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The Open Source version of the IBM Toolbox for Java
///////////////////////////////////////////////////////////////////////////////
//
// JTOpen (IBM Toolbox for Java - OSS version)
//
// Filename: UpdateACSJar.java
//
// The source code contained herein is licensed under the IBM Public License
// Version 1.0, which has been approved by the Open Source Initiative.
// Copyright (C) 2018 International Business Machines Corporation and
// others. All rights reserved.
//
///////////////////////////////////////////////////////////////////////////////
package com.ibm.as400.util;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.InputStream;
import java.io.PrintWriter;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.jar.JarEntry;
import java.util.jar.JarInputStream;
import java.util.jar.JarOutputStream;
import java.util.jar.Manifest;
import com.ibm.as400.access.AS400JDBCDriver;
import com.ibm.as400.access.Copyright;
public class UpdateACSJar {
static final String copyright = "Copyright (C) 2018 International Business Machines Corporation and others.";
public static void main(String args[]) {
try {
System.out.println("Usage: java -cp jt400.jar com.ibm.as400.util.UpdateACSJar ");
System.out.println(" This program updates acsbundle.jar with the current jt400.jar file.");
System.out.println(" If acsbundle.jar is not specified, the default locations of acsbundle.jar are used. ");
System.out.println(" This is provided so that ACS Run SQL Scripts can utilize the latest features of JTOpen.");
System.out.println(" ");
System.out.println(" Note: Official support for ACS is not available if this tool is used since ");
System.out.println(" official testing has not been done on the resultant combination.");
System.out.println(" If you find ACS does not work after the update, delete acsbundle.jar and replace it ");
System.out.println(" with the backup file that was created by this program. ");
System.out.println("");
System.out.println(" Please report problems with jt400.jar on the JTOpen bug forum: https://sourceforge.net/p/jt400/bugs/ ");
System.out.println("");
System.out.println(" This version creates an enableClientAffinitiesList jdbc configuration to use the new ");
System.out.println(" ClientAffinities property.");
System.out.println("");
String version = Copyright.version;
String acsJar = null;
if (args.length > 0) {
acsJar = args[0];
}
File newJt400JarFile = locateCurrentJt400JarFile();
System.out.println("Updating acsbundle.jar");
updateAcsBundle(newJt400JarFile, acsJar);
System.out.println("Checking jdbc configuration");
createEnableClientAffinitiesList();
System.out.println("Tool ended successfully with acsbundle.jar updated with the following jar.");
System.out.println(" "+ version);
System.out.println("To verify jt400.jar version, start ACS, then RSS, then run the query");
System.out.println("values {fn jtopeninfo()};");
System.out.println("The returned information should match the version information above");
} catch (Exception e) {
e.printStackTrace(System.out);
}
}
private static File locateCurrentJt400JarFile() throws Exception {
if (AS400JDBCDriver.JDBC_MAJOR_VERSION_ == 4
&& AS400JDBCDriver.JDBC_MINOR_VERSION_ == 0) {
String loadPath = "unknown";
ClassLoader loader = UpdateACSJar.class.getClassLoader();
if (loader != null) {
String resourceName = UpdateACSJar.class.getName().replace('.', '/')
+ ".class";
java.net.URL resourceUrl = loader.getResource(resourceName);
if (resourceUrl != null) {
loadPath = resourceUrl.getPath();
if (loadPath.indexOf("file:") == 0) {
loadPath = loadPath.substring(5);
int exclIndex = loadPath.indexOf('!');
if (exclIndex > 0) {
loadPath = loadPath.substring(0, exclIndex);
}
// Make sure load path is a jar file
if (loadPath.endsWith(".jar")) {
return new File(loadPath);
} else {
throw new Exception("Resource " + loadPath + " is not jar file ");
}
} else {
throw new Exception("Rosource " + loadPath + " is not a file");
}
} else {
throw new Exception("Unable to find resourceUrl for " + resourceName);
}
} else {
throw new Exception("Unable to find classloader for "
+ UpdateACSJar.class.toString());
}
} else {
throw new Exception("Current jar file is JDBC version "
+ AS400JDBCDriver.JDBC_MAJOR_VERSION_ + "."
+ AS400JDBCDriver.JDBC_MINOR_VERSION_
+ ". Should be JDBC 4.0 (java6)");
}
}
private static void createEnableClientAffinitiesList() throws Exception {
File jdbcConfigFile = getJdbcConfigFile();
if (jdbcConfigFile.exists()) {
System.out.println("jdbc configuration '" + jdbcConfigFile.toString()
+ "' already exists and was not updated.");
} else {
PrintWriter pw = new PrintWriter(new FileWriter(jdbcConfigFile));
pw.println("# Created by com.ibm.as400.access.util.UpdateACSJar");
pw.println("naming=sql");
pw.println("time\\ format=iso");
pw.println("date\\ format=iso");
pw.println("enableClientAffinitiesList=1");
pw.println("maxRetriesForClientReroute=10");
pw.println("retryIntervalForClientReroute=6");
pw.close();
System.out.println("Create jdbc configuration '" + jdbcConfigFile.toString()
+ "'.");
}
}
private static File getJdbcConfigFile() throws Exception {
String defaultLocation = System.getProperty("user.home")
+ "\\Documents\\IBM\\iAccessClient\\RunSQLScripts\\JDBC";
if (java.lang.System.getProperty("os.name").indexOf("Mac")>=0 ) {
defaultLocation = System.getProperty("user.home") + "/IBM/iAccessClient/RunSQLScripts/JDBC";
}
File checkLocation = new File(defaultLocation);
if (!checkLocation.exists()) {
// The location does not exist if RSS has not been used. Create it.
System.out.println("Creating JDBC configuration location at "+defaultLocation);
checkLocation.mkdir();
}
if (!checkLocation.isDirectory()) {
throw new Exception("JDBC configuration location '"+defaultLocation+"' is not a directory.");
}
return new File(checkLocation+File.separator+"enableClientAffinitiesList.jdbc");
}
private static void updateAcsBundle(File newJT400JarFile, String acsJar) throws Exception {
//
File[] acsBundles;
if (acsJar == null) {
acsBundles = findAcsBundles();
} else {
File acsBundle = new File(acsJar);
if (! acsBundle.exists()) {
throw new Exception("Error "+acsJar+" does not exist");
} else {
acsBundles = new File[1];
acsBundles[0] = acsBundle;
}
}
for (int i = 0; i < acsBundles.length; i++) {
File acsBundle = acsBundles[i];
if (acsBundle != null) {
System.out.println("Updating "+acsBundle.getPath()+" with "+newJT400JarFile.getPath());
File oldBundle = backupBundle(acsBundle);
JarInputStream jis = new JarInputStream(new FileInputStream(oldBundle));
byte[] buffer = new byte[4096];
Manifest manifest = jis.getManifest();
JarOutputStream jos = new JarOutputStream(new FileOutputStream(
acsBundle), manifest);
JarEntry entry = jis.getNextJarEntry();
while (entry != null) {
String name = entry.getName();
if (name.equals("lib/jt400.jar")) {
// System.out.println("Found jt400.jar");
// Skipping to add it later
} else {
jos.putNextEntry(new JarEntry(name));
int len;
while ((len = jis.read(buffer)) > 0) {
jos.write(buffer, 0, len);
}
}
entry = jis.getNextJarEntry();
}
jis.close();
InputStream in = new FileInputStream(newJT400JarFile);
jos.putNextEntry(new JarEntry("lib/jt400.jar"));
int len;
while ((len = in.read(buffer)) > 0) {
jos.write(buffer, 0, len);
}
in.close();
jos.closeEntry();
jos.close();
}
}
}
private static File backupBundle(File acsBundle) throws Exception {
String filename = acsBundle.getAbsolutePath();
File oldFile = new File(filename+"."+currentDateString());
if (oldFile.exists()) {
oldFile.delete();
}
boolean renameWorked = acsBundle.renameTo(oldFile);
if (!renameWorked) {
throw new Exception("\n Unable to rename "+filename+" to "+oldFile+".\n Have all instances of ACS and RSS been stopped?");
} else {
System.out.println(" Renamed old acsbundle.jar to "+oldFile);
}
return oldFile;
}
private static String currentDateString() {
SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmss");
return sdf.format(new Date());
}
/* Returns an array of possible file. If a array entry is null */
/* that means that the file was not found */
/* This throws an exception if a bundle cannot be found */
private static File[] findAcsBundles() throws Exception {
String[] possibleLocations = {
"C:\\Users\\Public\\IBM\\ClientSolutions\\acsbundle.jar",
System.getProperty("user.home") + "\\IBM\\ClientSolutions\\acsbundle.jar",
"/Applications/IBM i Access Client Solutions.app/acsbundle.jar",
};
boolean found = false;
File[] acsBundles = new File[possibleLocations.length];
for (int i = 0; i < possibleLocations.length; i++) {
File bundleFile = new File(possibleLocations[i]);
if (bundleFile.exists()) {
acsBundles[i] = bundleFile;
found = true;
} /* if exists */
} /* for i */
if (!found) {
System.out.println("ERROR: Could not find bundle file");
for (int i = 0; i < possibleLocations.length; i++) {
System.out.println("..Looked for " + possibleLocations[i]);
}
throw new Exception("Could not find bundle file.");
}
return acsBundles;
}
}