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reduce number of "VFS.findFileByUrl()" calls during compilation

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This commit is contained in:
Eugene Zhuravlev
2011-08-24 20:28:57 +02:00
parent 37a8e774ae
commit 3923fd074e
1 changed files with 20 additions and 1 deletions
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java/compiler/impl/src/com/intellij/compiler/impl/TranslatingCompilerFilesMonitor.java
+20 -1
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@@ -83,6 +83,7 @@ public class TranslatingCompilerFilesMonitor implements ApplicationComponent {
private static final String OUTPUT_ROOTS_FILENAME = "output_roots.dat";
private static final FileAttribute ourSourceFileAttribute = new FileAttribute("_make_source_file_info_", 3);
private static final FileAttribute ourOutputFileAttribute = new FileAttribute("_make_output_file_info_", 3);
private static final Key<Map<String, VirtualFile>> SOURCE_FILES_CACHE = Key.create("_source_url_to_vfile_cache_");
private final Object myDataLock = new Object();
private final TIntObjectHashMap<TIntHashSet> mySourcesToRecompile = new TIntObjectHashMap<TIntHashSet>(); // ProjectId->set of source file paths
@@ -221,10 +222,20 @@ public class TranslatingCompilerFilesMonitor implements ApplicationComponent {
final VirtualFileManager vfm = VirtualFileManager.getInstance();
final LocalFileSystem lfs = LocalFileSystem.getInstance();
final List<String> zombieEntries = new ArrayList<String>();
final Map<String, VirtualFile> srcFileCache = getFileCache(context);
for (String outputPath : outputsToDelete.keySet()) {
final SourceUrlClassNamePair classNamePair = outputsToDelete.get(outputPath);
final String sourceUrl = classNamePair.getSourceUrl();
final VirtualFile srcFile = vfm.findFileByUrl(sourceUrl);
final VirtualFile srcFile;
if (srcFileCache.containsKey(sourceUrl)) {
srcFile = srcFileCache.get(sourceUrl);
}
else {
srcFile = vfm.findFileByUrl(sourceUrl);
srcFileCache.put(sourceUrl, srcFile);
}
final boolean sourcePresent = srcFile != null;
if (sourcePresent) {
if (!compiler.isCompilableFile(srcFile, context)) {
@@ -276,6 +287,14 @@ public class TranslatingCompilerFilesMonitor implements ApplicationComponent {
}
}
private static Map<String, VirtualFile> getFileCache(CompileContext context) {
Map<String, VirtualFile> cache = context.getUserData(SOURCE_FILES_CACHE);
if (cache == null) {
context.putUserData(SOURCE_FILES_CACHE, cache = new HashMap<String, VirtualFile>());
}
return cache;
}
private static int getFileId(final VirtualFile file) {
return FileBasedIndex.getFileId(file);
}