ScriptUtils properly refers to statement numbers instead of line numbers

Issue: SPR-12752
(cherry picked from commit 8f228d1)

Author: jhoeller

spring-jdbc/src/main/java/org/springframework/jdbc/datasource/init/ScriptUtils.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2014 the original author or authors.
+ * Copyright 2002-2015 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.
@@ -48,8 +48,6 @@
  */
 public abstract class ScriptUtils {
 
-	private static final Log logger = LogFactory.getLog(ScriptUtils.class);
-
 	/**
 	 * Default statement separator within SQL scripts: {@code ";"}.
 	 */
@@ -89,12 +87,8 @@ public abstract class ScriptUtils {
 	public static final String DEFAULT_BLOCK_COMMENT_END_DELIMITER = "*/";
 
 
-	/**
-	 * Prevent instantiation of this utility class.
-	 */
-	private ScriptUtils() {
-		/* no-op */
-	}
+	private static final Log logger = LogFactory.getLog(ScriptUtils.class);
+
 
 	/**
 	 * Split an SQL script into separate statements delimited by the provided
@@ -140,7 +134,7 @@ public static void splitSqlScript(String script, char separator, List<String> st
 	 */
 	public static void splitSqlScript(String script, String separator, List<String> statements) throws ScriptException {
 		splitSqlScript(null, script, separator, DEFAULT_COMMENT_PREFIX, DEFAULT_BLOCK_COMMENT_START_DELIMITER,
-			DEFAULT_BLOCK_COMMENT_END_DELIMITER, statements);
+				DEFAULT_BLOCK_COMMENT_END_DELIMITER, statements);
 	}
 
 	/**
@@ -276,6 +270,7 @@ static String readScript(EncodedResource resource) throws IOException {
 	 */
 	private static String readScript(EncodedResource resource, String commentPrefix, String separator)
 			throws IOException {
+
 		LineNumberReader lnr = new LineNumberReader(resource.getReader());
 		try {
 			return readScript(lnr, commentPrefix, separator);
@@ -302,6 +297,7 @@ private static String readScript(EncodedResource resource, String commentPrefix,
 	 */
 	public static String readScript(LineNumberReader lineNumberReader, String commentPrefix, String separator)
 			throws IOException {
+
 		String currentStatement = lineNumberReader.readLine();
 		StringBuilder scriptBuilder = new StringBuilder();
 		while (currentStatement != null) {
@@ -431,9 +427,8 @@ public static void executeSqlScript(Connection connection, EncodedResource resou
 			if (logger.isInfoEnabled()) {
 				logger.info("Executing SQL script from " + resource);
 			}
-
 			long startTime = System.currentTimeMillis();
-			List<String> statements = new LinkedList<String>();
+
 			String script;
 			try {
 				script = readScript(resource, commentPrefix, separator);
@@ -449,13 +444,15 @@ public static void executeSqlScript(Connection connection, EncodedResource resou
 				separator = FALLBACK_STATEMENT_SEPARATOR;
 			}
 
+			List<String> statements = new LinkedList<String>();
 			splitSqlScript(resource, script, separator, commentPrefix, blockCommentStartDelimiter,
-				blockCommentEndDelimiter, statements);
-			int lineNumber = 0;
+					blockCommentEndDelimiter, statements);
+
+			int stmtNumber = 0;
 			Statement stmt = connection.createStatement();
 			try {
 				for (String statement : statements) {
-					lineNumber++;
+					stmtNumber++;
 					try {
 						stmt.execute(statement);
 						int rowsAffected = stmt.getUpdateCount();
@@ -467,12 +464,12 @@ public static void executeSqlScript(Connection connection, EncodedResource resou
 						boolean dropStatement = StringUtils.startsWithIgnoreCase(statement.trim(), "drop");
 						if (continueOnError || (dropStatement && ignoreFailedDrops)) {
 							if (logger.isDebugEnabled()) {
-								logger.debug("Failed to execute SQL script statement at line " + lineNumber
-										+ " of resource " + resource + ": " + statement, ex);
+								logger.debug("Failed to execute SQL script statement #" + stmtNumber +
+										" of resource " + resource + ": " + statement, ex);
 							}
 						}
 						else {
-							throw new ScriptStatementFailedException(statement, lineNumber, resource, ex);
+							throw new ScriptStatementFailedException(statement, stmtNumber, resource, ex);
 						}
 					}
 				}
@@ -495,7 +492,6 @@ public static void executeSqlScript(Connection connection, EncodedResource resou
 			if (ex instanceof ScriptException) {
 				throw (ScriptException) ex;
 			}
-
 			throw new UncategorizedScriptException(
 				"Failed to execute database script from resource [" + resource + "]", ex);
 		}