Mercurial > hg > truffle
diff agent/src/share/classes/sun/jvm/hotspot/utilities/soql/JSJavaVM.java @ 0:a61af66fc99e jdk7-b24
Initial load
author | duke |
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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; +}