/*
* #%L
* P6Spy
* %%
* Copyright (C) 2013 P6Spy
* %%
* 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.
* #L%
*/
package com.p6spy.engine.spy.appender;
import com.p6spy.engine.logging.Category;
import com.p6spy.engine.spy.P6SpyOptions;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.PrintStream;
/**
* SQL batch file logger Private: (?) No Appender that writes a trace of JDBC activity into an SQL
* batch file that can be later "replayed" using a generic SQL client.
* <p>
* modify the spy.properties file to make p6spy use this appender by setting
* appender=com.p6spy.engine.spy.appender.BatchFileLogger.
* </p>
* <p>Here's how it works for me: logfile = spy.sql The appender writes the text of SQL
* statements as well as commit and rollback commands to the specified file, each on a new line. For
* prepared statements the effective text resulting from substitution of parameter signs with their
* values is written. Other event categories are logged as SQL comments ("-- " followed by the
* category name). Exceptions and text are silently discarded. All SQL statements except the last
* one will have a delimiter character ';' appended to them. This batch format works well with
* WinSQL. The format is hardcoded, so if you want to make it configurable you'll have to patch my
* patch or write your own :)
*/
public class BatchFileLogger extends FileLogger {
public static final char BATCH_SEPARATOR = ';';
private boolean endOfStatement = true;
@Override
public void logException(Exception e) {
}
@Override
public void logSQL(int connectionId, String now, long elapsed, Category category, String prepared, String sql) {
if (endOfStatement) {
getStream().println(BATCH_SEPARATOR);
}
if (category.equals("statement")) {
String actual = null == sql || 0 == sql.length() ? prepared : sql;
getStream().print(actual);
endOfStatement = true;
} else if (Category.COMMIT.equals(category) || Category.ROLLBACK.equals(category)) {
getStream().print(category);
endOfStatement = true;
} else {
getStream().println("-- " + category);
endOfStatement = false;
}
getStream().flush();
}
@Override
public void logText(String text) {
}
}