added tests for custom SQLException translation, polished (SPR-4899)

Author: Thomas Risberg

org.springframework.jdbc/src/main/java/org/springframework/jdbc/support/SQLErrorCodes.java

@@ -17,7 +17,6 @@
 package org.springframework.jdbc.support;
 
 import org.springframework.util.StringUtils;
-import org.springframework.util.Assert;
 import org.springframework.dao.InvalidDataAccessResourceUsageException;
 
 /**

org.springframework.jdbc/src/test/java/org/springframework/jdbc/support/CustomSqlExceptionTranslator.java

@@ -0,0 +1,36 @@
+/*
+ * Copyright 2002-2009 the original author or authors.
+ *
+ * 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.
+ */
+
+package org.springframework.jdbc.support;
+
+import org.springframework.dao.DataAccessException;
+import org.springframework.dao.TransientDataAccessResourceException;
+
+import java.sql.SQLException;
+
+/**
+ * Custom SQLException translation for testing.
+ *
+ * @author Thomas Risberg
+ */
+public class CustomSqlExceptionTranslator implements SQLExceptionTranslator {
+	public DataAccessException translate(String task, String sql, SQLException ex) {
+		if (ex.getErrorCode() == 2) {
+			return new TransientDataAccessResourceException("Custom", ex);
+		}
+		return null;
+	}
+}

org.springframework.jdbc/src/test/java/org/springframework/jdbc/support/SQLExceptionCustomTranslatorTests.java

@@ -0,0 +1,64 @@
+/*
+ * Copyright 2002-2008 the original author or authors.
+ *
+ * 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.
+ */
+
+package org.springframework.jdbc.support;
+
+import org.springframework.dao.DataAccessException;
+import org.springframework.dao.TransientDataAccessResourceException;
+import org.springframework.jdbc.BadSqlGrammarException;
+
+import java.sql.SQLException;
+
+import junit.framework.TestCase;
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
+import org.junit.Test;
+
+/**
+ * Class to test custom SQLException translation.
+ *
+ * @author Thomas Risberg
+ */
+@RunWith(JUnit4.class)
+public class SQLExceptionCustomTranslatorTests extends TestCase {
+
+	private static SQLErrorCodes ERROR_CODES = new SQLErrorCodes();
+
+	static {
+		ERROR_CODES.setBadSqlGrammarCodes(new String[] { "1" });
+		ERROR_CODES.setDataAccessResourceFailureCodes(new String[] { "2" });
+		ERROR_CODES.setCustomSqlExceptionTranslatorClass(CustomSqlExceptionTranslator.class);
+	}
+
+
+	@Test
+	public void testCustomErrorCodeTranslation() {
+
+		SQLExceptionTranslator sext = new SQLErrorCodeSQLExceptionTranslator(ERROR_CODES);
+
+		SQLException dataIntegrityViolationEx = SQLExceptionSubclassFactory.newSQLDataException("", "", 1);
+		DataAccessException daeex = sext.translate("task", "SQL", dataIntegrityViolationEx);
+		assertEquals(dataIntegrityViolationEx, daeex.getCause());
+		assertTrue(daeex instanceof BadSqlGrammarException);
+
+		SQLException dataAccessResourceEx = SQLExceptionSubclassFactory.newSQLDataException("", "", 2);
+		DataAccessException darex = sext.translate("task", "SQL", dataAccessResourceEx);
+		assertEquals(dataIntegrityViolationEx, daeex.getCause());
+		assertTrue(darex instanceof TransientDataAccessResourceException);
+
+	}
+
+}