org.apache.hadoop.hdfs.web

Class JsonUtil

java.lang.Object

org.apache.hadoop.hdfs.web.JsonUtil

public class JsonUtil
extends Object

JSON Utilities

Constructor Summary

Constructors

Constructor and Description
JsonUtil()

Method Summary

Methods

Modifier and Type	Method and Description
static org.apache.hadoop.fs.ContentSummary	toContentSummary(Map<?,?> json) Convert a Json map to a ContentSummary.
static org.apache.hadoop.security.token.Token<org.apache.hadoop.hdfs.security.token.delegation.DelegationTokenIdentifier>	toDelegationToken(Map<?,?> json) Convert a Json map to a Token of DelegationTokenIdentifier.
static org.apache.hadoop.hdfs.protocol.HdfsFileStatus	toFileStatus(Map<?,?> json, boolean includesType) Convert a Json map to a HdfsFileStatus object.
static String	toJsonString(org.apache.hadoop.fs.ContentSummary contentsummary) Convert a ContentSummary to a Json string.
static String	toJsonString(Exception e) Convert an exception object to a Json string.
static String	toJsonString(org.apache.hadoop.hdfs.protocol.HdfsFileStatus status, boolean includeType) Convert a HdfsFileStatus object to a Json string.
static String	toJsonString(org.apache.hadoop.hdfs.protocol.LocatedBlocks locatedblocks) Convert LocatedBlocks to a Json string.
static String	toJsonString(org.apache.hadoop.fs.MD5MD5CRC32FileChecksum checksum) Convert a MD5MD5CRC32FileChecksum to a Json string.
static String	toJsonString(String key, Object value) Convert a key-value pair to a Json string.
static String	toJsonString(org.apache.hadoop.security.token.Token<? extends org.apache.hadoop.security.token.TokenIdentifier> token) Convert a token object to a Json string.
static String	toJsonString(org.apache.hadoop.security.token.Token<? extends org.apache.hadoop.security.token.TokenIdentifier>[] tokens) Convert a token object to a JSON string.
static org.apache.hadoop.hdfs.protocol.LocatedBlocks	toLocatedBlocks(Map<?,?> json) Convert a Json map to LocatedBlock.
static org.apache.hadoop.fs.MD5MD5CRC32FileChecksum	toMD5MD5CRC32FileChecksum(Map<?,?> json) Convert a Json map to a MD5MD5CRC32FileChecksum.
static org.apache.hadoop.ipc.RemoteException	toRemoteException(Map<?,?> json) Convert a Json map to a RemoteException.
static org.apache.hadoop.security.token.Token<? extends org.apache.hadoop.security.token.TokenIdentifier>	toToken(Map<?,?> m) Convert a Json map to a Token.
static List<org.apache.hadoop.security.token.Token<?>>	toTokenList(Map<?,?> json) Convert a JSON map to a List>.

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 String toJsonString(org.apache.hadoop.security.token.Token<? extends org.apache.hadoop.security.token.TokenIdentifier> token)
                           throws IOException

Convert a token object to a Json string.

Throws:

IOException

toToken

public static org.apache.hadoop.security.token.Token<? extends org.apache.hadoop.security.token.TokenIdentifier> toToken(Map<?,?> m)
                                                                                                                  throws IOException

Convert a Json map to a Token.

Throws:

IOException

toDelegationToken

public static org.apache.hadoop.security.token.Token<org.apache.hadoop.hdfs.security.token.delegation.DelegationTokenIdentifier> toDelegationToken(Map<?,?> json)
                                                                                                                                            throws IOException

Convert a Json map to a Token of DelegationTokenIdentifier.

Throws:

IOException

toJsonString

public static String toJsonString(org.apache.hadoop.security.token.Token<? extends org.apache.hadoop.security.token.TokenIdentifier>[] tokens)
                           throws IOException

Convert a token object to a JSON string.

Throws:

IOException

toTokenList

public static List<org.apache.hadoop.security.token.Token<?>> toTokenList(Map<?,?> json)
                                                                   throws IOException

Convert a JSON map to a List>.

Throws:

IOException

toJsonString

public static String toJsonString(Exception e)

Convert an exception object to a Json string.

toRemoteException

public static org.apache.hadoop.ipc.RemoteException toRemoteException(Map<?,?> json)

Convert a Json map to a RemoteException.

toJsonString

public static String toJsonString(String key,
                  Object value)

Convert a key-value pair to a Json string.

toJsonString

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

Convert a HdfsFileStatus object to a Json string.

toFileStatus

public static org.apache.hadoop.hdfs.protocol.HdfsFileStatus toFileStatus(Map<?,?> json,
                                                          boolean includesType)

Convert a Json map to a HdfsFileStatus object.

toJsonString

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

Convert LocatedBlocks to a Json string.

Throws:

IOException

toLocatedBlocks

public static org.apache.hadoop.hdfs.protocol.LocatedBlocks toLocatedBlocks(Map<?,?> json)
                                                                     throws IOException

Convert a Json map to LocatedBlock.

Throws:

IOException

toJsonString

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

Convert a ContentSummary to a Json string.

toContentSummary

public static org.apache.hadoop.fs.ContentSummary toContentSummary(Map<?,?> json)

Convert a Json map to a ContentSummary.

toJsonString

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

Convert a MD5MD5CRC32FileChecksum to a Json string.

toMD5MD5CRC32FileChecksum

public static org.apache.hadoop.fs.MD5MD5CRC32FileChecksum toMD5MD5CRC32FileChecksum(Map<?,?> json)
                                                                              throws IOException

Convert a Json map to a MD5MD5CRC32FileChecksum.

Throws:

IOException