Release ObjectStore 0.0.2

src/cloud/lunarsky/store/ObjectStorage.java

@@ -0,0 +1,26 @@
+package cloud.lunarsky.store;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.List;
+
+/** Storage operations shared by the local and cluster gateways. */
+interface ObjectStorage extends AutoCloseable {
+    record Metadata(long length, long modified, String etag, byte[] sha256,
+                    String bucket, String key, String contentType) {}
+    record OpenObject(Metadata metadata, InputStream stream) implements AutoCloseable {
+        public void close() throws IOException { stream.close(); }
+    }
+    record ListedObject(String key, Metadata metadata) {}
+    record ListPage(List<ListedObject> objects, List<String> prefixes, String nextKey, boolean truncated) {
+        int keyCount() { return objects.size() + prefixes.size(); }
+    }
+
+    Metadata put(String bucket, String key, InputStream input, long length, String expectedHash,
+                 String checksum, boolean createOnly, String contentType) throws IOException;
+    OpenObject open(String bucket, String key) throws IOException;
+    void delete(String bucket, String key) throws IOException;
+    ListPage list(String bucket, String prefix, String delimiter, int maxKeys, String after) throws IOException;
+    default boolean ready() { return true; }
+    void close() throws IOException;
+}