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Added option to clear the cache and use it by default (#2340)
This is an attempt to fix problems where users try to start UGS after upgrading and the application dies silently due to the cache being corrupted. This often happens on Windows machines. It will now clear the cache on startup
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95 changes: 95 additions & 0 deletions
95
...m-ugscore/src/main/java/com/willwinder/ugs/nbp/core/lifecycle/StartupOptionProcessor.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,95 @@ | ||
| package com.willwinder.ugs.nbp.core.lifecycle; | ||
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| import org.apache.commons.io.FileUtils; | ||
| import org.netbeans.api.sendopts.CommandException; | ||
| import org.netbeans.spi.sendopts.Env; | ||
| import org.netbeans.spi.sendopts.Option; | ||
| import org.netbeans.spi.sendopts.OptionProcessor; | ||
| import org.openide.cookies.OpenCookie; | ||
| import org.openide.filesystems.FileUtil; | ||
| import org.openide.loaders.DataObject; | ||
| import org.openide.loaders.DataObjectNotFoundException; | ||
| import org.openide.modules.Places; | ||
| import org.openide.util.lookup.ServiceProvider; | ||
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|
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| import java.io.File; | ||
| import java.io.IOException; | ||
| import java.util.Arrays; | ||
| import java.util.HashSet; | ||
| import java.util.Map; | ||
| import java.util.Objects; | ||
| import java.util.Optional; | ||
| import java.util.Set; | ||
| import java.util.logging.Level; | ||
| import java.util.logging.Logger; | ||
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| @ServiceProvider(service = OptionProcessor.class) | ||
| public class StartupOptionProcessor extends OptionProcessor { | ||
| private static final Logger logger = Logger.getLogger(StartupOptionProcessor.class.getName()); | ||
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| private final Option openOption = Option.additionalArguments('o', "open"); | ||
| private final Option defaultOpenOption = Option.defaultArguments(); | ||
| private final Option clearCacheOption = Option.withoutArgument('c', "clearcache"); | ||
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| /** | ||
| * Register interest in the "open" option. | ||
| */ | ||
| @Override | ||
| public Set<Option> getOptions() { | ||
| HashSet<Option> set = new HashSet<>(); | ||
| set.add(openOption); | ||
| set.add(defaultOpenOption); | ||
| set.add(clearCacheOption); | ||
| return set; | ||
| } | ||
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| /** | ||
| * CLI Handler. | ||
| */ | ||
| @Override | ||
| protected void process(Env env, Map<Option, String[]> optionsMap) throws CommandException { | ||
| if (optionsMap.containsKey(clearCacheOption)) { | ||
| clearCache(); | ||
| } | ||
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| Optional<String> fileToOpen = getFileToOpen(optionsMap, openOption); | ||
| if (!fileToOpen.isPresent()) { | ||
| fileToOpen = getFileToOpen(optionsMap, defaultOpenOption); | ||
| } | ||
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| if (fileToOpen.isPresent()) { | ||
| String inputFile = fileToOpen.get(); | ||
| logger.info("File to open: " + inputFile); | ||
| try { | ||
| DataObject.find(FileUtil.toFileObject(new File(inputFile))) | ||
| .getLookup() | ||
| .lookup(OpenCookie.class) | ||
| .open(); | ||
| } catch (DataObjectNotFoundException e) { | ||
| logger.log(Level.SEVERE, "Could not open file " + inputFile, e); | ||
| } | ||
| } | ||
| } | ||
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| private void clearCache() { | ||
| try { | ||
| Arrays.stream(Objects.requireNonNull(Places.getCacheDirectory().listFiles(f -> f.getName().endsWith(".dat")))) | ||
| .forEach(FileUtils::deleteQuietly); | ||
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| FileUtils.deleteQuietly(new File(Places.getCacheDirectory().getAbsolutePath() + File.separator + ".lastUsedVersion")); | ||
| FileUtils.deleteQuietly(new File(Places.getCacheDirectory().getAbsolutePath() + File.separator + "localeVariants")); | ||
| FileUtils.deleteDirectory(new File(Places.getCacheDirectory().getAbsolutePath() + File.separator + "lastModified")); | ||
| } catch (IOException e) { | ||
| logger.log(Level.WARNING, "An error occurred while clearing cache files", e); | ||
| } | ||
| } | ||
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| private Optional<String> getFileToOpen(Map<Option, String[]> optionsMap, Option option) { | ||
| String[] files = optionsMap.getOrDefault(option, new String[0]); | ||
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| if (files.length > 0) { | ||
| return Optional.of(files[0]); | ||
| } | ||
| return Optional.empty(); | ||
| } | ||
| } |