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jlechner |
/* ClassLoaderReferenceCommandSet.java -- class to implement the
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ClassLoaderReference Command Set
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Copyright (C) 2005 Free Software Foundation
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package gnu.classpath.jdwp.processor;
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import gnu.classpath.jdwp.JdwpConstants;
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import gnu.classpath.jdwp.VMVirtualMachine;
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import gnu.classpath.jdwp.exception.JdwpException;
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import gnu.classpath.jdwp.exception.JdwpInternalErrorException;
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import gnu.classpath.jdwp.exception.NotImplementedException;
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import gnu.classpath.jdwp.id.ObjectId;
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import gnu.classpath.jdwp.id.ReferenceTypeId;
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import java.io.DataOutputStream;
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import java.io.IOException;
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import java.nio.ByteBuffer;
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import java.util.ArrayList;
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import java.util.Iterator;
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/**
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* A class representing the ClassLoaderReference Command Set.
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*
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* @author Aaron Luchko <aluchko@redhat.com>
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*/
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public class ClassLoaderReferenceCommandSet
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extends CommandSet
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{
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public boolean runCommand(ByteBuffer bb, DataOutputStream os, byte command)
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throws JdwpException
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{
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// Although there's only a single command to choose from we still use
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// a switch to maintain consistency with the rest of the CommandSets
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try
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{
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switch (command)
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{
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case JdwpConstants.CommandSet.ClassLoaderReference.VISIBLE_CLASSES:
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executeVisibleClasses(bb, os);
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break;
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default:
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throw new NotImplementedException("Command " + command +
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" not found in ClassLoaderReference Command Set.");
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}
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}
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catch (IOException ex)
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{
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// The DataOutputStream we're using isn't talking to a socket at all
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// So if we throw an IOException we're in serious trouble
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throw new JdwpInternalErrorException(ex);
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}
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return false;
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}
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public void executeVisibleClasses(ByteBuffer bb, DataOutputStream os)
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throws JdwpException, IOException
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{
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ObjectId oId = idMan.readObjectId(bb);
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ClassLoader cl = (ClassLoader) oId.getObject();
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ArrayList loadRequests = VMVirtualMachine.getLoadRequests(cl);
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os.writeInt(loadRequests.size());
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for (Iterator iter = loadRequests.iterator(); iter.hasNext();)
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{
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Class clazz = (Class)iter.next();
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ReferenceTypeId refId = idMan.getReferenceTypeId(clazz);
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refId.writeTagged(os);
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}
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}
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}
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