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/*
* Copyright 2002-2014 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.testcontainers.ext;
import org.apache.commons.io.IOUtils;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.testcontainers.delegate.DatabaseDelegate;
import java.io.IOException;
import java.net.URL;
import java.nio.charset.StandardCharsets;
import java.util.LinkedList;
import java.util.List;
import javax.script.ScriptException;
/**
* This is a modified version of the Spring-JDBC ScriptUtils class, adapted to reduce
* dependencies and slightly alter the API.
*
* Generic utility methods for working with SQL scripts. Mainly for internal use
* within the framework.
*/
public abstract class ScriptUtils {
private static final Logger LOGGER = LoggerFactory.getLogger(ScriptUtils.class);
/**
* Default statement separator within SQL scripts.
*/
public static final String DEFAULT_STATEMENT_SEPARATOR = ";";
/**
* Fallback statement separator within SQL scripts.
* Used if neither a custom defined separator nor the
* {@link #DEFAULT_STATEMENT_SEPARATOR} is present in a given script.
*/
public static final String FALLBACK_STATEMENT_SEPARATOR = "\n";
/**
* Default prefix for line comments within SQL scripts.
*/
public static final String DEFAULT_COMMENT_PREFIX = "--";
/**
* Default start delimiter for block comments within SQL scripts.
*/
public static final String DEFAULT_BLOCK_COMMENT_START_DELIMITER = "/*";
/**
* Default end delimiter for block comments within SQL scripts.
*/
public static final String DEFAULT_BLOCK_COMMENT_END_DELIMITER = "*/";
/**
* Prevent instantiation of this utility class.
*/
private ScriptUtils() {
/* no-op */
}
/**
* Split an SQL script into separate statements delimited by the provided
* separator string. Each individual statement will be added to the provided
* {@code List}.
*
Within the script, the provided {@code commentPrefix} will be honored:
* any text beginning with the comment prefix and extending to the end of the
* line will be omitted from the output. Similarly, the provided
* {@code blockCommentStartDelimiter} and {@code blockCommentEndDelimiter}
* delimiters will be honored: any text enclosed in a block comment will be
* omitted from the output. In addition, multiple adjacent whitespace characters
* will be collapsed into a single space.
* @param resource the resource from which the script was read
* @param script the SQL script; never {@code null} or empty
* @param separator text separating each statement — typically a ';' or
* newline character; never {@code null}
* @param commentPrefix the prefix that identifies SQL line comments —
* typically "--"; never {@code null} or empty
* @param blockCommentStartDelimiter the start block comment delimiter;
* never {@code null} or empty
* @param blockCommentEndDelimiter the end block comment delimiter;
* never {@code null} or empty
* @param statements the list that will contain the individual statements
*/
public static void splitSqlScript(
String resource,
String script,
String separator,
String commentPrefix,
String blockCommentStartDelimiter,
String blockCommentEndDelimiter,
List statements
) {
checkArgument(StringUtils.isNotEmpty(script), "script must not be null or empty");
checkArgument(separator != null, "separator must not be null");
checkArgument(StringUtils.isNotEmpty(commentPrefix), "commentPrefix must not be null or empty");
checkArgument(
StringUtils.isNotEmpty(blockCommentStartDelimiter),
"blockCommentStartDelimiter must not be null or empty"
);
checkArgument(
StringUtils.isNotEmpty(blockCommentEndDelimiter),
"blockCommentEndDelimiter must not be null or empty"
);
new ScriptSplitter(
new ScriptScanner(
resource,
script,
separator,
commentPrefix,
blockCommentStartDelimiter,
blockCommentEndDelimiter
),
statements
)
.split();
}
private static void checkArgument(boolean expression, String errorMessage) {
if (!expression) {
throw new IllegalArgumentException(errorMessage);
}
}
/**
* Does the provided SQL script contain the specified delimiter?
* @param script the SQL script
* @param delim String delimiting each statement - typically a ';' character
*/
public static boolean containsSqlScriptDelimiters(String script, String delim) {
return containsSqlScriptDelimiters(
"",
script,
DEFAULT_COMMENT_PREFIX,
delim,
DEFAULT_BLOCK_COMMENT_START_DELIMITER,
DEFAULT_BLOCK_COMMENT_END_DELIMITER
);
}
/**
* Does the provided SQL script contain the specified delimiter?
*
* @param script the SQL script
* @param delim String delimiting each statement - typically a ';' character
* @param commentPrefix the prefix that identifies comments in the SQL script,
* typically "--"
* @param blockCommentStartDelimiter block comment start delimiter
* @param blockCommentEndDelimiter block comment end delimiter
*/
public static boolean containsSqlScriptDelimiters(
String scriptPath,
String script,
String commentPrefix,
String delim,
String blockCommentStartDelimiter,
String blockCommentEndDelimiter
) {
ScriptScanner scanner = new ScriptScanner(
scriptPath,
script,
delim,
commentPrefix,
blockCommentStartDelimiter,
blockCommentEndDelimiter
);
ScriptScanner.Lexem l;
while ((l = scanner.next()) != ScriptScanner.Lexem.EOF) {
if (ScriptScanner.Lexem.SEPARATOR.equals(l)) {
return true;
}
}
return false;
}
/**
* Load script from classpath and apply it to the given database
*
* @param databaseDelegate database delegate for script execution
* @param initScriptPath the resource to load the init script from
*/
public static void runInitScript(DatabaseDelegate databaseDelegate, String initScriptPath) {
try {
URL resource = Thread.currentThread().getContextClassLoader().getResource(initScriptPath);
if (resource == null) {
resource = ScriptUtils.class.getClassLoader().getResource(initScriptPath);
if (resource == null) {
LOGGER.warn("Could not load classpath init script: {}", initScriptPath);
throw new ScriptLoadException(
"Could not load classpath init script: " + initScriptPath + ". Resource not found."
);
}
}
String scripts = IOUtils.toString(resource, StandardCharsets.UTF_8);
executeDatabaseScript(databaseDelegate, initScriptPath, scripts);
} catch (IOException e) {
LOGGER.warn("Could not load classpath init script: {}", initScriptPath);
throw new ScriptLoadException("Could not load classpath init script: " + initScriptPath, e);
} catch (ScriptException e) {
LOGGER.error("Error while executing init script: {}", initScriptPath, e);
throw new UncategorizedScriptException("Error while executing init script: " + initScriptPath, e);
}
}
public static void executeDatabaseScript(DatabaseDelegate databaseDelegate, String scriptPath, String script)
throws ScriptException {
executeDatabaseScript(
databaseDelegate,
scriptPath,
script,
false,
false,
DEFAULT_COMMENT_PREFIX,
DEFAULT_STATEMENT_SEPARATOR,
DEFAULT_BLOCK_COMMENT_START_DELIMITER,
DEFAULT_BLOCK_COMMENT_END_DELIMITER
);
}
/**
* Execute the given database script.
* Statement separators and comments will be removed before executing
* individual statements within the supplied script.
*
Do not use this method to execute DDL if you expect rollback.
* @param databaseDelegate database delegate for script execution
* @param scriptPath the resource (potentially associated with a specific encoding)
* to load the SQL script from
* @param script the raw script content
*@param continueOnError whether or not to continue without throwing an exception
* in the event of an error
* @param ignoreFailedDrops whether or not to continue in the event of specifically
* an error on a {@code DROP} statement
* @param commentPrefix the prefix that identifies comments in the SQL script —
* typically "--"
* @param separator the script statement separator; defaults to
* {@value #DEFAULT_STATEMENT_SEPARATOR} if not specified and falls back to
* {@value #FALLBACK_STATEMENT_SEPARATOR} as a last resort
* @param blockCommentStartDelimiter the start block comment delimiter; never
* {@code null} or empty
* @param blockCommentEndDelimiter the end block comment delimiter; never
* {@code null} or empty @throws ScriptException if an error occurred while executing the SQL script
*/
public static void executeDatabaseScript(
DatabaseDelegate databaseDelegate,
String scriptPath,
String script,
boolean continueOnError,
boolean ignoreFailedDrops,
String commentPrefix,
String separator,
String blockCommentStartDelimiter,
String blockCommentEndDelimiter
) throws ScriptException {
try {
if (LOGGER.isInfoEnabled()) {
LOGGER.info("Executing database script from " + scriptPath);
}
long startTime = System.currentTimeMillis();
List statements = new LinkedList<>();
if (separator == null) {
separator = DEFAULT_STATEMENT_SEPARATOR;
}
if (
!containsSqlScriptDelimiters(
scriptPath,
script,
commentPrefix,
separator,
blockCommentStartDelimiter,
blockCommentEndDelimiter
)
) {
separator = FALLBACK_STATEMENT_SEPARATOR;
}
splitSqlScript(
scriptPath,
script,
separator,
commentPrefix,
blockCommentStartDelimiter,
blockCommentEndDelimiter,
statements
);
try (DatabaseDelegate closeableDelegate = databaseDelegate) {
closeableDelegate.execute(statements, scriptPath, continueOnError, ignoreFailedDrops);
}
long elapsedTime = System.currentTimeMillis() - startTime;
if (LOGGER.isInfoEnabled()) {
LOGGER.info("Executed database script from " + scriptPath + " in " + elapsedTime + " ms.");
}
} catch (Exception ex) {
if (ex instanceof ScriptException) {
throw (ScriptException) ex;
}
throw new UncategorizedScriptException(
"Failed to execute database script from resource [" + script + "]",
ex
);
}
}
public static class ScriptLoadException extends RuntimeException {
public ScriptLoadException(String message) {
super(message);
}
public ScriptLoadException(String message, Throwable cause) {
super(message, cause);
}
}
public static class ScriptParseException extends RuntimeException {
public ScriptParseException(String format, String scriptPath) {
super(String.format(format, scriptPath));
}
}
public static class ScriptStatementFailedException extends RuntimeException {
public ScriptStatementFailedException(String statement, int lineNumber, String scriptPath) {
this(statement, lineNumber, scriptPath, null);
}
public ScriptStatementFailedException(String statement, int lineNumber, String scriptPath, Exception ex) {
super(String.format("Script execution failed (%s:%d): %s", scriptPath, lineNumber, statement), ex);
}
}
public static class UncategorizedScriptException extends RuntimeException {
public UncategorizedScriptException(String s, Exception ex) {
super(s, ex);
}
}
}