Retrieve All anchors for a given Dataspace

Issue-ID: CPS-8
Signed-off-by: puthuparambil.aditya <aditya.puthuparambil@bell.ca>
Change-Id: Idb2e4f83d390f078345e556d89781e0bf4a9a41f

4 files changed, 46 insertions, 1 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 98ea8ebd8d..a2c05bfe5a 100644
--- a/cps-service/src/main/java/org/onap/cps/api/CpsAdminService.java
+++ b/cps-service/src/main/java/org/onap/cps/api/CpsAdminService.java
@@ -20,6 +20,7 @@
 
 package org.onap.cps.api;
 
+import java.util.Collection;
 import org.onap.cps.spi.exceptions.CpsException;
 import org.onap.cps.spi.model.Anchor;
 
@@ -36,4 +37,12 @@ public interface CpsAdminService {
      * @throws CpsException if input data is invalid.
      */
     String createAnchor(Anchor anchor);
+
+    /**
+     * Read all anchors in the given a dataspace.
+     *
+     * @param dataspaceName dataspace name
+     * @return a collection of anchors
+     */
+    Collection<Anchor> getAnchors(String dataspaceName);
 }
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 b4deef6785..5d9bc015fd 100644
--- 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
@@ -20,6 +20,7 @@
 
 package org.onap.cps.api.impl;
 
+import java.util.Collection;
 import org.onap.cps.api.CpsAdminService;
 import org.onap.cps.spi.CpsAdminPersistenceService;
 import org.onap.cps.spi.model.Anchor;
@@ -36,4 +37,9 @@ public class CpsAdminServiceImpl implements CpsAdminService {
     public String createAnchor(final Anchor anchor) {
         return cpsAdminPersistenceService.createAnchor(anchor);
     }
+
+    @Override
+    public Collection<Anchor> getAnchors(final String dataspaceName) {
+        return cpsAdminPersistenceService.getAnchors(dataspaceName);
+    }
 }
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 6709c1fb0b..4e88d49a63 100644
--- a/cps-service/src/main/java/org/onap/cps/spi/CpsAdminPersistenceService.java
+++ b/cps-service/src/main/java/org/onap/cps/spi/CpsAdminPersistenceService.java
@@ -1,6 +1,7 @@
 /*-
  * ============LICENSE_START=======================================================
  *  Copyright (C) 2020 Nordix Foundation. All rights reserved.
+ *  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.
@@ -20,6 +21,7 @@
 
 package org.onap.cps.spi;
 
+import java.util.Collection;
 import org.onap.cps.spi.model.Anchor;
 
 /*
@@ -34,4 +36,12 @@ public interface CpsAdminPersistenceService {
      * @return the anchor name.
      */
     String createAnchor(Anchor anchor);
+
+    /**
+     * Read all anchors in the given a dataspace.
+     *
+     * @param dataspaceName dataspace name
+     * @return a collection of anchors
+     */
+    Collection<Anchor> getAnchors(String dataspaceName);
 }
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 65a8e71bca..d31a2f72d2 100644
--- 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
@@ -20,8 +20,8 @@
 
 package org.onap.cps.api.impl
 
-
 import org.onap.cps.spi.CpsAdminPersistenceService
+import org.onap.cps.spi.exceptions.DataspaceNotFoundException
 import org.onap.cps.spi.model.Anchor
 import spock.lang.Specification
 
@@ -52,4 +52,24 @@ class CpsAdminServiceImplSpec extends Specification {
             def exceptionThrownInServiceLayer = thrown(Exception)
             exceptionThrownInServiceLayer == exceptionThrownInPersistenceLayer
     }
+
+    def 'Retrieve all anchors for an existing dataspace'() {
+        given: 'that the dataspace exist and an anchor is associated with the dataspace'
+            Collection<Anchor> anchorCollection = Arrays.asList(anchor)
+            mockCpsAdminPersistenceService.getAnchors('dummyDataspace') >> { anchorCollection }
+        expect: 'we try to retrieve an anchor, a collection of anchor is returned by the service'
+            objectUnderTest.getAnchors('dummyDataspace') == anchorCollection
+    }
+
+    def 'Retrieve all anchors for a non existing dataspace'() {
+        given: 'that the dataspace does not exist, service throws an exception'
+            def exceptionThrownInPersistenceLayer = new DataspaceNotFoundException(_ as String)
+            mockCpsAdminPersistenceService.getAnchors('dummyDataspace') >>
+                    { throw exceptionThrownInPersistenceLayer }
+        when: 'we try to retrieve a anchor with a non-existant dataspace'
+            objectUnderTest.getAnchors('dummyDataspace')
+        then: 'the same exception is thrown by CPS'
+            def exceptionThrownInServiceLayer = thrown(Exception)
+            exceptionThrownInServiceLayer == exceptionThrownInPersistenceLayer
+    }
 }