Support pagination in query across all anchors(ep4)

Add pagination query parameters in query across all anchors API
pagination parameters (pageIndex and pageSize) are optional
default is to query all fragments
each pageSize represents number of records(number of anchors)
TotalRecords is returned in response header to find number of pages.

- If pagination option is provided in request then query number of
  anchors equal to pageSize. pageIndex is used for setting offset.

- return number of records(one anchor per record) as per pagesize
  and pageSize

Issue-ID: CPS-1605
Change-ID: I73f97f986a817d423f93a8d922dcd9647b2504bc
Signed-off-by: rajesh.kumar <rk00747546@techmahindra.com>

1 files changed, 41 insertions, 0 deletions

diff --git a/cps-service/src/test/groovy/org/onap/cps/spi/PaginationOptionSpec.groovy b/cps-service/src/test/groovy/org/onap/cps/spi/PaginationOptionSpec.groovy
new file mode 100644
index 000000000..9d74a1722
--- /dev/null
+++ b/cps-service/src/test/groovy/org/onap/cps/spi/PaginationOptionSpec.groovy
@@ -0,0 +1,41 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2022-2023 Nordix Foundation
+ *  Modifications Copyright (C) 2023 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
+
+import spock.lang.Specification
+
+class PaginationOptionSpec extends Specification {
+
+    def 'Pagination validation with: #scenario'() {
+        given: 'pagination option with pageIndex and pageSize'
+            def paginationOption = new PaginationOption(pageIndex, pageSize)
+        expect: 'validation returns expected result'
+            assert paginationOption.isValidPaginationOption() == expectedIsValidPaginationOption
+        where: 'following parameters are used'
+            scenario           | pageIndex | pageSize || expectedIsValidPaginationOption
+            'valid pagination' | 1         | 1        || true
+            'negative index'   | -1        | 1        || false
+            'negative size'    | 1         | -1       || false
+            'zero index'       | 0         | 1        || false
+            'zero size'        | 1         | 0        || false
+    }
+}