Top Description Fields Constructors Methods
com.google.protobuf.nano

public final Class MessageNanoPrinter

extends Object
Class Inheritance
Imports
java.lang.reflect.Array, .Field, .InvocationTargetException, .Method, .Modifier, java.util.Map
Static helper methods for printing nano protos.
Author
[email protected] Andrew Flynn

Field Summary

Modifier and TypeField and Description
private static final String
INDENT

private static final int
MAX_STRING_LEN

Constructor Summary

AccessConstructor and Description
private
MessageNanoPrinter()

Method Summary

Modifier and TypeMethod and Description
private static void
appendQuotedBytes(byte[] bytes, StringBuffer builder)

Appends a quoted byte array to the provided StringBuffer.

private static String
deCamelCaseify(String identifier)

Converts an identifier of the format "FieldName" into "field_name".

private static String
escapeString(String str)

Escape everything except for low ASCII code points.

private static String
sanitizeString(String str)

Shortens and escapes the given string.

Inherited from java.lang.Object:
cloneequalsfinalizegetClasshashCodenotifynotifyAlltoStringwaitwaitwait

Field Detail

INDENTback to summary
private static final String INDENT
MAX_STRING_LENback to summary
private static final int MAX_STRING_LEN

Constructor Detail

MessageNanoPrinterback to summary
private MessageNanoPrinter()

Method Detail

appendQuotedBytesback to summary
private static void appendQuotedBytes(byte[] bytes, StringBuffer builder)

Appends a quoted byte array to the provided StringBuffer.

deCamelCaseifyback to summary
private static String deCamelCaseify(String identifier)

Converts an identifier of the format "FieldName" into "field_name".

escapeStringback to summary
private static String escapeString(String str)

Escape everything except for low ASCII code points.

printback to summary
public static <T extends MessageNano> String print(T message)

Returns an text representation of a MessageNano suitable for debugging. The returned string is mostly compatible with Protocol Buffer's TextFormat (as provided by non-nano protocol buffers) -- groups (which are deprecated) are output with an underscore name (e.g. foo_bar instead of FooBar) and will thus not parse.

Employs Java reflection on the given object and recursively prints primitive fields, groups, and messages.

printback to summary
private static void print(String identifier, Object object, StringBuffer indentBuf, StringBuffer buf) throws IllegalAccessException, InvocationTargetException

Function that will print the given message/field into the StringBuffer. Meant to be called recursively.

Parameters
identifier:String

the identifier to use, or null if this is the root message to print.

object:Object

the value to print. May in fact be a primitive value or byte array and not a message.

indentBuf:StringBuffer

the indentation each line should begin with.

buf:StringBuffer

the output buffer.

sanitizeStringback to summary
private static String sanitizeString(String str)

Shortens and escapes the given string.