--- /dev/null 2005-06-09 16:29:11.371620296 -0400 +++ gnu/classpath/jdwp/processor/ClassLoaderReferenceCommandSet.java 2005-08-08 14:35:35.000000000 -0400 @@ -0,0 +1,114 @@ +/* ClassLoaderReferenceCommandSet.java -- class to implement the + ClassLoaderReference Command Set + Copyright (C) 2005 Free Software Foundation + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath 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 for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA +02111-1307 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + + +package gnu.classpath.jdwp.processor; + +import gnu.classpath.jdwp.IVirtualMachine; +import gnu.classpath.jdwp.Jdwp; +import gnu.classpath.jdwp.JdwpConstants; +import gnu.classpath.jdwp.exception.JdwpException; +import gnu.classpath.jdwp.exception.JdwpInternalErrorException; +import gnu.classpath.jdwp.exception.NotImplementedException; +import gnu.classpath.jdwp.id.IdManager; +import gnu.classpath.jdwp.id.ObjectId; +import gnu.classpath.jdwp.id.ReferenceTypeId; + +import java.io.DataOutputStream; +import java.io.IOException; +import java.nio.ByteBuffer; +import java.util.ArrayList; +import java.util.Iterator; + +/** + * A class representing the ClassLoaderReference Command Set. + * + * @author Aaron Luchko + */ +public class ClassLoaderReferenceCommandSet implements CommandSet +{ + // Our hook into the jvm + private final IVirtualMachine vm = Jdwp.getIVirtualMachine(); + + // Manages all the different ids that are assigned by jdwp + private final IdManager idMan = Jdwp.getIdManager(); + + public boolean runCommand(ByteBuffer bb, DataOutputStream os, byte command) + throws JdwpException + { + + // Although there's only a single command to choose from we still use + // a switch to maintain consistency with the rest of the CommandSets + try + { + switch (command) + { + case JdwpConstants.CommandSet.ClassLoaderReference.VISIBLE_CLASSES: + executeVisibleClasses(bb, os); + break; + default: + throw new NotImplementedException("Command " + command + + " not found in ClassLoaderReference Command Set."); + } + } + catch (IOException ex) + { + // The DataOutputStream we're using isn't talking to a socket at all + // So if we throw an IOException we're in serious trouble + throw new JdwpInternalErrorException(ex); + } + return true; + } + + public void executeVisibleClasses(ByteBuffer bb, DataOutputStream os) + throws JdwpException, IOException + { + ObjectId oId = idMan.readId(bb); + ClassLoader cl = (ClassLoader) oId.getObject(); + ArrayList loadRequests = vm.getLoadRequests(cl); + os.writeInt(loadRequests.size()); + for (Iterator iter = loadRequests.iterator(); iter.hasNext();) + { + Class clazz = (Class)iter.next(); + ReferenceTypeId refId = idMan.getReferenceTypeId(clazz); + refId.writeTagged(os); + } + } + +}