com.spotify.helios.common

Class Json

java.lang.Object

com.spotify.helios.common.Json

public class Json
extends Object

Constructor Summary

Constructors

Constructor and Description
Json()

Method Summary

Modifier and Type	Method and Description
static byte[]	asBytes(Object value) Serialize an object to json.
static byte[]	asBytesUnchecked(Object value) Serialize an object to json.
static String	asNormalizedString(Object value) Serialize an object to a json string, ordering fields and omitting null and empty fields.
static String	asNormalizedStringUnchecked(Object value) Serialize an object to a json string, ordering fields and omitting null and empty fields.
static String	asPrettyString(Object value) Serialize an object to a json string.
static String	asPrettyStringUnchecked(Object value) Serialize an object to a json string.
static String	asString(Object value) Serialize an object to a json string.
static String	asStringUnchecked(Object value) Serialize an object to a json string.
static <T> T	convert(Object from, Class<T> to)
static <T> T	read(byte[] bytes, Class<T> clazz)
static <T> T	read(byte[] bytes, com.fasterxml.jackson.databind.JavaType javaType)
static <T> T	read(byte[] bytes, com.fasterxml.jackson.core.type.TypeReference<?> typeReference)
static <T> T	read(String content, Class<T> clazz)
static <T> T	read(String content, com.fasterxml.jackson.databind.JavaType javaType)
static <T> T	read(String content, com.fasterxml.jackson.core.type.TypeReference<?> typeReference)
static com.fasterxml.jackson.databind.ObjectReader	reader()
static com.fasterxml.jackson.databind.JsonNode	readTree(byte[] bytes)
static com.fasterxml.jackson.databind.JsonNode	readTree(File file)
static com.fasterxml.jackson.databind.JsonNode	readTree(String content)
static com.fasterxml.jackson.databind.JsonNode	readTreeUnchecked(byte[] bytes)
static com.fasterxml.jackson.databind.JsonNode	readTreeUnchecked(File file)
static com.fasterxml.jackson.databind.JsonNode	readTreeUnchecked(String content)
static <T> T	readUnchecked(byte[] bytes, Class<T> clazz)
static <T> T	readUnchecked(byte[] bytes, com.fasterxml.jackson.databind.JavaType javaType)
static <T> T	readUnchecked(byte[] bytes, com.fasterxml.jackson.core.type.TypeReference<?> typeReference)
static <T> T	readUnchecked(String content, Class<T> clazz)
static <T> T	readUnchecked(String content, com.fasterxml.jackson.databind.JavaType javaType)
static <T> T	readUnchecked(String content, com.fasterxml.jackson.core.type.TypeReference<?> typeReference)
static com.fasterxml.jackson.databind.MappingIterator<com.fasterxml.jackson.databind.JsonNode>	readValues(InputStream stream)
static com.fasterxml.jackson.databind.MappingIterator<Map<String,Object>>	readValues(InputStream stream, com.fasterxml.jackson.core.type.TypeReference<Map<String,Object>> typeReference)
static byte[]	sha1digest(Map<String,?> obj)
static byte[]	sha1digest(Object obj)
static com.fasterxml.jackson.databind.JavaType	type(Type type)
static com.fasterxml.jackson.databind.JavaType	type(com.fasterxml.jackson.core.type.TypeReference<?> typeReference)
static com.fasterxml.jackson.databind.type.TypeFactory	typeFactory()
static com.fasterxml.jackson.databind.ObjectWriter	writer()

Methods inherited from class java.lang.Object

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

Constructor Detail

Json

public Json()

Method Detail

asBytes

public static byte[] asBytes(Object value)
                      throws com.fasterxml.jackson.core.JsonProcessingException

Serialize an object to json. Use when it is not know whether an object can be json serializable.

Parameters:

value - The object to serialize.

Returns:

The byte array for the given object.

Throws:

com.fasterxml.jackson.core.JsonProcessingException - If the json cannot be generated.

See Also:

asBytesUnchecked(Object)

asBytesUnchecked

public static byte[] asBytesUnchecked(Object value)

Serialize an object to json. Use when object is expected to be json serializable.

Parameters:

value - The object to serialize.

Returns:

The byte array for the given object.

See Also:

asBytes(Object)

asString

public static String asString(Object value)
                       throws com.fasterxml.jackson.core.JsonProcessingException

Serialize an object to a json string. Use when it is not know whether an object can be json serializable.

Parameters:

value - The object to serialize.

Returns:

The serialized object.

Throws:

com.fasterxml.jackson.core.JsonProcessingException - If the json cannot be generated.

See Also:

asStringUnchecked(Object)

asStringUnchecked

public static String asStringUnchecked(Object value)

Serialize an object to a json string. Use when object is expected to be json serializable.

Parameters:

value - The object to serialize.

Returns:

The serialized object.

See Also:

asString(Object)

asPrettyString

public static String asPrettyString(Object value)
                             throws com.fasterxml.jackson.core.JsonProcessingException

Serialize an object to a json string. Use when it is not know whether an object can be json serializable.

Parameters:

value - The object to serialize.

Returns:

The serialized object.

Throws:

com.fasterxml.jackson.core.JsonProcessingException - If the json cannot be generated.

See Also:

asPrettyStringUnchecked(Object)

asPrettyStringUnchecked

public static String asPrettyStringUnchecked(Object value)

Serialize an object to a json string. Use when object is expected to be json serializable.

Parameters:

value - The object to serialize.

Returns:

The serialized object.

See Also:

asPrettyString(Object)

asNormalizedString

public static String asNormalizedString(Object value)
                                 throws com.fasterxml.jackson.core.JsonProcessingException

Serialize an object to a json string, ordering fields and omitting null and empty fields. Use when it is not know whether an object can be json serializable.

Parameters:

value - The object to serialize.

Returns:

The serialized object.

Throws:

com.fasterxml.jackson.core.JsonProcessingException - If the json cannot be generated.

See Also:

asPrettyStringUnchecked(Object)

asNormalizedStringUnchecked

public static String asNormalizedStringUnchecked(Object value)

Serialize an object to a json string, ordering fields and omitting null and empty fields. Use when object is expected to be json serializable.

Parameters:

value - The object to serialize.

Returns:

The serialized object.

See Also:

asPrettyString(Object)

read

public static <T> T read(String content,
                         Class<T> clazz)
                  throws IOException

Throws:

IOException

read

public static <T> T read(String content,
                         com.fasterxml.jackson.core.type.TypeReference<?> typeReference)
                  throws IOException

Throws:

IOException

read

public static <T> T read(String content,
                         com.fasterxml.jackson.databind.JavaType javaType)
                  throws IOException

Throws:

IOException

read

public static <T> T read(byte[] bytes,
                         Class<T> clazz)
                  throws IOException

Throws:

IOException

read

public static <T> T read(byte[] bytes,
                         com.fasterxml.jackson.core.type.TypeReference<?> typeReference)
                  throws IOException

Throws:

IOException

read

public static <T> T read(byte[] bytes,
                         com.fasterxml.jackson.databind.JavaType javaType)
                  throws IOException

Throws:

IOException

readUnchecked

public static <T> T readUnchecked(String content,
                                  Class<T> clazz)

readUnchecked

public static <T> T readUnchecked(String content,
                                  com.fasterxml.jackson.core.type.TypeReference<?> typeReference)

readUnchecked

public static <T> T readUnchecked(String content,
                                  com.fasterxml.jackson.databind.JavaType javaType)

readUnchecked

public static <T> T readUnchecked(byte[] bytes,
                                  Class<T> clazz)

readUnchecked

public static <T> T readUnchecked(byte[] bytes,
                                  com.fasterxml.jackson.core.type.TypeReference<?> typeReference)

readUnchecked

public static <T> T readUnchecked(byte[] bytes,
                                  com.fasterxml.jackson.databind.JavaType javaType)

readValues

public static com.fasterxml.jackson.databind.MappingIterator<Map<String,Object>> readValues(InputStream stream,
                                                                                            com.fasterxml.jackson.core.type.TypeReference<Map<String,Object>> typeReference)
                                                                                     throws IOException

Throws:

IOException

readValues

public static com.fasterxml.jackson.databind.MappingIterator<com.fasterxml.jackson.databind.JsonNode> readValues(InputStream stream)
                                                                                                          throws IOException

Throws:

IOException

readTree

public static com.fasterxml.jackson.databind.JsonNode readTree(byte[] bytes)
                                                        throws IOException

Throws:

IOException

readTree

public static com.fasterxml.jackson.databind.JsonNode readTree(String content)
                                                        throws IOException

Throws:

IOException

readTree

public static com.fasterxml.jackson.databind.JsonNode readTree(File file)
                                                        throws IOException

Throws:

IOException

readTreeUnchecked

public static com.fasterxml.jackson.databind.JsonNode readTreeUnchecked(byte[] bytes)

readTreeUnchecked

public static com.fasterxml.jackson.databind.JsonNode readTreeUnchecked(String content)

readTreeUnchecked

public static com.fasterxml.jackson.databind.JsonNode readTreeUnchecked(File file)

type

public static com.fasterxml.jackson.databind.JavaType type(Type type)

type

public static com.fasterxml.jackson.databind.JavaType type(com.fasterxml.jackson.core.type.TypeReference<?> typeReference)

typeFactory

public static com.fasterxml.jackson.databind.type.TypeFactory typeFactory()

reader

public static com.fasterxml.jackson.databind.ObjectReader reader()

writer

public static com.fasterxml.jackson.databind.ObjectWriter writer()

convert

public static <T> T convert(Object from,
                            Class<T> to)

sha1digest

public static byte[] sha1digest(Object obj)
                         throws IOException

Throws:

IOException

sha1digest

public static byte[] sha1digest(Map<String,?> obj)
                         throws IOException

Throws:

IOException