com.peersafe.chainsql.util

类 Util

java.lang.Object

com.peersafe.chainsql.util.Util

public class Util
extends Object

构造器概要

构造器

构造器和说明
Util()

方法概要

限定符和类型	方法和说明
static List<String>	array(String val0, String... vals) String Parameters to List of String
static String	bytesToHex(byte[] bytes) Transfer byte array to Hex String
static int	bytesToInt(byte[] src) byte数组中取int数值，本方法适用于(低位在前，高位在后)的顺序，和和intToBytes（）配套使用
static void	decryptData(byte[] pass, org.json.JSONObject tx) unhex some fields
static String	encryptRaw(Connection connection, String token, String strRaw)
static org.json.JSONObject	errorObject(String errMsg)
static String	fromHexString(String s) Transfer from HexString to String
static Amount	getExtraFee(org.json.JSONObject json, int drops_per_byte, TransactionType type) 获取交易的额外的费用
static String	getNewAccountFromTx(org.json.JSONObject tx)
static String	getPublicHexFromSecret(String secret)
static byte[]	getRandomBytes(int length) Get random byte array.
static String	getUserToken(Connection connection, String address, String name)
static byte[]	hexToBytes(String bytes) Hex String to byte array.
static byte[]	intToBytes(int value) 将int数值转换为占四个字节的byte数组，本方法适用于(低位在前，高位在后)的顺序。
static boolean	isChainsqlType(TransactionType type)
static org.json.JSONArray	listToJSONArray(List<String> accounts) Transform list to JSONArray
static List<org.json.JSONObject>	ListToJsonList(List<String> list) Transfer a JSON-str List to a JSONObject List.
static byte[]	paddingPass(byte[] password, int keyLength)
static byte[]	sign(byte[] message, String secret) 签名接口
static org.json.JSONObject	StrToJson(String args) Transfer a json-str to JSONObject.
static org.json.JSONArray	strToJSONArray(String str) JSON-Str to JSONArray
static String	StrToJsonStr(String args)
static org.json.JSONObject	successObject()
static String	toHexString(String s) String to HexString
static void	unHexData(org.json.JSONObject tx) unhex some fields
static boolean	verify(byte[] message, byte[] signature, String publicKey) 验证签名接口
static void	waiting() Wait for 50 milliseconds.

从类继承的方法 java.lang.Object

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

构造器详细资料

Util

public Util()

方法详细资料

StrToJsonStr

public static String StrToJsonStr(String args)

参数:

args - String.

返回:

JSON String.

StrToJson

public static org.json.JSONObject StrToJson(String args)

Transfer a json-str to JSONObject.

参数:

args - String of JSON.

返回:

JSONObject.

ListToJsonList

public static List<org.json.JSONObject> ListToJsonList(List<String> list)

Transfer a JSON-str List to a JSONObject List.

参数:

list - JSON String list.

返回:

JSONObject list.

strToJSONArray

public static org.json.JSONArray strToJSONArray(String str)

JSON-Str to JSONArray

参数:

str - JSON String

返回:

JSON array.

listToJSONArray

public static org.json.JSONArray listToJSONArray(List<String> accounts)

Transform list to JSONArray

参数:

accounts - accounts

返回:

JSONArray object

getRandomBytes

public static byte[] getRandomBytes(int length)

Get random byte array.

参数:

length - Random array length.

返回:

Byte array.

bytesToHex

public static String bytesToHex(byte[] bytes)

Transfer byte array to Hex String

参数:

bytes - Byte array to be hexed.

返回:

Hexed String.

hexToBytes

public static byte[] hexToBytes(String bytes)

Hex String to byte array.

参数:

bytes - hexString

返回:

Hexed byte array.

toHexString

public static String toHexString(String s)

String to HexString

参数:

s - String to be hexed.

返回:

String hexed.

fromHexString

public static String fromHexString(String s)

Transfer from HexString to String

参数:

s - Hex String.

返回:

Unhexed String.

paddingPass

public static byte[] paddingPass(byte[] password,
                                 int keyLength)

array

public static List<String> array(String val0,
                                 String... vals)

String Parameters to List of String

参数:

val0 - String

vals - String

返回:

List of String

unHexData

public static void unHexData(org.json.JSONObject tx)

unhex some fields

参数:

tx - JSONObject to be unhexed.

decryptData

public static void decryptData(byte[] pass,
                               org.json.JSONObject tx)

unhex some fields

参数:

pass - Secret used to decrypt

tx - JSONObject to be unhexed.

waiting

public static void waiting()

Wait for 50 milliseconds.

successObject

public static org.json.JSONObject successObject()

errorObject

public static org.json.JSONObject errorObject(String errMsg)

intToBytes

public static byte[] intToBytes(int value)

将int数值转换为占四个字节的byte数组，本方法适用于(低位在前，高位在后)的顺序。 和bytesToInt（）配套使用

参数:

value - 要转换的int值

返回:

byte数组

bytesToInt

public static int bytesToInt(byte[] src)

byte数组中取int数值，本方法适用于(低位在前，高位在后)的顺序，和和intToBytes（）配套使用

参数:

src - byte数组

返回:

int数值

isChainsqlType

public static boolean isChainsqlType(TransactionType type)

getExtraFee

public static Amount getExtraFee(org.json.JSONObject json,
                                 int drops_per_byte,
                                 TransactionType type)

获取交易的额外的费用

参数:

json - 交易json

drops_per_byte - 每字节消耗多少drops

type - 交易类别

返回:

额外的费用

getNewAccountFromTx

public static String getNewAccountFromTx(org.json.JSONObject tx)

sign

public static byte[] sign(byte[] message,
                          String secret)

签名接口

参数:

message - 要签名的内容

secret - 签名私钥

返回:

签名

verify

public static boolean verify(byte[] message,
                             byte[] signature,
                             String publicKey)

验证签名接口

参数:

message - 被签名的内容

signature - 签名

publicKey - 签名公钥

返回:

是否验签成功

getPublicHexFromSecret

public static String getPublicHexFromSecret(String secret)

getUserToken

public static String getUserToken(Connection connection,
                                  String address,
                                  String name)
                           throws Exception

抛出:

Exception

encryptRaw

public static String encryptRaw(Connection connection,
                                String token,
                                String strRaw)
                         throws Exception

抛出:

Exception