1 /* MethodCommandSet.java -- class to implement the Method Command Set 2 Copyright (C) 2005 Free Software Foundation 3 4 This file is part of GNU Classpath. 5 6 GNU Classpath is free software; you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation; either version 2, or (at your option) 9 any later version. 10 11 GNU Classpath is distributed in the hope that it will be useful, but 12 WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 General Public License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with GNU Classpath; see the file COPYING. If not, write to the 18 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 19 02110-1301 USA. 20 21 Linking this library statically or dynamically with other modules is 22 making a combined work based on this library. Thus, the terms and 23 conditions of the GNU General Public License cover the whole 24 combination. 25 26 As a special exception, the copyright holders of this library give you 27 permission to link this library with independent modules to produce an 28 executable, regardless of the license terms of these independent 29 modules, and to copy and distribute the resulting executable under 30 terms of your choice, provided that you also meet, for each linked 31 independent module, the terms and conditions of the license of that 32 module. An independent module is a module which is not derived from 33 or based on this library. If you modify this library, you may extend 34 this exception to your version of the library, but you are not 35 obligated to do so. If you do not wish to do so, delete this 36 exception statement from your version. */ 37 38 39 package gnu.classpath.jdwp.processor; 40 41 import gnu.classpath.jdwp.JdwpConstants; 42 import gnu.classpath.jdwp.VMVirtualMachine; 43 import gnu.classpath.jdwp.exception.JdwpException; 44 import gnu.classpath.jdwp.exception.JdwpInternalErrorException; 45 import gnu.classpath.jdwp.exception.NotImplementedException; 46 import gnu.classpath.jdwp.id.ObjectId; 47 import gnu.classpath.jdwp.id.ReferenceTypeId; 48 import gnu.classpath.jdwp.util.LineTable; 49 import gnu.classpath.jdwp.util.VariableTable; 50 51 import java.io.DataOutputStream; 52 import java.io.IOException; 53 import java.lang.reflect.Method; 54 import java.nio.ByteBuffer; 55 56 /** 57 * A class representing the Method Command Set. 58 * 59 * @author Aaron Luchko <aluchko@redhat.com> 60 */ 61 public class MethodCommandSet 62 extends CommandSet 63 { runCommand(ByteBuffer bb, DataOutputStream os, byte command)64 public boolean runCommand(ByteBuffer bb, DataOutputStream os, byte command) 65 throws JdwpException 66 { 67 try 68 { 69 switch (command) 70 { 71 case JdwpConstants.CommandSet.Method.LINE_TABLE: 72 executeLineTable(bb, os); 73 break; 74 case JdwpConstants.CommandSet.Method.VARIABLE_TABLE: 75 executeVariableTable(bb, os); 76 break; 77 case JdwpConstants.CommandSet.Method.BYTE_CODES: 78 executeByteCodes(bb, os); 79 break; 80 case JdwpConstants.CommandSet.Method.IS_OBSOLETE: 81 executeIsObsolete(bb, os); 82 break; 83 case JdwpConstants.CommandSet.Method.VARIABLE_TABLE_WITH_GENERIC: 84 executeVariableTableWithGeneric(bb, os); 85 break; 86 default: 87 throw new NotImplementedException( 88 "Command " + command + " not found in Method Command Set."); 89 } 90 } 91 catch (IOException ex) 92 { 93 // The DataOutputStream we're using isn't talking to a socket at all 94 // So if we throw an IOException we're in serious trouble 95 throw new JdwpInternalErrorException(ex); 96 } 97 98 return false; 99 } 100 executeLineTable(ByteBuffer bb, DataOutputStream os)101 private void executeLineTable(ByteBuffer bb, DataOutputStream os) 102 throws JdwpException, IOException 103 { 104 ReferenceTypeId refId = idMan.readReferenceTypeId(bb); 105 Class clazz = refId.getType(); 106 107 ObjectId oid = idMan.readObjectId(bb); 108 Method method = (Method) oid.getObject(); 109 110 LineTable lt = VMVirtualMachine.getLineTable(clazz, method); 111 lt.write(os); 112 } 113 executeVariableTable(ByteBuffer bb, DataOutputStream os)114 private void executeVariableTable(ByteBuffer bb, DataOutputStream os) 115 throws JdwpException, IOException 116 { 117 ReferenceTypeId refId = idMan.readReferenceTypeId(bb); 118 Class clazz = refId.getType(); 119 120 ObjectId oid = idMan.readObjectId(bb); 121 Method method = (Method) oid.getObject(); 122 123 VariableTable vt = VMVirtualMachine.getVarTable(clazz, method); 124 vt.write(os); 125 } 126 executeByteCodes(ByteBuffer bb, DataOutputStream os)127 private void executeByteCodes(ByteBuffer bb, DataOutputStream os) 128 throws JdwpException 129 { 130 // This command is optional, determined by VirtualMachines CapabilitiesNew 131 // so we'll leave it till later to implement 132 throw new NotImplementedException("Command ByteCodes not implemented."); 133 } 134 executeIsObsolete(ByteBuffer bb, DataOutputStream os)135 private void executeIsObsolete(ByteBuffer bb, DataOutputStream os) 136 throws IOException 137 { 138 // The debugger is really asking if this method has been redefined using 139 // VirtualMachineCommandSet.RedefineClasses. Since we don't implement that 140 // command the answer to this will always be false. 141 os.writeBoolean(false); 142 } 143 executeVariableTableWithGeneric(ByteBuffer bb, DataOutputStream os)144 private void executeVariableTableWithGeneric(ByteBuffer bb, 145 DataOutputStream os) 146 throws JdwpException 147 { 148 // We don't have generics yet 149 throw new NotImplementedException( 150 "Command SourceDebugExtension not implemented."); 151 } 152 153 } 154