From ae4f69745dbbf780323b40d5345c287ea22776f9 Mon Sep 17 00:00:00 2001
From: Jim Hahn <jrh3@att.com>
Date: Mon, 17 Feb 2020 13:21:08 -0500
Subject: Add convert() to Coder

This addresses Liam's review comment about moving the "translate"
method from the actor Util class into policy-common.
Added a method to Coder to convert from one object type to
another (e.g., from a Map to a POJO, or vice versa).

Issue-ID: POLICY-2363
Signed-off-by: Jim Hahn <jrh3@att.com>
Change-Id: I2a0b5ab4ce4b0eeda216a57cbe23a8bb64f64940
---
 .../onap/policy/common/utils/coder/CoderTest.java  | 129 +++++++++++++++++++++
 1 file changed, 129 insertions(+)
 create mode 100644 utils/src/test/java/org/onap/policy/common/utils/coder/CoderTest.java

(limited to 'utils/src/test/java/org/onap/policy/common/utils/coder/CoderTest.java')

diff --git a/utils/src/test/java/org/onap/policy/common/utils/coder/CoderTest.java b/utils/src/test/java/org/onap/policy/common/utils/coder/CoderTest.java
new file mode 100644
index 00000000..01821504
--- /dev/null
+++ b/utils/src/test/java/org/onap/policy/common/utils/coder/CoderTest.java
@@ -0,0 +1,129 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP
+ * ================================================================================
+ * Copyright (C) 2020 AT&T Intellectual Property. 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.common.utils.coder;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNull;
+
+import java.io.File;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.io.Reader;
+import java.io.Writer;
+import org.junit.Before;
+import org.junit.Test;
+
+public class CoderTest {
+    private static final Long LONG = 10L;
+    private static final Integer INTEGER = 10;
+    private static final String INT_TEXT = INTEGER.toString();
+    private static final String TEXT = "some text";
+    private static final String ENCODED = "encoded value";
+    private static final String DECODED = "decoded value";
+
+    private MyCoder coder;
+
+    @Before
+    public void setUp() {
+        coder = new MyCoder();
+    }
+
+    @Test
+    public void testConvert() throws CoderException {
+        assertNull(coder.convert(null, String.class));
+
+        // same class of object
+        assertEquals(TEXT, coder.convert(TEXT, String.class));
+        assertEquals(INTEGER, coder.convert(INTEGER, Integer.class));
+
+        // source is a string
+        assertEquals(INTEGER, coder.convert(TEXT, Integer.class));
+
+        // target is a string
+        assertEquals(INT_TEXT, coder.convert(INTEGER, String.class));
+
+        // source and target are different types, neither is a string
+        assertEquals(INTEGER, coder.convert(LONG, Integer.class));
+    }
+
+    private static class MyCoder implements Coder {
+        @Override
+        public String encode(Object object) throws CoderException {
+            return (object.getClass() == String.class ? ENCODED : INT_TEXT);
+        }
+
+        @Override
+        public String encode(Object object, boolean pretty) throws CoderException {
+            // unused
+            return null;
+        }
+
+        @Override
+        public void encode(Writer target, Object object) throws CoderException {
+            // unused
+        }
+
+        @Override
+        public void encode(OutputStream target, Object object) throws CoderException {
+            // unused
+        }
+
+        @Override
+        public void encode(File target, Object object) throws CoderException {
+            // unused
+        }
+
+        @Override
+        public <T> T decode(String json, Class<T> clazz) throws CoderException {
+            return (clazz == String.class ? clazz.cast(DECODED) : clazz.cast(INTEGER));
+        }
+
+        @Override
+        public <T> T decode(Reader source, Class<T> clazz) throws CoderException {
+            // unused
+            return null;
+        }
+
+        @Override
+        public <T> T decode(InputStream source, Class<T> clazz) throws CoderException {
+            // unused
+            return null;
+        }
+
+        @Override
+        public <T> T decode(File source, Class<T> clazz) throws CoderException {
+            // unused
+            return null;
+        }
+
+        @Override
+        public StandardCoderObject toStandard(Object object) throws CoderException {
+            // unused
+            return null;
+        }
+
+        @Override
+        public <T> T fromStandard(StandardCoderObject sco, Class<T> clazz) throws CoderException {
+            // unused
+            return null;
+        }
+    }
+}
-- 
cgit 1.2.3-korg