diff --git a/org.fortiss.tooling.kernel/src/org/fortiss/tooling/kernel/extension/exception/.ratings b/org.fortiss.tooling.kernel/src/org/fortiss/tooling/kernel/extension/exception/.ratings
index 93902b1791fe40cb5d614b507e3ff042176e157c..2fc9de7d14515daaed8fc61ad34939036e726334 100644
--- a/org.fortiss.tooling.kernel/src/org/fortiss/tooling/kernel/extension/exception/.ratings
+++ b/org.fortiss.tooling.kernel/src/org/fortiss/tooling/kernel/extension/exception/.ratings
@@ -1,2 +1,3 @@
+AllChainTransformationsFailedException.java 6ed750cd9e9f58ecaf479c928840f90134d91b7e GREEN
ChainTransformationFailedException.java a85fc087751bdf2c46d4ca0ff25e5369a18899a0 GREEN
TransformationFailedException.java b79fdca068089c973d8a06161dc3a3bbb6e0635e GREEN
diff --git a/org.fortiss.tooling.kernel/src/org/fortiss/tooling/kernel/extension/exception/AllChainTransformationsFailedException.java b/org.fortiss.tooling.kernel/src/org/fortiss/tooling/kernel/extension/exception/AllChainTransformationsFailedException.java
new file mode 100644
index 0000000000000000000000000000000000000000..6ed750cd9e9f58ecaf479c928840f90134d91b7e
--- /dev/null
+++ b/org.fortiss.tooling.kernel/src/org/fortiss/tooling/kernel/extension/exception/AllChainTransformationsFailedException.java
@@ -0,0 +1,97 @@
+/*-------------------------------------------------------------------------+
+| Copyright 2021 fortiss GmbH |
+| |
+| Licensed 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.fortiss.tooling.kernel.extension.exception;
+
+import java.util.List;
+
+import org.eclipse.emf.ecore.EObject;
+import org.fortiss.tooling.kernel.extension.data.ITransformationContext;
+import org.fortiss.tooling.kernel.utils.TransformationUtils;
+
+/**
+ * An exception thrown by
+ * {@link TransformationUtils#createTransformedObjectFor(EObject, Class, ITransformationContext)}
+ * if all chain transformations fail, keeping track of all exceptions thrown by each failed
+ * provider.
+ *
+ * @author muntean
+ */
+public class AllChainTransformationsFailedException extends ChainTransformationFailedException {
+
+ /** Number of tabs initially used when returning the exception's message. */
+ private final int INITIAL_TABS = 0;
+
+ /** Stores the {@link ChainTransformationFailedException}s thrown by each failed provider. */
+ private final List<ChainTransformationFailedException> exceptionList;
+
+ /** Constructor. */
+ public AllChainTransformationsFailedException(
+ List<ChainTransformationFailedException> exceptionList) {
+ super(null, null, null, null);
+ this.exceptionList = exceptionList;
+ }
+
+ /** {@inheritDoc} */
+ @Override
+ public String getMessage() {
+ return getMessage(INITIAL_TABS);
+ }
+
+ /**
+ * Recursive method iterating through the caught {@link TransformationFailedException}s
+ * backtracking to the source of the error by examining the cause of the exceptions.
+ *
+ * @param counter
+ * Number of tabs used in the current recursive step.
+ * @return Message expressing the failed provider + cause.
+ */
+ private String getMessage(int counter) {
+ String msg = "";
+ String tabs = addTabs(counter);
+ for(TransformationFailedException ctfe : this.exceptionList) {
+ msg += tabs + "Failed Provider:\n";
+ msg += tabs + ctfe.getFailedProvider().getClass().getSimpleName() + "\n";
+
+ // Here, the cause is either a...
+ // ... ChainTransformationsFailedException or an
+ // ... AllChainTransformationsFailedException.
+ TransformationFailedException cause = (TransformationFailedException)ctfe.getCause();
+ if(cause != null) {
+ msg += tabs + "Cause:\n";
+ if(cause instanceof AllChainTransformationsFailedException)
+ msg += ((AllChainTransformationsFailedException)cause).getMessage(counter + 1) +
+ "\n";
+ else
+ msg += tabs + cause.getMessage() + "\n";
+ }
+ }
+ return msg;
+ }
+
+ /** Returns a string with as many tabs as specified by the parameter. */
+ private String addTabs(int counter) {
+ String msg = "";
+ for(int i = 0; i < counter; i++) {
+ msg += "\t";
+ }
+ return msg;
+ }
+
+ /** Returns the list {@link ChainTransformationFailedException}s. */
+ public List<ChainTransformationFailedException> getExceptionList() {
+ return exceptionList;
+ }
+}
diff --git a/org.fortiss.tooling.kernel/src/org/fortiss/tooling/kernel/utils/.ratings b/org.fortiss.tooling.kernel/src/org/fortiss/tooling/kernel/utils/.ratings
index 8472464b2108e3c0d6bd2e52d96653c7f522acb8..726a969acb13ab0921cee1ad9fabf5ac31056ed0 100644
--- a/org.fortiss.tooling.kernel/src/org/fortiss/tooling/kernel/utils/.ratings
+++ b/org.fortiss.tooling.kernel/src/org/fortiss/tooling/kernel/utils/.ratings
@@ -11,5 +11,5 @@ KernelServiceBasedModelListenerBase.java 8d916509ae75f7118ce72564ee715c46556fb70
LoggingUtils.java 0e0aa5d466d80ea29cfc7e91178b23a5cdd4ddf7 GREEN
PrototypesUtils.java ec75bed75cfc5103f1f38e3a29df86f729428775 GREEN
ResourceUtils.java 1388e642ceeead4c8852e7ae39c6d57a362d4845 GREEN
-TransformationUtils.java 552d3a9d56d34450be781af828efe0b8aa5d359e GREEN
+TransformationUtils.java a060ec8a20c53a3c4996dd2628d194181e7d9ec3 GREEN
UniqueIDUtils.java 665955b1790c1bd1c2087e23114da920bfec2265 GREEN
diff --git a/org.fortiss.tooling.kernel/src/org/fortiss/tooling/kernel/utils/TransformationUtils.java b/org.fortiss.tooling.kernel/src/org/fortiss/tooling/kernel/utils/TransformationUtils.java
index 552d3a9d56d34450be781af828efe0b8aa5d359e..a060ec8a20c53a3c4996dd2628d194181e7d9ec3 100644
--- a/org.fortiss.tooling.kernel/src/org/fortiss/tooling/kernel/utils/TransformationUtils.java
+++ b/org.fortiss.tooling.kernel/src/org/fortiss/tooling/kernel/utils/TransformationUtils.java
@@ -17,11 +17,13 @@ package org.fortiss.tooling.kernel.utils;
import static org.eclipse.core.runtime.Assert.isNotNull;
+import java.util.ArrayList;
import java.util.List;
import org.eclipse.emf.ecore.EObject;
import org.fortiss.tooling.kernel.extension.data.ITransformationContext;
import org.fortiss.tooling.kernel.extension.data.TransformationProviderChain;
+import org.fortiss.tooling.kernel.extension.exception.AllChainTransformationsFailedException;
import org.fortiss.tooling.kernel.extension.exception.ChainTransformationFailedException;
import org.fortiss.tooling.kernel.service.ITransformationService;
@@ -52,6 +54,8 @@ public final class TransformationUtils {
throws ChainTransformationFailedException {
List<TransformationProviderChain> chainList = ITransformationService.getInstance()
.getTransformationProviderChain(sourceElement.getClass(), targetClass, context);
+ // Stores the ChainTransformationFailedExceptions thrown by each failed provider.
+ List<ChainTransformationFailedException> exceptionList = new ArrayList<>();
if(!chainList.isEmpty()) {
for(TransformationProviderChain chain : chainList) {
try {
@@ -66,11 +70,14 @@ public final class TransformationUtils {
" ensure correct operation of all involved TransformationProviders.");
return executableObject;
} catch(ChainTransformationFailedException ctfe) {
- // fall through
+ exceptionList.add(ctfe);
}
}
}
- throw new NoTransformationChainFound(sourceElement, targetClass);
+ if(exceptionList.isEmpty())
+ throw new NoTransformationChainFound(sourceElement, targetClass);
+
+ throw new AllChainTransformationsFailedException(exceptionList);
}
/** Exception thrown when no transformation chain was found. */