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Subject [GitHub] [hadoop] steveloughran commented on a change in pull request #568: HADOOP-15691 Add PathCapabilities to FS and FC to complement StreamCapabilities
Date Fri, 23 Aug 2019 19:09:15 GMT
steveloughran commented on a change in pull request #568: HADOOP-15691 Add PathCapabilities
to FS and FC to complement StreamCapabilities
URL: https://github.com/apache/hadoop/pull/568#discussion_r317266970
 
 

 ##########
 File path: hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/PathCapabilities.java
 ##########
 @@ -0,0 +1,54 @@
+/*
+ * 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.hadoop.fs;
+
+import java.io.IOException;
+
+/**
+ * The Path counterpoint to {@link StreamCapabilities}; a query to see if,
+ * a FileSystem/FileContext instance has a specific capability under the given
+ * path.
+ */
+public interface PathCapabilities {
+
+  /**
+   * Probe for a filesystem instance offering a specific capability under the
 
 Review comment:
   done;

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