Package org.apache.hadoop.hdfs.web

Class JsonUtilClient

java.lang.Object

org.apache.hadoop.hdfs.web.JsonUtilClient

public class JsonUtilClient
extends Object

Utility methods used in WebHDFS/HttpFS JSON conversion.

Constructor Summary

Constructors

Constructor	Description
JsonUtilClient()

Method Summary

Modifier and Type	Method	Description
static Collection<ErasureCodingPolicyInfo>	getAllErasureCodingPolicies(Map<?,?> json)
static Map<String,String>	getErasureCodeCodecs(Map<?,?> json)
static Collection<BlockStoragePolicy>	getStoragePolicies(Map<?,?> json)
static Collection<org.apache.hadoop.fs.FileStatus>	getTrashRoots(Map<?,?> json)
static org.apache.hadoop.fs.BlockLocation[]	toBlockLocationArray(Map<?,?> json)
static BlockStoragePolicy	toBlockStoragePolicy(Map<?,?> m)
static List<SnapshotDiffReportListing.DiffReportListingEntry>	toDiffListingList(List<?> objs)
static ErasureCodingPolicy	toECPolicy(Map<?,?> m)
static ErasureCodingPolicyInfo	toECPolicyInfo(Map<?,?> m)
static org.apache.hadoop.fs.FileStatus	toFileStatus(Map<?,?> json)
static HdfsFileStatus	toFileStatus(Map<?,?> json, boolean includesType)	Convert a Json map to a HdfsFileStatus object.
static org.apache.hadoop.fs.FsServerDefaults	toFsServerDefaults(Map<?,?> json)
static org.apache.hadoop.fs.FsStatus	toFsStatus(Map<?,?> json)
static SnapshotDiffReport	toSnapshotDiffReport(Map<?,?> json)
static SnapshotDiffReportListing	toSnapshotDiffReportListing(Map<?,?> json)
static SnapshotStatus[]	toSnapshotList(Map<?,?> json)
static SnapshottableDirectoryStatus[]	toSnapshottableDirectoryList(Map<?,?> json)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

JsonUtilClient

public JsonUtilClient()

Method Details

toFileStatus

public static HdfsFileStatus toFileStatus(Map<?,?> json,
 boolean includesType)

Convert a Json map to a HdfsFileStatus object.

getStoragePolicies

public static Collection<BlockStoragePolicy> getStoragePolicies(Map<?,?> json)

toBlockStoragePolicy

public static BlockStoragePolicy toBlockStoragePolicy(Map<?,?> m)

toECPolicy

public static ErasureCodingPolicy toECPolicy(Map<?,?> m)

toFsServerDefaults

public static org.apache.hadoop.fs.FsServerDefaults toFsServerDefaults(Map<?,?> json)

toSnapshotDiffReport

public static SnapshotDiffReport toSnapshotDiffReport(Map<?,?> json)

toFsStatus

public static org.apache.hadoop.fs.FsStatus toFsStatus(Map<?,?> json)

getAllErasureCodingPolicies

public static Collection<ErasureCodingPolicyInfo> getAllErasureCodingPolicies(Map<?,?> json)

toECPolicyInfo

public static ErasureCodingPolicyInfo toECPolicyInfo(Map<?,?> m)

getErasureCodeCodecs

public static Map<String,String> getErasureCodeCodecs(Map<?,?> json)

getTrashRoots

public static Collection<org.apache.hadoop.fs.FileStatus> getTrashRoots(Map<?,?> json)

toFileStatus

public static org.apache.hadoop.fs.FileStatus toFileStatus(Map<?,?> json)

toSnapshotDiffReportListing

public static SnapshotDiffReportListing toSnapshotDiffReportListing(Map<?,?> json)

toDiffListingList

public static List<SnapshotDiffReportListing.DiffReportListingEntry> toDiffListingList(List<?> objs)

toSnapshottableDirectoryList

public static SnapshottableDirectoryStatus[] toSnapshottableDirectoryList(Map<?,?> json)

toSnapshotList

public static SnapshotStatus[] toSnapshotList(Map<?,?> json)

toBlockLocationArray

@VisibleForTesting
public static org.apache.hadoop.fs.BlockLocation[] toBlockLocationArray(Map<?,?> json)
                                                                 throws IOException

Throws:

IOException