| Package | Description | 
|---|---|
| org.apache.hadoop.fs | Implementations of  AbstractFileSystemfor hdfs
    over rpc and hdfs over web. | 
| org.apache.hadoop.fs.adl | Supporting classes for metrics instrumentation. | 
| org.apache.hadoop.fs.viewfs | ViewFileSystem and ViewFileSystemOverloadScheme classes. | 
| Modifier and Type | Method and Description | 
|---|---|
| ContentSummary | FileSystem. getContentSummary(Path f)Return the  ContentSummaryof a givenPath. | 
| Modifier and Type | Method and Description | 
|---|---|
| ContentSummary | AdlFileSystem. getContentSummary(Path f)Return the  ContentSummaryof a givenPath. | 
| Modifier and Type | Method and Description | 
|---|---|
| ContentSummary | ViewFileSystem. getContentSummary(Path f) | 
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