Package org.apache.hadoop.hdfs.web

Class JsonUtil

java.lang.Object

org.apache.hadoop.hdfs.web.JsonUtil

public class JsonUtil
extends java.lang.Object

JSON Utilities

Constructor Summary

Constructors

Constructor	Description
JsonUtil()

Method Summary

Modifier and Type	Method	Description
static java.util.Map<java.lang.String,java.lang.Object>	getEcPolicyAsMap(org.apache.hadoop.hdfs.protocol.ErasureCodingPolicy ecPolicy)
static java.util.Map<java.lang.String,java.lang.Object>	toJsonMap(org.apache.hadoop.fs.BlockLocation[] locations)
static java.util.Map<java.lang.String,java.lang.Object>	toJsonMap(org.apache.hadoop.fs.FileStatus status)
static java.util.Map<java.lang.String,java.lang.Object>	toJsonMap(org.apache.hadoop.fs.FsStatus status)
static java.util.Map<java.lang.String,java.lang.Object>	toJsonMap(org.apache.hadoop.hdfs.protocol.ErasureCodingPolicyInfo ecPolicyInfo)
static java.util.Map<java.lang.String,java.lang.Object>	toJsonMap(org.apache.hadoop.hdfs.protocol.LocatedBlocks locatedblocks)	Convert LocatedBlocks to a Map.
static java.lang.String	toJsonString(java.lang.Exception e)	Convert an exception object to a Json string.
static java.lang.String	toJsonString(java.lang.Object obj)
static java.lang.String	toJsonString(java.lang.String key, java.lang.Object value)	Convert a key-value pair to a Json string.
static java.lang.String	toJsonString(java.util.Collection<org.apache.hadoop.fs.FileStatus> trashPaths)
static java.lang.String	toJsonString(java.util.List<org.apache.hadoop.fs.XAttr> xAttrs)
static java.lang.String	toJsonString(java.util.List<org.apache.hadoop.fs.XAttr> xAttrs, org.apache.hadoop.fs.XAttrCodec encoding)
static java.lang.String	toJsonString(org.apache.hadoop.fs.BlockLocation[] locations)
static java.lang.String	toJsonString(org.apache.hadoop.fs.ContentSummary contentsummary)	Convert a ContentSummary to a Json string.
static java.lang.String	toJsonString(org.apache.hadoop.fs.FsServerDefaults serverDefaults)
static java.lang.String	toJsonString(org.apache.hadoop.fs.FsStatus status)
static java.lang.String	toJsonString(org.apache.hadoop.fs.MD5MD5CRC32FileChecksum checksum)	Convert a MD5MD5CRC32FileChecksum to a Json string.
static java.lang.String	toJsonString(org.apache.hadoop.fs.permission.AclStatus status)	Convert a AclStatus object to a Json string.
static java.lang.String	toJsonString(org.apache.hadoop.fs.QuotaUsage quotaUsage)	Convert a QuotaUsage to a JSON string.
static java.lang.String	toJsonString(org.apache.hadoop.hdfs.protocol.BlockStoragePolicy storagePolicy)
static java.lang.String	toJsonString(org.apache.hadoop.hdfs.protocol.BlockStoragePolicy[] storagePolicies)
static java.lang.String	toJsonString(org.apache.hadoop.hdfs.protocol.DirectoryListing listing)
static java.lang.String	toJsonString(org.apache.hadoop.hdfs.protocol.ErasureCodingPolicyInfo[] ecPolicyInfos)
static java.lang.String	toJsonString(org.apache.hadoop.hdfs.protocol.HdfsFileStatus status, boolean includeType)	Convert a HdfsFileStatus object to a Json string.
static java.lang.String	toJsonString(org.apache.hadoop.hdfs.protocol.LocatedBlocks locatedblocks)	Convert LocatedBlocks to a Json string.
static java.lang.String	toJsonString(org.apache.hadoop.hdfs.protocol.SnapshotDiffReport diffReport)
static java.lang.String	toJsonString(org.apache.hadoop.hdfs.protocol.SnapshotDiffReportListing diffReport)
static java.lang.String	toJsonString(org.apache.hadoop.hdfs.protocol.SnapshotStatus[] snapshotList)
static java.lang.String	toJsonString(org.apache.hadoop.hdfs.protocol.SnapshottableDirectoryStatus[] snapshottableDirectoryList)
static java.lang.String	toJsonString(org.apache.hadoop.security.token.Token<? extends org.apache.hadoop.security.token.TokenIdentifier> token)	Convert a token object to a Json string.

Methods inherited from class java.lang.Object

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

Constructor Detail

JsonUtil

public JsonUtil()

Method Detail

toJsonString

public static java.lang.String toJsonString(org.apache.hadoop.security.token.Token<? extends org.apache.hadoop.security.token.TokenIdentifier> token)
                                     throws java.io.IOException

Convert a token object to a Json string.

Throws:

java.io.IOException

toJsonString

public static java.lang.String toJsonString(java.lang.Exception e)

Convert an exception object to a Json string.

toJsonString

public static java.lang.String toJsonString(java.lang.String key,
                                            java.lang.Object value)

Convert a key-value pair to a Json string.

toJsonString

public static java.lang.String toJsonString(org.apache.hadoop.hdfs.protocol.HdfsFileStatus status,
                                            boolean includeType)

Convert a HdfsFileStatus object to a Json string.

getEcPolicyAsMap

public static java.util.Map<java.lang.String,java.lang.Object> getEcPolicyAsMap(org.apache.hadoop.hdfs.protocol.ErasureCodingPolicy ecPolicy)

toJsonString

public static java.lang.String toJsonString(org.apache.hadoop.hdfs.protocol.DirectoryListing listing)
                                     throws java.io.IOException

Throws:

java.io.IOException

toJsonString

public static java.lang.String toJsonString(org.apache.hadoop.hdfs.protocol.LocatedBlocks locatedblocks)
                                     throws java.io.IOException

Convert LocatedBlocks to a Json string.

Throws:

java.io.IOException

toJsonMap

public static java.util.Map<java.lang.String,java.lang.Object> toJsonMap(org.apache.hadoop.hdfs.protocol.LocatedBlocks locatedblocks)
                                                                        throws java.io.IOException

Convert LocatedBlocks to a Map.

Throws:

java.io.IOException

toJsonString

public static java.lang.String toJsonString(org.apache.hadoop.fs.ContentSummary contentsummary)

Convert a ContentSummary to a Json string.

toJsonString

public static java.lang.String toJsonString(org.apache.hadoop.fs.QuotaUsage quotaUsage)

Convert a QuotaUsage to a JSON string.

toJsonString

public static java.lang.String toJsonString(org.apache.hadoop.fs.MD5MD5CRC32FileChecksum checksum)

Convert a MD5MD5CRC32FileChecksum to a Json string.

toJsonString

public static java.lang.String toJsonString(org.apache.hadoop.fs.permission.AclStatus status)

Convert a AclStatus object to a Json string.

toJsonString

public static java.lang.String toJsonString(java.util.List<org.apache.hadoop.fs.XAttr> xAttrs,
                                            org.apache.hadoop.fs.XAttrCodec encoding)
                                     throws java.io.IOException

Throws:

java.io.IOException

toJsonString

public static java.lang.String toJsonString(java.util.List<org.apache.hadoop.fs.XAttr> xAttrs)
                                     throws java.io.IOException

Throws:

java.io.IOException

toJsonString

public static java.lang.String toJsonString(java.lang.Object obj)
                                     throws java.io.IOException

Throws:

java.io.IOException

toJsonString

public static java.lang.String toJsonString(org.apache.hadoop.hdfs.protocol.BlockStoragePolicy[] storagePolicies)

toJsonString

public static java.lang.String toJsonString(org.apache.hadoop.hdfs.protocol.BlockStoragePolicy storagePolicy)

toJsonString

public static java.lang.String toJsonString(org.apache.hadoop.fs.FsServerDefaults serverDefaults)

toJsonString

public static java.lang.String toJsonString(org.apache.hadoop.hdfs.protocol.SnapshotDiffReport diffReport)

toJsonString

public static java.lang.String toJsonString(org.apache.hadoop.hdfs.protocol.SnapshotDiffReportListing diffReport)

toJsonString

public static java.lang.String toJsonString(org.apache.hadoop.hdfs.protocol.SnapshottableDirectoryStatus[] snapshottableDirectoryList)

toJsonString

public static java.lang.String toJsonString(org.apache.hadoop.hdfs.protocol.SnapshotStatus[] snapshotList)

toJsonString

public static java.lang.String toJsonString(org.apache.hadoop.fs.BlockLocation[] locations)
                                     throws java.io.IOException

Throws:

java.io.IOException

toJsonMap

public static java.util.Map<java.lang.String,java.lang.Object> toJsonMap(org.apache.hadoop.fs.BlockLocation[] locations)
                                                                        throws java.io.IOException

Throws:

java.io.IOException

toJsonString

public static java.lang.String toJsonString(org.apache.hadoop.fs.FsStatus status)

toJsonMap

public static java.util.Map<java.lang.String,java.lang.Object> toJsonMap(org.apache.hadoop.fs.FsStatus status)

toJsonMap

public static java.util.Map<java.lang.String,java.lang.Object> toJsonMap(org.apache.hadoop.hdfs.protocol.ErasureCodingPolicyInfo ecPolicyInfo)

toJsonMap

public static java.util.Map<java.lang.String,java.lang.Object> toJsonMap(org.apache.hadoop.fs.FileStatus status)
                                                                        throws java.io.IOException

Throws:

java.io.IOException

toJsonString

public static java.lang.String toJsonString(org.apache.hadoop.hdfs.protocol.ErasureCodingPolicyInfo[] ecPolicyInfos)

toJsonString

public static java.lang.String toJsonString(java.util.Collection<org.apache.hadoop.fs.FileStatus> trashPaths)
                                     throws java.io.IOException

Throws:

java.io.IOException