public void read(DataEntry dataEntry) throws IOException {
try {
// Get the input stream.
InputStream inputStream = dataEntry.getInputStream();
// Wrap it into a data input stream.
DataInputStream dataInputStream = new DataInputStream(inputStream);
// Create a Clazz representation.
Clazz clazz;
if (isLibrary) {
clazz = new LibraryClass();
clazz.accept(
new LibraryClassReader(
dataInputStream, skipNonPublicLibraryClasses, skipNonPublicLibraryClassMembers));
} else {
clazz = new ProgramClass();
clazz.accept(new ProgramClassReader(dataInputStream));
}
// Apply the visitor, if we have a real class.
String className = clazz.getName();
if (className != null) {
if (!dataEntry
.getName()
.replace(File.pathSeparatorChar, ClassConstants.PACKAGE_SEPARATOR)
.equals(className + ClassConstants.CLASS_FILE_EXTENSION)
&& warningPrinter != null) {
warningPrinter.print(
className,
"Warning: class ["
+ dataEntry.getName()
+ "] unexpectedly contains class ["
+ ClassUtil.externalClassName(className)
+ "]");
}
clazz.accept(classVisitor);
}
dataEntry.closeInputStream();
} catch (Exception ex) {
throw (IOException)
new IOException(
"Can't process class [" + dataEntry.getName() + "] (" + ex.getMessage() + ")")
.initCause(ex);
}
}
/**
* Marks the hierarchy of implementing or overriding methods corresponding to the given method, if
* any.
*/
protected void markMethodHierarchy(Clazz clazz, Method method) {
int accessFlags = method.getAccessFlags();
if ((accessFlags & (ClassConstants.ACC_PRIVATE | ClassConstants.ACC_STATIC)) == 0
&& !ClassUtil.isInitializer(method.getName(clazz))) {
// We can skip private and static methods in the hierarchy, and
// also abstract methods, unless they might widen a current
// non-public access.
int requiredUnsetAccessFlags =
ClassConstants.ACC_PRIVATE
| ClassConstants.ACC_STATIC
| ((accessFlags & ClassConstants.ACC_PUBLIC) == 0 ? 0 : ClassConstants.ACC_ABSTRACT);
clazz.accept(
new ConcreteClassDownTraveler(
new ClassHierarchyTraveler(
true,
true,
false,
true,
new NamedMethodVisitor(
method.getName(clazz),
method.getDescriptor(clazz),
new MemberAccessFilter(0, requiredUnsetAccessFlags, this)))));
}
}
public void visitLibraryClass(LibraryClass libraryClass) {
if (shouldBeMarkedAsUsed(libraryClass)) {
markAsUsed(libraryClass);
// We're not going to analyze all library code. We're assuming that
// if this class is being used, all of its methods will be used as
// well. We'll mark them as such (here and in all subclasses).
// Mark the superclass.
Clazz superClass = libraryClass.superClass;
if (superClass != null) {
superClass.accept(this);
}
// Mark the interfaces.
Clazz[] interfaceClasses = libraryClass.interfaceClasses;
if (interfaceClasses != null) {
for (int index = 0; index < interfaceClasses.length; index++) {
if (interfaceClasses[index] != null) {
interfaceClasses[index].accept(this);
}
}
}
// Mark all methods.
libraryClass.methodsAccept(this);
}
}
/**
* Marks the hierarchy of implementing or overriding methods corresponding to the given method, if
* any.
*/
protected void markMethodHierarchy(Clazz clazz, Method method) {
int accessFlags = method.getAccessFlags();
if ((accessFlags & (ClassConstants.ACC_PRIVATE | ClassConstants.ACC_STATIC)) == 0
&& !ClassUtil.isInitializer(method.getName(clazz))) {
// We can skip private and static methods in the hierarchy, and
// also abstract methods, unless they might widen a current
// non-public access.
int requiredUnsetAccessFlags =
ClassConstants.ACC_PRIVATE
| ClassConstants.ACC_STATIC
| ((accessFlags & ClassConstants.ACC_PUBLIC) == 0 ? 0 : ClassConstants.ACC_ABSTRACT);
// Mark default implementations in interfaces down the hierarchy.
// TODO: This may be premature if there aren't any concrete implementing classes.
clazz.accept(
new ClassAccessFilter(
ClassConstants.ACC_ABSTRACT,
0,
new ClassHierarchyTraveler(
false,
false,
false,
true,
new ProgramClassFilter(
new ClassAccessFilter(
ClassConstants.ACC_ABSTRACT,
0,
new NamedMethodVisitor(
method.getName(clazz),
method.getDescriptor(clazz),
new MemberAccessFilter(
0, requiredUnsetAccessFlags, defaultMethodUsageMarker)))))));
// Mark other implementations.
clazz.accept(
new ConcreteClassDownTraveler(
new ClassHierarchyTraveler(
true,
true,
false,
true,
new NamedMethodVisitor(
method.getName(clazz),
method.getDescriptor(clazz),
new MemberAccessFilter(0, requiredUnsetAccessFlags, this)))));
}
}
/**
* Lets the given class visitor visit all known direct interfaces.
*
* @param classVisitor the <code>ClassVisitor</code> that will visit the interfaces.
*/
public void interfacesAccept(ClassVisitor classVisitor) {
if (interfaceClasses != null) {
for (int index = 0; index < interfaceClasses.length; index++) {
Clazz interfaceClass = interfaceClasses[index];
if (interfaceClass != null) {
interfaceClass.accept(classVisitor);
}
}
}
}
/**
* Lets the given class visitor visit the superclass, if it is known.
*
* @param classVisitor the <code>ClassVisitor</code> that will visit the superclass.
*/
public void superClassAccept(ClassVisitor classVisitor) {
if (superClass != null) {
superClass.accept(classVisitor);
}
}
