Improve CPS Exception handling

- Removing unnecessary level of CPS(Validation)Exception
- Moved exception inside spi package
- Rename exceptions are per agreed new exception hierarchy
- Use new exceptions
- Added SchemaSetAlreadDefined Exception
- Added AnchorAlreadyDefined Exception
- Ensure unique serialVersionUIDs
- Fixed CpsAdmin(Persistence)ServiceImplSpec tests (there was a mix-up about what this class was testing)
- Replaced exception builder with dedicated exception (constructors)

Issue-ID: CPS-8

Change-Id: I9cb80af4951e69ee7b0e99303853955de9d4399f
Signed-off-by: ToineSiebelink <toine.siebelink@est.tech>

3 files changed, 57 insertions, 88 deletions

diff --git a/cps-service/src/test/groovy/org/onap/cps/api/impl/CpsAdminPersistenceServiceImplSpec.groovy b/cps-service/src/test/groovy/org/onap/cps/api/impl/CpsAdminPersistenceServiceImplSpec.groovy
deleted file mode 100644
index 465badd0c..000000000
--- a/cps-service/src/test/groovy/org/onap/cps/api/impl/CpsAdminPersistenceServiceImplSpec.groovy
+++ /dev/null
@@ -1,86 +0,0 @@
-/*
- * ============LICENSE_START=======================================================
- *  Copyright (C) 2020 Nordix Foundation
- *  Modifications Copyright (C) 2020 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.cps.api.impl
-
-import org.onap.cps.exceptions.CpsValidationException
-import org.onap.cps.spi.CpsAdminPersistenceService
-import org.onap.cps.spi.model.Anchor
-import spock.lang.Specification
-
-class CpsAdminPersistenceServiceImplSpec extends Specification {
-    def mockCpsAdminService = Mock(CpsAdminPersistenceService)
-    def objectUnderTest = new CpsAdminServiceImpl()
-
-    def setup() {
-        objectUnderTest.cpsAdminPersistenceService = mockCpsAdminService
-    }
-
-    def 'Create an anchor with a non-existant dataspace'() {
-        given: 'that the dataspace does not exist service throws an exception'
-            Anchor anchor = new Anchor()
-            anchor.setDataspaceName('dummyDataspace')
-            mockCpsAdminService.createAnchor(anchor) >> { throw new CpsValidationException(_ as String, _ as String) }
-        when: 'we try to create a anchor with a non-existant dataspace'
-            objectUnderTest.createAnchor(anchor)
-        then: 'the same exception is thrown by CPS'
-            thrown(CpsValidationException)
-    }
-
-    def 'Create an anchor with invalid dataspace, namespace and revision'() {
-        given: 'that the dataspace, namespace and revison combination does not exist service throws an exception'
-            Anchor anchor = new Anchor()
-            anchor.setDataspaceName('dummyDataspace')
-            anchor.setNamespace('dummyNamespace')
-            anchor.setRevision('dummyRevision')
-            mockCpsAdminService.createAnchor(anchor) >> { throw new CpsValidationException(_ as String, _ as String) }
-        when: 'we try to create a anchor with a non-existant dataspace, namespace and revison combination'
-            objectUnderTest.createAnchor(anchor)
-        then: 'the same exception is thrown by CPS'
-            thrown(CpsValidationException)
-    }
-
-    def 'Create a duplicate anchor'() {
-        given: 'that the anchor already exist service throws an exception'
-            Anchor anchor = new Anchor()
-            anchor.setDataspaceName('dummyDataspace')
-            anchor.setNamespace('dummyNamespace')
-            anchor.setRevision('dummyRevision')
-            anchor.setRevision('dummyAnchorName')
-            mockCpsAdminService.createAnchor(anchor) >> { throw new CpsValidationException(_ as String, _ as String) }
-        when: 'we try to create a duplicate anchor'
-            objectUnderTest.createAnchor(anchor)
-        then: 'the same exception is thrown by CPS'
-            thrown(CpsValidationException)
-    }
-
-    def 'Create an anchor with supplied anchor name, dataspace, namespace and revision'() {
-        given: 'that the anchor does not pre-exist service creates an anchor'
-            Anchor anchor = new Anchor()
-            anchor.setDataspaceName('dummyDataspace')
-            anchor.setNamespace('dummyNamespace')
-            anchor.setRevision('dummyRevision')
-            anchor.setRevision('dummyAnchorName')
-            mockCpsAdminService.createAnchor(anchor) >> 'dummyAnchorName'
-        expect: 'anchor name is returned by service'
-            objectUnderTest.createAnchor(anchor) == 'dummyAnchorName'
-    }
-
-}
diff --git a/cps-service/src/test/groovy/org/onap/cps/api/impl/CpsAdminServiceImplSpec.groovy b/cps-service/src/test/groovy/org/onap/cps/api/impl/CpsAdminServiceImplSpec.groovy
new file mode 100644
index 000000000..65a8e71bc
--- /dev/null
+++ b/cps-service/src/test/groovy/org/onap/cps/api/impl/CpsAdminServiceImplSpec.groovy
@@ -0,0 +1,55 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2020 Nordix Foundation
+ *  Modifications Copyright (C) 2020 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.cps.api.impl
+
+
+import org.onap.cps.spi.CpsAdminPersistenceService
+import org.onap.cps.spi.model.Anchor
+import spock.lang.Specification
+
+class CpsAdminServiceImplSpec extends Specification {
+    def mockCpsAdminPersistenceService = Mock(CpsAdminPersistenceService)
+    def objectUnderTest = new CpsAdminServiceImpl()
+    def anchor = new Anchor()
+
+    def setup() {
+        objectUnderTest.cpsAdminPersistenceService = mockCpsAdminPersistenceService
+    }
+
+    def 'Create an anchor'() {
+        given: 'that the persistence service returns the name of the anchor'
+            def anchorName = 'some anchor name'
+            mockCpsAdminPersistenceService.createAnchor(_) >> anchorName
+        expect: 'the same anchor name is returned by CPS Admin service'
+            objectUnderTest.createAnchor(anchor) == anchorName
+    }
+
+    def 'Create an anchor with some exception in the persistence layer'() {
+        given: 'that the persistence service throws some exception'
+            def exceptionThrownInPersistenceLayer = new RuntimeException()
+            mockCpsAdminPersistenceService.createAnchor(_) >> { throw exceptionThrownInPersistenceLayer }
+        when: 'we try to create an anchor'
+            objectUnderTest.createAnchor(anchor)
+        then: 'the same exception is thrown by the CPS Admin Service'
+            def exceptionThrownInServiceLayer = thrown(Exception)
+            exceptionThrownInServiceLayer == exceptionThrownInPersistenceLayer
+    }
+}
diff --git a/cps-service/src/test/groovy/org/onap/cps/api/impl/CpsModulePersistenceServiceImplSpec.groovy b/cps-service/src/test/groovy/org/onap/cps/api/impl/CpsModulePersistenceServiceImplSpec.groovy
index 79b981b2a..da2df404e 100644
--- a/cps-service/src/test/groovy/org/onap/cps/api/impl/CpsModulePersistenceServiceImplSpec.groovy
+++ b/cps-service/src/test/groovy/org/onap/cps/api/impl/CpsModulePersistenceServiceImplSpec.groovy
@@ -21,8 +21,8 @@
 package org.onap.cps.api.impl
 
 import org.onap.cps.TestUtils
-import org.onap.cps.exceptions.CpsValidationException
 import org.onap.cps.spi.CpsModulePersistenceService
+import org.onap.cps.spi.exceptions.CpsException
 import org.opendaylight.yangtools.yang.common.Revision
 import org.opendaylight.yangtools.yang.model.api.SchemaContext
 import spock.lang.Specification
@@ -65,7 +65,7 @@ class CpsModulePersistenceServiceImplSpec extends Specification {
         when: 'the model is parsed and validated'
             objectUnderTest.parseAndValidateModel(file)
         then: 'a CpsValidationException is thrown'
-            thrown(CpsValidationException)
+            thrown(CpsException)
     }
 
     def 'Store a SchemaContext'() {