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The following commit(s) were added to refs/heads/develop by this push:
     new f5951f1a7b FINERACT-2461: Refactor EmailReadPlatformServiceImpl to use 
Prepared Statements (#5417)
f5951f1a7b is described below

commit f5951f1a7b98838599ba90065d0e5e91fb92bca9
Author: Saifulhuq <[email protected]>
AuthorDate: Fri Feb 6 15:09:40 2026 +0530

    FINERACT-2461: Refactor EmailReadPlatformServiceImpl to use Prepared 
Statements (#5417)
    
    * FINERACT-2461: Refactor EmailReadPlatformServiceImpl to use Prepared 
Statements
    * FINERACT-2461: Add unit tests for EmailReadPlatformServiceImpl
---
 .../service/EmailReadPlatformServiceImpl.java      |  36 +++--
 .../service/EmailReadPlatformServiceImplTest.java  | 157 +++++++++++++++++++++
 2 files changed, 174 insertions(+), 19 deletions(-)

diff --git 
a/fineract-provider/src/main/java/org/apache/fineract/infrastructure/campaigns/email/service/EmailReadPlatformServiceImpl.java
 
b/fineract-provider/src/main/java/org/apache/fineract/infrastructure/campaigns/email/service/EmailReadPlatformServiceImpl.java
index f17fdf8ce7..955ca561f6 100644
--- 
a/fineract-provider/src/main/java/org/apache/fineract/infrastructure/campaigns/email/service/EmailReadPlatformServiceImpl.java
+++ 
b/fineract-provider/src/main/java/org/apache/fineract/infrastructure/campaigns/email/service/EmailReadPlatformServiceImpl.java
@@ -21,6 +21,7 @@ package 
org.apache.fineract.infrastructure.campaigns.email.service;
 import java.sql.ResultSet;
 import java.sql.SQLException;
 import java.time.LocalDate;
+import java.util.ArrayList;
 import java.util.Collection;
 import java.util.List;
 import lombok.RequiredArgsConstructor;
@@ -105,9 +106,7 @@ public class EmailReadPlatformServiceImpl implements 
EmailReadPlatformService {
 
     @Override
     public Collection<EmailData> retrieveAll() {
-
         final String sql = "select " + this.emailRowMapper.schema();
-
         return this.jdbcTemplate.query(sql, this.emailRowMapper); // NOSONAR
     }
 
@@ -115,7 +114,6 @@ public class EmailReadPlatformServiceImpl implements 
EmailReadPlatformService {
     public EmailData retrieveOne(final Long resourceId) {
         try {
             final String sql = "select " + this.emailRowMapper.schema() + " 
where emo.id = ?";
-
             return this.jdbcTemplate.queryForObject(sql, this.emailRowMapper, 
new Object[] { resourceId }); // NOSONAR
         } catch (final EmptyResultDataAccessException e) {
             throw new EmailNotFoundException(resourceId, e);
@@ -124,18 +122,12 @@ public class EmailReadPlatformServiceImpl implements 
EmailReadPlatformService {
 
     @Override
     public Collection<EmailData> retrieveAllPending(final SearchParameters 
searchParameters) {
-        final String sqlPlusLimit = (searchParameters.getLimit() > 0) ? " " + 
sqlGenerator.limit(searchParameters.getLimit()) : "";
-        final String sql = "select " + this.emailRowMapper.schema() + " where 
emo.status_enum =? " + sqlPlusLimit;
-
-        return this.jdbcTemplate.query(sql, this.emailRowMapper, 
EmailMessageStatusType.PENDING.getValue()); // NOSONAR
+        return 
retrieveEmailByStatus(EmailMessageStatusType.PENDING.getValue(), 
searchParameters.getLimit());
     }
 
     @Override
     public Collection<EmailData> retrieveAllSent(final SearchParameters 
searchParameters) {
-        final String sqlPlusLimit = (searchParameters.getLimit() > 0) ? " " + 
sqlGenerator.limit(searchParameters.getLimit()) : "";
-        final String sql = "select " + this.emailRowMapper.schema() + " where 
emo.status_enum = ?" + sqlPlusLimit;
-
-        return this.jdbcTemplate.query(sql, this.emailRowMapper, 
EmailMessageStatusType.SENT.getValue()); // NOSONAR
+        return retrieveEmailByStatus(EmailMessageStatusType.SENT.getValue(), 
searchParameters.getLimit());
     }
 
     @Override
@@ -148,18 +140,12 @@ public class EmailReadPlatformServiceImpl implements 
EmailReadPlatformService {
 
     @Override
     public Collection<EmailData> retrieveAllDelivered(final Integer limit) {
-        final String sqlPlusLimit = (limit > 0) ? " " + 
sqlGenerator.limit(limit) : "";
-        final String sql = "select " + this.emailRowMapper.schema() + " where 
emo.status_enum = ?" + sqlPlusLimit;
-
-        return this.jdbcTemplate.query(sql, this.emailRowMapper, 
EmailMessageStatusType.DELIVERED.getValue()); // NOSONAR
+        return 
retrieveEmailByStatus(EmailMessageStatusType.DELIVERED.getValue(), limit);
     }
 
     @Override
     public Collection<EmailData> retrieveAllFailed(final SearchParameters 
searchParameters) {
-        final String sqlPlusLimit = (searchParameters.getLimit() > 0) ? " " + 
sqlGenerator.limit(searchParameters.getLimit()) : "";
-        final String sql = "select " + this.emailRowMapper.schema() + " where 
emo.status_enum = ?" + sqlPlusLimit;
-
-        return this.jdbcTemplate.query(sql, this.emailRowMapper, 
EmailMessageStatusType.FAILED.getValue()); // NOSONAR
+        return retrieveEmailByStatus(EmailMessageStatusType.FAILED.getValue(), 
searchParameters.getLimit());
     }
 
     @Override
@@ -185,4 +171,16 @@ public class EmailReadPlatformServiceImpl implements 
EmailReadPlatformService {
         return this.paginationHelper.fetchPage(this.jdbcTemplate, 
sqlBuilder.toString(),
                 new Object[] { status, fromDateString, toDateString }, 
this.emailRowMapper);
     }
+
+    private Collection<EmailData> retrieveEmailByStatus(final Integer status, 
final Integer limit) {
+        StringBuilder sql = new StringBuilder("select " + 
this.emailRowMapper.schema() + " where emo.status_enum = ?");
+        List<Object> args = new ArrayList<>();
+        args.add(status);
+
+        if (limit != null && limit > 0) {
+            sql.append(" ").append(sqlGenerator.limit(limit));
+        }
+
+        return this.jdbcTemplate.query(sql.toString(), this.emailRowMapper, 
args.toArray());
+    }
 }
diff --git 
a/fineract-provider/src/test/java/org/apache/fineract/infrastructure/campaigns/email/service/EmailReadPlatformServiceImplTest.java
 
b/fineract-provider/src/test/java/org/apache/fineract/infrastructure/campaigns/email/service/EmailReadPlatformServiceImplTest.java
new file mode 100644
index 0000000000..049c9d67db
--- /dev/null
+++ 
b/fineract-provider/src/test/java/org/apache/fineract/infrastructure/campaigns/email/service/EmailReadPlatformServiceImplTest.java
@@ -0,0 +1,157 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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.
+ */
+package org.apache.fineract.infrastructure.campaigns.email.service;
+
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+import org.apache.fineract.infrastructure.core.service.PaginationHelper;
+import org.apache.fineract.infrastructure.core.service.SearchParameters;
+import 
org.apache.fineract.infrastructure.core.service.database.DatabaseSpecificSQLGenerator;
+import 
org.apache.fineract.infrastructure.core.service.database.DatabaseTypeResolver;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.ArgumentCaptor;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
+import org.springframework.jdbc.core.JdbcTemplate;
+import org.springframework.jdbc.core.RowMapper;
+
+@ExtendWith(MockitoExtension.class)
+@SuppressWarnings("unchecked")
+class EmailReadPlatformServiceImplTest {
+
+    @Mock
+    private JdbcTemplate jdbcTemplate;
+
+    @Mock
+    private DatabaseTypeResolver databaseTypeResolver; // Mock ONLY the 
resolver
+
+    @Mock
+    private PaginationHelper paginationHelper;
+
+    private EmailReadPlatformServiceImpl emailReadPlatformService;
+
+    @BeforeEach
+    void setUp() {
+        // Use the REAL DatabaseSpecificSQLGenerator, not a mock
+        // Pass null for RoutingDataSource as it's not needed for limit()
+        DatabaseSpecificSQLGenerator sqlGenerator = new 
DatabaseSpecificSQLGenerator(databaseTypeResolver, null);
+        emailReadPlatformService = new 
EmailReadPlatformServiceImpl(jdbcTemplate, sqlGenerator, paginationHelper);
+    }
+
+    @Test
+    void testRetrieveAllPendingWithMySQL() {
+        // Given
+        SearchParameters searchParameters = 
SearchParameters.builder().limit(10).build();
+
+        // Simulate MySQL environment
+        when(databaseTypeResolver.isMySQL()).thenReturn(true);
+        // isPostgreSQL not checked if isMySQL is true
+
+        // When
+        emailReadPlatformService.retrieveAllPending(searchParameters);
+
+        // Then
+        ArgumentCaptor<String> sqlCaptor = 
ArgumentCaptor.forClass(String.class);
+        verify(jdbcTemplate).query(sqlCaptor.capture(), any(RowMapper.class), 
any(Object[].class));
+
+        String executedSql = sqlCaptor.getValue();
+        // Verify MySQL specific syntax (LIMIT 10)
+        assertTrue(executedSql.contains("LIMIT 0,10"), "SQL should contain 
MySQL LIMIT clause: " + executedSql);
+    }
+
+    @Test
+    void testRetrieveAllSentWithPostgres() {
+        // Given
+        SearchParameters searchParameters = 
SearchParameters.builder().limit(5).build();
+
+        // Simulate Postgres environment
+        when(databaseTypeResolver.isMySQL()).thenReturn(false);
+        when(databaseTypeResolver.isPostgreSQL()).thenReturn(true);
+
+        // When
+        emailReadPlatformService.retrieveAllSent(searchParameters);
+
+        // Then
+        ArgumentCaptor<String> sqlCaptor = 
ArgumentCaptor.forClass(String.class);
+        verify(jdbcTemplate).query(sqlCaptor.capture(), any(RowMapper.class), 
any(Object[].class));
+
+        String executedSql = sqlCaptor.getValue();
+        // Verify Postgres specific syntax (LIMIT 5)
+        assertTrue(executedSql.contains("LIMIT 5 OFFSET 0"), "SQL should 
contain Postgres LIMIT clause: " + executedSql);
+    }
+
+    @Test
+    void testRetrieveAllPendingWithoutLimit() {
+        // Given - limit 0 means unlimited (getLimit() returns null)
+        SearchParameters searchParameters = 
SearchParameters.builder().limit(0).build();
+
+        // When
+        emailReadPlatformService.retrieveAllPending(searchParameters);
+
+        // Then
+        ArgumentCaptor<String> sqlCaptor = 
ArgumentCaptor.forClass(String.class);
+        verify(jdbcTemplate).query(sqlCaptor.capture(), any(RowMapper.class), 
any(Object[].class));
+
+        String executedSql = sqlCaptor.getValue();
+        // Verify NO LIMIT clause
+        assertTrue(!executedSql.contains("LIMIT"), "SQL should NOT contain 
LIMIT when limit is null");
+    }
+
+    @Test
+    void testRetrieveWithLimitOne() {
+        // Given
+        SearchParameters searchParameters = 
SearchParameters.builder().limit(1).build();
+
+        // Simulate MySQL environment
+        when(databaseTypeResolver.isMySQL()).thenReturn(true);
+
+        // When
+        emailReadPlatformService.retrieveAllPending(searchParameters);
+
+        // Then
+        ArgumentCaptor<String> sqlCaptor = 
ArgumentCaptor.forClass(String.class);
+        verify(jdbcTemplate).query(sqlCaptor.capture(), any(RowMapper.class), 
any(Object[].class));
+
+        String executedSql = sqlCaptor.getValue();
+        // Verify MySQL specific syntax (LIMIT 1)
+        assertTrue(executedSql.contains("LIMIT 0,1"), "SQL should contain 
MySQL LIMIT 1 clause");
+    }
+
+    @Test
+    void testRetrieveWithNegativeLimit() {
+        // Given
+        SearchParameters searchParameters = 
SearchParameters.builder().limit(-5).build();
+
+        // When
+        emailReadPlatformService.retrieveAllPending(searchParameters);
+
+        // Then
+        ArgumentCaptor<String> sqlCaptor = 
ArgumentCaptor.forClass(String.class);
+        verify(jdbcTemplate).query(sqlCaptor.capture(), any(RowMapper.class), 
any(Object[].class));
+
+        String executedSql = sqlCaptor.getValue();
+        // Verify NO LIMIT clause for negative values (as they are invalid for 
SQL limit)
+        assertTrue(!executedSql.contains("LIMIT"), "SQL should NOT contain 
LIMIT when limit is negative");
+    }
+}

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