Added get APIs for dataspace.

Issue-ID: CPS-1186
Change-ID: I73f97f986a817d423f93a8d922dcd9647b0829aa
Signed-off-by: rajesh.kumar <rk00747546@techmahindra.com>

14 files changed, 399 insertions, 2 deletions

diff --git a/cps-rest/docs/openapi/components.yml b/cps-rest/docs/openapi/components.yml
index 269e724b18..fb0947e54a 100644
--- a/cps-rest/docs/openapi/components.yml
+++ b/cps-rest/docs/openapi/components.yml
@@ -1,6 +1,7 @@
 # ============LICENSE_START=======================================================
 # Copyright (c) 2021-2022 Bell Canada.
 # Modifications Copyright (C) 2021-2022 Nordix Foundation
+# Modifications Copyright (C) 2022 TechMahindra Ltd.
 # ================================================================================
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -34,6 +35,14 @@ components:
           type: string
           example: my-schema-set
 
+    DataspaceDetails:
+      type: object
+      title: Dataspace details by dataspace Name
+      properties:
+        name:
+          type: string
+          example: my-dataspace
+
     ErrorMessage:
       type: object
       title: Error
diff --git a/cps-rest/docs/openapi/cpsAdmin.yml b/cps-rest/docs/openapi/cpsAdmin.yml
index 5852c0cf16..e887ef2c07 100644
--- a/cps-rest/docs/openapi/cpsAdmin.yml
+++ b/cps-rest/docs/openapi/cpsAdmin.yml
@@ -1,6 +1,7 @@
 # ============LICENSE_START=======================================================
 # Copyright (c) 2021 Bell Canada.
 # Modifications Copyright (C) 2021-2022 Nordix Foundation
+# Modifications Copyright (C) 2022 TechMahindra Ltd.
 # ================================================================================
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -233,4 +234,54 @@ anchorByDataspaceAndAnchorName:
       '403':
         $ref: 'components.yml#/components/responses/Forbidden'
       '500':
-        $ref: 'components.yml#/components/responses/InternalServerError'
\ No newline at end of file
+        $ref: 'components.yml#/components/responses/InternalServerError'
+
+adminDataspaces:
+ get:
+   description: Read all dataspaces
+   tags:
+     - cps-admin
+   summary: Get all dataspaces
+   operationId: getAllDataspaces
+   responses:
+     '200':
+       description: OK
+       content:
+         application/json:
+           schema:
+             type: array
+             items:
+               $ref: 'components.yml#/components/schemas/DataspaceDetails'
+     '400':
+       $ref: 'components.yml#/components/responses/BadRequest'
+     '401':
+       $ref: 'components.yml#/components/responses/Unauthorized'
+     '403':
+       $ref: 'components.yml#/components/responses/Forbidden'
+     '500':
+       $ref: 'components.yml#/components/responses/InternalServerError'
+
+adminDataspace:
+ get:
+   description: Read a dataspace given a dataspace name
+   tags:
+     - cps-admin
+   summary: Get a dataspace
+   operationId: getDataspace
+   parameters:
+      - $ref: 'components.yml#/components/parameters/dataspaceNameInPath'
+   responses:
+     '200':
+       description: OK
+       content:
+         application/json:
+           schema:
+             $ref: 'components.yml#/components/schemas/DataspaceDetails'
+     '400':
+       $ref: 'components.yml#/components/responses/BadRequest'
+     '401':
+       $ref: 'components.yml#/components/responses/Unauthorized'
+     '403':
+       $ref: 'components.yml#/components/responses/Forbidden'
+     '500':
+       $ref: 'components.yml#/components/responses/InternalServerError'
diff --git a/cps-rest/docs/openapi/openapi.yml b/cps-rest/docs/openapi/openapi.yml
index 290bbf44b2..e170295504 100644
--- a/cps-rest/docs/openapi/openapi.yml
+++ b/cps-rest/docs/openapi/openapi.yml
@@ -2,6 +2,7 @@
 #  Copyright (C) 2021 Nordix Foundation
 #  Modifications Copyright (C) 2021 Pantheon.tech
 #  Modifications Copyright (C) 2021 Bell Canada.
+#  Modifications Copyright (C) 2022 TechMahindra Ltd.
 #  ================================================================================
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -52,6 +53,12 @@ paths:
   /v1/dataspaces:
     $ref: 'cpsAdmin.yml#/dataspaces'
 
+  /v1/admin/dataspaces:
+    $ref: 'cpsAdmin.yml#/adminDataspaces'
+
+  /v1/admin/dataspaces/{dataspace-name}:
+    $ref: 'cpsAdmin.yml#/adminDataspace'
+
   /v1/dataspaces/{dataspace-name}/anchors:
     $ref: 'cpsAdmin.yml#/anchorsByDataspace'
 
diff --git a/cps-rest/src/main/java/org/onap/cps/rest/controller/AdminRestController.java b/cps-rest/src/main/java/org/onap/cps/rest/controller/AdminRestController.java
index 2707d9f294..a29f8d2969 100755
--- a/cps-rest/src/main/java/org/onap/cps/rest/controller/AdminRestController.java
+++ b/cps-rest/src/main/java/org/onap/cps/rest/controller/AdminRestController.java
@@ -3,6 +3,7 @@
  *  Copyright (C) 2020-2022 Nordix Foundation
  *  Modifications Copyright (C) 2020-2021 Bell Canada.
  *  Modifications Copyright (C) 2021 Pantheon.tech
+ *  Modifications Copyright (C) 2022 TechMahindra Ltd.
  *  ================================================================================
  *  Licensed under the Apache License, Version 2.0 (the "License");
  *  you may not use this file except in compliance with the License.
@@ -35,8 +36,10 @@ import org.onap.cps.api.CpsAdminService;
 import org.onap.cps.api.CpsModuleService;
 import org.onap.cps.rest.api.CpsAdminApi;
 import org.onap.cps.rest.model.AnchorDetails;
+import org.onap.cps.rest.model.DataspaceDetails;
 import org.onap.cps.rest.model.SchemaSetDetails;
 import org.onap.cps.spi.model.Anchor;
+import org.onap.cps.spi.model.Dataspace;
 import org.onap.cps.spi.model.SchemaSet;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
@@ -174,4 +177,19 @@ public class AdminRestController implements CpsAdminApi {
             .collect(Collectors.toList());
         return new ResponseEntity<>(anchorDetails, HttpStatus.OK);
     }
+
+    @Override
+    public ResponseEntity<List<DataspaceDetails>> getAllDataspaces() {
+        final Collection<Dataspace> dataspaces = cpsAdminService.getAllDataspaces();
+        final List<DataspaceDetails> dataspaceDetails = dataspaces.stream().map(cpsRestInputMapper::toDataspaceDetails)
+                .collect(Collectors.toList());
+        return new ResponseEntity<>(dataspaceDetails, HttpStatus.OK);
+    }
+
+    @Override
+    public ResponseEntity<DataspaceDetails> getDataspace(final String dataspaceName) {
+        final Dataspace dataspace = cpsAdminService.getDataspace(dataspaceName);
+        final DataspaceDetails dataspaceDetails = cpsRestInputMapper.toDataspaceDetails(dataspace);
+        return new ResponseEntity<>(dataspaceDetails, HttpStatus.OK);
+    }
 }
diff --git a/cps-rest/src/main/java/org/onap/cps/rest/controller/CpsRestInputMapper.java b/cps-rest/src/main/java/org/onap/cps/rest/controller/CpsRestInputMapper.java
index d0a4a108c8..3d3ab1145b 100644
--- a/cps-rest/src/main/java/org/onap/cps/rest/controller/CpsRestInputMapper.java
+++ b/cps-rest/src/main/java/org/onap/cps/rest/controller/CpsRestInputMapper.java
@@ -1,6 +1,7 @@
 /*
  *  ============LICENSE_START=======================================================
  *  Copyright (C) 2022 Nordix Foundation
+ *  Modifications Copyright (C) 2022 TechMahindra Ltd.
  *  ================================================================================
  *  Licensed under the Apache License, Version 2.0 (the "License");
  *  you may not use this file except in compliance with the License.
@@ -25,8 +26,10 @@ import org.mapstruct.Mapping;
 import org.mapstruct.NullValueCheckStrategy;
 import org.mapstruct.NullValuePropertyMappingStrategy;
 import org.onap.cps.rest.model.AnchorDetails;
+import org.onap.cps.rest.model.DataspaceDetails;
 import org.onap.cps.rest.model.SchemaSetDetails;
 import org.onap.cps.spi.model.Anchor;
+import org.onap.cps.spi.model.Dataspace;
 import org.onap.cps.spi.model.SchemaSet;
 
 @Mapper(componentModel = "spring")
@@ -39,4 +42,5 @@ public interface CpsRestInputMapper {
 
     AnchorDetails toAnchorDetails(final Anchor anchor);
 
+    DataspaceDetails toDataspaceDetails(final Dataspace dataspace);
 }
diff --git a/cps-rest/src/test/groovy/org/onap/cps/rest/controller/AdminRestControllerSpec.groovy b/cps-rest/src/test/groovy/org/onap/cps/rest/controller/AdminRestControllerSpec.groovy
index 41ad9ca5b2..e9612fc395 100755
--- a/cps-rest/src/test/groovy/org/onap/cps/rest/controller/AdminRestControllerSpec.groovy
+++ b/cps-rest/src/test/groovy/org/onap/cps/rest/controller/AdminRestControllerSpec.groovy
@@ -3,6 +3,7 @@
  *  Copyright (C) 2020-2021 Pantheon.tech
  *  Modifications Copyright (C) 2020-2021 Bell Canada.
  *  Modifications Copyright (C) 2021-2022 Nordix Foundation
+ *  Modifications Copyright (C) 2022 TechMahindra Ltd.
  *  ================================================================================
  *  Licensed under the Apache License, Version 2.0 (the "License");
  *  you may not use this file except in compliance with the License.
@@ -34,6 +35,7 @@ import org.onap.cps.api.CpsModuleService
 import org.onap.cps.spi.exceptions.AlreadyDefinedException
 import org.onap.cps.spi.exceptions.SchemaSetInUseException
 import org.onap.cps.spi.model.Anchor
+import org.onap.cps.spi.model.Dataspace
 import org.onap.cps.spi.model.SchemaSet
 import org.spockframework.spring.SpringBean
 import org.springframework.beans.factory.annotation.Autowired
@@ -69,6 +71,7 @@ class AdminRestControllerSpec extends Specification {
     def anchorName = 'my_anchor'
     def schemaSetName = 'my_schema_set'
     def anchor = new Anchor(name: anchorName, dataspaceName: dataspaceName, schemaSetName: schemaSetName)
+    def dataspace = new Dataspace(name: dataspaceName)
 
     def 'Create new dataspace.'() {
         given: 'an endpoint'
@@ -101,6 +104,31 @@ class AdminRestControllerSpec extends Specification {
             response.status == HttpStatus.CONFLICT.value()
     }
 
+    def 'Get a dataspace.'() {
+        given: 'service method returns a dataspace'
+            mockCpsAdminService.getDataspace(dataspaceName) >> dataspace
+        and: 'an endpoint'
+            def getDataspaceEndpoint = "$basePath/v1/admin/dataspaces/$dataspaceName"
+        when: 'get dataspace API is invoked'
+            def response = mvc.perform(get(getDataspaceEndpoint)).andReturn().response
+        then: 'the correct dataspace is returned'
+            response.status == HttpStatus.OK.value()
+            response.getContentAsString().contains(dataspaceName)
+    }
+
+    def 'Get all dataspaces.'() {
+        given: 'service method returns all dataspace'
+            mockCpsAdminService.getAllDataspaces() >> [dataspace, new Dataspace(name: "dataspace-test2")]
+        and: 'an endpoint'
+            def getAllDataspaceEndpoint = "$basePath/v1/admin/dataspaces"
+        when: 'get all dataspace API is invoked'
+            def response = mvc.perform(get(getAllDataspaceEndpoint)).andReturn().response
+        then: 'the correct dataspace is returned'
+            response.status == HttpStatus.OK.value()
+            response.getContentAsString().contains(dataspaceName)
+            response.getContentAsString().contains("dataspace-test2")
+    }
+
     def 'Create schema set from yang file.'() {
         def yangResourceMapCapture
         given: 'single yang file'
diff --git a/cps-ri/src/main/java/org/onap/cps/spi/impl/CpsAdminPersistenceServiceImpl.java b/cps-ri/src/main/java/org/onap/cps/spi/impl/CpsAdminPersistenceServiceImpl.java
index 20a39f98e3..2cebfc72c0 100755
--- a/cps-ri/src/main/java/org/onap/cps/spi/impl/CpsAdminPersistenceServiceImpl.java
+++ b/cps-ri/src/main/java/org/onap/cps/spi/impl/CpsAdminPersistenceServiceImpl.java
@@ -3,6 +3,7 @@
  * Copyright (C) 2020-2022 Nordix Foundation.
  * Modifications Copyright (C) 2020-2022 Bell Canada.
  * Modifications Copyright (C) 2021 Pantheon.tech
+ * Modifications Copyright (C) 2022 TechMahindra Ltd.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -39,6 +40,7 @@ import org.onap.cps.spi.exceptions.DataspaceInUseException;
 import org.onap.cps.spi.exceptions.DataspaceNotFoundException;
 import org.onap.cps.spi.exceptions.ModuleNamesNotFoundException;
 import org.onap.cps.spi.model.Anchor;
+import org.onap.cps.spi.model.Dataspace;
 import org.onap.cps.spi.repository.AnchorRepository;
 import org.onap.cps.spi.repository.DataspaceRepository;
 import org.onap.cps.spi.repository.SchemaSetRepository;
@@ -82,6 +84,19 @@ public class CpsAdminPersistenceServiceImpl implements CpsAdminPersistenceServic
     }
 
     @Override
+    public Dataspace getDataspace(final String dataspaceName) {
+        final DataspaceEntity dataspaceEntity =  dataspaceRepository.getByName(dataspaceName);
+        return toDataspace(dataspaceEntity);
+    }
+
+    @Override
+    public Collection<Dataspace> getAllDataspaces() {
+        final Collection<DataspaceEntity> dataspaceEntities = dataspaceRepository.findAll();
+        return dataspaceEntities.stream().map(CpsAdminPersistenceServiceImpl::toDataspace)
+                .collect(Collectors.toSet());
+    }
+
+    @Override
     public void createAnchor(final String dataspaceName, final String schemaSetName, final String anchorName) {
         final var dataspaceEntity = dataspaceRepository.getByName(dataspaceName);
         final var schemaSetEntity =
@@ -155,6 +170,10 @@ public class CpsAdminPersistenceServiceImpl implements CpsAdminPersistenceServic
             .build();
     }
 
+    private static Dataspace toDataspace(final DataspaceEntity dataspaceEntity) {
+        return Dataspace.builder().name(dataspaceEntity.getName()).build();
+    }
+
     private void validateDataspaceAndModuleNames(final String dataspaceName,
         final Collection<String> inputModuleNames) {
         final Collection<String> retrievedModuleReferences =
diff --git a/cps-ri/src/test/groovy/org/onap/cps/spi/impl/CpsAdminPersistenceServiceSpec.groovy b/cps-ri/src/test/groovy/org/onap/cps/spi/impl/CpsAdminPersistenceServiceSpec.groovy
index cdb3e6c735..99d44aac89 100644
--- a/cps-ri/src/test/groovy/org/onap/cps/spi/impl/CpsAdminPersistenceServiceSpec.groovy
+++ b/cps-ri/src/test/groovy/org/onap/cps/spi/impl/CpsAdminPersistenceServiceSpec.groovy
@@ -3,6 +3,7 @@
  *  Copyright (C) 2021-2022 Nordix Foundation
  *  Modifications Copyright (C) 2021 Pantheon.tech
  *  Modifications Copyright (C) 2022 Bell Canada
+ *  Modifications Copyright (C) 2022 TechMahindra Ltd.
  *  ================================================================================
  *  Licensed under the Apache License, Version 2.0 (the "License");
  *  you may not use this file except in compliance with the License.
@@ -30,6 +31,7 @@ import org.onap.cps.spi.exceptions.DataspaceInUseException
 import org.onap.cps.spi.exceptions.DataspaceNotFoundException
 import org.onap.cps.spi.exceptions.SchemaSetNotFoundException
 import org.onap.cps.spi.model.Anchor
+import org.onap.cps.spi.model.Dataspace
 import org.springframework.beans.factory.annotation.Autowired
 import org.springframework.test.context.jdbc.Sql
 import org.testcontainers.shaded.com.fasterxml.jackson.databind.ObjectMapper
@@ -68,6 +70,32 @@ class CpsAdminPersistenceServiceSpec extends CpsPersistenceSpecBase {
     }
 
     @Sql([CLEAR_DATA, SET_DATA])
+    def 'Get a dataspace.'() {
+        when: 'dataspace is retrieved'
+            def dataspace = objectUnderTest.getDataspace(DATASPACE_NAME)
+        then: ' the response contains expected dataspace'
+            assert dataspace.getName().equals(DATASPACE_NAME);
+    }
+
+    @Sql([CLEAR_DATA, SET_DATA])
+    def 'Get all dataspaces.'() {
+        when: 'all dataspaces are retrieved'
+            def dataspaces = objectUnderTest.getAllDataspaces()
+        then: 'the response contains expected dataspaces'
+            def expectedDataspaces = Set.of(new Dataspace(name: 'DATASPACE-001'), new Dataspace(name: 'DATASPACE-002-NO-DATA'),
+                     new Dataspace(name: 'DATASPACE-003'))
+            assert dataspaces == expectedDataspaces
+    }
+
+    @Sql([CLEAR_DATA, SET_DATA])
+    def 'Get non existing dataspace.'() {
+        when: 'attempting to retrieve a non-existing dataspace'
+            def dataspace = objectUnderTest.getDataspace('non_existing_dataspace')
+        then: 'an DataspaceNotFoundException is thrown'
+            thrown(DataspaceNotFoundException)
+    }
+
+    @Sql([CLEAR_DATA, SET_DATA])
     def 'Create and retrieve a new anchor.'() {
         when: 'a new anchor is created'
             def newAnchorName = 'my-new-anchor'
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 ab3373248a..b0e68cf8fb 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
@@ -3,6 +3,7 @@
  *  Copyright (C) 2020-2022 Nordix Foundation
  *  Modifications Copyright (C) 2020-2022 Bell Canada.
  *  Modifications Copyright (C) 2021 Pantheon.tech
+ *  Modifications Copyright (C) 2022 TechMahindra Ltd.
  *  ================================================================================
  *  Licensed under the Apache License, Version 2.0 (the "License");
  *  you may not use this file except in compliance with the License.
@@ -26,6 +27,7 @@ import java.util.Collection;
 import org.onap.cps.spi.exceptions.AlreadyDefinedException;
 import org.onap.cps.spi.exceptions.CpsException;
 import org.onap.cps.spi.model.Anchor;
+import org.onap.cps.spi.model.Dataspace;
 
 /**
  * CPS Admin Service.
@@ -48,6 +50,22 @@ public interface CpsAdminService {
     void deleteDataspace(String dataspaceName);
 
     /**
+     * Get dataspace by given dataspace name.
+     *
+     * @param dataspaceName dataspace name
+     * @return a dataspace
+     */
+    Dataspace getDataspace(String dataspaceName);
+
+    /**
+     * Get All Dataspaces.
+     *
+     *
+     * @return a collection of dataspaces
+     */
+    Collection<Dataspace> getAllDataspaces();
+
+    /**
      * Create an Anchor.
      *
      * @param dataspaceName dataspace name
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 56f424164f..ece3eb95c9 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
@@ -3,6 +3,7 @@
  *  Copyright (C) 2020-2022 Nordix Foundation
  *  Modifications Copyright (C) 2020-2022 Bell Canada.
  *  Modifications Copyright (C) 2021 Pantheon.tech
+ *  Modifications Copyright (C) 2022 TechMahindra Ltd.
  *  ================================================================================
  *  Licensed under the Apache License, Version 2.0 (the "License");
  *  you may not use this file except in compliance with the License.
@@ -30,6 +31,7 @@ import org.onap.cps.api.CpsAdminService;
 import org.onap.cps.api.CpsDataService;
 import org.onap.cps.spi.CpsAdminPersistenceService;
 import org.onap.cps.spi.model.Anchor;
+import org.onap.cps.spi.model.Dataspace;
 import org.onap.cps.spi.utils.CpsValidator;
 import org.springframework.context.annotation.Lazy;
 import org.springframework.stereotype.Component;
@@ -56,6 +58,17 @@ public class CpsAdminServiceImpl implements CpsAdminService {
     }
 
     @Override
+    public Dataspace getDataspace(final String dataspaceName) {
+        cpsValidator.validateNameCharacters(dataspaceName);
+        return cpsAdminPersistenceService.getDataspace(dataspaceName);
+    }
+
+    @Override
+    public Collection<Dataspace> getAllDataspaces() {
+        return cpsAdminPersistenceService.getAllDataspaces();
+    }
+
+    @Override
     public void createAnchor(final String dataspaceName, final String schemaSetName, final String anchorName) {
         cpsValidator.validateNameCharacters(dataspaceName, schemaSetName, anchorName);
         cpsAdminPersistenceService.createAnchor(dataspaceName, schemaSetName, anchorName);
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 db2d2b2d49..6bcb69844d 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
@@ -3,6 +3,7 @@
  *  Copyright (C) 2020-2022 Nordix Foundation.
  *  Modifications Copyright (C) 2020-2022 Bell Canada.
  *  Modifications Copyright (C) 2021 Pantheon.tech
+ *  Modifications Copyright (C) 2022 TechMahindra Ltd.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -25,6 +26,7 @@ package org.onap.cps.spi;
 import java.util.Collection;
 import org.onap.cps.spi.exceptions.AlreadyDefinedException;
 import org.onap.cps.spi.model.Anchor;
+import org.onap.cps.spi.model.Dataspace;
 
 /*
     Service for handling CPS admin data.
@@ -47,6 +49,21 @@ public interface CpsAdminPersistenceService {
     void deleteDataspace(String dataspaceName);
 
     /**
+     * Get dataspace.
+     *
+     * @param dataspaceName dataspace name
+     * @return a dataspace
+     */
+    Dataspace getDataspace(String dataspaceName);
+
+    /**
+     * Get all dataspaces.
+     *
+     * @return a collection of dataspaces.
+     */
+    Collection<Dataspace> getAllDataspaces();
+
+    /**
      * Create an Anchor.
      *
      * @param dataspaceName dataspace name
diff --git a/cps-service/src/main/java/org/onap/cps/spi/model/Dataspace.java b/cps-service/src/main/java/org/onap/cps/spi/model/Dataspace.java
new file mode 100644
index 0000000000..23c6d69063
--- /dev/null
+++ b/cps-service/src/main/java/org/onap/cps/spi/model/Dataspace.java
@@ -0,0 +1,42 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2022 TechMahindra Ltd.
+ * ================================================================================
+ * 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.spi.model;
+
+import java.io.Serializable;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.EqualsAndHashCode;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+
+@Setter
+@Getter
+@Builder
+@NoArgsConstructor
+@AllArgsConstructor
+@EqualsAndHashCode
+public class Dataspace implements Serializable {
+
+    private static final long serialVersionUID = 1464791062718603291L;
+
+    private String 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 2979c09866..e7d4e4ddb1 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
@@ -3,6 +3,7 @@
  *  Copyright (C) 2020-2022 Nordix Foundation
  *  Modifications Copyright (C) 2020-2022 Bell Canada.
  *  Modifications Copyright (C) 2021 Pantheon.tech
+ *  Modifications Copyright (C) 2022 TechMahindra Ltd.
  *  ================================================================================
  *  Licensed under the Apache License, Version 2.0 (the "License");
  *  you may not use this file except in compliance with the License.
@@ -25,6 +26,7 @@ package org.onap.cps.api.impl
 import org.onap.cps.api.CpsDataService
 import org.onap.cps.spi.CpsAdminPersistenceService
 import org.onap.cps.spi.model.Anchor
+import org.onap.cps.spi.model.Dataspace
 import org.onap.cps.spi.utils.CpsValidator
 import spock.lang.Specification
 import java.time.OffsetDateTime
@@ -89,6 +91,22 @@ class CpsAdminServiceImplSpec extends Specification {
             1 * mockCpsValidator.validateNameCharacters('someDataspace', 'someAnchor')
     }
 
+    def 'Retrieve dataspace.'() {
+        given: 'a dataspace is already created'
+            def dataspace = new Dataspace(name: "someDataspace")
+            mockCpsAdminPersistenceService.getDataspace('someDataspace') >> dataspace
+        expect: 'the dataspace provided by persistence service is returned as result'
+          assert objectUnderTest.getDataspace('someDataspace') == dataspace
+    }
+
+    def 'Retrieve all dataspaces.'() {
+        given: 'that all given dataspaces are already created'
+        def dataspaces = [new Dataspace(name: "test-dataspace1"), new Dataspace(name: "test-dataspace2")]
+            mockCpsAdminPersistenceService.getAllDataspaces() >> dataspaces
+        expect: 'the dataspace provided by persistence service is returned as result'
+           assert objectUnderTest.getAllDataspaces() == dataspaces
+    }
+
     def 'Delete anchor.'() {
         when: 'delete anchor is invoked'
             objectUnderTest.deleteAnchor('someDataspace','someAnchor')
diff --git a/docs/api/swagger/cps/openapi.yaml b/docs/api/swagger/cps/openapi.yaml
index e8f13d4df9..8ea0d7b03e 100644
--- a/docs/api/swagger/cps/openapi.yaml
+++ b/docs/api/swagger/cps/openapi.yaml
@@ -163,6 +163,124 @@ paths:
                 status: 500
                 message: Internal Server Error
                 details: Internal Server Error occurred
+  /v1/admin/dataspaces:
+    get:
+      tags:
+      - cps-admin
+      summary: Get dataspaces
+      description: "Read all dataspaces"
+      operationId: getAllDataspaces
+      responses:
+        "200":
+          description: OK
+          content:
+            application/json:
+              schema:
+                type: array
+                items:
+                  $ref: '#/components/schemas/DataspaceDetails'
+        "400":
+          description: Bad Request
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ErrorMessage'
+              example:
+                status: 400
+                message: Bad Request
+                details: The provided request is not valid
+        "401":
+          description: Unauthorized
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ErrorMessage'
+              example:
+                status: 401
+                message: Unauthorized request
+                details: This request is unauthorized
+        "403":
+          description: Forbidden
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ErrorMessage'
+              example:
+                status: 403
+                message: Request Forbidden
+                details: This request is forbidden
+        "500":
+          description: Internal Server Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ErrorMessage'
+              example:
+                status: 500
+                message: Internal Server Error
+                details: Internal Server Error occurred
+  /v1/admin/dataspaces/{dataspace-name}:
+    get:
+      tags:
+      - cps-admin
+      summary: Get a dataspace
+      description: Read an dataspace given a dataspace name
+      operationId: getDataspace
+      parameters:
+      - name: dataspace-name
+        in: path
+        description: dataspace-name
+        required: true
+        schema:
+          type: string
+          example: my-dataspace
+      responses:
+        "200":
+          description: OK
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/DataspaceDetails'
+        "400":
+          description: Bad Request
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ErrorMessage'
+              example:
+                status: 400
+                message: Bad Request
+                details: The provided request is not valid
+        "401":
+          description: Unauthorized
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ErrorMessage'
+              example:
+                status: 401
+                message: Unauthorized request
+                details: This request is unauthorized
+        "403":
+          description: Forbidden
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ErrorMessage'
+              example:
+                status: 403
+                message: Request Forbidden
+                details: This request is forbidden
+        "500":
+          description: Internal Server Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ErrorMessage'
+              example:
+                status: 500
+                message: Internal Server Error
+                details: Internal Server Error occurred
   /v1/dataspaces/{dataspace-name}/anchors:
     get:
       tags:
@@ -1565,6 +1683,13 @@ components:
         schemaSetName:
           type: string
           example: my-schema-set
+    DataspaceDetails:
+      title: Dataspace details by dataspace Name
+      type: object
+      properties:
+        name:
+          type: string
+          example: my-dataspace
     MultipartFile:
       required:
       - file
@@ -1615,4 +1740,4 @@ components:
             name: kids
 
 security:
-  - basicAuth: []
\ No newline at end of file
+  - basicAuth: []