Expose some DFS APIs as public or protected
Expose class DfsReader and method DfsPackFile.hasObject() as public. Applications may want to be able to inquire about some details of the storage of a repository. Make this possible by exposing some simple accessor methods. Expose method DfsObjDatabase.clearCache() as protected, allowing implementing subclasses to dump the cache if necessary, and force it to reload on a future request. Change-Id: Ic592c82d45ace9f2fa5f8d7e4bacfdce96dea969
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@ -423,7 +423,8 @@ private static Map<DfsPackDescription, DfsPackFile> reuseMap(PackList old) {
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return forReuse;
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return forReuse;
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}
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}
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void clearCache() {
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/** Clears the cached list of packs, forcing them to be scanned again. */
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protected void clearCache() {
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packList.set(NO_PACKS);
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packList.set(NO_PACKS);
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}
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}
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@ -272,7 +272,19 @@ private PackReverseIndex getReverseIdx(DfsReader ctx) throws IOException {
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}
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}
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}
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}
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boolean hasObject(DfsReader ctx, AnyObjectId id) throws IOException {
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/**
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* Check if an object is stored within this pack.
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*
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* @param ctx
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* reader context to support reading from the backing store if
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* the index is not already loaded in memory.
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* @param id
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* object to be located.
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* @return true if the object exists in this pack; false if it does not.
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* @throws IOException
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* the pack index is not available, or is corrupt.
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*/
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public boolean hasObject(DfsReader ctx, AnyObjectId id) throws IOException {
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final long offset = idx(ctx).findOffset(id);
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final long offset = idx(ctx).findOffset(id);
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return 0 < offset && !isCorrupt(offset);
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return 0 < offset && !isCorrupt(offset);
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}
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}
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@ -90,7 +90,13 @@
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import org.eclipse.jgit.storage.pack.PackWriter;
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import org.eclipse.jgit.storage.pack.PackWriter;
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import org.eclipse.jgit.util.BlockList;
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import org.eclipse.jgit.util.BlockList;
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final class DfsReader extends ObjectReader implements ObjectReuseAsIs {
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/**
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* Reader to access repository content through.
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* <p>
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* See the base {@link ObjectReader} documentation for details. Notably, a
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* reader is not thread safe.
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*/
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public final class DfsReader extends ObjectReader implements ObjectReuseAsIs {
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/** Temporary buffer large enough for at least one raw object id. */
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/** Temporary buffer large enough for at least one raw object id. */
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final byte[] tempId = new byte[OBJECT_ID_LENGTH];
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final byte[] tempId = new byte[OBJECT_ID_LENGTH];
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