legacy/src/main/java/org/opensearch/sql/legacy/plugin/RestSQLQueryAction.java
plugin/src/main/java/org/opensearch/sql/plugin/rest/RestPPLQueryAction.java

legacy/src/main/java/org/opensearch/sql/legacy/request/SqlRequestParam.java
plugin/src/main/java/org/opensearch/sql/plugin/request/PPLQueryRequestFactory.java

legacy/src/main/java/org/opensearch/sql/legacy/plugin/OpenSearchSQLPluginConfig.java
plugin/src/main/java/org/opensearch/sql/plugin/rest/OpenSearchPluginConfig.java

legacy/src/main/java/org/opensearch/sql/legacy/plugin/RestSqlAction.java
plugin/src/main/java/org/opensearch/sql/plugin/rest/RestPPLStatsAction.java

legacy/src/main/java/org/opensearch/sql/legacy/plugin/RestSqlStatsAction.java
plugin/src/main/java/org/opensearch/sql/plugin/rest/RestPPLStatsAction.java

legacy/src/main/java/org/opensearch/sql/legacy/plugin/RestSqlAction.java
plugin/src/main/java/org/opensearch/sql/plugin/rest/RestQuerySettingsAction.java

legacy/src/main/java/org/opensearch/sql/legacy/plugin/RestSqlStatsAction.java
plugin/src/main/java/org/opensearch/sql/plugin/rest/RestQuerySettingsAction.java