/*
* Copyright 2000-2014 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.codeInsight.actions;
import com.intellij.codeInsight.CodeInsightBundle;
import com.intellij.lang.ImportOptimizer;
import com.intellij.lang.LanguageImportStatements;
import com.intellij.openapi.module.Module;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.util.EmptyRunnable;
import com.intellij.psi.PsiDirectory;
import com.intellij.psi.PsiFile;
import com.intellij.psi.impl.source.codeStyle.CodeStyleManagerImpl;
import com.intellij.util.containers.ContainerUtil;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;
import java.util.concurrent.FutureTask;
import static com.intellij.codeInsight.actions.OptimizeImportsProcessor.NotificationInfo.*;
public class OptimizeImportsProcessor extends AbstractLayoutCodeProcessor {
private static final String PROGRESS_TEXT = CodeInsightBundle.message("progress.text.optimizing.imports");
public static final String COMMAND_NAME = CodeInsightBundle.message("process.optimize.imports");
private List<NotificationInfo> myOptimizerNotifications = ContainerUtil.newSmartList();
public OptimizeImportsProcessor(Project project) {
super(project, COMMAND_NAME, PROGRESS_TEXT, false);
}
public OptimizeImportsProcessor(Project project, Module module) {
super(project, module, COMMAND_NAME, PROGRESS_TEXT, false);
}
public OptimizeImportsProcessor(Project project, PsiDirectory directory, boolean includeSubdirs) {
super(project, directory, includeSubdirs, PROGRESS_TEXT, COMMAND_NAME, false);
}
public OptimizeImportsProcessor(Project project, PsiDirectory directory, boolean includeSubdirs, boolean processOnlyVcsChangedFiles) {
super(project, directory, includeSubdirs, PROGRESS_TEXT, COMMAND_NAME, processOnlyVcsChangedFiles);
}
public OptimizeImportsProcessor(Project project, PsiFile file) {
super(project, file, PROGRESS_TEXT, COMMAND_NAME, false);
}
public OptimizeImportsProcessor(Project project, PsiFile[] files, Runnable postRunnable) {
this(project, files, COMMAND_NAME, postRunnable);
}
public OptimizeImportsProcessor(Project project, PsiFile[] files, String commandName, Runnable postRunnable) {
super(project, files, PROGRESS_TEXT, commandName, postRunnable, false);
}
public OptimizeImportsProcessor(AbstractLayoutCodeProcessor processor) {
super(processor, COMMAND_NAME, PROGRESS_TEXT);
}
@Override
@NotNull
protected FutureTask<Boolean> prepareTask(@NotNull PsiFile file, boolean processChangedTextOnly) {
final Set<ImportOptimizer> optimizers = LanguageImportStatements.INSTANCE.forFile(file);
final List<Runnable> runnables = new ArrayList<Runnable>();
List<PsiFile> files = file.getViewProvider().getAllFiles();
for (ImportOptimizer optimizer : optimizers) {
for (PsiFile psiFile : files) {
if (optimizer.supports(psiFile)) {
runnables.add(optimizer.processFile(psiFile));
}
}
}
Runnable runnable = !runnables.isEmpty() ? new Runnable() {
@Override
public void run() {
CodeStyleManagerImpl.setSequentialProcessingAllowed(false);
try {
for (Runnable runnable : runnables) {
runnable.run();
retrieveAndStoreNotificationInfo(runnable);
}
putNotificationInfoIntoCollector();
}
finally {
CodeStyleManagerImpl.setSequentialProcessingAllowed(true);
}
}
} : EmptyRunnable.getInstance();
return new FutureTask<Boolean>(runnable, true);
}
private void retrieveAndStoreNotificationInfo(@NotNull Runnable runnable) {
if (runnable instanceof ImportOptimizer.CollectingInfoRunnable) {
String optimizerMessage = ((ImportOptimizer.CollectingInfoRunnable)runnable).getUserNotificationInfo();
myOptimizerNotifications.add(optimizerMessage != null ? new NotificationInfo(optimizerMessage) : NOTHING_CHANGED_NOTIFICATION);
}
else if (runnable == EmptyRunnable.getInstance()) {
myOptimizerNotifications.add(NOTHING_CHANGED_NOTIFICATION);
}
else {
myOptimizerNotifications.add(SOMETHING_CHANGED_WITHOUT_MESSAGE_NOTIFICATION);
}
}
private void putNotificationInfoIntoCollector() {
LayoutCodeInfoCollector collector = getInfoCollector();
if (collector == null) {
return;
}
boolean atLeastOneOptimizerChangedSomething = false;
for (NotificationInfo info : myOptimizerNotifications) {
atLeastOneOptimizerChangedSomething |= info.isSomethingChanged();
if (info.getMessage() != null) {
collector.setOptimizeImportsNotification(info.getMessage());
return;
}
}
collector.setOptimizeImportsNotification(atLeastOneOptimizerChangedSomething ? "imports optimized" : null);
}
static class NotificationInfo {
public static final NotificationInfo NOTHING_CHANGED_NOTIFICATION = new NotificationInfo(false, null);
public static final NotificationInfo SOMETHING_CHANGED_WITHOUT_MESSAGE_NOTIFICATION = new NotificationInfo(true, null);
private final boolean mySomethingChanged;
private final String myMessage;
NotificationInfo(@NotNull String message) {
this(true, message);
}
public boolean isSomethingChanged() {
return mySomethingChanged;
}
public String getMessage() {
return myMessage;
}
private NotificationInfo(boolean isSomethingChanged, @Nullable String message) {
mySomethingChanged = isSomethingChanged;
myMessage = message;
}
}
}