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authorRam Krishna Verma <ram_krishna.verma@bell.ca>2022-02-14 14:17:14 -0500
committerRam Krishna Verma <ram_krishna.verma@bell.ca>2022-02-16 09:18:29 -0500
commit01851b39add9712b2ce66ab23ccb7dd839c1ce0c (patch)
tree99b5159f0f76884ee988866e73142c6651040a6f /spring-utils/src/main
parent6a7b2bafee504d41f061f470746999f4ddcaf964 (diff)
Move common classes to policy/common
Moving YamlHttpMessageConverter & CustomImplicitNamingStrategy classes to policy/common (spring-utils sub-module). So that the same can be used by multiple components without duplicating it. These classes are already covered by tests at each component. Issue-ID: POLICY-3931 Change-Id: I8fc6978b585bfcd930e0916f67961d05946d207c Signed-off-by: Ram Krishna Verma <ram_krishna.verma@bell.ca>
Diffstat (limited to 'spring-utils/src/main')
-rw-r--r--spring-utils/src/main/java/org/onap/policy/common/spring/utils/CustomImplicitNamingStrategy.java36
-rw-r--r--spring-utils/src/main/java/org/onap/policy/common/spring/utils/YamlHttpMessageConverter.java107
2 files changed, 143 insertions, 0 deletions
diff --git a/spring-utils/src/main/java/org/onap/policy/common/spring/utils/CustomImplicitNamingStrategy.java b/spring-utils/src/main/java/org/onap/policy/common/spring/utils/CustomImplicitNamingStrategy.java
new file mode 100644
index 00000000..1a747a3c
--- /dev/null
+++ b/spring-utils/src/main/java/org/onap/policy/common/spring/utils/CustomImplicitNamingStrategy.java
@@ -0,0 +1,36 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2022 Bell Canada. All rights reserved.
+ * ================================================================================
+ * 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.common.spring.utils;
+
+import org.hibernate.boot.model.naming.Identifier;
+import org.hibernate.boot.model.naming.ImplicitJoinColumnNameSource;
+import org.hibernate.boot.model.naming.ImplicitNamingStrategyJpaCompliantImpl;
+
+public class CustomImplicitNamingStrategy extends ImplicitNamingStrategyJpaCompliantImpl {
+
+ private static final long serialVersionUID = 8666774028328486896L;
+
+ @Override
+ public Identifier determineJoinColumnName(ImplicitJoinColumnNameSource source) {
+ String name = source.getReferencedColumnName().getText();
+ return toIdentifier(name, source.getBuildingContext());
+ }
+}
diff --git a/spring-utils/src/main/java/org/onap/policy/common/spring/utils/YamlHttpMessageConverter.java b/spring-utils/src/main/java/org/onap/policy/common/spring/utils/YamlHttpMessageConverter.java
new file mode 100644
index 00000000..d7dc96a9
--- /dev/null
+++ b/spring-utils/src/main/java/org/onap/policy/common/spring/utils/YamlHttpMessageConverter.java
@@ -0,0 +1,107 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2022 Bell Canada. All rights reserved.
+ * ================================================================================
+ * 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.common.spring.utils;
+
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.io.OutputStreamWriter;
+import java.io.Reader;
+import java.io.Writer;
+import java.lang.reflect.Type;
+import java.nio.charset.Charset;
+import java.nio.charset.StandardCharsets;
+import org.onap.policy.common.utils.coder.YamlJsonTranslator;
+import org.springframework.core.GenericTypeResolver;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpInputMessage;
+import org.springframework.http.HttpOutputMessage;
+import org.springframework.http.MediaType;
+import org.springframework.http.converter.AbstractGenericHttpMessageConverter;
+import org.springframework.http.converter.HttpMessageNotReadableException;
+import org.springframework.http.converter.HttpMessageNotWritableException;
+import org.springframework.lang.Nullable;
+
+/**
+ * Custom converter to marshal/unmarshall data structured with YAML media type.
+ */
+public class YamlHttpMessageConverter extends AbstractGenericHttpMessageConverter<Object> {
+
+ public static final Charset DEFAULT_CHARSET = StandardCharsets.UTF_8;
+
+ private static final YamlJsonTranslator TRANSLATOR = new YamlJsonTranslator();
+
+ public YamlHttpMessageConverter() {
+ super(new MediaType("application", "yaml"));
+ setDefaultCharset(DEFAULT_CHARSET);
+ }
+
+ @Override
+ public final Object read(Type type, @Nullable Class<?> contextClass, HttpInputMessage inputMessage)
+ throws IOException {
+ return readResolved(GenericTypeResolver.resolveType(type, contextClass), inputMessage);
+ }
+
+ @Override
+ protected final Object readInternal(Class<?> clazz, HttpInputMessage inputMessage) throws IOException {
+ return readResolved(clazz, inputMessage);
+ }
+
+ private Object readInternal(Type resolvedType, Reader reader) {
+ Class<?> clazz = (Class<?>) resolvedType;
+ return TRANSLATOR.fromYaml(reader, clazz);
+ }
+
+ @Override
+ protected final void writeInternal(Object object, @Nullable Type type, HttpOutputMessage outputMessage)
+ throws IOException {
+ try (var writer = getWriter(outputMessage)) {
+ writeInternal(object, type, writer);
+ writer.flush();
+ } catch (Exception ex) {
+ throw new HttpMessageNotWritableException("Could not write YAML: " + ex.getMessage(), ex);
+ }
+ }
+
+ private void writeInternal(Object object, @Nullable Type type, Writer writer) {
+ TRANSLATOR.toYaml(writer, object);
+ }
+
+ private Object readResolved(Type resolvedType, HttpInputMessage inputMessage) throws IOException {
+ try (var reader = getReader(inputMessage)) {
+ return readInternal(resolvedType, reader);
+ } catch (Exception ex) {
+ throw new HttpMessageNotReadableException("Could not read YAML: " + ex.getMessage(), ex, inputMessage);
+ }
+ }
+
+ private static Reader getReader(HttpInputMessage inputMessage) throws IOException {
+ return new InputStreamReader(inputMessage.getBody(), getCharset(inputMessage.getHeaders()));
+ }
+
+ private static Writer getWriter(HttpOutputMessage outputMessage) throws IOException {
+ return new OutputStreamWriter(outputMessage.getBody(), getCharset(outputMessage.getHeaders()));
+ }
+
+ private static Charset getCharset(HttpHeaders headers) {
+ Charset charset = (headers.getContentType() == null ? null : headers.getContentType().getCharset());
+ return (charset != null ? charset : DEFAULT_CHARSET);
+ }
+} \ No newline at end of file