com.google.protobuf.util

Class JsonFormat.PrinterImpl

java.lang.Object

com.google.protobuf.util.JsonFormat.PrinterImpl

Enclosing class:

JsonFormat

private static final class JsonFormat.PrinterImpl
extends java.lang.Object

A Printer converts protobuf messages to JSON format.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
private static class	JsonFormat.PrinterImpl.GsonHolder
private static interface	JsonFormat.PrinterImpl.WellKnownTypePrinter

Field Summary

Fields

Modifier and Type	Field and Description
private boolean	alwaysOutputDefaultValueFields
private java.lang.CharSequence	blankOrNewLine
private java.lang.CharSequence	blankOrSpace
private JsonFormat.TextGenerator	generator
private com.google.gson.Gson	gson
private java.util.Set<Descriptors.FieldDescriptor>	includingDefaultValueFields
private boolean	preservingProtoFieldNames
private boolean	printingEnumsAsInts
private JsonFormat.TypeRegistry	registry
private static java.util.Map<java.lang.String,JsonFormat.PrinterImpl.WellKnownTypePrinter>	wellKnownTypePrinters

Constructor Summary

Constructors

Constructor and Description
PrinterImpl(JsonFormat.TypeRegistry registry, boolean alwaysOutputDefaultValueFields, java.util.Set<Descriptors.FieldDescriptor> includingDefaultValueFields, boolean preservingProtoFieldNames, java.lang.Appendable jsonOutput, boolean omittingInsignificantWhitespace, boolean printingEnumsAsInts)

Method Summary

Modifier and Type	Method and Description
private static java.util.Map<java.lang.String,JsonFormat.PrinterImpl.WellKnownTypePrinter>	buildWellKnownTypePrinters()
(package private) void	print(MessageOrBuilder message)
private void	print(MessageOrBuilder message, java.lang.String typeUrl) Prints a regular message with an optional type URL.
private void	printAny(MessageOrBuilder message) Prints google.protobuf.Any
private void	printDuration(MessageOrBuilder message) Prints google.protobuf.Duration
private void	printField(Descriptors.FieldDescriptor field, java.lang.Object value)
private void	printFieldMask(MessageOrBuilder message) Prints google.protobuf.FieldMask
private void	printListValue(MessageOrBuilder message) Prints google.protobuf.ListValue
private void	printMapFieldValue(Descriptors.FieldDescriptor field, java.lang.Object value)
private void	printRepeatedFieldValue(Descriptors.FieldDescriptor field, java.lang.Object value)
private void	printSingleFieldValue(Descriptors.FieldDescriptor field, java.lang.Object value)
private void	printSingleFieldValue(Descriptors.FieldDescriptor field, java.lang.Object value, boolean alwaysWithQuotes) Prints a field's value in JSON format.
private void	printStruct(MessageOrBuilder message) Prints google.protobuf.Struct
private void	printTimestamp(MessageOrBuilder message) Prints google.protobuf.Timestamp
private void	printValue(MessageOrBuilder message) Prints google.protobuf.Value
private void	printWrapper(MessageOrBuilder message) Prints wrapper types (e.g., google.protobuf.Int32Value)
private ByteString	toByteString(MessageOrBuilder message)

Methods inherited from class java.lang.Object

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

Field Detail

registry

private final JsonFormat.TypeRegistry registry

alwaysOutputDefaultValueFields

private final boolean alwaysOutputDefaultValueFields

includingDefaultValueFields

private final java.util.Set<Descriptors.FieldDescriptor> includingDefaultValueFields

preservingProtoFieldNames

private final boolean preservingProtoFieldNames

printingEnumsAsInts

private final boolean printingEnumsAsInts

generator

private final JsonFormat.TextGenerator generator

gson

private final com.google.gson.Gson gson

blankOrSpace

private final java.lang.CharSequence blankOrSpace

blankOrNewLine

private final java.lang.CharSequence blankOrNewLine

wellKnownTypePrinters

private static final java.util.Map<java.lang.String,JsonFormat.PrinterImpl.WellKnownTypePrinter> wellKnownTypePrinters

Constructor Detail

PrinterImpl

PrinterImpl(JsonFormat.TypeRegistry registry,
            boolean alwaysOutputDefaultValueFields,
            java.util.Set<Descriptors.FieldDescriptor> includingDefaultValueFields,
            boolean preservingProtoFieldNames,
            java.lang.Appendable jsonOutput,
            boolean omittingInsignificantWhitespace,
            boolean printingEnumsAsInts)

Method Detail

print

void print(MessageOrBuilder message)
    throws java.io.IOException

Throws:

java.io.IOException

buildWellKnownTypePrinters

private static java.util.Map<java.lang.String,JsonFormat.PrinterImpl.WellKnownTypePrinter> buildWellKnownTypePrinters()

printAny

private void printAny(MessageOrBuilder message)
               throws java.io.IOException

Prints google.protobuf.Any

Throws:

java.io.IOException

printWrapper

private void printWrapper(MessageOrBuilder message)
                   throws java.io.IOException

Prints wrapper types (e.g., google.protobuf.Int32Value)

Throws:

java.io.IOException

toByteString

private ByteString toByteString(MessageOrBuilder message)

printTimestamp

private void printTimestamp(MessageOrBuilder message)
                     throws java.io.IOException

Prints google.protobuf.Timestamp

Throws:

java.io.IOException

printDuration

private void printDuration(MessageOrBuilder message)
                    throws java.io.IOException

Prints google.protobuf.Duration

Throws:

java.io.IOException

printFieldMask

private void printFieldMask(MessageOrBuilder message)
                     throws java.io.IOException

Prints google.protobuf.FieldMask

Throws:

java.io.IOException

printStruct

private void printStruct(MessageOrBuilder message)
                  throws java.io.IOException

Prints google.protobuf.Struct

Throws:

java.io.IOException

printValue

private void printValue(MessageOrBuilder message)
                 throws java.io.IOException

Prints google.protobuf.Value

Throws:

java.io.IOException

printListValue

private void printListValue(MessageOrBuilder message)
                     throws java.io.IOException

Prints google.protobuf.ListValue

Throws:

java.io.IOException

print

private void print(MessageOrBuilder message,
                   java.lang.String typeUrl)
            throws java.io.IOException

Prints a regular message with an optional type URL.

Throws:

java.io.IOException

printField

private void printField(Descriptors.FieldDescriptor field,
                        java.lang.Object value)
                 throws java.io.IOException

Throws:

java.io.IOException

printRepeatedFieldValue

private void printRepeatedFieldValue(Descriptors.FieldDescriptor field,
                                     java.lang.Object value)
                              throws java.io.IOException

Throws:

java.io.IOException

printMapFieldValue

private void printMapFieldValue(Descriptors.FieldDescriptor field,
                                java.lang.Object value)
                         throws java.io.IOException

Throws:

java.io.IOException

printSingleFieldValue

private void printSingleFieldValue(Descriptors.FieldDescriptor field,
                                   java.lang.Object value)
                            throws java.io.IOException

Throws:

java.io.IOException

printSingleFieldValue

private void printSingleFieldValue(Descriptors.FieldDescriptor field,
                                   java.lang.Object value,
                                   boolean alwaysWithQuotes)
                            throws java.io.IOException

Prints a field's value in JSON format.

Parameters:

alwaysWithQuotes - whether to always add double-quotes to primitive types.

Throws:

java.io.IOException