Apostrophe handling in CpsPathParser

Apostrophe is not currently handled correctly, and having apostrophe in
the xpath will lead to various errors.
For example, normalizing this xpath works:
  /path[@name="I'm quoted"] -> /path[@name='I\'m quoted']
However the resulting xpath will throw a PathParsingException if parsed!
(Thus path normalization is not idempotent.)

- Use '' for escaping apostrophe in single quoted leaf value,
  to comply with XPath standard (and use "" for escaping in ").
- Use Liquibase to make existing data comply with new rules.
- Leaf values in data leaves are now unescaped, e.g. "I'm quoted"
- Quoting is now consistent for leaf/text/contains conditions.

Issue-ID: CPS-1769
Signed-off-by: danielhanrahan <daniel.hanrahan@est.tech>
Change-Id: Iafc287f738254d7f99706c6bc548091c0ecd5aa0

1 files changed, 19 insertions, 0 deletions

diff --git a/cps-ri/src/main/resources/changelog/db/changes/21-escape-quotes-in-xpath-rollback.sql b/cps-ri/src/main/resources/changelog/db/changes/21-escape-quotes-in-xpath-rollback.sql
new file mode 100644
index 0000000000..0fd1633a54
--- /dev/null
+++ b/cps-ri/src/main/resources/changelog/db/changes/21-escape-quotes-in-xpath-rollback.sql
@@ -0,0 +1,19 @@
+/*
+   ============LICENSE_START=======================================================
+    Copyright (C) 2023 Nordix Foundation.
+   ================================================================================
+   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=========================================================
+*/
+
+-- replace '' with \' and " with ""
+UPDATE fragment SET xpath = replace(replace(xpath, $$''$$, $$\'$$), '"', '""');
\ No newline at end of file