Mercurial > hg > truffle
diff agent/src/share/classes/sun/jvm/hotspot/tools/soql/SOQL.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/tools/soql/SOQL.java Sat Dec 01 00:00:00 2007 +0000 @@ -0,0 +1,218 @@ +/* + * Copyright 2003-2007 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.tools.soql; + +import java.io.*; +import java.util.*; +import sun.jvm.hotspot.debugger.*; +import sun.jvm.hotspot.oops.*; +import sun.jvm.hotspot.runtime.*; +import sun.jvm.hotspot.tools.*; +import sun.jvm.hotspot.utilities.*; +import sun.jvm.hotspot.utilities.soql.*; + +/** + This is command line SOQL (Simple Object Query Language) interpreter. +*/ + +public class SOQL extends Tool { + public static void main(String[] args) { + SOQL soql = new SOQL(); + soql.start(args); + soql.stop(); + } + + protected SOQLEngine soqlEngine; + protected BufferedReader in = new BufferedReader(new InputStreamReader(System.in)); + protected PrintStream out = System.out; + static protected String prompt = "soql> "; + static protected String secondPrompt = "> "; + + public void run() { + soqlEngine = SOQLEngine.getEngine(); + while (true) { + try { + out.print(prompt); + String line = in.readLine(); + if (line == null) { + return; + } + StringTokenizer st = new StringTokenizer(line); + if (st.hasMoreTokens()) { + String cmd = st.nextToken(); + if (cmd.equals("select")) { + handleSelect(line); + } else if (cmd.equals("classes")) { + handleClasses(line); + } else if (cmd.equals("class")) { + handleClass(line); + } else if (cmd.equals("object")) { + handleObject(line); + } else if (cmd.equals("quit")) { + out.println("Bye!"); + return; + } else if (cmd.equals("")) { + // do nothing ... + } else { + handleUnknown(line); + } + } + } catch (IOException e) { + e.printStackTrace(); + return; + } + } + } + + protected void handleSelect(String query) { + StringBuffer buf = new StringBuffer(query); + String tmp = null; + while (true) { + out.print(secondPrompt); + try { + tmp = in.readLine(); + } catch (IOException ioe) { + break; + } + if (tmp.equals("") || tmp.equals("go")) + break; + buf.append('\n'); + buf.append(tmp); + } + query = buf.toString(); + + try { + soqlEngine.executeQuery(query, + new ObjectVisitor() { + public void visit(Object o) { + if (o != null && o instanceof JSJavaObject) { + String oopAddr = ((JSJavaObject)o).getOop().getHandle().toString(); + out.println(oopAddr); + } else { + out.println((o == null)? "null" : o.toString()); + } + } + }); + } catch (SOQLException se) { + se.printStackTrace(); + } + } + + protected void handleClasses(String line) { + // just list all InstanceKlasses + InstanceKlass[] klasses = SystemDictionaryHelper.getAllInstanceKlasses(); + for (int i = 0; i < klasses.length; i++) { + out.print(klasses[i].getName().asString().replace('/', '.')); + out.print(" @"); + out.println(klasses[i].getHandle()); + } + } + + protected void handleClass(String line) { + StringTokenizer st = new StringTokenizer(line); + st.nextToken(); // ignore "class" + if (st.hasMoreTokens()) { + String className = st.nextToken(); + InstanceKlass klass = SystemDictionaryHelper.findInstanceKlass(className); + if (klass == null) { + out.println("class " + className + " not found"); + } else { + // klass.iterate(new OopPrinter(out), true); + + // base class + InstanceKlass base = (InstanceKlass) klass.getSuper(); + if (base != null) { + out.println("super"); + out.print("\t"); + out.println(base.getName().asString().replace('/', '.')); + } + + // list immediate fields only + TypeArray fields = klass.getFields(); + int numFields = (int) fields.getLength(); + ConstantPool cp = klass.getConstants(); + out.println("fields"); + if (numFields != 0) { + for (int f = 0; f < numFields; f += InstanceKlass.NEXT_OFFSET) { + int nameIndex = fields.getShortAt(f + InstanceKlass.NAME_INDEX_OFFSET); + int sigIndex = fields.getShortAt(f + InstanceKlass.SIGNATURE_INDEX_OFFSET); + Symbol f_name = cp.getSymbolAt(nameIndex); + Symbol f_sig = cp.getSymbolAt(sigIndex); + StringBuffer sigBuf = new StringBuffer(); + new SignatureConverter(f_sig, sigBuf).dispatchField(); + out.print('\t'); + out.print(sigBuf.toString().replace('/', '.')); + out.print(' '); + out.println(f_name.asString()); + } + } else { + out.println("\tno fields in this class"); + } + } + } else { + out.println("usage: class <name of the class>"); + } + } + + protected Oop getOopAtAddress(Address addr) { + OopHandle oopHandle = addr.addOffsetToAsOopHandle(0); + return VM.getVM().getObjectHeap().newOop(oopHandle); + } + + protected void handleObject(String line) { + StringTokenizer st = new StringTokenizer(line); + st.nextToken(); // ignore "object" + if (st.hasMoreTokens()) { + String addrStr = st.nextToken(); + Address addr = null; + Debugger dbg = VM.getVM().getDebugger(); + try { + addr = dbg.parseAddress(addrStr); + } catch (Exception e) { + out.println("invalid address : " + e.getMessage()); + return; + } + + Oop oop = null; + try { + oop = getOopAtAddress(addr); + } catch (Exception e) { + out.println("invalid object : " + e.getMessage()); + } + + if (oop != null) { + oop.iterate(new OopPrinter(out), true); + } else { + out.println("null object!"); + } + } else { + out.println("usage: object <address>"); + } + } + + protected void handleUnknown(String line) { + out.println("Unknown command!"); + } +}