Add get cm handles by modules names - service layer

Issue-ID: CPS-644
Signed-off-by: niamhcore <niamh.core@est.tech>
Change-Id: Ic2a57df02d533a0066382c12c35be8d524b6cdad

4 files changed, 31 insertions, 3 deletions

diff --git a/cps-service/src/main/java/org/onap/cps/api/CpsAdminService.java b/cps-service/src/main/java/org/onap/cps/api/CpsAdminService.java
index 5b2e104289..1d08cde7ba 100755
--- a/cps-service/src/main/java/org/onap/cps/api/CpsAdminService.java
+++ b/cps-service/src/main/java/org/onap/cps/api/CpsAdminService.java
@@ -77,4 +77,15 @@ public interface CpsAdminService {
      * @param anchorName    anchor name
      */
     void deleteAnchor(@NonNull String dataspaceName, @NonNull String anchorName);
+
+    /**
+     * Query anchor names for the given module names in the provided dataspace.
+     *
+     *
+     * @param dataspaceName dataspace name
+     * @param moduleNames a collection of module names
+     * @return a collection of anchor names in the given dataspace. The schema set for each anchor must include all the
+     *         given module names
+     */
+    Collection<String> queryAnchorNames(String dataspaceName, Collection<String> moduleNames);
 }
diff --git a/cps-service/src/main/java/org/onap/cps/api/impl/CpsAdminServiceImpl.java b/cps-service/src/main/java/org/onap/cps/api/impl/CpsAdminServiceImpl.java
index 47da64895e..4640a0fb31 100755
--- a/cps-service/src/main/java/org/onap/cps/api/impl/CpsAdminServiceImpl.java
+++ b/cps-service/src/main/java/org/onap/cps/api/impl/CpsAdminServiceImpl.java
@@ -23,6 +23,7 @@
 package org.onap.cps.api.impl;
 
 import java.util.Collection;
+import java.util.stream.Collectors;
 import org.onap.cps.api.CpsAdminService;
 import org.onap.cps.spi.CpsAdminPersistenceService;
 import org.onap.cps.spi.model.Anchor;
@@ -59,4 +60,10 @@ public class CpsAdminServiceImpl implements CpsAdminService {
     public void deleteAnchor(final String dataspaceName, final String anchorName) {
         cpsAdminPersistenceService.deleteAnchor(dataspaceName, anchorName);
     }
+
+    @Override
+    public Collection<String> queryAnchorNames(final String dataspaceName, final Collection<String> moduleNames) {
+        final Collection<Anchor> anchors = cpsAdminPersistenceService.queryAnchors(dataspaceName, moduleNames);
+        return anchors.stream().map(anchor -> anchor.getName()).collect(Collectors.toList());
+    }
 }
diff --git a/cps-service/src/main/java/org/onap/cps/spi/CpsAdminPersistenceService.java b/cps-service/src/main/java/org/onap/cps/spi/CpsAdminPersistenceService.java
index f29735fa01..104ac4f3f6 100755
--- a/cps-service/src/main/java/org/onap/cps/spi/CpsAdminPersistenceService.java
+++ b/cps-service/src/main/java/org/onap/cps/spi/CpsAdminPersistenceService.java
@@ -59,13 +59,15 @@ public interface CpsAdminPersistenceService {
     Collection<Anchor> getAnchors(@NonNull String dataspaceName);
 
     /**
-     * Get anchors for the given dataspace name and collection of module names.
+     * Query anchor names for the given module names in the provided dataspace.
+     *
      *
      * @param dataspaceName dataspace name
      * @param moduleNames a collection of module names
-     * @return a collection of anchors
+     * @return a collection of anchor names in the given dataspace. The schema set for each anchor must include all the
+     *         given module names
      */
-    Collection<Anchor> getAnchors(String dataspaceName, Collection<String> moduleNames);
+    Collection<Anchor> queryAnchors(String dataspaceName, Collection<String> moduleNames);
 
     /**
      * Get an anchor in the given dataspace using the anchor name.
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
index be213c0fa0..95afeb4172 100755
--- 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
@@ -70,4 +70,12 @@ class CpsAdminServiceImplSpec extends Specification {
         then: 'associated persistence service method is invoked with same parameters'
              1 * mockCpsAdminPersistenceService.deleteAnchor('someDataspace','someAnchor')
     }
+
+    def 'Query all anchor identifiers for a dataspace and module names.'() {
+        given: 'the persistence service is invoked with the expected parameters and returns a list of anchors'
+            mockCpsAdminPersistenceService.queryAnchors('some-dataspace-name', ['some-module-name']) >> [new Anchor(name:'some-anchor-identifier')]
+        expect: 'get anchor identifiers returns the same anchor identifier returned by the persistence layer'
+            objectUnderTest.queryAnchorNames('some-dataspace-name', ['some-module-name']) == ['some-anchor-identifier']
+
+    }
 }