Package com.google.appengine.tools

Class JarSplitterMain

java.lang.Object

com.google.appengine.tools.JarSplitterMain

public class JarSplitterMain
extends Object

Simple utility that splits a large jar file into one or more jar files that are each less than the file size specified with --max_file_size. This class strips out jar index files. It does not, however, ensure that resource or META-INF files are directed to the appropriate jar file. It's unclear whether this will cause problems or not. UPDATE to the lack of clarity: It is now clear that this will cause problems. Some frameworks (datanucleus in particular) make assumptions about the colocation of well-known files and the manifest in the same jar. Splitting the jar violates these assumptions. Usage:

   JarSplitter --input_jar=MyProject_deploy.jar \
               --output_directory=./lib \
               --max_file_size=10000000 \
               --replicate_manifests=false \
               --exclude_suffixes=.so,.dll

Field Summary

Fields

Modifier and Type	Field	Description
static final com.google.common.flags.Flag<Set<String>>	EXCLUDE_SUFFIXES
static final com.google.common.flags.Flag<String>	INPUT_JAR
static final com.google.common.flags.Flag<Integer>	MAX_FILE_SIZE
static final com.google.common.flags.Flag<Integer>	OUTPUT_DIGITS
static final com.google.common.flags.Flag<String>	OUTPUT_DIRECTORY
static final com.google.common.flags.Flag<Boolean>	REPLICATE_MANIFESTS

Constructor Summary

Constructors

Constructor	Description
JarSplitterMain()

Method Summary

Modifier and Type	Method	Description
static void	main(String[] args)

Methods inherited from class java.lang.Object

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

Field Details

MAX_FILE_SIZE

public static final com.google.common.flags.Flag<Integer> MAX_FILE_SIZE

INPUT_JAR

public static final com.google.common.flags.Flag<String> INPUT_JAR

OUTPUT_DIRECTORY

public static final com.google.common.flags.Flag<String> OUTPUT_DIRECTORY

OUTPUT_DIGITS

public static final com.google.common.flags.Flag<Integer> OUTPUT_DIGITS

REPLICATE_MANIFESTS

public static final com.google.common.flags.Flag<Boolean> REPLICATE_MANIFESTS

EXCLUDE_SUFFIXES

public static final com.google.common.flags.Flag<Set<String>> EXCLUDE_SUFFIXES

Constructor Details

JarSplitterMain

public JarSplitterMain()

Method Details

main

public static void main(String[] args)
                 throws IOException

Throws:

IOException