Package org.objectweb.asm.tools
Class Retrofitter
- java.lang.Object
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- org.objectweb.asm.tools.Retrofitter
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public class Retrofitter extends java.lang.Object
A tool to transform classes in order to make them compatible with Java 1.5, and to check that they use only the JDK 1.5 API and JDK 1.5 class file features. The original classes can either be transformed "in place", or be copied first to destination directory and transformed here (leaving the original classes unchanged).
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Nested Class Summary
Nested Classes Modifier and Type Class Description (package private) class
Retrofitter.ClassRetrofitter
A ClassVisitor that retrofits classes to 1.5 version.(package private) class
Retrofitter.ClassVerifier
A ClassVisitor checking that a class uses only JDK 1.5 class file features and the JDK 1.5 API.
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Field Summary
Fields Modifier and Type Field Description private java.util.HashSet<java.lang.String>
exports
The internal names of the packages exported by the retrofitted classes.private java.util.HashSet<java.lang.String>
imports
The internal names of the packages imported by the retrofitted classes.private static java.lang.String
JAVA_BASE_MODULE
The name of the java.base module.private java.util.HashSet<java.lang.String>
jdkApi
The fields and methods of the JDK 1.5 API.private java.util.HashMap<java.lang.String,java.lang.String>
jdkHierarchy
The class hierarchy of the JDK 1.5 API.private static java.lang.String
MODULE_INFO
The name of the module-info file.
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Constructor Summary
Constructors Constructor Description Retrofitter()
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description private void
generateModuleInfoClass(java.io.File dstDir, java.lang.String version)
private java.util.List<java.io.File>
getAllClasses(java.io.File file, java.util.List<java.io.File> allClasses)
private static boolean
isAsmModule(java.lang.String packageName)
static void
main(java.lang.String[] args)
Transforms the class files in the given directory, in place, in order to make them compatible with the JDK 1.5.private void
readJdkApi()
void
retrofit(java.io.File classesDir, java.lang.String version)
Transforms the class files in the given directory, in place, in order to make them compatible with the JDK 1.5.void
verify(java.io.File classesDir, java.lang.String expectedVersion, java.util.List<java.lang.String> expectedExports, java.util.List<java.lang.String> expectedRequires)
Verify that the class files in the given directory only use JDK 1.5 APIs, and that a module-info class is present with the expected content.private void
verifyModuleInfoClass(java.io.File dstDir, java.lang.String expectedVersion, java.util.Set<java.lang.String> expectedExports, java.util.Set<java.lang.String> expectedRequires)
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Field Detail
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MODULE_INFO
private static final java.lang.String MODULE_INFO
The name of the module-info file.- See Also:
- Constant Field Values
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JAVA_BASE_MODULE
private static final java.lang.String JAVA_BASE_MODULE
The name of the java.base module.- See Also:
- Constant Field Values
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jdkApi
private final java.util.HashSet<java.lang.String> jdkApi
The fields and methods of the JDK 1.5 API. Each string has the form "<owner><name><descriptor>".
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jdkHierarchy
private final java.util.HashMap<java.lang.String,java.lang.String> jdkHierarchy
The class hierarchy of the JDK 1.5 API. Maps each class name to the name of its super class.
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exports
private final java.util.HashSet<java.lang.String> exports
The internal names of the packages exported by the retrofitted classes.
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imports
private final java.util.HashSet<java.lang.String> imports
The internal names of the packages imported by the retrofitted classes.
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Method Detail
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main
public static void main(java.lang.String[] args) throws java.io.IOException
Transforms the class files in the given directory, in place, in order to make them compatible with the JDK 1.5. Also generates a module-info class in this directory, with the given module version.- Parameters:
args
- a directory containing compiled classes and the ASM release version.- Throws:
java.io.IOException
- if a file can't be read or written.
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retrofit
public void retrofit(java.io.File classesDir, java.lang.String version) throws java.io.IOException
Transforms the class files in the given directory, in place, in order to make them compatible with the JDK 1.5. Also generates a module-info class in this directory, with the given module version.- Parameters:
classesDir
- a directory containing compiled classes.version
- the module-info version.- Throws:
java.io.IOException
- if a file can't be read or written.
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verify
public void verify(java.io.File classesDir, java.lang.String expectedVersion, java.util.List<java.lang.String> expectedExports, java.util.List<java.lang.String> expectedRequires) throws java.io.IOException
Verify that the class files in the given directory only use JDK 1.5 APIs, and that a module-info class is present with the expected content.- Parameters:
classesDir
- a directory containing compiled classes.expectedVersion
- the expected module-info version.expectedExports
- the expected module-info exported packages.expectedRequires
- the expected module-info required modules.- Throws:
java.io.IOException
- if a file can't be read.java.lang.IllegalArgumentException
- if the module-info class does not have the expected content.
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getAllClasses
private java.util.List<java.io.File> getAllClasses(java.io.File file, java.util.List<java.io.File> allClasses) throws java.io.IOException
- Throws:
java.io.IOException
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generateModuleInfoClass
private void generateModuleInfoClass(java.io.File dstDir, java.lang.String version) throws java.io.IOException
- Throws:
java.io.IOException
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verifyModuleInfoClass
private void verifyModuleInfoClass(java.io.File dstDir, java.lang.String expectedVersion, java.util.Set<java.lang.String> expectedExports, java.util.Set<java.lang.String> expectedRequires) throws java.io.IOException
- Throws:
java.io.IOException
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isAsmModule
private static boolean isAsmModule(java.lang.String packageName)
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readJdkApi
private void readJdkApi() throws java.io.IOException
- Throws:
java.io.IOException
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