import quincy 17.2.0

[ceph.git] / ceph / src / arrow / java / flight / flight-core / src / main / java / org / apache / arrow / flight / auth2 / ClientHeaderHandler.java

diff --git a/ceph/src/arrow/java/flight/flight-core/src/main/java/org/apache/arrow/flight/auth2/ClientHeaderHandler.java b/ceph/src/arrow/java/flight/flight-core/src/main/java/org/apache/arrow/flight/auth2/ClientHeaderHandler.java
new file mode 100644 (file)
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--- /dev/null
+++ b/ceph/src/arrow/java/flight/flight-core/src/main/java/org/apache/arrow/flight/auth2/ClientHeaderHandler.java
@@ -0,0 +1,43 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.arrow.flight.auth2;
+
+import org.apache.arrow.flight.CallHeaders;
+import org.apache.arrow.flight.grpc.CredentialCallOption;
+
+/**
+ * Interface for client side header parsing and conversion to CredentialCallOption.
+ */
+public interface ClientHeaderHandler {
+  /**
+   * Parses the incoming headers and converts them into a CredentialCallOption.
+   * @param incomingHeaders Incoming headers to parse.
+   * @return An instance of CredentialCallOption.
+   */
+  CredentialCallOption getCredentialCallOptionFromIncomingHeaders(CallHeaders incomingHeaders);
+  
+  /**
+   * An client header handler that does nothing.
+   */
+  ClientHeaderHandler NO_OP = new ClientHeaderHandler() {
+    @Override
+    public CredentialCallOption getCredentialCallOptionFromIncomingHeaders(CallHeaders incomingHeaders) {
+      return null;
+    }
+  };
+}