URL converter

Author: sdelamo

dynamodb/src/main/java/io/micronaut/aws/dynamodb/converters/AttributeValueToURLTypeConverter.java

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+/*
+ * Copyright 2017-2023 original authors
+ *
+ * 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
+ *
+ * https://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 io.micronaut.aws.dynamodb.converters;
+
+import io.micronaut.core.convert.ConversionContext;
+import io.micronaut.core.convert.TypeConverter;
+import jakarta.inject.Singleton;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import software.amazon.awssdk.services.dynamodb.model.AttributeValue;
+
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.util.Optional;
+
+/**
+ * {@link TypeConverter} from {@link URL} to {@link AttributeValue} with {@link URL#URL(String)}
+ * @author Sergio del Amo
+ * @since 4.0.0
+ */
+@Singleton
+public class AttributeValueToURLTypeConverter implements TypeConverter<AttributeValue, URL> {
+    private static final Logger LOG = LoggerFactory.getLogger(AttributeValueToURLTypeConverter.class);
+    @Override
+    public Optional<URL> convert(AttributeValue object, Class<URL> targetType, ConversionContext context) {
+        if (object == null) {
+            return Optional.empty();
+        }
+        String value = object.s();
+        if (value == null) {
+            return Optional.empty();
+        }
+        try {
+            return Optional.of(new URL(value));
+        } catch (MalformedURLException e) {
+            LOG.warn("Malformed URL {}", value);
+            return Optional.empty();
+        }
+    }
+}

dynamodb/src/main/java/io/micronaut/aws/dynamodb/converters/URLToAttributeValueTypeConverter.java

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+/*
+ * Copyright 2017-2023 original authors
+ *
+ * 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
+ *
+ * https://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 io.micronaut.aws.dynamodb.converters;
+
+import io.micronaut.aws.dynamodb.utils.AttributeValueUtils;
+import io.micronaut.core.convert.ConversionContext;
+import io.micronaut.core.convert.TypeConverter;
+import jakarta.inject.Singleton;
+import software.amazon.awssdk.services.dynamodb.model.AttributeValue;
+
+import java.util.Optional;
+import java.net.URL;
+
+/**
+ * {@link TypeConverter} from {@link URL} to {@link AttributeValue} with {@link URL#toString()}.
+ * @author Sergio del Amo
+ * @since 4.0.0
+ */
+@Singleton
+public class URLToAttributeValueTypeConverter implements TypeConverter<URL, AttributeValue> {
+    @Override
+    public Optional<AttributeValue> convert(URL object, Class<AttributeValue> targetType, ConversionContext context) {
+        return object != null ?
+            Optional.of(AttributeValueUtils.s(object.toString())) :
+                Optional.empty();
+    }
+}

dynamodb/src/test/java/io/micronaut/aws/dynamodb/converters/URLToAttributeValueTypeConverterTest.java

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+package io.micronaut.aws.dynamodb.converters;
+
+import io.micronaut.core.convert.ConversionService;
+import io.micronaut.core.type.Argument;
+import io.micronaut.test.extensions.junit5.annotation.MicronautTest;
+import org.junit.jupiter.api.Test;
+import software.amazon.awssdk.services.dynamodb.model.AttributeValue;
+
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.util.Optional;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+@MicronautTest(startApplication = false)
+class URLToAttributeValueTypeConverterTest {
+    @Test
+    void localDateTimeToAttributeValueTypeConverterTest(ConversionService conversionService) throws MalformedURLException {
+        assertNotNull(conversionService);
+        URL value = null;
+        assertFalse(conversionService.convert(value, Argument.of(AttributeValue.class)).isPresent());
+        value = new URL("https://micronaut.io");
+        Optional<AttributeValue> attributeValueOptional = conversionService.convert(value, Argument.of(AttributeValue.class));
+        assertTrue(attributeValueOptional.isPresent());
+        AttributeValue attributeValue = attributeValueOptional.get();
+        assertEquals("https://micronaut.io" ,attributeValue.s());
+        assertEquals(AttributeValue.Type.S, attributeValue.type());
+
+        Optional<URL> urlOptional = conversionService.convert(attributeValue, Argument.of(URL.class));
+        assertTrue(urlOptional.isPresent());
+        assertEquals(value, urlOptional.get());
+    }
+}