kwin commented on code in PR #257:
URL: 
https://github.com/apache/jackrabbit-filevault/pull/257#discussion_r1032557632


##########
vault-core/src/test/java/org/apache/jackrabbit/vault/packaging/integration/DumpCoverageIT.java:
##########
@@ -28,50 +29,48 @@
 import javax.jcr.RepositoryException;
 
 import org.apache.jackrabbit.commons.JcrUtils;
+import org.apache.jackrabbit.util.Text;
 import org.apache.jackrabbit.vault.fs.api.PathFilterSet;
 import org.apache.jackrabbit.vault.fs.api.ProgressTrackerListener;
 import org.apache.jackrabbit.vault.fs.config.ConfigurationException;
 import org.apache.jackrabbit.vault.fs.config.DefaultWorkspaceFilter;
-import org.apache.jackrabbit.util.Text;
 import org.junit.Before;
 import org.junit.Test;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 
 
 /**
- * {@code ImportTests}...
+ * Tests of coverage dump functionality.
  */
 public class DumpCoverageIT extends IntegrationTestBase {
 
-    /**
-     * default logger
-     */
-    private static final Logger log = 
LoggerFactory.getLogger(DumpCoverageIT.class);
-
     public static final String TEST_ROOT = "/testroot";
 
-    public static final String[] ALL_PAGES = {
-            TEST_ROOT + "/content",
-            TEST_ROOT + "/content/en",
-            TEST_ROOT + "/content/en/foo",
-            TEST_ROOT + "/content/en/bar",
-            TEST_ROOT + "/content/fr",
-            TEST_ROOT + "/content/fr/foo"
-    };
-    public static final String[] LANGUAGE_PAGES = {
-            TEST_ROOT + "/content/en",
-            TEST_ROOT + "/content/en/foo",
-            TEST_ROOT + "/content/en/bar",
-            TEST_ROOT + "/content/fr",
-            TEST_ROOT + "/content/fr/foo"
-    };
-    public static String[] ALL_PATHS;
+    public static final List<String> ENGLISH_PAGES = Arrays
+            .asList(new String[] { TEST_ROOT + "/content/en", TEST_ROOT + 
"/content/en/foo", TEST_ROOT + "/content/en/bar" });

Review Comment:
   ```suggestion
               .asList(TEST_ROOT + "/content/en", TEST_ROOT + 
"/content/en/foo", TEST_ROOT + "/content/en/bar");
   ```



##########
vault-core/src/main/java/org/apache/jackrabbit/vault/fs/api/WorkspaceFilter.java:
##########
@@ -146,8 +146,7 @@ void dumpCoverage(@NotNull Node rootNode, @NotNull 
ProgressTrackerListener liste
             throws RepositoryException;
 
     /**
-     * Dumps the coverage of this filter using the given session. The 
traversal starts
-     * at the common ancestor of all filter sets. If {@code skipJcrContent} is 
{@code true}
+     * Dumps the coverage of this filter using the given session. If {@code 
skipJcrContent} is {@code true}

Review Comment:
   Maybe you can also clarify the parameter `listener`. 
   Instead of "listener to report progress" rather "listener which receives 
coverage information"



##########
vault-core/src/main/java/org/apache/jackrabbit/vault/fs/config/DefaultWorkspaceFilter.java:
##########
@@ -580,27 +581,49 @@ public void dumpCoverage(javax.jcr.Node rootNode, 
ProgressTrackerListener listen
     /**
      * {@inheritDoc}
      */
-    public void dumpCoverage(Session session, ProgressTrackerListener 
listener, boolean skipJcrContent)
-            throws RepositoryException {
+    public void dumpCoverage(Session session, ProgressTrackerListener 
listener, boolean skipJcrContent) throws RepositoryException {
         ProgressTracker tracker = new ProgressTracker(listener);
-        // get common ancestor
-        Tree<PathFilterSet> tree = new Tree<>();
-        for (PathFilterSet set: nodesFilterSets) {
-            tree.put(set.getRoot(), set);
-        }
-        String rootPath = tree.getRootPath();
-        javax.jcr.Node rootNode;
-        if (session.nodeExists(rootPath)) {
-            rootNode = session.getNode(rootPath);
-        } else if (session.nodeExists("/")) {
-            log.warn("Common ancestor {} not found. Using root node", 
rootPath);
-            rootNode = session.getRootNode();
-            rootPath = "/";
-        } else {
-            throw new PathNotFoundException("Common ancestor " + rootPath+ " 
not found.");
-        }
-        log.debug("Starting coverage dump at {} (skipJcrContent={})", 
rootPath, skipJcrContent);
-        dumpCoverage(rootNode, tracker, skipJcrContent);
+
+        List<javax.jcr.Node> nodes = new ArrayList<>();

Review Comment:
   What is this variable being used for?



##########
vault-core/src/main/java/org/apache/jackrabbit/vault/fs/config/DefaultWorkspaceFilter.java:
##########
@@ -580,27 +581,49 @@ public void dumpCoverage(javax.jcr.Node rootNode, 
ProgressTrackerListener listen
     /**
      * {@inheritDoc}
      */
-    public void dumpCoverage(Session session, ProgressTrackerListener 
listener, boolean skipJcrContent)
-            throws RepositoryException {
+    public void dumpCoverage(Session session, ProgressTrackerListener 
listener, boolean skipJcrContent) throws RepositoryException {
         ProgressTracker tracker = new ProgressTracker(listener);
-        // get common ancestor
-        Tree<PathFilterSet> tree = new Tree<>();
-        for (PathFilterSet set: nodesFilterSets) {
-            tree.put(set.getRoot(), set);
-        }
-        String rootPath = tree.getRootPath();
-        javax.jcr.Node rootNode;
-        if (session.nodeExists(rootPath)) {
-            rootNode = session.getNode(rootPath);
-        } else if (session.nodeExists("/")) {
-            log.warn("Common ancestor {} not found. Using root node", 
rootPath);
-            rootNode = session.getRootNode();
-            rootPath = "/";
-        } else {
-            throw new PathNotFoundException("Common ancestor " + rootPath+ " 
not found.");
-        }
-        log.debug("Starting coverage dump at {} (skipJcrContent={})", 
rootPath, skipJcrContent);
-        dumpCoverage(rootNode, tracker, skipJcrContent);
+
+        List<javax.jcr.Node> nodes = new ArrayList<>();
+        for (String path : getNodesToDump()) {
+            if (session.nodeExists(path)) {
+                nodes.add(session.getNode(path));
+                dumpCoverage(session.getNode(path), tracker, skipJcrContent);
+            } else {
+                log.warn("Node {} not found (and thus will not be dumped)", 
path);
+            }
+        }
+    }
+
+    /**
+     * @return list of nodes to descend from for dumping
+     */
+    private List<String> getNodesToDump() {

Review Comment:
   maybe rather `getEntryNodesRelevantForCoverage()`



##########
vault-core/src/test/java/org/apache/jackrabbit/vault/packaging/integration/DumpCoverageIT.java:
##########
@@ -28,50 +29,48 @@
 import javax.jcr.RepositoryException;
 
 import org.apache.jackrabbit.commons.JcrUtils;
+import org.apache.jackrabbit.util.Text;
 import org.apache.jackrabbit.vault.fs.api.PathFilterSet;
 import org.apache.jackrabbit.vault.fs.api.ProgressTrackerListener;
 import org.apache.jackrabbit.vault.fs.config.ConfigurationException;
 import org.apache.jackrabbit.vault.fs.config.DefaultWorkspaceFilter;
-import org.apache.jackrabbit.util.Text;
 import org.junit.Before;
 import org.junit.Test;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 
 
 /**
- * {@code ImportTests}...
+ * Tests of coverage dump functionality.
  */
 public class DumpCoverageIT extends IntegrationTestBase {
 
-    /**
-     * default logger
-     */
-    private static final Logger log = 
LoggerFactory.getLogger(DumpCoverageIT.class);
-
     public static final String TEST_ROOT = "/testroot";
 
-    public static final String[] ALL_PAGES = {
-            TEST_ROOT + "/content",
-            TEST_ROOT + "/content/en",
-            TEST_ROOT + "/content/en/foo",
-            TEST_ROOT + "/content/en/bar",
-            TEST_ROOT + "/content/fr",
-            TEST_ROOT + "/content/fr/foo"
-    };
-    public static final String[] LANGUAGE_PAGES = {
-            TEST_ROOT + "/content/en",
-            TEST_ROOT + "/content/en/foo",
-            TEST_ROOT + "/content/en/bar",
-            TEST_ROOT + "/content/fr",
-            TEST_ROOT + "/content/fr/foo"
-    };
-    public static String[] ALL_PATHS;
+    public static final List<String> ENGLISH_PAGES = Arrays
+            .asList(new String[] { TEST_ROOT + "/content/en", TEST_ROOT + 
"/content/en/foo", TEST_ROOT + "/content/en/bar" });
+
+    public static final List<String> FRENCH_PAGES = Arrays
+            .asList(new String[] { TEST_ROOT + "/content/fr", TEST_ROOT + 
"/content/fr/foo" });

Review Comment:
   ```suggestion
               .asList(TEST_ROOT + "/content/fr", TEST_ROOT + 
"/content/fr/foo");
   ```



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