| /******************************************************************************* |
| * Copyright (c) 2000, 2006 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.jdt.internal.debug.ui.display; |
| |
| |
| import com.ibm.icu.text.MessageFormat; |
| |
| import org.eclipse.core.runtime.PlatformObject; |
| import org.eclipse.debug.core.DebugEvent; |
| import org.eclipse.debug.core.DebugException; |
| import org.eclipse.debug.core.DebugPlugin; |
| import org.eclipse.debug.core.IDebugEventSetListener; |
| import org.eclipse.debug.core.ILaunch; |
| import org.eclipse.debug.core.model.IDebugElement; |
| import org.eclipse.debug.core.model.IDebugTarget; |
| import org.eclipse.debug.core.model.IErrorReportingExpression; |
| import org.eclipse.debug.core.model.IValue; |
| import org.eclipse.jdt.debug.core.IJavaValue; |
| import org.eclipse.jdt.debug.eval.IEvaluationResult; |
| |
| import com.sun.jdi.InvocationException; |
| |
| /** |
| * An implementation of an expression produced from the |
| * inspect action. An inspect expression removes |
| * itself from the expression manager when its debug |
| * target terminates. |
| */ |
| public class JavaInspectExpression extends PlatformObject implements IErrorReportingExpression, IDebugEventSetListener { |
| |
| /** |
| * The value of this expression |
| */ |
| private IJavaValue fValue; |
| |
| /** |
| * The code snippet for this expression. |
| */ |
| private String fExpression; |
| |
| private IEvaluationResult fResult; |
| |
| /** |
| * Constructs a new inspect result for the given |
| * expression and resulting value. Starts listening |
| * to debug events such that this element will remove |
| * itself from the expression manager when its debug |
| * target terminates. |
| * |
| * @param expression code snippet |
| * @param value value of the expression |
| */ |
| public JavaInspectExpression(String expression, IJavaValue value) { |
| fValue = value; |
| fExpression = expression; |
| DebugPlugin.getDefault().addDebugEventListener(this); |
| } |
| |
| /** |
| * Constructs a new inspect result for the given |
| * evaluation result, which provides a snippet, value, |
| * and error messages, if any. |
| * |
| * @param result the evaluation result |
| */ |
| public JavaInspectExpression(IEvaluationResult result) { |
| this(result.getSnippet(), result.getValue()); |
| fResult= result; |
| } |
| |
| /** |
| * @see IExpression#getExpressionText() |
| */ |
| public String getExpressionText() { |
| return fExpression; |
| } |
| |
| /** |
| * @see IExpression#getValue() |
| */ |
| public IValue getValue() { |
| return fValue; |
| } |
| |
| /** |
| * @see IDebugElement#getDebugTarget() |
| */ |
| public IDebugTarget getDebugTarget() { |
| IValue value= getValue(); |
| if (value != null) { |
| return getValue().getDebugTarget(); |
| } |
| if (fResult != null) { |
| return fResult.getThread().getDebugTarget(); |
| } |
| // An expression should never be created with a null value *and* |
| // a null result. |
| return null; |
| } |
| |
| /** |
| * @see IDebugElement#getModelIdentifier() |
| */ |
| public String getModelIdentifier() { |
| return getDebugTarget().getModelIdentifier(); |
| } |
| |
| /** |
| * @see IDebugElement#getLaunch() |
| */ |
| public ILaunch getLaunch() { |
| return getDebugTarget().getLaunch(); |
| } |
| |
| /** |
| * @see IDebugEventSetListener#handleDebugEvents(DebugEvent[]) |
| */ |
| public void handleDebugEvents(DebugEvent[] events) { |
| for (int i = 0; i < events.length; i++) { |
| DebugEvent event = events[i]; |
| switch (event.getKind()) { |
| case DebugEvent.TERMINATE: |
| if (event.getSource().equals(getDebugTarget())) { |
| DebugPlugin.getDefault().getExpressionManager().removeExpression(this); |
| } |
| break; |
| case DebugEvent.SUSPEND: |
| if (event.getDetail() != DebugEvent.EVALUATION_IMPLICIT) { |
| if (event.getSource() instanceof IDebugElement) { |
| IDebugElement source = (IDebugElement) event.getSource(); |
| if (source.getDebugTarget().equals(getDebugTarget())) { |
| DebugPlugin.getDefault().fireDebugEventSet(new DebugEvent[]{new DebugEvent(this, DebugEvent.CHANGE, DebugEvent.CONTENT)}); |
| } |
| } |
| } |
| break; |
| } |
| } |
| } |
| |
| /** |
| * @see IExpression#dispose() |
| */ |
| public void dispose() { |
| DebugPlugin.getDefault().removeDebugEventListener(this); |
| } |
| |
| /** |
| * @see org.eclipse.debug.core.model.IErrorReportingExpression#hasErrors() |
| */ |
| public boolean hasErrors() { |
| return fResult != null && fResult.hasErrors(); |
| } |
| |
| /** |
| * @see org.eclipse.debug.core.model.IErrorReportingExpression#getErrorMessages() |
| */ |
| public String[] getErrorMessages() { |
| return getErrorMessages(fResult); |
| } |
| |
| public static String[] getErrorMessages(IEvaluationResult result) { |
| if (result == null) { |
| return new String[0]; |
| } |
| String messages[]= result.getErrorMessages(); |
| if (messages.length > 0) { |
| return messages; |
| } |
| DebugException exception= result.getException(); |
| if (exception != null ) { |
| Throwable cause= exception.getStatus().getException(); |
| if (cause instanceof InvocationException) { |
| String nestedMessage= ((InvocationException) cause).exception().referenceType().name(); |
| return new String[] { MessageFormat.format(DisplayMessages.JavaInspectExpression_0, new String[] {nestedMessage}) }; |
| } |
| return new String[] { exception.getMessage() }; |
| } |
| return new String[0]; |
| } |
| } |