diff agent/src/share/classes/sun/jvm/hotspot/utilities/soql/JSJavaVM.java @ 0:a61af66fc99e jdk7-b24

Initial load
author duke
date Sat, 01 Dec 2007 00:00:00 +0000
parents
children c18cbe5936b8
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/agent/src/share/classes/sun/jvm/hotspot/utilities/soql/JSJavaVM.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,234 @@
+/*
+ * Copyright 2004-2007 Sun Microsystems, Inc.  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.
+ *
+ * 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+package sun.jvm.hotspot.utilities.soql;
+
+import java.util.*;
+import sun.jvm.hotspot.debugger.*;
+import sun.jvm.hotspot.oops.*;
+import sun.jvm.hotspot.runtime.*;
+
+public class JSJavaVM extends DefaultScriptObject {
+    private static final int FIELD_ADDRESS_SIZE = 0;
+    private static final int FIELD_BUILD_INFO   = 1;
+    private static final int FIELD_CPU          = 2;
+    private static final int FIELD_FLAGS        = 3;
+    private static final int FIELD_HEAP         = 4;
+    private static final int FIELD_OS           = 5;
+    private static final int FIELD_SYS_PROPS    = 6;
+    private static final int FIELD_THREADS      = 7;
+    private static final int FIELD_TYPE         = 8;
+    private static final int FIELD_VERSION      = 9;
+    private static final int FIELD_CLASS_PATH   = 10;
+    private static final int FIELD_BOOT_CLASS_PATH  = 11;
+    private static final int FIELD_USER_DIR     = 12;
+    private static final int FIELD_UNDEFINED    = -1;
+
+    public JSJavaVM(JSJavaFactory factory) {
+        this.factory = factory;
+        this.vm = VM.getVM();
+    }
+
+    public Object get(String name) {
+        int fieldID = getFieldID(name);
+        switch (fieldID) {
+        case FIELD_ADDRESS_SIZE:
+            return new Long(getVMBit());
+        case FIELD_BUILD_INFO:
+            return vm.getVMInternalInfo();
+        case FIELD_CPU:
+            return vm.getCPU();
+        case FIELD_FLAGS:
+            return getFlags();
+        case FIELD_HEAP:
+            return getHeap();
+        case FIELD_OS:
+            return vm.getOS();
+        case FIELD_SYS_PROPS:
+            return getSysProps();
+        case FIELD_THREADS:
+            return getThreads();
+        case FIELD_TYPE:
+            return getType();
+        case FIELD_VERSION:
+            return vm.getVMRelease();
+        case FIELD_CLASS_PATH:
+            return getClassPath();
+        case FIELD_BOOT_CLASS_PATH:
+            return getBootClassPath();
+        case FIELD_USER_DIR:
+            return getUserDir();
+        case FIELD_UNDEFINED:
+        default:
+            return super.get(name);
+        }
+    }
+
+    public Object[] getIds() {
+        Object[] superIds = super.getIds();
+        Object[] tmp = fields.keySet().toArray();
+        Object[] res = new Object[superIds.length + tmp.length];
+        System.arraycopy(tmp, 0, res, 0, tmp.length);
+        System.arraycopy(superIds, 0, res, tmp.length, superIds.length);
+        return res;
+    }
+
+    public boolean has(String name) {
+        if (getFieldID(name) != FIELD_UNDEFINED) {
+            return true;
+        } else {
+            return super.has(name);
+        }
+    }
+
+    public void put(String name, Object value) {
+        if (getFieldID(name) == FIELD_UNDEFINED) {
+            super.put(name, value);
+        }
+    }
+
+    public String toString() {
+        StringBuffer buf = new StringBuffer();
+        buf.append("Java Hotspot ");
+        buf.append(getType());
+        buf.append(' ');
+        buf.append(getVMBit());
+        buf.append(" bit VM (build ");
+        buf.append(vm.getVMRelease());
+        buf.append(")");
+        return buf.toString();
+    }
+
+    //-- Internals only below this point
+    private static Map fields = new HashMap();
+    private static void addField(String name, int fieldId) {
+        fields.put(name, new Integer(fieldId));
+    }
+
+    private static int getFieldID(String name) {
+        Integer res = (Integer) fields.get(name);
+        return (res != null)? res.intValue() : FIELD_UNDEFINED;
+    }
+
+    static {
+        addField("addressSize", FIELD_ADDRESS_SIZE);
+        addField("buildInfo", FIELD_BUILD_INFO);
+        addField("cpu", FIELD_CPU);
+        addField("flags", FIELD_FLAGS);
+        addField("heap", FIELD_HEAP);
+        addField("os", FIELD_OS);
+        addField("sysProps", FIELD_SYS_PROPS);
+        addField("threads", FIELD_THREADS);
+        addField("type", FIELD_TYPE);
+        addField("version", FIELD_VERSION);
+        addField("classPath", FIELD_CLASS_PATH);
+        addField("bootClassPath", FIELD_BOOT_CLASS_PATH);
+        addField("userDir", FIELD_USER_DIR);
+    }
+
+    private long getVMBit() {
+        // address size in bits
+        return vm.getAddressSize() * 8;
+    }
+
+    private synchronized JSMap getFlags() {
+        if (flagsCache == null) {
+            VM.Flag[] flags = vm.getCommandLineFlags();
+            Map map = new HashMap();
+            if (flags != null) {
+                for (int f = 0; f < flags.length; f++) {
+                    VM.Flag flag = flags[f];
+                    map.put(flag.getName(), flag.getValue());
+                }
+            }
+            flagsCache = factory.newJSMap(map);
+        }
+        return flagsCache;
+    }
+
+    private synchronized JSJavaHeap getHeap() {
+        if (heapCache == null) {
+            heapCache = factory.newJSJavaHeap();
+        }
+        return heapCache;
+    }
+
+    private synchronized JSMap getSysProps() {
+        if (sysPropsCache == null) {
+            Properties props = vm.getSystemProperties();
+            Map map = new HashMap();
+            if (props != null) {
+                Enumeration e = props.propertyNames();
+                while (e.hasMoreElements()) {
+                    String key = (String) e.nextElement();
+                    map.put(key, props.getProperty(key));
+                }
+            }
+            sysPropsCache = factory.newJSMap(map);
+        }
+        return sysPropsCache;
+    }
+
+    private synchronized JSList getThreads() {
+        if (threadsCache == null) {
+            List threads = new ArrayList(0);
+            threadsCache = factory.newJSList(threads);
+            JavaThread jthread = vm.getThreads().first();
+            while (jthread != null) {
+                threads.add(jthread);
+                jthread = jthread.next();
+            }
+        }
+        return threadsCache;
+    }
+
+    private String getType() {
+        if (vm.isClientCompiler()) {
+            return "Client";
+        } else if (vm.isServerCompiler()) {
+            return "Server";
+        } else {
+            return "Core";
+        }
+    }
+
+    private String getClassPath() {
+        return vm.getSystemProperty("java.class.path");
+    }
+
+    private String getBootClassPath() {
+        return vm.getSystemProperty("sun.boot.class.path");
+    }
+
+    private String getUserDir() {
+        return vm.getSystemProperty("user.dir");
+    }
+
+    private JSMap      flagsCache;
+    private JSJavaHeap heapCache;
+    private JSMap      sysPropsCache;
+    private JSList     threadsCache;
+    private final JSJavaFactory factory;
+    private final VM vm;
+}