Frames | No Frames |
1: /* ArrayTypeCommandSet.java -- class to implement the ArrayType 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.exception.JdwpException; 43: import gnu.classpath.jdwp.exception.JdwpInternalErrorException; 44: import gnu.classpath.jdwp.exception.NotImplementedException; 45: import gnu.classpath.jdwp.id.ObjectId; 46: import gnu.classpath.jdwp.id.ReferenceTypeId; 47: 48: import java.io.DataOutputStream; 49: import java.io.IOException; 50: import java.lang.reflect.Array; 51: import java.nio.ByteBuffer; 52: 53: /** 54: * A class representing the ArrayType Command Set. 55: * 56: * @author Aaron Luchko <aluchko@redhat.com> 57: */ 58: public class ArrayTypeCommandSet 59: extends CommandSet 60: { 61: public boolean runCommand(ByteBuffer bb, DataOutputStream os, byte command) 62: throws JdwpException 63: { 64: 65: // Although there's only a single command to choose from we still use 66: // a switch to maintain consistency with the rest of the CommandSets 67: try 68: { 69: switch (command) 70: { 71: case JdwpConstants.CommandSet.ArrayType.NEW_INSTANCE: 72: executeNewInstance(bb, os); 73: break; 74: default: 75: throw new NotImplementedException("Command " + command + 76: " not found in ArrayType Command Set."); 77: } 78: } 79: catch (IOException ex) 80: { 81: // The DataOutputStream we're using isn't talking to a socket at all 82: // So if we throw an IOException we're in serious trouble 83: throw new JdwpInternalErrorException(ex); 84: } 85: 86: return false; 87: } 88: 89: public void executeNewInstance(ByteBuffer bb, DataOutputStream os) 90: throws JdwpException, IOException 91: { 92: ReferenceTypeId refId = idMan.readReferenceTypeId(bb); 93: Class arrayType = refId.getType(); 94: Class componentType = arrayType.getComponentType(); 95: 96: int length = bb.getInt(); 97: Object newArray = Array.newInstance(componentType, length); 98: ObjectId oid = idMan.getObjectId(newArray); 99: 100: // Since this array isn't referenced anywhere we'll disable garbage 101: // collection on it so it's still around when the debugger gets back to it. 102: oid.disableCollection(); 103: oid.writeTagged(os); 104: } 105: }