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package com.fasterxml.jackson.jr.ob;
import java.io.*;
import java.net.URL;
import java.util.*;
import com.fasterxml.jackson.core.*;
import com.fasterxml.jackson.core.io.SegmentedStringWriter;
import com.fasterxml.jackson.core.util.ByteArrayBuilder;
import com.fasterxml.jackson.core.util.Instantiatable;
import com.fasterxml.jackson.jr.ob.api.*;
import com.fasterxml.jackson.jr.ob.comp.CollectionComposer;
import com.fasterxml.jackson.jr.ob.comp.ComposerBase;
import com.fasterxml.jackson.jr.ob.comp.MapComposer;
import com.fasterxml.jackson.jr.ob.impl.*;
/**
* Main entry point for functionality for reading and writing JSON
* and configuring details of reading and writing.
*
* Note that instances are fully immutable, and thereby thread-safe.
*
* Note on source types: source to read is declared as {@link java.lang.Object}
* but covers following types:
*
* - {@link InputStream}
* - {@link Reader}
* - {@code byte[]}
* - {@code char[]}
* - {@link String}/{@link CharSequence}
* - {@link URL}
* - {@link File}
*
*
*/
@SuppressWarnings("resource")
public class JSON implements Versioned
{
/**
* Simple on/off (enabled/disabled) features for {@link JSON}; used for simple
* configuration aspects.
*/
public enum Feature
{
/*
/**********************************************************************
/* Read-related features that do not affect caching
/**********************************************************************
*/
/**
* When reading JSON Numbers, should {@link java.math.BigDecimal} be used
* for floating-point numbers; or should {@link java.lang.Double} be used.
* Trade-off is between accuracy -- only {@link java.math.BigDecimal} is
* guaranteed to store the EXACT decimal value parsed -- and performance
* ({@link java.lang.Double} is typically faster to parse).
*
* Default setting is false, meaning that {@link java.lang.Double}
* is used.
*/
USE_BIG_DECIMAL_FOR_FLOATS(false),
/**
* When reading JSON Arrays, should matching Java value be of type
* Object[] (true) or {@link java.util.List} (false)?
*
* Default setting is false, meaning that JSON Arrays
* are bound to {@link java.util.List}s.
*/
READ_JSON_ARRAYS_AS_JAVA_ARRAYS(false),
/**
* This feature can be enabled to reduce memory usage for use cases where
* resulting container objects ({@link java.util.Map}s and {@link java.util.Collection}s)
* do not need to mutable (that is, their contents can not changed).
* If set, reader is allowed to construct immutable (read-only)
* container objects; and specifically empty {@link java.util.Map}s and
* {@link java.util.Collection}s can be used to reduce number of
* objects allocated. In addition, sizes of non-empty containers can
* be trimmed to exact size.
*
* Default setting is false, meaning that reader will have to
* construct mutable container instance when reading.
*/
READ_ONLY(false),
/**
* This feature can be used to indicate that the reader should preserve
* order of the properties same as what input document has.
* Note that it is up to {@link com.fasterxml.jackson.jr.ob.api.MapBuilder}
* to support this feature; custom implementations may ignore the setting.
*
* Default setting is true, meaning that reader is expected to try to
* preserve ordering of fields read.
*/
PRESERVE_FIELD_ORDERING(true),
/**
* This feature determines whether {@link Map} instances constructed use
* deferred materialization (as implemented by {@link DeferredMap}), in case
* user has not specified custom {@link Map} implementation.
* Enabling feature typically reduces initial value read time and moves
* overhead to actual access of contents (materialization occurs when first
* key or value access happens); this makes sense when only a subset of
* data is accessed. Conversely, when traversing full object hierarchy, it
* makes sense to disable this feature.
*
* Default setting is true, meaning that reader is expected to try to
*/
USE_DEFERRED_MAPS(true),
/**
* When encountering duplicate keys for JSON Objects, should an exception
* be thrown or not? If exception is not thrown, the last instance
* from input document will be used.
*
* Default setting is true, meaning that a
* {@link JSONObjectException} will be thrown if duplicates are encountered.
*/
FAIL_ON_DUPLICATE_MAP_KEYS(true),
/**
* When encountering a JSON Object property name for which there is no
* matching Bean property, should an exception be thrown (true),
* or should JSON Property value be quietly skipped (false)?
*
* Default setting is false, meaning that unmappable
* JSON Object properties will simply be ignored.
*/
FAIL_ON_UNKNOWN_BEAN_PROPERTY(false),
/*
/**********************************************************************
/* Write-related features that do not affect caching
/**********************************************************************
*/
/**
* Feature that defines what to do with {@link java.util.Map} entries and Java Bean
* properties that have null as value: if enabled, they will be written out normally;
* if disabled, such entries and properties will be ignored.
*
* Default setting is false so that any null-valued properties
* are ignored during serialization.
*/
WRITE_NULL_PROPERTIES(false),
/**
* Feature that determines whether Enum values are written using
* numeric index (true), or String representation from calling
* {@link Enum#toString()} (false).
*
* Feature is disabled by default,
* so that Enums are serialized as JSON Strings.
*/
WRITE_ENUMS_USING_INDEX(false),
/**
* Feature that determines whether Date (and date/time) values
* (and Date-based things like {@link java.util.Calendar}s) are to be
* serialized as numeric timestamps (true),
* or using a textual representation (false)
*
* Feature is disabled by default, so that date/time values are
* serialized as text, NOT timestamp.
*
* @since 2.7
*/
WRITE_DATES_AS_TIMESTAMP(false),
/**
* Feature that can be enabled to use "pretty-printing", basic indentation
* to make resulting JSON easier to read by humans by adding white space
* such as line feeds and indentation.
*
* Default setting is false so that no pretty-printing is done
* (unless explicitly constructed with a pretty printer object)
*/
PRETTY_PRINT_OUTPUT(false),
/**
* Feature that determines whether JsonGenerator.flush() is
* called after write() method that takes JsonGenerator
* as an argument completes (that is, does NOT affect methods
* that use other destinations).
* This usually makes sense; but there are cases where flushing
* should not be forced: for example when underlying stream is
* compressing and flush() causes compression state to be flushed
* (which occurs with some compression codecs).
*
* Feature is enabled by default.
*/
FLUSH_AFTER_WRITE_VALUE(true),
/**
* Feature that determines what happens when we encounter a value of
* unrecognized type for which we do not have standard handler: if enabled,
* will throw a {@link JSONObjectException}, if disabled simply
* calls {@link Object#toString} and uses that JSON String as serialization.
*
* NOTE: if {@link #HANDLE_JAVA_BEANS} is enabled, this setting typically
* has no effect, since otherwise unknown types are recognized as
* Bean types.
*
*
* Feature is disabled by default
* so that no exceptions are thrown.
*/
FAIL_ON_UNKNOWN_TYPE_WRITE(false),
/*
/**********************************************************************
/* Features that affect introspection and thereby affect caching
/**********************************************************************
*/
/**
* Feature that determines whether Bean types (Java objects with
* getters and setters that expose state to serialize) will be
* recognized and handled or not.
* When enabled, any types that are not recognized as standard JDK
* data structures, primitives or wrapper values will be introspected
* and handled as Java Beans (can be read/written as long as JSON
* matches properties discovered); when disabled, they may only be serialized
* (using {@link Object#toString} method), and can not be deserialized.
*
* Feature is enabled by default, but can be disabled do avoid use
* of Bean reflection for cases where it is not desired.
*/
HANDLE_JAVA_BEANS(true, true),
/**
* Feature that determines whether "read-only" properties of Beans
* (properties that only have a getter but no matching setter) are
* to be included in Bean serialization or not; if disabled,
* only properties have have both setter and getter are serialized.
* Note that feature is only used if {@link #HANDLE_JAVA_BEANS}
* is also enabled.
*
* Feature is enabled by default,
* so that all Bean properties are serialized.
*/
WRITE_READONLY_BEAN_PROPERTIES(true, true),
/**
* Feature that determines whether access to {@link java.lang.reflect.Method}s and
* {@link java.lang.reflect.Constructor}s that are used with dynamically
* introspected Beans may be forced using
* {@link java.lang.reflect.AccessibleObject#setAccessible} or not.
*
* Feature is enabled by default, so that access may be forced.
*/
FORCE_REFLECTION_ACCESS(true, true),
/**
* Whether "is-getters" (like public boolean isValuable()) are detected
* for use or not. Note that in addition to naming, and lack of arguments, return
* value also has to be boolean or java.lang.Boolean.
*
* @since 2.5
*/
USE_IS_GETTERS(true, true),
/**
* Feature that provides serialization support for Groovy and Java 17 records, by allowing
* reading of "non-get-getters" in a class, (like for a field named amount
* the getter would be amount()).
*
* Feature is disabled by default for backward compatibility.
*
* @since 2.17
*/
USE_FIELD_MATCHING_GETTERS(false,true),
/**
* Feature that enables use of public fields instead of setters and getters,
* in cases where no setter/getter is available.
*
* Feature is enabled by default since 2.10 (but was disabled for
* 2.8 and 2.9), so public fields are discovered by default.
*
* @since 2.8 (enabled by default since 2.10)
*/
USE_FIELDS(true, true),
/**
* Feature that enables serialization and deserialization of non-final static fields.
*
* Feature did not exist, but was implicitly enabled by default. disabled for
* 2.13).
*
* @since 2.13
*/
INCLUDE_STATIC_FIELDS(false, true),
/**
* Feature that will allow for more forgiving deserialization of incoming JSON. If enabled,
* the bean properties will be matched using their lower-case equivalents, meaning that any
* case-combination (incoming and matching names are canonicalized by lower-casing) should work.
*
* Note that there is additional performance overhead since incoming property names need to be lower-cased
* before comparison, for cases where there are upper-case letters. Overhead for names that are already
* lower-case should be negligible however.
*
* Feature is disabled by default.
*
* @since 2.13
*/
ACCEPT_CASE_INSENSITIVE_PROPERTIES(false, true),
/**
* Feature that determines if Enum deserialization should be case sensitive or not. If enabled,
* Enum deserialization will ignore case, that is, case of incoming String value and enum id
* (dependant on other settings, either `name()`, `toString()`, or explicit override) do not need to
* match.
*
* Feature is disabled by default.
*
* @since 2.13
*/
ACCEPT_CASE_INSENSITIVE_ENUMS(false, true)
;
/*
/**********************************************************************
/* Enum impl
/**********************************************************************
*/
private final boolean _defaultState;
/**
* Flag for features that affect caching of readers, writers,
* and changing of which needs to result in flushing.
*
* @since 2.8
*/
private final boolean _affectsCaching;
private final int _mask;
private Feature(boolean defaultState) {
this(defaultState, false);
}
private Feature(boolean defaultState, boolean affectsCaching) {
_defaultState = defaultState;
_affectsCaching = affectsCaching;
_mask = (1 << ordinal());
}
public static int defaults()
{
int flags = 0;
for (Feature value : values()) {
if (value.enabledByDefault()) {
flags |= value.mask();
}
}
return flags;
}
/**
* Method for calculating bitset of features that force flushing of
* POJO handler caches.
*
* @since 2.8
*/
public static int cacheBreakers()
{
int flags = 0;
for (Feature value : values()) {
if (value.affectsCaching()) {
flags |= value.mask();
}
}
return flags;
}
public final boolean enabledByDefault() { return _defaultState; }
public final boolean affectsCaching() { return _affectsCaching; }
public final int mask() { return _mask; }
public final boolean isDisabled(int flags) {
return (flags & _mask) == 0;
}
public final boolean isEnabled(int flags) {
return (flags & _mask) != 0;
}
}
// Important: has to come before 'std' instance, since it refers to it
final static int DEFAULT_FEATURES = Feature.defaults();
public final static int CACHE_FLAGS = Feature.cacheBreakers();
/**
* Singleton instance with standard, default configuration.
* May be used with direct references like:
*
* String json = JSON.std.asString(map);
*
*/
public final static JSON std = new JSON();
/*
/**********************************************************************
/* Configuration, helper objects
/**********************************************************************
*/
/**
* Underlying JSON factory used for creating Streaming parsers and
* generators.
*/
protected final JsonFactory _jsonFactory;
/**
* Optional handler for {@link TreeNode} values: if defined, we can
* read and write {@link TreeNode} instances that codec supports.
*/
protected final TreeCodec _treeCodec;
// @since 2.11
protected final ValueReaderLocator _valueReaderLocator;
// @since 2.11
protected final ValueWriterLocator _valueWriterLocator;
/**
* Blueprint instance of the reader to use for reading JSON as simple
* Objects.
*/
protected final JSONReader _reader;
/**
* Blueprint instance of the writer to use for writing JSON given
* simple Objects.
*/
protected final JSONWriter _writer;
/*
/**********************************************************************
/* Configuration, simple settings
/**********************************************************************
*/
protected final int _features;
protected final PrettyPrinter _prettyPrinter;
/*
/**********************************************************************
/* Builder
/**********************************************************************
*/
/**
* Builder class that needs to be used for certain kind of "static" configuration
* (settings that can not vary on per-call basis for {@link JSON}), such as
* Extension registration.
*
* @since 2.11
*/
public static class Builder {
// Configuration, simple settings
protected int _features = DEFAULT_FEATURES;
protected PrettyPrinter _prettyPrinter;
// Configuration, helper objects
protected final JsonFactory _streamFactory;
protected TreeCodec _treeCodec;
protected JSONReader _reader;
protected JSONWriter _writer;
protected MapBuilder _mapBuilder;
protected CollectionBuilder _collectionBuilder;
// Configuration, extensions
protected ExtContextImpl _extContext;
public Builder(JsonFactory f) {
_streamFactory = f;
}
public JSON build() {
return new JSON(this);
}
// // // Mutators, features
/**
* Method for registering given extension to be used by {@link JSON}
* this builder builds.
*
* @param extension Extension to register
*
* @return This builder for call chaining
*/
public Builder register(JacksonJrExtension extension) {
if (_extContext == null) {
_extContext = new ExtContextImpl(this);
}
extension.register(_extContext);
return this;
}
public Builder set(Feature feature, boolean state) {
if (state) {
_features |= feature.mask();
} else {
_features &= ~feature.mask();
}
return this;
}
/**
* Method for enabling a set of Features for {@link JSON} to be built.
*
* @param features Features to enable
*
* @return This builder for call chaining
*/
public Builder enable(Feature ... features)
{
for (Feature feature : features) {
_features |= feature.mask();
}
return this;
}
/**
* Method for disabling a set of Features for {@link JSON} to be built.
*
* @param features Features to disable
*
* @return This builder for call chaining
*/
public Builder disable(Feature ... features)
{
for (Feature feature : features) {
_features &= ~feature.mask();
}
return this;
}
// // // Mutators, helper objects
/**
* Method for specifying {@link PrettyPrinter} {@link JSON} to be built
* should use on serialization.
*
* @param pp Pretty printer to use
*
* @return This builder for call chaining
*/
public Builder prettyPrinter(PrettyPrinter pp) {
_prettyPrinter = pp;
return this;
}
/**
* Method for specifying {@link TreeCodec} {@link JSON} to be built
* should use for reading and writing {@link TreeNode} values.
*
* Note: by default no {@link TreeCodec} is configured.
*
* @param tc TreeCodec to use
*
* @return This builder for call chaining
*
* @deprecated Since 2.18 should register codec using Extension mechanism
* (using {@link #register(JacksonJrExtension)}).
*/
@Deprecated // since 2.18
public Builder treeCodec(TreeCodec tc) {
_treeCodec = tc;
return this;
}
public Builder jsonReader(JSONReader r) {
if (_collectionBuilder != null) {
r = r.with(_collectionBuilder);
}
if (_mapBuilder != null) {
r = r.with(_mapBuilder);
}
_reader = r;
return this;
}
public Builder jsonWriter(JSONWriter w) {
_writer = w;
return this;
}
public Builder collectionBuilder(CollectionBuilder b) {
_collectionBuilder = b;
if (_reader != null) {
_reader = _reader.with(b);
}
return this;
}
public Builder mapBuilder(MapBuilder b) {
_mapBuilder = b;
if (_reader != null) {
_reader = _reader.with(b);
}
return this;
}
// // // Accessors
public boolean isEnabled(Feature f) {
return f.isEnabled(_features);
}
public int featureMask() { return _features; }
public PrettyPrinter prettyPrinter() { return _prettyPrinter; }
public JsonFactory streamFactory() { return _streamFactory; }
public TreeCodec treeCodec() { return _treeCodec; }
public ReaderWriterModifier readerWriterModifier() {
return (_extContext == null) ? null : _extContext._rwModifier;
}
public ReaderWriterProvider readerWriterProvider() {
return (_extContext == null) ? null : _extContext._rwProvider;
}
public JSONReader jsonReader() {
// create default impl dynamically if necessary
if (_reader == null) {
_reader = new JSONReader(collectionBuilder(), mapBuilder());
}
return _reader;
}
public JSONWriter jsonWriter() {
// create default impl dynamically if necessary
if (_writer == null) {
_writer = new JSONWriter();
}
return _writer;
}
public MapBuilder mapBuilder() {
if (_mapBuilder == null) {
_mapBuilder = MapBuilder.defaultImpl();
}
return _mapBuilder;
}
public CollectionBuilder collectionBuilder() {
if (_collectionBuilder == null) {
_collectionBuilder = CollectionBuilder.defaultImpl();
}
return _collectionBuilder;
}
}
/*
/**********************************************************************
/* Basic construction
/**********************************************************************
*/
public JSON() {
this(new JsonFactory());
}
public JSON(JsonFactory jsonF)
{
_features = DEFAULT_FEATURES;
_jsonFactory = jsonF;
_treeCodec = null;
_valueReaderLocator = ValueReaderLocator.blueprint(null, null);
_valueWriterLocator = ValueWriterLocator.blueprint(null, null);
_reader = _defaultReader();
_writer = _defaultWriter();
_prettyPrinter = null;
}
/**
* Constructor used when creating instance using {@link Builder}.
*
* @param b Builder that has configured settings to use.
*
* @since 2.11
*/
public JSON(Builder b) {
_features = b.featureMask();
_jsonFactory = b.streamFactory();
_treeCodec = b.treeCodec();
final ReaderWriterProvider rwProvider = b.readerWriterProvider();
final ReaderWriterModifier rwModifier = b.readerWriterModifier();
ValueReaderLocator rloc = ValueReaderLocator.blueprint(null, null);
ValueWriterLocator wloc = ValueWriterLocator.blueprint(null, null);
if (rwProvider != null) {
rloc = rloc.with(rwProvider);
wloc = wloc.with(rwProvider);
}
if (rwModifier != null) {
rloc = rloc.with(rwModifier);
wloc = wloc.with(rwModifier);
}
_valueReaderLocator = rloc;
_valueWriterLocator = wloc;
_reader = b.jsonReader();
_writer = b.jsonWriter();
_prettyPrinter = b.prettyPrinter();
}
/**
* @since 2.11
*/
public static Builder builder() {
return builder(new JsonFactory());
}
/**
* @since 2.11
*/
public static Builder builder(JsonFactory streamFactory) {
return new Builder(streamFactory);
}
protected JSON(JSON base,
int features,
JsonFactory jsonF, TreeCodec trees,
JSONReader r, JSONWriter w,
PrettyPrinter pp)
{
_features = features;
_jsonFactory = jsonF;
_treeCodec = trees;
_valueReaderLocator = base._valueReaderLocator;
_valueWriterLocator = base._valueWriterLocator;
_reader = r;
_writer = w;
_prettyPrinter = pp;
}
protected JSON(JSON base, ValueReaderLocator rloc, ValueWriterLocator wloc) {
_features = base._features;
_jsonFactory = base._jsonFactory;
_treeCodec = base._treeCodec;
_valueReaderLocator = rloc;
_valueWriterLocator = wloc;
_reader = base._reader;
_writer = base._writer;
_prettyPrinter = base._prettyPrinter;
}
protected JSONReader _defaultReader() {
return new JSONReader(CollectionBuilder.defaultImpl(), MapBuilder.defaultImpl());
}
protected JSONWriter _defaultWriter() {
return new JSONWriter();
}
/*
/**********************************************************************
/* Adapting
/**********************************************************************
*/
/**
* Convenience method for constructing an adapter that uses this
* instance as a {@link ObjectCodec}
*
* @return Wrapper over this object to adapt to {@link ObjectCodec} API
*/
public ObjectCodec asCodec() {
return new JSONAsObjectCodec(this);
}
/*
/**********************************************************************
/* Versioned
/**********************************************************************
*/
@Override
public Version version() {
return PackageVersion.VERSION;
}
/*
/**********************************************************************
/* Mutant factories, supported
/**********************************************************************
*/
/**
* Mutant factory for constructing an instance with specified {@link PrettyPrinter},
* and returning new instance (or, if there would be no change, this instance).
*
* @param pp {@link PrettyPrinter} to use for pretty-printing output (of {@code null} to disable
* pretty-printing)
*
* @return New instance with specified {@link PrettyPrinter} (if not same as currently configured);
* {@code this} otherwise.
*/
public JSON with(PrettyPrinter pp)
{
if (_prettyPrinter == pp) {
return this;
}
return _with(_features, _jsonFactory, _treeCodec,
_reader, _writer, pp);
}
/**
* Mutant factory for constructing an instance with specified feature
* enabled or disabled (depending on state), and returning
* an instance with that setting; this may either be this instance (if feature
* already had specified state), or a newly constructed instance.
*/
public JSON with(Feature feature, boolean state)
{
int f = _features;
if (state) {
f |= feature.mask();
} else {
f &= ~feature.mask();
}
return _with(f);
}
/**
* Mutant factory for constructing an instance with specified features
* enabled.
*/
public JSON with(Feature ... features)
{
int flags = _features;
for (Feature feature : features) {
flags |= feature.mask();
}
return _with(flags);
}
/**
* Mutant factory for constructing an instance with specified features
* disabled.
*/
public JSON without(Feature ... features)
{
int flags = _features;
for (Feature feature : features) {
flags &= ~feature.mask();
}
return _with(flags);
}
/**
* Internal mutant factory method used for constructing
*/
protected final JSON _with(int features)
{
if (_features == features) {
return this;
}
// 07-Jun-2019, tatu: May need to force clearing of state if cache-afflicted
// changes
JSONReader r = _reader.withCacheCheck(features);
JSONWriter w = _writer.withCacheCheck(features);
return _with(features, _jsonFactory, _treeCodec,
r, w, _prettyPrinter);
}
/*
/**********************************************************************
/* Mutant factories, deprecated
/**********************************************************************
*/
/**
* Mutant factory method for constructing new instance with specified {@link JsonFactory}
* if different from currently configured one (if not, return {@code this} as-is)
*
* @param f Jackson core format factory to use for low-level decoding/encoding
*
* @return New instance with specified factory (if not same as currently configured);
* {@code this} otherwise.
*
* @deprecated Since 2.11 should not try changing underlying stream factory but create
* a new instance if necessary: method will be removed from 3.0 at latest
*/
@Deprecated
public JSON with(JsonFactory f) {
return _with(_features, f, _treeCodec, _reader, _writer, _prettyPrinter);
}
/**
* Mutant factory for constructing an instance with specified {@link TreeCodec},
* and returning new instance (or, if there would be no change, this instance).
*
* @param c Tree codec to use for reading/writing of tree representation
*
* @return New instance with specified codec (if not same as currently configured);
* {@code this} otherwise.
*
* @deprecated Since 2.11 should try using builder (see {@link #builder()} and create
* properly configured instance
*/
@Deprecated
public JSON with(TreeCodec c)
{
if (c == _treeCodec) {
return this;
}
return _with(_features, _jsonFactory, c,
_reader, _writer, _prettyPrinter);
}
/**
* Mutant factory for constructing an instance with specified {@link JSONReader},
* and returning new instance (or, if there would be no change, this instance).
*
* @param r Customized {@link JSONReader} to use instead of standard one
*
* @return New instance with specified {@link JSONReader} (if not same as currently configured);
* {@code this} otherwise.
*
* @deprecated Since 2.11 should try using builder (see {@link #builder()} and create
* properly configured instance
*/
@Deprecated
public JSON with(JSONReader r)
{
if (r == _reader) {
return this;
}
return _with(_features, _jsonFactory, _treeCodec,
r, _writer, _prettyPrinter);
}
/**
* Mutant factory for constructing an instance with specified {@link JSONWriter},
* and returning new instance (or, if there would be no change, this instance).
*
* @param w Customized {@link JSONWriter} to use instead of standard one
*
* @return New instance with specified {@link JSONWriter} (if not same as currently configured);
* {@code this} otherwise.
*
* @deprecated Since 2.11 should try using builder (see {@link #builder()} and create
* properly configured instance
*/
@Deprecated
public JSON with(JSONWriter w)
{
if (w == _writer) {
return this;
}
return _with( _features, _jsonFactory, _treeCodec,
_reader, w, _prettyPrinter);
}
/**
* Mutant factory for constructing an instance with specified {@link MapBuilder},
* and returning new instance (or, if there would be no change, this instance).
*/
public JSON with(MapBuilder b) {
JSONReader r = _reader.with(b);
if (r == _reader) {
return this;
}
return _with(_features, _jsonFactory, _treeCodec,
r, _writer, _prettyPrinter);
}
/**
* Mutant factory for constructing an instance with specified {@link CollectionBuilder},
* and returning new instance (or, if there would be no change, this instance).
*/
public JSON with(CollectionBuilder b) {
JSONReader r = _reader.with(b);
if (r == _reader) {
return this;
}
return _with(_features, _jsonFactory, _treeCodec,
r, _writer, _prettyPrinter);
}
/**
* Mutant factory for constructing an instance with specified {@link ReaderWriterProvider},
* and returning new instance (or, if there would be no change, this instance).
*
* @deprecated Since 2.11 should register using {@link JacksonJrExtension}
*/
@Deprecated
public JSON with(ReaderWriterProvider rwp) {
ValueReaderLocator rloc = _valueReaderLocator.with(rwp);
ValueWriterLocator wloc = _valueWriterLocator.with(rwp);
if ((rloc == _valueReaderLocator) && (wloc == _valueWriterLocator)) {
return this;
}
return new JSON(this, rloc, wloc);
}
/*
/**********************************************************************
/* Methods sub-classes must override
/**********************************************************************
*/
protected JSON _with(int features,
JsonFactory jsonF, TreeCodec trees,
JSONReader reader, JSONWriter writer,
PrettyPrinter pp)
{
return new JSON(this, features, jsonF, trees, reader, writer, pp);
}
/*
/**********************************************************************
/* Simple accessors
/**********************************************************************
*/
public TreeCodec getTreeCodec() {
return _treeCodec;
}
public JsonFactory getStreamingFactory() {
return _jsonFactory;
}
public final boolean isEnabled(Feature f) {
return (f.mask() & _features) != 0;
}
/*
/**********************************************************************
/* Public factory methods for parsers, generators
/**********************************************************************
*/
/**
* Factory method for opening a {@link JsonParser} to read content from one of
* following supported sources
*
* - {@link InputStream}
* - {@link Reader}
* - {@code byte[]}
* - {@code char[]}
* - {@link String}/{@link CharSequence}
* - {@link URL}
* - {@link File}
*
*
* Rules regarding closing of the underlying source follow rules
* that {@link JsonFactory} has for its {@code createParser} method.
*
* @since 2.10
*/
public JsonParser createParser(Object source) throws IOException, JSONObjectException {
return _parser(source);
}
/*
/**********************************************************************
/* API: writing Simple objects as JSON
/**********************************************************************
*/
public String asString(Object value) throws IOException, JSONObjectException
{
SegmentedStringWriter sw = new SegmentedStringWriter(_jsonFactory._getBufferRecycler());
try {
_writeAndClose(value, _jsonFactory.createGenerator(sw));
} catch (JsonProcessingException e) {
throw e;
} catch (IOException e) { // shouldn't really happen, but is declared as possibility so:
throw JSONObjectException.fromUnexpectedIOE(e);
}
return sw.getAndClear();
}
public byte[] asBytes(Object value) throws IOException, JSONObjectException
{
ByteArrayBuilder bb = new ByteArrayBuilder(_jsonFactory._getBufferRecycler());
try {
_writeAndClose(value, _jsonFactory.createGenerator(bb, JsonEncoding.UTF8));
} catch (JsonProcessingException e) {
throw e;
} catch (IOException e) { // shouldn't really happen, but is declared as possibility so:
throw JSONObjectException.fromUnexpectedIOE(e);
}
byte[] result = bb.toByteArray();
bb.release();
return result;
}
public void write(Object value, JsonGenerator gen) throws IOException, JSONObjectException {
// NOTE: no call to _config(); assumed to be fully configured
_writerForOperation(gen).writeValue(value);
if (Feature.FLUSH_AFTER_WRITE_VALUE.isEnabled(_features)) {
gen.flush();
}
}
public void write(Object value, OutputStream out) throws IOException, JSONObjectException {
_writeAndClose(value, _jsonFactory.createGenerator(out));
}
public void write(Object value, Writer w) throws IOException, JSONObjectException {
_writeAndClose(value, _jsonFactory.createGenerator(w));
}
public void write(Object value, File f) throws IOException, JSONObjectException {
_writeAndClose(value, _jsonFactory.createGenerator(f, JsonEncoding.UTF8));
}
/*
/**********************************************************************
/* API: writing using Composers
/**********************************************************************
*/
public JSONComposer composeUsing(JsonGenerator gen) throws IOException, JSONObjectException {
return JSONComposer.streamComposer(_features, gen, false);
}
public JSONComposer composeTo(OutputStream out) throws IOException, JSONObjectException {
return JSONComposer.streamComposer(_features,
_config(_jsonFactory.createGenerator(out)), true);
}
public JSONComposer composeTo(Writer w) throws IOException, JSONObjectException {
return JSONComposer.streamComposer(_features,
_config(_jsonFactory.createGenerator(w)), true);
}
public JSONComposer composeTo(File f) throws IOException, JSONObjectException {
return JSONComposer.streamComposer(_features,
_config(_jsonFactory.createGenerator(f, JsonEncoding.UTF8)), true);
}
public JSONComposer composeString() throws IOException, JSONObjectException {
SegmentedStringWriter out = new SegmentedStringWriter(_jsonFactory._getBufferRecycler());
JsonGenerator gen = _config(_jsonFactory.createGenerator(out)
.setCodec(asCodec()));
return JSONComposer.stringComposer(_features, gen, out);
}
public JSONComposer composeBytes() throws IOException, JSONObjectException {
ByteArrayBuilder out = new ByteArrayBuilder(_jsonFactory._getBufferRecycler());
JsonGenerator gen = _config(_jsonFactory.createGenerator(out)
.setCodec(asCodec()));
return JSONComposer.bytesComposer(_features, gen, out);
}
public CollectionComposer> composeList() {
List