/**
* Helper used by scanXyz methods below to check whether a directory should be visited. It can be
* skipped if it's not a directory or if it's already marked as visited in mVisitedDirs for the
* given package type -- in which case the directory is added to the visited map.
*
* @param pkgType The package type being scanned.
* @param directory The file or directory to check.
* @return False if directory can/should be skipped. True if directory should be visited, in which
* case it's registered in mVisitedDirs.
*/
private boolean shouldVisitDir(@NonNull PkgType pkgType, @NonNull File directory) {
if (!mFileOp.isDirectory(directory)) {
return false;
}
synchronized (mLocalPackages) {
if (mVisitedDirs.containsEntry(pkgType, new LocalDirInfo.MapComparator(directory))) {
return false;
}
mVisitedDirs.put(pkgType, new LocalDirInfo(mFileOp, directory));
}
return true;
}
/**
* For unique local packages. Returns the cached LocalPkgInfo for the requested type. Loads it
* from disk if not cached.
*
* @param filter {@link PkgType#PKG_TOOLS} or {@link PkgType#PKG_PLATFORM_TOOLS} or {@link
* PkgType#PKG_DOC}.
* @return null if the package is not installed.
*/
@Nullable
public LocalPkgInfo getPkgInfo(@NonNull PkgType filter) {
if (filter != PkgType.PKG_TOOLS
&& filter != PkgType.PKG_PLATFORM_TOOLS
&& filter != PkgType.PKG_DOC
&& filter != PkgType.PKG_NDK) {
assert false;
return null;
}
LocalPkgInfo info = null;
synchronized (mLocalPackages) {
Collection<LocalPkgInfo> existing = mLocalPackages.get(filter);
assert existing.size() <= 1;
if (!existing.isEmpty()) {
return existing.iterator().next();
}
File uniqueDir = new File(mSdkRoot, filter.getFolderName());
if (!mVisitedDirs.containsEntry(filter, new LocalDirInfo.MapComparator(uniqueDir))) {
switch (filter) {
case PKG_TOOLS:
info = scanTools(uniqueDir);
break;
case PKG_PLATFORM_TOOLS:
info = scanPlatformTools(uniqueDir);
break;
case PKG_DOC:
info = scanDoc(uniqueDir);
break;
case PKG_NDK:
info = scanNdk(uniqueDir);
default:
break;
}
}
// Whether we have found a valid pkg or not, this directory has been visited.
mVisitedDirs.put(filter, new LocalDirInfo(mFileOp, uniqueDir));
if (info != null) {
mLocalPackages.put(filter, info);
}
}
return info;
}
/**
* Retrieve all the info about the requested package types. This is used for the package types
* that have one or more instances, each with different versions. The resulting array is sorted
* according to the PkgInfo's sort order.
*
* <p>To force the LocalSdk parser to load <b>everything</b>, simply call this method with the
* {@link PkgType#PKG_ALL} argument to load all the known package types.
*
* <p>Note: you can use this with {@link PkgType#PKG_TOOLS}, {@link PkgType#PKG_PLATFORM_TOOLS}
* and {@link PkgType#PKG_DOC} but since there can only be one package of these types, it is more
* efficient to use {@link #getPkgInfo(PkgType)} to query them.
*
* @param filters One or more of {@link PkgType#PKG_ADDON}, {@link PkgType#PKG_PLATFORM}, {@link
* PkgType#PKG_BUILD_TOOLS}, {@link PkgType#PKG_EXTRA}, {@link PkgType#PKG_SOURCE}, {@link
* PkgType#PKG_SYS_IMAGE}
* @return A list (possibly empty) of matching installed packages. Never returns null.
*/
@NonNull
public LocalPkgInfo[] getPkgsInfos(@NonNull EnumSet<PkgType> filters) {
List<LocalPkgInfo> list = Lists.newArrayList();
for (PkgType filter : filters) {
if (filter == PkgType.PKG_TOOLS
|| filter == PkgType.PKG_PLATFORM_TOOLS
|| filter == PkgType.PKG_DOC
|| filter == PkgType.PKG_NDK) {
LocalPkgInfo info = getPkgInfo(filter);
if (info != null) {
list.add(info);
}
} else {
synchronized (mLocalPackages) {
Collection<LocalPkgInfo> existing = mLocalPackages.get(filter);
assert existing != null; // Multimap returns an empty set if not found
if (!existing.isEmpty()) {
list.addAll(existing);
continue;
}
File subDir = new File(mSdkRoot, filter.getFolderName());
if (!mVisitedDirs.containsEntry(filter, new LocalDirInfo.MapComparator(subDir))) {
switch (filter) {
case PKG_BUILD_TOOLS:
scanBuildTools(subDir, existing);
break;
case PKG_PLATFORM:
scanPlatforms(subDir, existing);
break;
case PKG_SYS_IMAGE:
scanSysImages(subDir, existing, false);
break;
case PKG_ADDON_SYS_IMAGE:
scanSysImages(subDir, existing, true);
break;
case PKG_ADDON:
scanAddons(subDir, existing);
break;
case PKG_SAMPLE:
scanSamples(subDir, existing);
break;
case PKG_SOURCE:
scanSources(subDir, existing);
break;
case PKG_EXTRA:
scanExtras(subDir, existing);
break;
case PKG_TOOLS:
case PKG_PLATFORM_TOOLS:
case PKG_DOC:
case PKG_NDK:
break;
default:
throw new IllegalArgumentException("Unsupported pkg type " + filter.toString());
}
mVisitedDirs.put(filter, new LocalDirInfo(mFileOp, subDir));
list.addAll(existing);
}
}
}
}
Collections.sort(list);
return list.toArray(new LocalPkgInfo[list.size()]);
}