io.nats.client.support

Class JsonUtils

java.lang.Object

io.nats.client.support.JsonUtils

public abstract class JsonUtils
extends java.lang.Object

Internal json parsing helpers.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	JsonUtils.FieldType

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	CLOSE
static java.lang.String	EMPTY_JSON
static java.lang.String	OPENQ

Method Summary

Modifier and Type	Method and Description
static void	addField(java.lang.StringBuilder sb, java.lang.String fname, boolean value) Appends a json field to a string builder.
static void	addField(java.lang.StringBuilder sb, java.lang.String fname, JsonSerializable value) Appends a json object to a string builder.
static void	addField(java.lang.StringBuilder sb, java.lang.String fname, long value) Appends a json field to a string builder.
static void	addField(java.lang.StringBuilder sb, java.lang.String fname, java.lang.String value) Appends a json field to a string builder.
static void	addField(java.lang.StringBuilder sb, java.lang.String fname, java.time.ZonedDateTime zonedDateTime) Appends a date/time to a string builder as a rfc 3339 formatted field.
static void	addFieldAsNanos(java.lang.StringBuilder sb, java.lang.String fname, java.time.Duration value) Appends a json field to a string builder.
static void	addFldWhenTrue(java.lang.StringBuilder sb, java.lang.String fname, java.lang.Boolean value) Appends a json field to a string builder.
static void	addJsons(java.lang.StringBuilder sb, java.lang.String fname, java.util.List<? extends JsonSerializable> jsons) Appends a json field to a string builder.
static void	addStrings(java.lang.StringBuilder sb, java.lang.String fname, java.util.List<java.lang.String> strings) Appends a json field to a string builder.
static void	addStrings(java.lang.StringBuilder sb, java.lang.String fname, java.lang.String[] strArray) Appends a json field to a string builder.
static java.lang.StringBuilder	beginFormattedJson()
static java.lang.StringBuilder	beginJson()
static java.lang.StringBuilder	beginJsonPrefixed(java.lang.String prefix)
static java.util.regex.Pattern	boolean_pattern(java.lang.String field)
static java.util.regex.Pattern	buildPattern(java.lang.String fieldName, JsonUtils.FieldType type) Builds a json parsing pattern
static java.util.regex.Pattern	buildPattern(java.lang.String fieldName, java.lang.String typeRE)
static java.lang.String	decode(java.lang.String s)
static java.lang.String	endFormattedJson(java.lang.StringBuilder sb)
static java.lang.StringBuilder	endJson(java.lang.StringBuilder sb)
static java.lang.String	getJsonObject(java.lang.String objectName, java.lang.String json) Extract a JSON object string by object name.
static java.lang.String	getJsonObject(java.lang.String objectName, java.lang.String json, java.lang.String dflt)
static java.util.List<java.lang.String>	getObjectList(java.lang.String objectName, java.lang.String json) Extract a list JSON object strings for list object name.
static java.util.List<java.lang.String>	getStringList(java.lang.String objectName, java.lang.String json) Extract a list strings for list object name.
static java.lang.String	normalize(java.lang.String s)
static java.util.regex.Pattern	number_pattern(java.lang.String field)
static java.lang.String	objectString(java.lang.String name, java.lang.Object o)
static void	printFormatted(java.lang.Object o)
static byte[]	readBase64(java.lang.String json, java.util.regex.Pattern pattern)
static boolean	readBoolean(java.lang.String json, java.util.regex.Pattern pattern)
static byte[]	readBytes(java.lang.String json, java.util.regex.Pattern pattern)
static java.time.ZonedDateTime	readDate(java.lang.String json, java.util.regex.Pattern pattern)
static int	readInt(java.lang.String json, java.util.regex.Pattern pattern, int dflt)
static void	readInt(java.lang.String json, java.util.regex.Pattern pattern, java.util.function.IntConsumer c)
static long	readLong(java.lang.String json, java.util.regex.Pattern pattern, long dflt)
static void	readLong(java.lang.String json, java.util.regex.Pattern pattern, java.util.function.LongConsumer c)
static void	readNanos(java.lang.String json, java.util.regex.Pattern pattern, java.util.function.Consumer<java.time.Duration> c)
static java.time.Duration	readNanos(java.lang.String json, java.util.regex.Pattern pattern, java.time.Duration dflt)
static java.lang.String	readString(java.lang.String json, java.util.regex.Pattern pattern)
static java.lang.String	readString(java.lang.String json, java.util.regex.Pattern pattern, java.lang.String dflt)
static byte[]	simpleMessageBody(java.lang.String name, java.lang.Object value)
static java.util.regex.Pattern	string_array_pattern(java.lang.String field)
static java.util.regex.Pattern	string_pattern(java.lang.String field)

Methods inherited from class java.lang.Object

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

Field Detail

EMPTY_JSON

public static final java.lang.String EMPTY_JSON

See Also:

Constant Field Values

OPENQ

public static final java.lang.String OPENQ

See Also:

Constant Field Values

CLOSE

public static final java.lang.String CLOSE

See Also:

Constant Field Values

Method Detail

string_pattern

public static java.util.regex.Pattern string_pattern(java.lang.String field)

number_pattern

public static java.util.regex.Pattern number_pattern(java.lang.String field)

boolean_pattern

public static java.util.regex.Pattern boolean_pattern(java.lang.String field)

string_array_pattern

public static java.util.regex.Pattern string_array_pattern(java.lang.String field)

buildPattern

public static java.util.regex.Pattern buildPattern(java.lang.String fieldName,
                                                   JsonUtils.FieldType type)

Builds a json parsing pattern

Parameters:

fieldName - name of the field

type - type of the field.

Returns:

pattern.

buildPattern

public static java.util.regex.Pattern buildPattern(java.lang.String fieldName,
                                                   java.lang.String typeRE)

getJsonObject

public static java.lang.String getJsonObject(java.lang.String objectName,
                                             java.lang.String json)

Extract a JSON object string by object name. Returns empty object '{}' if not found.

Parameters:

objectName - object name

json - source json

Returns:

object json string

getJsonObject

public static java.lang.String getJsonObject(java.lang.String objectName,
                                             java.lang.String json,
                                             java.lang.String dflt)

getObjectList

public static java.util.List<java.lang.String> getObjectList(java.lang.String objectName,
                                                             java.lang.String json)

Extract a list JSON object strings for list object name. Returns empty list '{}' if not found. Assumes that there are no brackets '{' or '}' in the actual data.

Parameters:

objectName - list object name

json - source json

Returns:

object json string

getStringList

public static java.util.List<java.lang.String> getStringList(java.lang.String objectName,
                                                             java.lang.String json)

Extract a list strings for list object name. Returns empty array if not found. Assumes that there are no brackets '{' or '}' in the actual data.

Parameters:

objectName - object name

json - source json

Returns:

a string list, empty if no values are found.

simpleMessageBody

public static byte[] simpleMessageBody(java.lang.String name,
                                       java.lang.Object value)

beginJson

public static java.lang.StringBuilder beginJson()

beginJsonPrefixed

public static java.lang.StringBuilder beginJsonPrefixed(java.lang.String prefix)

endJson

public static java.lang.StringBuilder endJson(java.lang.StringBuilder sb)

beginFormattedJson

public static java.lang.StringBuilder beginFormattedJson()

endFormattedJson

public static java.lang.String endFormattedJson(java.lang.StringBuilder sb)

addField

public static void addField(java.lang.StringBuilder sb,
                            java.lang.String fname,
                            java.lang.String value)

Appends a json field to a string builder.

Parameters:

sb - string builder

fname - fieldname

value - field value

addField

public static void addField(java.lang.StringBuilder sb,
                            java.lang.String fname,
                            boolean value)

Appends a json field to a string builder.

Parameters:

sb - string builder

fname - fieldname

value - field value

addFldWhenTrue

public static void addFldWhenTrue(java.lang.StringBuilder sb,
                                  java.lang.String fname,
                                  java.lang.Boolean value)

Appends a json field to a string builder.

Parameters:

sb - string builder

fname - fieldname

value - field value

addField

public static void addField(java.lang.StringBuilder sb,
                            java.lang.String fname,
                            long value)

Appends a json field to a string builder.

Parameters:

sb - string builder

fname - fieldname

value - field value

addFieldAsNanos

public static void addFieldAsNanos(java.lang.StringBuilder sb,
                                   java.lang.String fname,
                                   java.time.Duration value)

Appends a json field to a string builder.

Parameters:

sb - string builder

fname - fieldname

value - duration value

addField

public static void addField(java.lang.StringBuilder sb,
                            java.lang.String fname,
                            JsonSerializable value)

Appends a json object to a string builder.

Parameters:

sb - string builder

fname - fieldname

value - JsonSerializable value

addStrings

public static void addStrings(java.lang.StringBuilder sb,
                              java.lang.String fname,
                              java.lang.String[] strArray)

Appends a json field to a string builder.

Parameters:

sb - string builder

fname - fieldname

strArray - field value

addStrings

public static void addStrings(java.lang.StringBuilder sb,
                              java.lang.String fname,
                              java.util.List<java.lang.String> strings)

Appends a json field to a string builder.

Parameters:

sb - string builder

fname - fieldname

strings - field value

addJsons

public static void addJsons(java.lang.StringBuilder sb,
                            java.lang.String fname,
                            java.util.List<? extends JsonSerializable> jsons)

Appends a json field to a string builder.

Parameters:

sb - string builder

fname - fieldname

jsons - field value

addField

public static void addField(java.lang.StringBuilder sb,
                            java.lang.String fname,
                            java.time.ZonedDateTime zonedDateTime)

Appends a date/time to a string builder as a rfc 3339 formatted field.

Parameters:

sb - string builder

fname - fieldname

zonedDateTime - field value

readString

public static java.lang.String readString(java.lang.String json,
                                          java.util.regex.Pattern pattern)

readString

public static java.lang.String readString(java.lang.String json,
                                          java.util.regex.Pattern pattern,
                                          java.lang.String dflt)

readBytes

public static byte[] readBytes(java.lang.String json,
                               java.util.regex.Pattern pattern)

readBase64

public static byte[] readBase64(java.lang.String json,
                                java.util.regex.Pattern pattern)

readBoolean

public static boolean readBoolean(java.lang.String json,
                                  java.util.regex.Pattern pattern)

readInt

public static int readInt(java.lang.String json,
                          java.util.regex.Pattern pattern,
                          int dflt)

readInt

public static void readInt(java.lang.String json,
                           java.util.regex.Pattern pattern,
                           java.util.function.IntConsumer c)

readLong

public static long readLong(java.lang.String json,
                            java.util.regex.Pattern pattern,
                            long dflt)

readLong

public static void readLong(java.lang.String json,
                            java.util.regex.Pattern pattern,
                            java.util.function.LongConsumer c)

readDate

public static java.time.ZonedDateTime readDate(java.lang.String json,
                                               java.util.regex.Pattern pattern)

readNanos

public static java.time.Duration readNanos(java.lang.String json,
                                           java.util.regex.Pattern pattern,
                                           java.time.Duration dflt)

readNanos

public static void readNanos(java.lang.String json,
                             java.util.regex.Pattern pattern,
                             java.util.function.Consumer<java.time.Duration> c)

decode

public static java.lang.String decode(java.lang.String s)

normalize

public static java.lang.String normalize(java.lang.String s)

objectString

public static java.lang.String objectString(java.lang.String name,
                                            java.lang.Object o)

printFormatted

public static void printFormatted(java.lang.Object o)