| /******************************************************************************* |
| * Copyright (c) 2000, 2012 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jdi.internal; |
| |
| import java.io.DataInputStream; |
| import java.io.IOException; |
| |
| import org.eclipse.jdi.internal.jdwp.JdwpCommandPacket; |
| import org.eclipse.jdi.internal.jdwp.JdwpID; |
| import org.eclipse.jdi.internal.jdwp.JdwpReplyPacket; |
| import org.eclipse.jdi.internal.jdwp.JdwpStringID; |
| |
| import com.sun.jdi.ObjectCollectedException; |
| import com.sun.jdi.StringReference; |
| |
| /** |
| * this class implements the corresponding interfaces declared by the JDI |
| * specification. See the com.sun.jdi package for more information. |
| * |
| */ |
| public class StringReferenceImpl extends ObjectReferenceImpl implements |
| StringReference { |
| /** JDWP Tag. */ |
| public static final byte tag = JdwpID.STRING_TAG; |
| |
| /** |
| * Creates new StringReferenceImpl. |
| */ |
| public StringReferenceImpl(VirtualMachineImpl vmImpl, JdwpStringID stringID) { |
| super("StringReference", vmImpl, stringID); //$NON-NLS-1$ |
| } |
| |
| /** |
| * @returns Value tag. |
| */ |
| @Override |
| public byte getTag() { |
| return tag; |
| } |
| |
| /** |
| * @returns Returns the StringReference as a String. |
| */ |
| public String value() { |
| // Note that this information should not be cached. |
| initJdwpRequest(); |
| try { |
| JdwpReplyPacket replyPacket = requestVM(JdwpCommandPacket.SR_VALUE, |
| this); |
| defaultReplyErrorHandler(replyPacket.errorCode()); |
| |
| DataInputStream replyData = replyPacket.dataInStream(); |
| String result = readString("value", replyData); //$NON-NLS-1$ |
| return result; |
| } catch (IOException e) { |
| defaultIOExceptionHandler(e); |
| return null; |
| } finally { |
| handledJdwpRequest(); |
| } |
| } |
| |
| /** |
| * @return Reads JDWP representation and returns new instance. |
| */ |
| public static StringReferenceImpl read(MirrorImpl target, DataInputStream in) |
| throws IOException { |
| VirtualMachineImpl vmImpl = target.virtualMachineImpl(); |
| JdwpStringID ID = new JdwpStringID(vmImpl); |
| ID.read(in); |
| if (target.fVerboseWriter != null) |
| target.fVerboseWriter.println("stringReference", ID.value()); //$NON-NLS-1$ |
| |
| if (ID.isNull()) |
| return null; |
| |
| StringReferenceImpl mirror = new StringReferenceImpl(vmImpl, ID); |
| return mirror; |
| } |
| |
| /** |
| * @return Returns description of Mirror object. |
| */ |
| @Override |
| public String toString() { |
| try { |
| return "\"" + value() + "\""; //$NON-NLS-1$ //$NON-NLS-2$ |
| } catch (ObjectCollectedException e) { |
| return JDIMessages.StringReferenceImpl__Garbage_Collected__StringReference__3 |
| + idString(); |
| } catch (Exception e) { |
| return fDescription; |
| } |
| } |
| } |