| /* |
| * Copyright 2000-2010 JetBrains s.r.o. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package com.intellij.util.continuation; |
| |
| import com.intellij.openapi.progress.ProcessCanceledException; |
| import com.intellij.openapi.progress.ProgressIndicator; |
| import com.intellij.openapi.progress.ProgressManager; |
| import com.intellij.openapi.progress.Task; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| public abstract class TaskDescriptor { |
| // this also means that it would be called in case of chain cancel() |
| private boolean myHaveMagicCure; |
| private final String myName; |
| @NotNull |
| private final Where myWhere; |
| private final Map<Object, Object> mySurviveKit; |
| |
| public TaskDescriptor(final String name, @NotNull final Where where) { |
| myName = name; |
| myWhere = where; |
| mySurviveKit = new HashMap<Object, Object>(); |
| } |
| |
| public abstract void run(final ContinuationContext context); |
| |
| public final void addCure(final Object disaster, final Object cure) { |
| mySurviveKit.put(disaster, cure); |
| } |
| @Nullable |
| public final Object hasCure(final Object disaster) { |
| return mySurviveKit.get(disaster); |
| } |
| |
| public String getName() { |
| return myName; |
| } |
| |
| @NotNull |
| public Where getWhere() { |
| return myWhere; |
| } |
| |
| public boolean isHaveMagicCure() { |
| return myHaveMagicCure; |
| } |
| |
| public void setHaveMagicCure(boolean haveMagicCure) { |
| myHaveMagicCure = haveMagicCure; |
| } |
| |
| public void canceled() { |
| } |
| |
| public static TaskDescriptor createForBackgroundableTask(@NotNull final Task.Backgroundable backgroundable) { |
| return new TaskDescriptor(backgroundable.getTitle(), Where.POOLED) { |
| @Override |
| public void run(ContinuationContext context) { |
| final ProgressIndicator indicator = ProgressManager.getInstance().getProgressIndicator(); |
| try { |
| backgroundable.run(indicator); |
| } catch (ProcessCanceledException e) { |
| // |
| } |
| final boolean canceled = indicator.isCanceled(); |
| context.next(new TaskDescriptor("", Where.AWT) { |
| @Override |
| public void run(ContinuationContext context) { |
| if (canceled) { |
| backgroundable.onCancel(); |
| } else { |
| backgroundable.onSuccess(); |
| } |
| } |
| }); |
| } |
| }; |
| } |
| } |