Pankraz76 commented on code in PR #2347:
URL: https://github.com/apache/maven/pull/2347#discussion_r2094587418
##########
impl/maven-impl/src/main/java/org/apache/maven/impl/DefaultDependencyResolver.java:
##########
@@ -67,6 +67,21 @@
@Named
@Singleton
public class DefaultDependencyResolver implements DependencyResolver {
+ /**
+ * Cache of information about the modules contained in a path element.
+ * This cache is created when first needed. It may be never created.
+ *
+ * <p><b>TODO:</b> This field should not be in this class, because the
cache should be global to the session.
+ * This field exists here only temporarily, until we clarified where to
store session-wide caches.</p>
+ *
+ * @see moduleCache()
+ */
+ private PathModularizationCache moduleCache;
+
+ /**
+ * Creates an initially empty resolver.
+ */
+ public DefaultDependencyResolver() {}
Review Comment:
who need this? will create very fragile object.
##########
impl/maven-impl/src/main/java/org/apache/maven/impl/DefaultDependencyResolverResult.java:
##########
@@ -97,6 +99,24 @@ public class DefaultDependencyResolverResult implements
DependencyResolverResult
*/
private final PathModularizationCache cache;
+ /**
+ * Creates an initially empty result with a temporary cache.
+ * Callers should add path elements by calls to {@link
#addDependency(Node, Dependency, Predicate, Path)}.
+ *
+ * <p><b>WARNING: this constructor may be removed in a future Maven
release.</b>
+ * The reason is because {@code DefaultDependencyResolverResult} needs a
cache, which should
+ * preferably by session-wide. But we have not yet clarified how such
caches should be managed.</p>
+ *
+ * @param request the corresponding request
+ * @param exceptions the exceptions that occurred while building the
dependency graph
+ * @param root the root node of the dependency graph
+ * @param count estimated number of dependencies
+ */
+ public DefaultDependencyResolverResult(
+ DependencyResolverRequest request, List<Exception> exceptions,
Node root, int count) {
+ this(request, new PathModularizationCache(), exceptions, root, count);
Review Comment:
yes this gives dedication and option.
##########
impl/maven-impl/src/main/java/org/apache/maven/impl/DefaultDependencyResolver.java:
##########
@@ -67,6 +67,21 @@
@Named
@Singleton
public class DefaultDependencyResolver implements DependencyResolver {
+ /**
+ * Cache of information about the modules contained in a path element.
+ * This cache is created when first needed. It may be never created.
+ *
+ * <p><b>TODO:</b> This field should not be in this class, because the
cache should be global to the session.
+ * This field exists here only temporarily, until we clarified where to
store session-wide caches.</p>
Review Comment:
```suggestion
* This field exists here only temporarily, until clarified where to
store session-wide caches.</p>
```
##########
impl/maven-impl/src/main/java/org/apache/maven/impl/DefaultDependencyResolverResult.java:
##########
@@ -97,6 +99,24 @@ public class DefaultDependencyResolverResult implements
DependencyResolverResult
*/
private final PathModularizationCache cache;
+ /**
+ * Creates an initially empty result with a temporary cache.
+ * Callers should add path elements by calls to {@link
#addDependency(Node, Dependency, Predicate, Path)}.
+ *
+ * <p><b>WARNING: this constructor may be removed in a future Maven
release.</b>
+ * The reason is because {@code DefaultDependencyResolverResult} needs a
cache, which should
+ * preferably by session-wide. But we have not yet clarified how such
caches should be managed.</p>
+ *
+ * @param request the corresponding request
+ * @param exceptions the exceptions that occurred while building the
dependency graph
+ * @param root the root node of the dependency graph
+ * @param count estimated number of dependencies
+ */
+ public DefaultDependencyResolverResult(
+ DependencyResolverRequest request, List<Exception> exceptions,
Node root, int count) {
+ this(request, new PathModularizationCache(), exceptions, root, count);
Review Comment:
```suggestion
this(request, moduleCache(), exceptions, root, count);
```
##########
impl/maven-impl/src/main/java/org/apache/maven/impl/DefaultDependencyResolverResult.java:
##########
@@ -107,14 +127,14 @@ public class DefaultDependencyResolverResult implements
DependencyResolverResult
* @param root the root node of the dependency graph
* @param count estimated number of dependencies
*/
- public DefaultDependencyResolverResult(
+ DefaultDependencyResolverResult(
DependencyResolverRequest request,
PathModularizationCache cache,
List<Exception> exceptions,
Node root,
int count) {
this.request = request;
- this.cache = cache;
+ this.cache = Objects.requireNonNull(cache);
Review Comment:
or here
```suggestion
this.cache = Objects.requireNonNull(moduleCache());
```
one of the suggestions is right. as `moduleCache()` is SSOT.
##########
impl/maven-impl/src/main/java/org/apache/maven/impl/DefaultDependencyResolverResult.java:
##########
@@ -97,6 +99,24 @@ public class DefaultDependencyResolverResult implements
DependencyResolverResult
*/
private final PathModularizationCache cache;
+ /**
+ * Creates an initially empty result with a temporary cache.
+ * Callers should add path elements by calls to {@link
#addDependency(Node, Dependency, Predicate, Path)}.
+ *
+ * <p><b>WARNING: this constructor may be removed in a future Maven
release.</b>
+ * The reason is because {@code DefaultDependencyResolverResult} needs a
cache, which should
+ * preferably by session-wide. But we have not yet clarified how such
caches should be managed.</p>
Review Comment:
```suggestion
* preferably by session-wide. How to manage such caches, has not yet
been clarified.</p>
```
##########
impl/maven-impl/src/main/java/org/apache/maven/impl/DefaultDependencyResolver.java:
##########
@@ -126,7 +141,11 @@ public DependencyResolverResult collect(@Nonnull
DependencyResolverRequest reque
final CollectResult result =
session.getRepositorySystem().collectDependencies(systemSession,
collectRequest);
return new DefaultDependencyResolverResult(
- null, null, result.getExceptions(),
session.getNode(result.getRoot(), request.getVerbose()), 0);
+ null,
+ moduleCache(),
Review Comment:
as its dry, and static, inline. Ide shoud give warning on method or
constructor that value is always same.
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