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Posted to commits@sling.apache.org by jo...@apache.org on 2022/02/11 14:06:54 UTC

[sling-org-apache-sling-jcr-repoinit] 01/01: SLING-10625 convert RuntimeExceptions into RepositoryExceptions

This is an automated email from the ASF dual-hosted git repository.

joerghoh pushed a commit to branch improvement/10625-avoid-RTE
in repository https://gitbox.apache.org/repos/asf/sling-org-apache-sling-jcr-repoinit.git

commit ab1da044580f860a446bd7c25dcc41941f7ea36c
Author: Jörg Hoh <jo...@joerghoh.de>
AuthorDate: Fri Feb 11 15:06:37 2022 +0100

    SLING-10625 convert RuntimeExceptions into RepositoryExceptions
---
 pom.xml                                            |  6 +++
 .../apache/sling/jcr/repoinit/impl/AclVisitor.java | 20 ++++----
 .../sling/jcr/repoinit/impl/DoNothingVisitor.java  |  6 ++-
 .../jcr/repoinit/impl/GroupMembershipVisitor.java  |  4 +-
 .../jcr/repoinit/impl/NodePropertiesVisitor.java   |  2 +-
 .../sling/jcr/repoinit/impl/RepoInitException.java | 34 +++++++++++++
 .../impl/RepositoryInitializerFactory.java         | 10 +++-
 .../sling/jcr/repoinit/impl/UserVisitor.java       |  4 +-
 .../impl/RepositoryInitializerFactoryTest.java     | 59 ++++++++++++++++++++++
 9 files changed, 128 insertions(+), 17 deletions(-)

diff --git a/pom.xml b/pom.xml
index f909c5f..1b7ea45 100644
--- a/pom.xml
+++ b/pom.xml
@@ -169,6 +169,12 @@
             <scope>test</scope>
         </dependency>
         <dependency>
+            <groupId>org.mockito</groupId>
+            <artifactId>mockito-core</artifactId>
+            <version>4.3.1</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
             <groupId>org.osgi</groupId>
             <artifactId>osgi.core</artifactId>
             <scope>provided</scope>
diff --git a/src/main/java/org/apache/sling/jcr/repoinit/impl/AclVisitor.java b/src/main/java/org/apache/sling/jcr/repoinit/impl/AclVisitor.java
index 9e363ef..25e24b4 100644
--- a/src/main/java/org/apache/sling/jcr/repoinit/impl/AclVisitor.java
+++ b/src/main/java/org/apache/sling/jcr/repoinit/impl/AclVisitor.java
@@ -72,7 +72,7 @@ class AclVisitor extends DoNothingVisitor {
     private void setAcl(AclLine line, Session s, List<String> principals, List<String> paths, List<String> privileges, AclLine.Action action) {
         try {
             if (action == AclLine.Action.REMOVE) {
-                throw new RuntimeException("remove not supported");
+                report("remove not supported");
             } else if (action == AclLine.Action.REMOVE_ALL) {
                 AclUtil.removeEntries(s, principals, paths);
             } else {
@@ -82,14 +82,14 @@ class AclVisitor extends DoNothingVisitor {
                 AclUtil.setAcl(s, principals, paths, privileges, isAllow, restrictions);
             }
         } catch (Exception e) {
-            throw new RuntimeException("Failed to set ACL (" + e.toString() + ") " + line, e);
+            report(e,"Failed to set ACL (" + e.toString() + ") " + line);
         }
     }
 
     private void setRepositoryAcl(AclLine line, Session s, List<String> principals, List<String> privileges, AclLine.Action action) {
         try {
             if (action == AclLine.Action.REMOVE) {
-                throw new RuntimeException("remove not supported");
+                report("remove not supported");
             } else if (action == AclLine.Action.REMOVE_ALL) {
                 AclUtil.removeEntries(s, principals, Collections.singletonList(null));
             } else {
@@ -99,7 +99,7 @@ class AclVisitor extends DoNothingVisitor {
                 AclUtil.setRepositoryAcl(s, principals, privileges, isAllow, restrictions);
             }
         } catch (Exception e) {
-            throw new RuntimeException("Failed to set repository level ACL (" + e.toString() + ") " + line, e);
+            report(e, "Failed to set repository level ACL (" + e.toString() + ") " + line);
         }
     }
 
@@ -131,7 +131,7 @@ class AclVisitor extends DoNothingVisitor {
                 log.info("Adding principal-based access control entry for {}", principalName);
                 AclUtil.setPrincipalAcl(session, principalName, s.getLines());
             } catch (Exception e) {
-                throw new RuntimeException("Failed to set principal-based ACL (" + e.getMessage() + ")", e);
+                report(e, "Failed to set principal-based ACL (" + e.getMessage() + ")");
             }
         }
     }
@@ -157,14 +157,14 @@ class AclVisitor extends DoNothingVisitor {
                     }
                 }
             } catch (Exception e) {
-                throw new RuntimeException("CreatePath execution failed at " + psd + ": " + e, e);
+                report(e, "CreatePath execution failed at " + psd + ": " + e);
             }
             parentPath += "/" + psd.getSegment();
         }
         try {
             session.save();
         } catch (Exception e) {
-            throw new RuntimeException("Session.save failed: " + e, e);
+            report(e, "Session.save failed: " + e);
         }
     }
     
@@ -191,7 +191,7 @@ class AclVisitor extends DoNothingVisitor {
                 log.info("Removing access control policy for {}", principalName);
                 AclUtil.removePolicy(session, principalName);
             } catch (RepositoryException e) {
-                throw new RuntimeException("Failed to remove ACL (" + e.getMessage() + ")");
+                report(e, "Failed to remove ACL (" + e.getMessage() + ")");
             }
         }
     }
@@ -201,7 +201,7 @@ class AclVisitor extends DoNothingVisitor {
         try {
             AclUtil.removePolicies(session, s.getPaths());
         } catch (RepositoryException e) {
-            throw new RuntimeException("Failed to remove ACL (" + e.getMessage() + ")");
+            report(e, "Failed to remove ACL (" + e.getMessage() + ")");
         }
     }
 
@@ -212,7 +212,7 @@ class AclVisitor extends DoNothingVisitor {
                 log.info("Removing principal-based access control policy for {}", principalName);
                 AclUtil.removePrincipalPolicy(session, principalName);
             } catch (RepositoryException e) {
-                throw new RuntimeException("Failed to remove principal-based ACL (" + e.getMessage() + ")");
+                report(e, "Failed to remove principal-based ACL (" + e.getMessage() + ")");
             }
         }
     }
diff --git a/src/main/java/org/apache/sling/jcr/repoinit/impl/DoNothingVisitor.java b/src/main/java/org/apache/sling/jcr/repoinit/impl/DoNothingVisitor.java
index edf159f..8e43e20 100644
--- a/src/main/java/org/apache/sling/jcr/repoinit/impl/DoNothingVisitor.java
+++ b/src/main/java/org/apache/sling/jcr/repoinit/impl/DoNothingVisitor.java
@@ -60,7 +60,11 @@ class DoNothingVisitor implements OperationVisitor {
     }
     
     protected void report(Exception e, String message) {
-        throw new RuntimeException(message, e);
+        throw new RepoInitException(message, e);
+    }
+    
+    protected void report(String message) {
+        throw new RepoInitException(message);
     }
     
     protected static String excerpt(String s, int maxLength) {
diff --git a/src/main/java/org/apache/sling/jcr/repoinit/impl/GroupMembershipVisitor.java b/src/main/java/org/apache/sling/jcr/repoinit/impl/GroupMembershipVisitor.java
index 3918a40..9e01dcd 100644
--- a/src/main/java/org/apache/sling/jcr/repoinit/impl/GroupMembershipVisitor.java
+++ b/src/main/java/org/apache/sling/jcr/repoinit/impl/GroupMembershipVisitor.java
@@ -49,7 +49,7 @@ class GroupMembershipVisitor extends DoNothingVisitor {
         try {
             group = UserUtil.getAuthorizable(session, groupname);
             if (group == null || !group.isGroup()) {
-                throw new RuntimeException(groupname + " is not a group");
+                report(groupname + " is not a group");
             }
             ((Group) group).addMembers(members.toArray(new String[0]));
         } catch (RepositoryException e) {
@@ -66,7 +66,7 @@ class GroupMembershipVisitor extends DoNothingVisitor {
         try {
             group = UserUtil.getAuthorizable(session, groupname);
             if (group == null || !group.isGroup()) {
-                throw new RuntimeException(groupname + " is not a group");
+                report(groupname + " is not a group");
             }
             ((Group) group).removeMembers(members.toArray(new String[0]));
         } catch (RepositoryException e) {
diff --git a/src/main/java/org/apache/sling/jcr/repoinit/impl/NodePropertiesVisitor.java b/src/main/java/org/apache/sling/jcr/repoinit/impl/NodePropertiesVisitor.java
index 3483d69..465685b 100644
--- a/src/main/java/org/apache/sling/jcr/repoinit/impl/NodePropertiesVisitor.java
+++ b/src/main/java/org/apache/sling/jcr/repoinit/impl/NodePropertiesVisitor.java
@@ -241,7 +241,7 @@ class NodePropertiesVisitor extends DoNothingVisitor {
         } else if (value instanceof Calendar) {
             convertedValue = new DateValue((Calendar) value);
         } else {
-            throw new RuntimeException("Unable to convert " + value + " to jcr Value");
+            report("Unable to convert " + value + " to jcr Value");
         }
         return convertedValue;
     }
diff --git a/src/main/java/org/apache/sling/jcr/repoinit/impl/RepoInitException.java b/src/main/java/org/apache/sling/jcr/repoinit/impl/RepoInitException.java
new file mode 100644
index 0000000..dd958f4
--- /dev/null
+++ b/src/main/java/org/apache/sling/jcr/repoinit/impl/RepoInitException.java
@@ -0,0 +1,34 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.sling.jcr.repoinit.impl;
+
+/**
+ * A marker exception which is only thrown by these repoinit operations, so it is
+ * possible to handle them explicitly.
+ *
+ */
+public class RepoInitException extends RuntimeException {
+    
+    public RepoInitException(String msg, Exception e) {
+        super(msg, e);
+    }
+    
+    public RepoInitException(String msg) {
+        super(msg);
+    }
+
+}
diff --git a/src/main/java/org/apache/sling/jcr/repoinit/impl/RepositoryInitializerFactory.java b/src/main/java/org/apache/sling/jcr/repoinit/impl/RepositoryInitializerFactory.java
index ac21355..39844b3 100644
--- a/src/main/java/org/apache/sling/jcr/repoinit/impl/RepositoryInitializerFactory.java
+++ b/src/main/java/org/apache/sling/jcr/repoinit/impl/RepositoryInitializerFactory.java
@@ -143,7 +143,7 @@ public class RepositoryInitializerFactory implements SlingRepositoryInitializer
      * @param logMessage the messages to print when retry
      * @throws Exception if the application fails despite the retry
      */
-    private void applyOperations(Session session, List<Operation> ops, String logMessage) throws RepositoryException {
+    protected void applyOperations(Session session, List<Operation> ops, String logMessage) throws RepositoryException {
 
         RetryableOperation retry = new RetryableOperation.Builder().withBackoffBaseMsec(1000).withMaxRetries(3).build();
         RetryableOperation.RetryableOperationResult result = retry.apply(() -> {
@@ -168,6 +168,14 @@ public class RepositoryInitializerFactory implements SlingRepositoryInitializer
                     // ignore
                 }
                 return new RetryableOperation.RetryableOperationResult(false,false,re);
+            } catch (RepoInitException rie) {
+                // treat them as permanent exceptions, where retry is not useful
+                try {
+                    session.refresh(false); // discard all pending changes
+                } catch (RepositoryException re) {
+                    // ignore
+                }
+                return new RetryableOperation.RetryableOperationResult(false,false,rie);
             }
         }, logMessage);
         if (!result.isSuccessful()) {
diff --git a/src/main/java/org/apache/sling/jcr/repoinit/impl/UserVisitor.java b/src/main/java/org/apache/sling/jcr/repoinit/impl/UserVisitor.java
index c11f1d2..48a5e0f 100644
--- a/src/main/java/org/apache/sling/jcr/repoinit/impl/UserVisitor.java
+++ b/src/main/java/org/apache/sling/jcr/repoinit/impl/UserVisitor.java
@@ -163,10 +163,10 @@ class UserVisitor extends DoNothingVisitor {
         }
     }
 
-    private static void checkUserType(@NotNull String id, @Nullable User user, boolean expectedSystemUser) {
+    private void checkUserType(@NotNull String id, @Nullable User user, boolean expectedSystemUser) {
         if (user != null && user.isSystemUser() != expectedSystemUser) {
             String msg = (expectedSystemUser) ? "Existing user %s is not a service user." : "Existing user %s is a service user.";
-            throw new RuntimeException(String.format(msg, id));
+            report(String.format(msg, id));
         }
     }
 
diff --git a/src/test/java/org/apache/sling/jcr/repoinit/impl/RepositoryInitializerFactoryTest.java b/src/test/java/org/apache/sling/jcr/repoinit/impl/RepositoryInitializerFactoryTest.java
new file mode 100644
index 0000000..ac69d7c
--- /dev/null
+++ b/src/test/java/org/apache/sling/jcr/repoinit/impl/RepositoryInitializerFactoryTest.java
@@ -0,0 +1,59 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.sling.jcr.repoinit.impl;
+
+import org.apache.sling.jcr.repoinit.JcrRepoInitOpsProcessor;
+import org.apache.sling.repoinit.parser.RepoInitParser;
+import org.apache.sling.testing.mock.sling.junit.SlingContext;
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+
+import org.mockito.ArgumentMatchers;
+
+import javax.jcr.RepositoryException;
+import javax.jcr.Session;
+
+import static org.mockito.Mockito.doThrow;
+import static org.mockito.Mockito.mock;
+
+public class RepositoryInitializerFactoryTest {
+
+    @Rule
+    public SlingContext context = new SlingContext();
+
+    RepositoryInitializerFactory sut;
+    JcrRepoInitOpsProcessor processor;
+
+    @Before
+    public void setup() {
+        RepoInitParser parser = mock(RepoInitParser.class);
+        context.registerService(RepoInitParser.class, parser);
+        processor = mock(JcrRepoInitOpsProcessor.class);
+        context.registerService(JcrRepoInitOpsProcessor.class, processor);
+        
+        sut = new RepositoryInitializerFactory();
+        context.registerInjectActivateService(sut);
+    }
+
+    @Test(expected = RepositoryException.class)
+    public void handleUncheckedErrorsInOperations() throws RepositoryException {
+        doThrow(new RepoInitException("some op failed", new Exception("root cause")))
+            .when(processor).apply(ArgumentMatchers.any(), ArgumentMatchers.any());
+        sut.applyOperations(mock(Session.class), null, null); 
+    }
+}