[java-metadata-aggregator] branch main updated: MDA-301 - Add detail to IllegalArgumentException handling in BaseAsValidator

Ian Young ian at iay.org.uk
Tue Jan 30 16:37:41 UTC 2024


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View the commit online:
http://git.shibboleth.net/view/?p=java-metadata-aggregator.git;a=commit;h=0ea335c538756219afc2f80f01c84be691164d1a

The following commit(s) were added to refs/heads/main by this push:
     new 0ea335c  MDA-301 - Add detail to IllegalArgumentException handling in BaseAsValidator
0ea335c is described below

commit 0ea335c538756219afc2f80f01c84be691164d1a
Author: Ian Young <ian at iay.org.uk>
AuthorDate: Tue Jan 30 14:49:32 2024 +0000

    MDA-301 - Add detail to IllegalArgumentException handling in BaseAsValidator
    
    https://shibboleth.atlassian.net/browse/MDA-301
---
 .../metadata/validate/BaseAsValidator.java         |  2 +-
 .../metadata/validate/BaseValidator.java           | 66 ++++++++++++++++++++-
 .../metadata/validate/BaseAsValidatorTest.java     | 68 ++++++++++++++++++++++
 3 files changed, 132 insertions(+), 4 deletions(-)

diff --git a/mda-framework/src/main/java/net/shibboleth/metadata/validate/BaseAsValidator.java b/mda-framework/src/main/java/net/shibboleth/metadata/validate/BaseAsValidator.java
index fb8eeb7..62154b7 100644
--- a/mda-framework/src/main/java/net/shibboleth/metadata/validate/BaseAsValidator.java
+++ b/mda-framework/src/main/java/net/shibboleth/metadata/validate/BaseAsValidator.java
@@ -130,7 +130,7 @@ public abstract class BaseAsValidator<V, A> extends BaseValidator implements Val
             return applyValidators(v, item);
         } catch (final IllegalArgumentException e) {
             if (isConversionRequired()) {
-                addErrorMessage(t, item, stageId);
+                addErrorMessage(t, item, stageId, e);
                 return Action.DONE;
             } else {
                 return Action.CONTINUE;
diff --git a/mda-framework/src/main/java/net/shibboleth/metadata/validate/BaseValidator.java b/mda-framework/src/main/java/net/shibboleth/metadata/validate/BaseValidator.java
index 3b8d35c..6a624ec 100644
--- a/mda-framework/src/main/java/net/shibboleth/metadata/validate/BaseValidator.java
+++ b/mda-framework/src/main/java/net/shibboleth/metadata/validate/BaseValidator.java
@@ -15,6 +15,7 @@
 package net.shibboleth.metadata.validate;
 
 import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
 import javax.annotation.concurrent.GuardedBy;
 import javax.annotation.concurrent.ThreadSafe;
 
@@ -129,11 +130,53 @@ public abstract class BaseValidator extends AbstractIdentifiableInitializableCom
         }
     }
 
+    /**
+     * Formats the message with the given subject.
+     *
+     * @param subject subject of the validation, to be provided as an argument to the
+     *      formatting string.
+     * @return formatted message
+     *
+     * @since 0.10.0
+     */
+    private @Nonnull String formatMessage(final @Nonnull Object subject) {
+        final String mess = String.format(getMessage(), subject);
+        assert mess != null;
+        return mess;
+    }
+
+    /**
+     * Formats the message with the given subject.
+     *
+     * <p>
+     * If the supplied {@link Throwable} has a non-<code>null</code> detail
+     * message, this is added to the resulting formatted string.
+     * </p>
+     *
+     * @param subject subject of the validation, to be provided as an argument to the
+     *      formatting string.
+     * @param cause a {@link Throwable} which is to be interpreted as the cause of the
+     *      validation failure.
+     * @return formatted message
+     *
+     * @since 0.10.0
+     */
+    private @Nonnull String formatMessage(final @Nonnull Object subject, final @Nonnull Throwable cause) {
+        final @Nullable var cmsg = cause.getMessage();
+        if (cmsg == null) {
+            return formatMessage(subject);
+        } else {
+            return formatMessage(subject) + " (" + cmsg + ")";
+        }
+    }
+    
     /**
      * Add an {@link ErrorStatus} to the given {@link Item}.
      *
+     * <p>
      * The status message included in the {@link ErrorStatus} is generated
      * by formatting the provided value with the {@link #message} field.
+     * </p>
      *
      * @param extra extra value to include in the status metadata
      * @param item {@link Item} to add the status metadata to
@@ -143,9 +186,26 @@ public abstract class BaseValidator extends AbstractIdentifiableInitializableCom
      */
     protected void addErrorMessage(@Nonnull final Object extra, @Nonnull final Item<?> item,
             @Nonnull final String stageId) {
-        final String mess = String.format(getMessage(), extra);
-        assert mess != null;
-        addError(mess, item, stageId);
+        addError(formatMessage(extra), item, stageId);
     }
 
+    /**
+     * Add an {@link ErrorStatus} to the given {@link Item}.
+     *
+     * <p>
+     * The status message included in the {@link ErrorStatus} is generated
+     * by formatting the provided value with the {@link #message} field.
+     * </p>
+     *
+     * @param extra extra value to include in the status metadata
+     * @param item {@link Item} to add the status metadata to
+     * @param stageId component identifier for the calling stage
+     * @param cause reason for the validation failure, as a {@link Throwable}
+     *
+     * @since 0.10.0
+     */
+    protected void addErrorMessage(@Nonnull final Object extra, @Nonnull final Item<?> item,
+            @Nonnull final String stageId, @Nonnull final Throwable cause) {
+        addError(formatMessage(extra, cause), item, stageId);
+    }
 }
diff --git a/mda-framework/src/test/java/net/shibboleth/metadata/validate/BaseAsValidatorTest.java b/mda-framework/src/test/java/net/shibboleth/metadata/validate/BaseAsValidatorTest.java
new file mode 100644
index 0000000..bea4466
--- /dev/null
+++ b/mda-framework/src/test/java/net/shibboleth/metadata/validate/BaseAsValidatorTest.java
@@ -0,0 +1,68 @@
+package net.shibboleth.metadata.validate;
+
+import javax.annotation.Nonnull;
+
+import org.testng.Assert;
+import org.testng.annotations.Test;
+
+import net.shibboleth.metadata.ErrorStatus;
+import net.shibboleth.metadata.testing.MockItem;
+import net.shibboleth.metadata.validate.Validator.Action;
+
+public class BaseAsValidatorTest {
+
+
+    /**
+     * Test an "as" validator which always fails to convert.
+     */
+    private class BoomValidator extends BaseAsValidator<String, String> {
+
+        @Override
+        protected @Nonnull String convert(@Nonnull String from) throws IllegalArgumentException {
+            if (from.equals("nothing")) {
+                throw new IllegalArgumentException();
+            } else {
+                throw new IllegalArgumentException("something");
+            }
+        }
+
+    }
+
+    @Test
+    public void convertTestNoDetail() throws Exception {
+
+        final var validator = new BoomValidator();
+        validator.setId("test");
+        validator.initialize();
+
+        final var item = new MockItem("test");
+
+        final var res = validator.validate("nothing", item, "stage");
+        Assert.assertEquals(res, Action.DONE);
+
+        final var errors = item.getItemMetadata().get(ErrorStatus.class);
+        Assert.assertEquals(errors.size(), 1);
+        final var err = errors.get(0);
+        Assert.assertEquals(err.getStatusMessage(), "value rejected: 'nothing'");
+        Assert.assertEquals(err.getComponentId(), "stage/test");
+    }
+
+    @Test
+    public void convertTestWithDetail() throws Exception {
+
+        final var validator = new BoomValidator();
+        validator.setId("test");
+        validator.initialize();
+
+        final var item = new MockItem("test");
+
+        final var res = validator.validate("not nothing", item, "stage");
+        Assert.assertEquals(res, Action.DONE);
+
+        final var errors = item.getItemMetadata().get(ErrorStatus.class);
+        Assert.assertEquals(errors.size(), 1);
+        final var err = errors.get(0);
+        Assert.assertEquals(err.getStatusMessage(), "value rejected: 'not nothing' (something)");
+        Assert.assertEquals(err.getComponentId(), "stage/test");
+    }
+}

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