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hibernate-orm
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HHH-13277 Add a couple of comments

This commit is contained in:
Guillaume Smet 2019-02-22 13:07:22 +01:00
parent 38a0cd2690
commit 89f523c87f
1 changed files with 9 additions and 1 deletions
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10
hibernate-core/src/main/java/org/hibernate/bytecode/internal/bytebuddy/HibernateMethodLookupDispatcher.java
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@ -17,6 +17,13 @@ import java.util.stream.Stream;
import org.hibernate.HibernateException; import org.hibernate.HibernateException;
/**
* This dispatcher analyzes the stack frames to detect if a particular call should be authorized.
* <p>
* Authorized classes are registered when creating the ByteBuddy proxies.
* <p>
* It should only be used when the Security Manager is enabled.
*/
public class HibernateMethodLookupDispatcher { public class HibernateMethodLookupDispatcher {
/** /**
@ -93,6 +100,7 @@ public class HibernateMethodLookupDispatcher {
public PrivilegedAction<Class<?>[]> run() { public PrivilegedAction<Class<?>[]> run() {
Class<?> stackWalkerClass = null; Class<?> stackWalkerClass = null;
try { try {
// JDK 9 introduced the StackWalker
stackWalkerClass = Class.forName( "java.lang.StackWalker" ); stackWalkerClass = Class.forName( "java.lang.StackWalker" );
} }
catch (ClassNotFoundException e) { catch (ClassNotFoundException e) {
@ -192,9 +200,9 @@ public class HibernateMethodLookupDispatcher {
} }
} }
@SuppressWarnings({ "unchecked", "rawtypes" })
private final Function<Stream, Object> stackFrameExtractFunction = new Function<Stream, Object>() { private final Function<Stream, Object> stackFrameExtractFunction = new Function<Stream, Object>() {
@Override @Override
@SuppressWarnings({ "unchecked", "rawtypes" })
public Object apply(Stream stream) { public Object apply(Stream stream) {
return stream.map( stackFrameGetDeclaringClassFunction ) return stream.map( stackFrameGetDeclaringClassFunction )
.limit( MAX_STACK_FRAMES ) .limit( MAX_STACK_FRAMES )