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HADOOP-14683. FileStatus.compareTo binary compatible issue. Contributed by Akira Ajisaka.

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This commit is contained in:
Junping Du 2017-08-01 17:13:02 -07:00
parent 52d7bafcf4
commit cf6794ebe9
1 changed files with 17 additions and 3 deletions
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18
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/FileStatus.java
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@ -34,7 +34,7 @@
*/
@InterfaceAudience.Public
@InterfaceStability.Stable
public class FileStatus implements Writable, Comparable<FileStatus>,
public class FileStatus implements Writable, Comparable<Object>,
Serializable, ObjectInputValidation {
private static final long serialVersionUID = 0x13caeae8;
@ -352,11 +352,25 @@ public void readFields(DataInput in) throws IOException {
* @return a negative integer, zero, or a positive integer as this object
* is less than, equal to, or greater than the specified object.
*/
@Override
public int compareTo(FileStatus o) {
return this.getPath().compareTo(o.getPath());
}
/**
* Compare this FileStatus to another FileStatus.
* This method was added back by HADOOP-14683 to keep binary compatibility.
*
* @param o the FileStatus to be compared.
* @return a negative integer, zero, or a positive integer as this object
* is less than, equal to, or greater than the specified object.
* @throws ClassCastException if the specified object is not FileStatus
*/
@Override
public int compareTo(Object o) {
FileStatus other = (FileStatus) o;
return compareTo(other);
}
/** Compare if this object is equal to another object
* @param o the object to be compared.
* @return true if two file status has the same path name; false if not.