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Diffstat (limited to 'gcc-4.4.3/libjava/classpath/gnu/classpath/jdwp/processor/MethodCommandSet.java')
| -rw-r--r-- | gcc-4.4.3/libjava/classpath/gnu/classpath/jdwp/processor/MethodCommandSet.java | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/gcc-4.4.3/libjava/classpath/gnu/classpath/jdwp/processor/MethodCommandSet.java b/gcc-4.4.3/libjava/classpath/gnu/classpath/jdwp/processor/MethodCommandSet.java new file mode 100644 index 000000000..4d1bf7098 --- /dev/null +++ b/gcc-4.4.3/libjava/classpath/gnu/classpath/jdwp/processor/MethodCommandSet.java @@ -0,0 +1,157 @@ +/* MethodCommandSet.java -- class to implement the Method Command Set + Copyright (C) 2005, 2006, 2007 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., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 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 +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.JdwpConstants; +import gnu.classpath.jdwp.VMMethod; +import gnu.classpath.jdwp.VMVirtualMachine; +import gnu.classpath.jdwp.exception.JdwpException; +import gnu.classpath.jdwp.exception.JdwpInternalErrorException; +import gnu.classpath.jdwp.exception.NotImplementedException; +import gnu.classpath.jdwp.id.ReferenceTypeId; +import gnu.classpath.jdwp.util.LineTable; +import gnu.classpath.jdwp.util.VariableTable; + +import java.io.DataOutputStream; +import java.io.IOException; +import java.nio.ByteBuffer; + +/** + * A class representing the Method Command Set. + * + * @author Aaron Luchko <aluchko@redhat.com> + */ +public class MethodCommandSet + extends CommandSet +{ + public boolean runCommand(ByteBuffer bb, DataOutputStream os, byte command) + throws JdwpException + { + try + { + switch (command) + { + case JdwpConstants.CommandSet.Method.LINE_TABLE: + executeLineTable(bb, os); + break; + case JdwpConstants.CommandSet.Method.VARIABLE_TABLE: + executeVariableTable(bb, os); + break; + case JdwpConstants.CommandSet.Method.BYTE_CODES: + executeByteCodes(bb, os); + break; + case JdwpConstants.CommandSet.Method.IS_OBSOLETE: + executeIsObsolete(bb, os); + break; + case JdwpConstants.CommandSet.Method.VARIABLE_TABLE_WITH_GENERIC: + executeVariableTableWithGeneric(bb, os); + break; + default: + throw new NotImplementedException( + "Command " + command + " not found in Method 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 false; + } + + private void executeLineTable(ByteBuffer bb, DataOutputStream os) + throws JdwpException, IOException + { + ReferenceTypeId refId = idMan.readReferenceTypeId(bb); + Class clazz = refId.getType(); + + VMMethod method = VMMethod.readId(clazz, bb); + LineTable lt = method.getLineTable(); + lt.write(os); + } + + private void executeVariableTable(ByteBuffer bb, DataOutputStream os) + throws JdwpException, IOException + { + ReferenceTypeId refId = idMan.readReferenceTypeId(bb); + Class clazz = refId.getType(); + + VMMethod method = VMMethod.readId(clazz, bb); + VariableTable vt = method.getVariableTable(); + vt.write(os); + } + + private void executeByteCodes(ByteBuffer bb, DataOutputStream os) + throws JdwpException, IOException + { + if (!VMVirtualMachine.canGetBytecodes) + { + String msg = "getting bytecodes is unsupported"; + throw new NotImplementedException(msg); + } + + ReferenceTypeId id = idMan.readReferenceTypeId(bb); + Class klass = id.getType(); + VMMethod method = VMMethod.readId(klass, bb); + byte[] bytecode = VMVirtualMachine.getBytecodes(method); + os.writeInt(bytecode.length); + os.write(bytecode); + } + + private void executeIsObsolete(ByteBuffer bb, DataOutputStream os) + throws IOException + { + // The debugger is really asking if this method has been redefined using + // VirtualMachineCommandSet.RedefineClasses. Since we don't implement that + // command the answer to this will always be false. + os.writeBoolean(false); + } + + private void executeVariableTableWithGeneric(ByteBuffer bb, + DataOutputStream os) + throws JdwpException + { + // We don't have generics yet + throw new NotImplementedException( + "Command VariableTableWithGeneric not implemented."); + } + +} |