| /* |
| * Copyright (c) 2003, 2013, 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. |
| * |
| * 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.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.execute(args); |
| } |
| |
| public SOQL() { |
| super(); |
| } |
| |
| public SOQL(JVMDebugger d) { |
| super(d); |
| } |
| |
| 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].getAddress()); |
| } |
| } |
| |
| 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 |
| U2Array fields = klass.getFields(); |
| int numFields = (int) fields.length(); |
| ConstantPool cp = klass.getConstants(); |
| out.println("fields"); |
| if (numFields != 0) { |
| for (int f = 0; f < numFields; f++){ |
| Symbol f_name = klass.getFieldName(f); |
| Symbol f_sig = klass.getFieldSignature(f); |
| 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!"); |
| } |
| } |