Module io.helidon.integrations.common.rest

Package io.helidon.integrations.common.rest

Class ApiJsonParser

java.lang.Object

io.helidon.integrations.common.rest.ApiJsonParser

Direct Known Subclasses:

ApiResponse, CertificateGet.Response, DbGet.Response, Encrypt.Encrypted, GetCubbyhole.Response, GetKv1.Response, GetKv2.Response, Kv2Metadata, ListSecrets.Response, OciResponseParser

public abstract class ApiJsonParser
extends Object

Helper methods to process a returned JSON.

Constructor Summary

Constructors

Constructor	Description
ApiJsonParser()

Method Summary

Modifier and Type	Method	Description
protected static Optional<Boolean>	isPresent(JsonObject json, String name)	If the property is present on the JSON object, returns a non-empty optional, otherwise returns an empty.
protected static String	stringValue(JsonValue value)	Get a string value from a json value.
protected static Optional<Boolean>	toBoolean(JsonObject json, String name)	Get a boolean value.
protected static Optional<byte[]>	toBytesBase64(JsonObject json, String name)	Get bytes from a base64 string value.
protected static Optional<Double>	toDouble(JsonObject json, String name)	Get a double value.
protected static Optional<Instant>	toInstant(JsonObject json, String name, DateTimeFormatter formatter)	Get an Instant value.
protected static Optional<Integer>	toInt(JsonObject json, String name)	Get an int value.
protected static List<String>	toList(JsonObject json, String name)	Convert a JSON array in the JSON object to a list of strings.
protected static Optional<Long>	toLong(JsonObject json, String name)	Get a long value.
protected static Map<String,String>	toMap(JsonObject json, String name)	Get a map value.
protected static Optional<JsonObject>	toObject(JsonObject json, String name)	Get a child JSON object.
protected static Optional<String>	toString(JsonObject json, String name)	Get a string value.

Methods inherited from class java.lang.Object

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

Constructor Detail

ApiJsonParser

public ApiJsonParser()

Method Detail

stringValue

protected static String stringValue(JsonValue value)

Get a string value from a json value.

Parameters:

value - Json value

Returns:

string representation of the value.

Throws:

ApiException - in case the value is array or object

toList

protected static List<String> toList(JsonObject json,
                                     String name)

Convert a JSON array in the JSON object to a list of strings.

Parameters:

json - JSON object

name - name of the array in the object

Returns:

list from the array, or empty if the array does not exist or is null

toBytesBase64

protected static Optional<byte[]> toBytesBase64(JsonObject json,
                                                String name)

Get bytes from a base64 string value.

Parameters:

json - JSON object

name - name of the property

Returns:

bytes or empty if the property does not exist or is null

toObject

protected static Optional<JsonObject> toObject(JsonObject json,
                                               String name)

Get a child JSON object.

Parameters:

json - JSON object

name - name of the property

Returns:

JSON object or empty if the property does not exist or is null

toString

protected static Optional<String> toString(JsonObject json,
                                           String name)

Get a string value.

Parameters:

json - JSON object

name - name of the property

Returns:

string or empty if the property does not exist or is null

toInt

protected static Optional<Integer> toInt(JsonObject json,
                                         String name)

Get an int value.

Parameters:

json - JSON object

name - name of the property

Returns:

int or empty if the property does not exist or is null

toLong

protected static Optional<Long> toLong(JsonObject json,
                                       String name)

Get a long value.

Parameters:

json - JSON object

name - name of the property

Returns:

long or empty if the property does not exist or is null

toDouble

protected static Optional<Double> toDouble(JsonObject json,
                                           String name)

Get a double value.

Parameters:

json - JSON object

name - name of the property

Returns:

double or empty if the property does not exist or is null

toBoolean

protected static Optional<Boolean> toBoolean(JsonObject json,
                                             String name)

Get a boolean value.

Parameters:

json - JSON object

name - name of the property

Returns:

boolean or empty if the property does not exist or is null

toInstant

protected static Optional<Instant> toInstant(JsonObject json,
                                             String name,
                                             DateTimeFormatter formatter)

Get an Instant value.

Parameters:

json - JSON object

name - name of the property

formatter - to use when parsing the string value

Returns:

instant or empty if the property does not exist or is null

toMap

protected static Map<String,String> toMap(JsonObject json,
                                                String name)

Get a map value.

Parameters:

json - JSON object

name - name of the property

Returns:

map with property key/value pairs, or empty if the property does not exist or is null

isPresent

protected static Optional<Boolean> isPresent(JsonObject json,
                                             String name)

If the property is present on the JSON object, returns a non-empty optional, otherwise returns an empty.

Parameters:

json - JSON object

name - name of the property

Returns:

non-empty optional if the property exists and is not null