Isolating the usage of json-schema validator to drools-pdp

- only drools-pdp have this validation, so moving the class and
its dependencies to there to avoid loading dependencies where it's
not used.

Issue-ID: POLICY-5084
Change-Id: I782e926aac7576c34401c9fef3cfcd3a98350a7f
Signed-off-by: adheli.tavares <adheli.tavares@est.tech>

1 files changed, 176 insertions, 0 deletions

diff --git a/policy-utils/src/test/java/org/onap/policy/drools/policies/StandardValCoderTest.java b/policy-utils/src/test/java/org/onap/policy/drools/policies/StandardValCoderTest.java
new file mode 100644
index 00000000..43f537ed
--- /dev/null
+++ b/policy-utils/src/test/java/org/onap/policy/drools/policies/StandardValCoderTest.java
@@ -0,0 +1,176 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
+ *  Modifications Copyright (C) 2024 Nordix Foundation
+ * ================================================================================
+ * 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.drools.policies;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.junit.jupiter.api.Assertions.fail;
+
+import java.io.StringReader;
+import java.io.StringWriter;
+import java.util.List;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.onap.policy.common.utils.coder.CoderException;
+import org.onap.policy.common.utils.resources.ResourceUtils;
+import org.onap.policy.drools.exception.CoderRuntimeException;
+
+class StandardValCoderTest {
+    private String jsonSchema;
+    private String validJson;
+    private String missingReqJson;
+    private String badRegexJson;
+
+    @Data
+    @NoArgsConstructor
+    public static class ValOuter {
+        @Data
+        @NoArgsConstructor
+        public static class ValInner {
+            public String subItemString;
+            public Integer subItemInteger;
+        }
+
+        public String aaString;
+        public int anInteger;
+        public boolean aaBoolean;
+        public List<ValInner> aaCollection;
+    }
+
+    @BeforeEach
+    public void testSetUp() {
+        jsonSchema = getJson("src/test/resources/coder/test.schema.json");
+        validJson = getJson("src/test/resources/coder/valid.json");
+        missingReqJson = getJson("src/test/resources/coder/missing-required.json");
+        badRegexJson = getJson("src/test/resources/coder/bad-regex.json");
+    }
+
+    @Test
+    void testDecode() throws CoderException {
+        StandardValCoder valCoder = new StandardValCoder(jsonSchema);
+
+        ValOuter valOuter = valCoder.decode(validJson, ValOuter.class);
+        assertValidJson(valOuter);
+
+        StringReader reader = new StringReader(validJson);
+        valOuter = valCoder.decode(reader, ValOuter.class);
+        assertValidJson(valOuter);
+
+        try {
+            valCoder.decode(missingReqJson, ValOuter.class);
+            fail("missing required field should have been flagged by the schema validation");
+        } catch (CoderException e) {
+            assertThat(e.getMessage()).contains("Missing property aaCollection");
+        }
+
+        try {
+            valCoder.decode(badRegexJson, ValOuter.class);
+            fail("bad regex should have been flagged by the schema validation");
+        } catch (CoderException e) {
+            assertThat(e.getMessage())
+                .contains("Validation errors: \"abc123\" at #/aaString failed")
+                .contains("Did not match pattern: ^([a-z]*)$");
+        }
+    }
+
+    @Test
+    void testEncode() throws CoderException {
+        StandardValCoder valCoder = new StandardValCoder(jsonSchema);
+        ValOuter valOuter = valCoder.decode(validJson, ValOuter.class);
+
+        String valOuterJson = valCoder.encode(valOuter);
+        assertEquals(valOuter, valCoder.decode(valOuterJson, ValOuter.class));
+        assertValidJson(valOuter);
+
+        StringWriter writer = new StringWriter();
+        valCoder.encode(writer, valOuter);
+        assertEquals(valOuterJson, writer.toString());
+
+        // test exception case with an empty object
+        assertThatThrownBy(() -> valCoder.encode(new ValOuter())).isInstanceOf(CoderException.class);
+    }
+
+    @Test
+    void testPretty() throws CoderException {
+        StandardValCoder valCoder = new StandardValCoder(jsonSchema);
+        ValOuter valOuter = valCoder.decode(validJson, ValOuter.class);
+
+        String valOuterJson = valCoder.encode(valOuter);
+        assertEquals(valOuterJson, valCoder.encode(valOuter, false));
+        String prettyValOuterJson = valCoder.encode(valOuter, true);
+        assertNotEquals(valOuterJson, prettyValOuterJson);
+
+        assertEquals(valOuter, valCoder.decode(prettyValOuterJson, ValOuter.class));
+
+        // test exception cases with an empty object
+        assertThatThrownBy(() -> valCoder.encode(new ValOuter(), false)).isInstanceOf(CoderException.class);
+        assertThatThrownBy(() -> valCoder.encode(new ValOuter(), true)).isInstanceOf(CoderException.class);
+    }
+
+    @Test
+    void testConformance() {
+        StandardValCoder valCoder = new StandardValCoder(jsonSchema);
+        assertTrue(valCoder.isConformant(validJson));
+        assertFalse(valCoder.isConformant(missingReqJson));
+        assertFalse(valCoder.isConformant(badRegexJson));
+    }
+
+    @Test
+    void testNullValues() throws CoderException {
+        StandardValCoder valCoder = new StandardValCoder(jsonSchema);
+        assertThrows(NullPointerException.class, () -> valCoder.toJson(null));
+        assertThrows(NullPointerException.class, () -> valCoder.isConformant(null));
+        assertThrows(NullPointerException.class, () -> valCoder.conformance(null));
+
+        assertThrows(NullPointerException.class, () -> valCoder.toJson(null, null));
+        var writer = new StringWriter();
+        assertThrows(NullPointerException.class, () -> valCoder.toJson(writer, null));
+        ValOuter valOuter = valCoder.decode(validJson, ValOuter.class);
+        assertThrows(NullPointerException.class, () -> valCoder.toJson(null, valOuter));
+    }
+
+    @Test
+    void testConstructor() {
+        assertThrows(NullPointerException.class, () -> new StandardValCoder(null));
+
+        assertThrows(CoderRuntimeException.class, () -> new StandardValCoder("$schema"));
+    }
+
+    private void assertValidJson(ValOuter valOuter) {
+        assertEquals("abcd", valOuter.getAaString());
+        assertEquals(90, valOuter.getAnInteger());
+        assertTrue(valOuter.isAaBoolean());
+        assertEquals("defg", valOuter.getAaCollection().get(0).getSubItemString());
+        assertEquals(Integer.valueOf(1200), valOuter.getAaCollection().get(0).getSubItemInteger());
+    }
+
+    private String getJson(String filePath) {
+        return ResourceUtils.getResourceAsString(filePath);
+    }
+}
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