com.google.protobuf
Class TextFormat

java.lang.Object
  com.google.protobuf.TextFormat

public final class TextFormat
extends java.lang.Object

Provide text parsing and formatting support for proto2 instances. The implementation largely follows google/protobuf/text_format.cc.

Author:

[email protected] Wenbo Zhu, [email protected] Kenton Varda

Nested Class Summary

static class

TextFormat.ParseException Thrown when parsing an invalid text format message.

Method Summary

static void	merge(java.lang.CharSequence input, ExtensionRegistry extensionRegistry, Message.Builder builder) Parse a text-format message from input and merge the contents into builder.
static void	merge(java.lang.CharSequence input, Message.Builder builder) Parse a text-format message from input and merge the contents into builder.
static void	merge(java.lang.Readable input, ExtensionRegistry extensionRegistry, Message.Builder builder) Parse a text-format message from input and merge the contents into builder.
static void	merge(java.lang.Readable input, Message.Builder builder) Parse a text-format message from input and merge the contents into builder.
static void	print(Message message, java.lang.Appendable output) Outputs a textual representation of the Protocol Message supplied into the parameter output.
static void	print(UnknownFieldSet fields, java.lang.Appendable output) Outputs a textual representation of fields to output.
static void	printField(Descriptors.FieldDescriptor field, java.lang.Object value, java.lang.Appendable output)
static java.lang.String	printFieldToString(Descriptors.FieldDescriptor field, java.lang.Object value)
static void	printFieldValue(Descriptors.FieldDescriptor field, java.lang.Object value, java.lang.Appendable output) Outputs a textual representation of the value of given field value.
static java.lang.String	printToString(Message message) Like print(), but writes directly to a String and returns it.
static java.lang.String	printToString(UnknownFieldSet fields) Like print(), but writes directly to a String and returns it.
static void	printUnknownFieldValue(int tag, java.lang.Object value, java.lang.Appendable output) Outputs a textual representation of the value of an unknown field.
static java.lang.String	shortDebugString(Message message) Generates a human readable form of this message, useful for debugging and other purposes, with no newline characters.
static java.lang.String	shortDebugString(UnknownFieldSet fields) Generates a human readable form of the unknown fields, useful for debugging and other purposes, with no newline characters.

Methods inherited from class java.lang.Object

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

Method Detail

print

public static void print(Message message,
                         java.lang.Appendable output)
                  throws java.io.IOException

Outputs a textual representation of the Protocol Message supplied into the parameter output. (This representation is the new version of the classic "ProtocolPrinter" output from the original Protocol Buffer system)

Throws:

java.io.IOException

print

public static void print(UnknownFieldSet fields,
                         java.lang.Appendable output)
                  throws java.io.IOException

Outputs a textual representation of fields to output.

Throws:

java.io.IOException

shortDebugString

public static java.lang.String shortDebugString(Message message)

Generates a human readable form of this message, useful for debugging and other purposes, with no newline characters.

shortDebugString

public static java.lang.String shortDebugString(UnknownFieldSet fields)

Generates a human readable form of the unknown fields, useful for debugging and other purposes, with no newline characters.

printToString

public static java.lang.String printToString(Message message)

Like print(), but writes directly to a String and returns it.

printToString

public static java.lang.String printToString(UnknownFieldSet fields)

Like print(), but writes directly to a String and returns it.

printField

public static void printField(Descriptors.FieldDescriptor field,
                              java.lang.Object value,
                              java.lang.Appendable output)
                       throws java.io.IOException

Throws:

java.io.IOException

printFieldToString

public static java.lang.String printFieldToString(Descriptors.FieldDescriptor field,
                                                  java.lang.Object value)

printFieldValue

public static void printFieldValue(Descriptors.FieldDescriptor field,
                                   java.lang.Object value,
                                   java.lang.Appendable output)
                            throws java.io.IOException

Outputs a textual representation of the value of given field value.

Parameters:

field - the descriptor of the field

value - the value of the field

output - the output to which to append the formatted value

Throws:

java.lang.ClassCastException - if the value is not appropriate for the given field descriptor

java.io.IOException - if there is an exception writing to the output

printUnknownFieldValue

public static void printUnknownFieldValue(int tag,
                                          java.lang.Object value,
                                          java.lang.Appendable output)
                                   throws java.io.IOException

Outputs a textual representation of the value of an unknown field.

Parameters:

tag - the field's tag number

value - the value of the field

output - the output to which to append the formatted value

Throws:

java.lang.ClassCastException - if the value is not appropriate for the given field descriptor

java.io.IOException - if there is an exception writing to the output

merge

public static void merge(java.lang.Readable input,
                         Message.Builder builder)
                  throws java.io.IOException

Parse a text-format message from input and merge the contents into builder.

Throws:

java.io.IOException

merge

public static void merge(java.lang.CharSequence input,
                         Message.Builder builder)
                  throws TextFormat.ParseException

Parse a text-format message from input and merge the contents into builder.

Throws:

TextFormat.ParseException

merge

public static void merge(java.lang.Readable input,
                         ExtensionRegistry extensionRegistry,
                         Message.Builder builder)
                  throws java.io.IOException

Parse a text-format message from input and merge the contents into builder. Extensions will be recognized if they are registered in extensionRegistry.

Throws:

java.io.IOException

merge

public static void merge(java.lang.CharSequence input,
                         ExtensionRegistry extensionRegistry,
                         Message.Builder builder)
                  throws TextFormat.ParseException

Parse a text-format message from input and merge the contents into builder. Extensions will be recognized if they are registered in extensionRegistry.

Throws:

TextFormat.ParseException