| /******************************************************************************* |
| * Copyright (c) 2009 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.e4.languages.javascript.jsdi.rhino; |
| |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.eclipse.e4.languages.javascript.debug.connect.DebugSession; |
| import org.eclipse.e4.languages.javascript.debug.connect.DisconnectException; |
| import org.eclipse.e4.languages.javascript.debug.connect.EventPacket; |
| import org.eclipse.e4.languages.javascript.debug.connect.JSONConstants; |
| import org.eclipse.e4.languages.javascript.debug.connect.Request; |
| import org.eclipse.e4.languages.javascript.debug.connect.Response; |
| import org.eclipse.e4.languages.javascript.debug.connect.TimeoutException; |
| import org.eclipse.e4.languages.javascript.jsdi.BooleanValue; |
| import org.eclipse.e4.languages.javascript.jsdi.NullValue; |
| import org.eclipse.e4.languages.javascript.jsdi.NumberValue; |
| import org.eclipse.e4.languages.javascript.jsdi.StringValue; |
| import org.eclipse.e4.languages.javascript.jsdi.UndefinedValue; |
| import org.eclipse.e4.languages.javascript.jsdi.VirtualMachine; |
| import org.eclipse.e4.languages.javascript.jsdi.event.EventQueue; |
| import org.eclipse.e4.languages.javascript.jsdi.request.EventRequestManager; |
| import org.eclipse.e4.languages.javascript.jsdi.rhino.event.EventQueueImpl; |
| import org.eclipse.e4.languages.javascript.jsdi.rhino.request.EventRequestManagerImpl; |
| |
| /** |
| * Rhino implementation of {@link VirtualMachine} |
| * |
| * @since 1.0 |
| */ |
| public class VirtualMachineImpl implements VirtualMachine { |
| |
| public final UndefinedValueImpl undefinedValue = new UndefinedValueImpl(this); |
| public final NullValueImpl nullValue = new NullValueImpl(this); |
| |
| private final Map scripts = new HashMap(); |
| private final DebugSession session; |
| private EventRequestManagerImpl eventRequestManager = new EventRequestManagerImpl(this); |
| private final EventQueue eventQueue = new EventQueueImpl(this, eventRequestManager); |
| private Map threads = new HashMap(); |
| private boolean disconnected = false; |
| |
| /** |
| * Constructor |
| * |
| * @param debugSession |
| */ |
| public VirtualMachineImpl(DebugSession debugSession) { |
| this.session = debugSession; |
| initalizeScripts(); |
| } |
| |
| /** |
| * |
| */ |
| private void initalizeScripts() { |
| Request request = new Request(JSONConstants.SCRIPTS); |
| try { |
| Response response = sendRequest(request); |
| List scriptIds = (List) response.getBody().get(JSONConstants.SCRIPTS); |
| |
| for (Iterator iterator = scriptIds.iterator(); iterator.hasNext();) { |
| Long scriptId = new Long(((Number) iterator.next()).longValue()); |
| ScriptReferenceImpl script = createScriptReference(scriptId); |
| scripts.put(scriptId, script); |
| } |
| } catch (DisconnectException e) { |
| e.printStackTrace(); |
| } catch (TimeoutException e) { |
| e.printStackTrace(); |
| } |
| } |
| |
| /** |
| * @param scriptId |
| * @return |
| */ |
| private ScriptReferenceImpl createScriptReference(Long scriptId) { |
| Request request = new Request(JSONConstants.SCRIPT); |
| request.getArguments().put(JSONConstants.SCRIPT_ID, scriptId); |
| try { |
| Response response = sendRequest(request, 30000); |
| Map jsonScript = (Map) response.getBody().get(JSONConstants.SCRIPT); |
| return new ScriptReferenceImpl(this, jsonScript); |
| } catch (DisconnectException e) { |
| e.printStackTrace(); |
| } catch (TimeoutException e) { |
| e.printStackTrace(); |
| } |
| return null; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.e4.languages.javascript.jsdi.VirtualMachine#allScripts() |
| */ |
| public synchronized List allScripts() { |
| return new ArrayList(scripts.values()); |
| } |
| |
| /** |
| * @param scriptId |
| * @param script |
| */ |
| public synchronized ScriptReferenceImpl addScript(Long scriptId) { |
| ScriptReferenceImpl script = (ScriptReferenceImpl) scripts.get(scriptId); |
| if (script != null) |
| return script; |
| |
| script = createScriptReference(scriptId); |
| if (script != null) |
| scripts.put(scriptId, script); |
| return script; |
| } |
| |
| /** |
| * @param scriptId |
| * @return |
| */ |
| public synchronized ScriptReferenceImpl getScript(Long scriptId) { |
| return (ScriptReferenceImpl) scripts.get(scriptId); |
| } |
| |
| /** |
| * @param timeout |
| * @return |
| * @throws TimeoutException |
| * @throws DisconnectException |
| */ |
| public EventPacket receiveEvent(int timeout) throws TimeoutException, DisconnectException { |
| return session.receiveEvent(timeout); |
| } |
| |
| /** |
| * Sends a request to the backing {@link DebugSession} |
| * |
| * @param request |
| * @param timeout |
| * @return the {@link Response} for the request |
| * @throws TimeoutException |
| * @throws DisconnectException |
| */ |
| public Response sendRequest(Request request, int timeout) throws TimeoutException, DisconnectException { |
| session.sendRequest(request); |
| return session.receiveResponse(request.getSequence(), timeout); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.e4.languages.javascript.jsdi.VirtualMachine#sendRequest(org .eclipse.e4.languages.javascript.debug.connect.Request) |
| */ |
| public Response sendRequest(Request request) throws TimeoutException, DisconnectException { |
| return sendRequest(request, 30000); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.e4.languages.javascript.jsdi.VirtualMachine#allThreads() |
| */ |
| public synchronized List allThreads() { |
| Request request = new Request(JSONConstants.THREADS); |
| try { |
| Response response = sendRequest(request); |
| List threadIds = (List) response.getBody().get(JSONConstants.THREADS); |
| HashMap allThreads = new HashMap(threadIds.size()); |
| for (Iterator iterator = threadIds.iterator(); iterator.hasNext();) { |
| Long threadId = new Long(((Number) iterator.next()).longValue()); |
| ThreadReferenceImpl thread = (ThreadReferenceImpl) threads.get(threadId); |
| if (thread == null) { |
| thread = createThreadReference(threadId); |
| } |
| allThreads.put(threadId, thread); |
| } |
| threads = allThreads; |
| } catch (DisconnectException e) { |
| disconnectVM(); |
| } catch (TimeoutException e) { |
| e.printStackTrace(); |
| } |
| return new ArrayList(threads.values()); |
| } |
| |
| public synchronized ThreadReferenceImpl addThread(Long threadId) { |
| ThreadReferenceImpl thread = (ThreadReferenceImpl) threads.get(threadId); |
| if (thread != null) |
| return thread; |
| |
| thread = createThreadReference(threadId); |
| if (thread != null) |
| threads.put(threadId, thread); |
| return thread; |
| } |
| |
| public synchronized ThreadReferenceImpl removeThread(Long threadId) { |
| return (ThreadReferenceImpl) threads.remove(threadId); |
| } |
| |
| /** |
| * @param threadId |
| * @return |
| */ |
| private ThreadReferenceImpl createThreadReference(Long threadId) { |
| Request request = new Request(JSONConstants.THREAD); |
| request.getArguments().put(JSONConstants.THREAD_ID, threadId); |
| try { |
| Response response = sendRequest(request, 30000); |
| Map jsonThread = (Map) response.getBody().get(JSONConstants.THREAD); |
| if (jsonThread == null) |
| return ThreadReferenceImpl.zombie(this, threadId); |
| return new ThreadReferenceImpl(this, jsonThread); |
| } catch (DisconnectException e) { |
| disconnectVM(); |
| } catch (TimeoutException e) { |
| e.printStackTrace(); |
| } |
| return null; |
| } |
| |
| /** |
| * @param threadId |
| * @return |
| */ |
| public synchronized ThreadReferenceImpl getThread(Long threadId) { |
| ThreadReferenceImpl thread = (ThreadReferenceImpl) threads.get(threadId); |
| if (thread == null) { |
| thread = createThreadReference(threadId); |
| if (thread != null) |
| threads.put(threadId, thread); |
| } |
| return thread; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.e4.languages.javascript.jsdi.VirtualMachine#description() |
| */ |
| public String description() { |
| Request request = new Request(JSONConstants.VERSION); |
| try { |
| Response response = sendRequest(request); |
| StringBuffer buffer = new StringBuffer(); |
| buffer.append((String) response.getBody().get(JSONConstants.VM_VENDOR)).append(JSONConstants.SPACE); |
| buffer.append(response.getBody().get(JSONConstants.VM_NAME)).append(JSONConstants.SPACE); |
| buffer.append(response.getBody().get(JSONConstants.VM_VERSION)); |
| return buffer.toString(); |
| } catch (DisconnectException e) { |
| disconnectVM(); |
| } catch (TimeoutException e) { |
| e.printStackTrace(); |
| } |
| return null; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.e4.languages.javascript.jsdi.VirtualMachine#dispose() |
| */ |
| public void dispose() { |
| Request request = new Request(JSONConstants.DISPOSE); |
| try { |
| sendRequest(request); |
| } catch (DisconnectException e) { |
| disconnectVM(); |
| } catch (TimeoutException e) { |
| e.printStackTrace(); |
| } finally { |
| disconnectVM(); |
| this.eventRequestManager.createVMDeathRequest(); |
| } |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.e4.languages.javascript.jsdi.VirtualMachine#name() |
| */ |
| public String name() { |
| Request request = new Request(JSONConstants.VERSION); |
| try { |
| Response response = sendRequest(request); |
| return (String) response.getBody().get(JSONConstants.VM_NAME); |
| } catch (DisconnectException e) { |
| disconnectVM(); |
| } catch (TimeoutException e) { |
| e.printStackTrace(); |
| } |
| return null; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.e4.languages.javascript.jsdi.VirtualMachine#resume() |
| */ |
| public void resume() { |
| Request request = new Request(JSONConstants.CONTINUE); |
| try { |
| sendRequest(request); |
| } catch (DisconnectException e) { |
| disconnectVM(); |
| } catch (TimeoutException e) { |
| e.printStackTrace(); |
| } |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.e4.languages.javascript.jsdi.VirtualMachine#suspend() |
| */ |
| public void suspend() { |
| Request request = new Request(JSONConstants.SUSPEND); |
| try { |
| sendRequest(request); |
| } catch (DisconnectException e) { |
| disconnectVM(); |
| } catch (TimeoutException e) { |
| e.printStackTrace(); |
| } |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.e4.languages.javascript.jsdi.VirtualMachine#terminate() |
| */ |
| public void terminate() { |
| dispose(); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.e4.languages.javascript.jsdi.VirtualMachine#version() |
| */ |
| public String version() { |
| Request request = new Request(JSONConstants.VERSION); |
| try { |
| Response response = sendRequest(request); |
| return (String) response.getBody().get(JSONConstants.VM_VERSION); |
| } catch (DisconnectException e) { |
| disconnectVM(); |
| } catch (TimeoutException e) { |
| e.printStackTrace(); |
| } |
| return null; |
| } |
| |
| /** |
| * disconnects the VM and creates the correct requests |
| */ |
| public void disconnectVM() { |
| if (this.disconnected) { |
| // no-op it is already disconnected |
| return; |
| } |
| try { |
| this.session.dispose(); |
| this.eventRequestManager.createVMDisconnectRequest(); |
| } finally { |
| this.disconnected = true; |
| } |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.e4.languages.javascript.jsdi.VirtualMachine#mirrorOf(boolean) |
| */ |
| public BooleanValue mirrorOf(boolean bool) { |
| return new BooleanValueImpl(this, Boolean.valueOf(bool)); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.e4.languages.javascript.jsdi.VirtualMachine#mirrorOf(int) |
| */ |
| public NumberValue mirrorOf(Number number) { |
| return new NumberValueImpl(this, number); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.e4.languages.javascript.jsdi.VirtualMachine#mirrorOf(java .lang.String) |
| */ |
| public StringValue mirrorOf(String string) { |
| return new StringValueImpl(this, string); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.e4.languages.javascript.jsdi.VirtualMachine#mirrorOfNull() |
| */ |
| public NullValue mirrorOfNull() { |
| return nullValue; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.e4.languages.javascript.jsdi.VirtualMachine#mirrorOfUndefined () |
| */ |
| public UndefinedValue mirrorOfUndefined() { |
| return undefinedValue; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.e4.languages.javascript.jsdi.VirtualMachine#eventRequestManager () |
| */ |
| public EventRequestManager eventRequestManager() { |
| return eventRequestManager; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.e4.languages.javascript.jsdi.VirtualMachine#eventQueue() |
| */ |
| public EventQueue eventQueue() { |
| return eventQueue; |
| } |
| |
| public ScriptReferenceImpl script(Long scriptId) { |
| return (ScriptReferenceImpl) scripts.get(scriptId); |
| } |
| } |