/*
* Copyright 2004-2011 H2 Group. Multiple-Licensed under the H2 License,
* Version 1.0, and under the Eclipse Public License, Version 1.0
* (http://h2database.com/html/license.html).
*/
/*
* 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.h2.test.trace;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.LineNumberReader;
import java.util.HashMap;
import org.h2.util.IOUtils;
import org.h2.util.New;
/**
* This tool can re-run Java style log files. There is no size limit.
*/
public class Player {
// TODO support InputStream;
// TODO support Reader;
// TODO support int[];
// TODO support Blob and Clob;
// TODO support Calendar
// TODO support Object
// TODO support Object[]
// TODO support URL
// TODO support Array
// TODO support Ref
// TODO support SQLInput, SQLOutput
// TODO support Properties
// TODO support Map
// TODO support SQLXML
private static final String[] IMPORTED_PACKAGES = { "", "java.lang.", "java.sql.", "javax.sql." };
private boolean trace;
private HashMap<String, Object> objects = New.hashMap();
/**
* Execute a trace file using the command line. The log file name to execute
* (replayed) must be specified as the last parameter. The following
* optional command line parameters are supported:
* <ul>
* <li><code>-log</code> to enable logging the executed statement to
* System.out
* </ul>
*
* @param args the arguments of the application
*/
public static void main(String... args) throws IOException {
new Player().run(args);
}
/**
* Execute a trace file.
*
* @param fileName the file name
* @param trace print debug information
*/
public static void execute(String fileName, boolean trace) throws IOException {
Player player = new Player();
player.trace = trace;
player.runFile(fileName);
}
private void run(String... args) throws IOException {
String fileName = "test.log.db";
try {
fileName = args[args.length - 1];
for (int i = 0; i < args.length - 1; i++) {
if ("-trace".equals(args[i])) {
trace = true;
} else {
throw new RuntimeException("Unknown setting: " + args[i]);
}
}
} catch (Exception e) {
e.printStackTrace();
System.out.println("Usage: java " + getClass().getName()
+ " [-trace] <fileName>");
return;
}
runFile(fileName);
}
private void runFile(String fileName) throws IOException {
LineNumberReader reader = new LineNumberReader(new BufferedReader(
new InputStreamReader(IOUtils.openFileInputStream(fileName))));
while (true) {
String line = reader.readLine();
if (line == null) {
break;
}
runLine(line.trim());
}
reader.close();
}
/**
* Write trace information if trace is enabled.
*
* @param s the message to write
*/
void trace(String s) {
if (trace) {
System.out.println(s);
}
}
private void runLine(String line) {
if (!line.startsWith("/**/")) {
return;
}
line = line.substring("/**/".length()) + ";";
Statement s = Parser.parseStatement(this, line);
trace("> " + s.toString());
try {
s.execute();
} catch (Exception e) {
e.printStackTrace();
trace("error: " + e.toString());
}
}
/**
* Get the class for the given class name.
* Only a limited set of classes is supported.
*
* @param className the class name
* @return the class
*/
static Class<?> getClass(String className) {
for (String s : IMPORTED_PACKAGES) {
try {
return Class.forName(s + className);
} catch (ClassNotFoundException e) {
// ignore
}
}
throw new RuntimeException("Class not found: " + className);
}
/**
* Assign an object to a variable.
*
* @param variableName the variable name
* @param obj the object
*/
void assign(String variableName, Object obj) {
objects.put(variableName, obj);
}
/**
* Get an object.
*
* @param name the variable name
* @return the object
*/
Object getObject(String name) {
return objects.get(name);
}
}