDatasKey() {
+            return "JvmMemManagerTable.getMemoryPools";
+        }
+
+        /**
+         * Call ManagementFactory.getMemoryPoolMXBeans() to
+         * load the raw data of this table.
+         **/
+        protected List<MemoryPoolMXBean> loadRawDatas(Map<Object, Object> userData) {
+            return ManagementFactory.getMemoryPoolMXBeans();
+        }
+    }
+
+    // The weak cache for this table.
+    protected SnmpTableCache cache;
+
+    /**
+     * Constructor for the table.
+     * Initialize metadata for "JvmMemPoolTableMeta".
+     */
+    public JvmMemPoolTableMetaImpl(SnmpMib myMib,
+                                   SnmpStandardObjectServer objserv) {
+        super(myMib,objserv);
+        this.cache = new
+            JvmMemPoolTableCache(((JVM_MANAGEMENT_MIB_IMPL)myMib).
+                                    validity()*30);
+    }
+
+
+    // See com.sun.jmx.snmp.agent.SnmpMibTable
+    protected SnmpOid getNextOid(Object userData)
+        throws SnmpStatusException {
+        // null means get the first OID.
+        return getNextOid(null,userData);
+    }
+
+    // See com.sun.jmx.snmp.agent.SnmpMibTable
+    protected SnmpOid getNextOid(SnmpOid oid, Object userData)
+        throws SnmpStatusException {
+        final boolean dbg = log.isDebugOn();
+        try {
+            if (dbg) log.debug("getNextOid", "previous=" + oid);
+
+
+            // Get the data handler.
+            //
+            SnmpTableHandler handler = getHandler(userData);
+            if (handler == null) {
+                // This should never happen.
+                // If we get here it's a bug.
+                //
+                if (dbg) log.debug("getNextOid", "handler is null!");
+                throw new
+                    SnmpStatusException(SnmpStatusException.noSuchInstance);
+            }
+
+            // Get the next oid
+            //
+            final SnmpOid next = handler.getNext(oid);
+            if (dbg) log.debug("getNextOid", "next=" + next);
+
+            // if next is null: we reached the end of the table.
+            //
+            if (next == null)
+                throw new
+                    SnmpStatusException(SnmpStatusException.noSuchInstance);
+
+            return next;
+        } catch (SnmpStatusException x) {
+            if (dbg) log.debug("getNextOid", "End of MIB View: " + x);
+            throw x;
+        } catch (RuntimeException r) {
+            if (dbg) log.debug("getNextOid", "Unexpected exception: " + r);
+            if (dbg) log.debug("getNextOid",r);
+            throw r;
+        }
+    }
+
+
+    // See com.sun.jmx.snmp.agent.SnmpMibTable
+    protected boolean contains(SnmpOid oid, Object userData) {
+
+        // Get the handler.
+        //
+        SnmpTableHandler handler = getHandler(userData);
+
+        // handler should never be null.
+        //
+        if (handler == null)
+            return false;
+
+        return handler.contains(oid);
+    }
+
+    // See com.sun.jmx.snmp.agent.SnmpMibTable
+    public Object getEntry(SnmpOid oid)
+        throws SnmpStatusException {
+
+        if (oid == null)
+            throw new SnmpStatusException(SnmpStatusException.noSuchInstance);
+
+        // Get the request contextual cache (userData).
+        //
+        final Map<Object, Object> m = Util.cast(JvmContextFactory.getUserData());
+
+        // We know in the case of this table that the index is an integer,
+        // it is thus the first OID arc of the index OID.
+        //
+        final long   index    = oid.getOidArc(0);
+
+        // We're going to use this name to store/retrieve the entry in
+        // the request contextual cache.
+        //
+        // Revisit: Probably better programming to put all these strings
+        //          in some interface.
+        //
+        final String entryTag = ((m==null)?null:("JvmMemPoolTable.entry." +
+                                                 index));
+
+        // If the entry is in the cache, simply return it.
+        //
+        if (m != null) {
+            final Object entry = m.get(entryTag);
+            if (entry != null) return entry;
+        }
+
+        // The entry was not in the cache, make a new one.
+        //
+        // Get the data hanler.
+        //
+        SnmpTableHandler handler = getHandler(m);
+
+        // handler should never be null.
+        //
+        if (handler == null)
+            throw new SnmpStatusException(SnmpStatusException.noSuchInstance);
+
+        // Get the data associated with our entry.
+        //
+        final Object data = handler.getData(oid);
+
+        // data may be null if the OID we were given is not valid.
+        //
+        if (data == null)
+            throw new SnmpStatusException(SnmpStatusException.noSuchInstance);
+
+        // make the new entry (transient object that will be kept only
+        // for the duration of the request.
+        //
+        if (log.isDebugOn())
+            log.debug("getEntry","data is a: " + data.getClass().getName());
+        final Object entry =
+            new JvmMemPoolEntryImpl((MemoryPoolMXBean)data,(int)index);
+
+        // Put the entry in the cache in case we need it later while processing
+        // the request.
+        //
+        if (m != null && entry != null) {
+            m.put(entryTag,entry);
+        }
+
+        return entry;
+    }
+
+    /**
+     * Get the SnmpTableHandler that holds the jvmMemPoolTable data.
+     * First look it up in the request contextual cache, and if it is
+     * not found, obtain it from the weak cache.
+     * <br>The request contextual cache will be released at the end of the
+     * current requests, and is used only to process this request.
+     * <br>The weak cache is shared by all requests, and is only
+     * recomputed when it is found to be obsolete.
+     * <br>Note that the data put in the request contextual cache is
+     *     never considered to be obsolete, in order to preserve data
+     *     coherency.
+     **/
+    protected SnmpTableHandler getHandler(Object userData) {
+        final Map<Object, Object> m;
+        if (userData instanceof Map) m = Util.cast(userData);
+        else m = null;
+
+        // Look in the contextual cache.
+        if (m != null) {
+            final SnmpTableHandler handler =
+                (SnmpTableHandler)m.get("JvmMemPoolTable.handler");
+            if (handler != null) return handler;
+        }
+
+        // No handler in contextual cache, make a new one.
+        final SnmpTableHandler handler = cache.getTableHandler();
+
+        if (m != null && handler != null )
+            m.put("JvmMemPoolTable.handler",handler);
+
+        return handler;
+    }
+
+    static final MibLogger log = new MibLogger(JvmMemPoolTableMetaImpl.class);
+}