org.eclipse.persistence.tools.PackageRenamer Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of eclipselink Show documentation
Show all versions of eclipselink Show documentation
EclipseLink build based upon Git transaction f2b9fc5
/*
* Copyright (c) 1998, 2021 Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1998, 2018 IBM Corporation. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0,
* or the Eclipse Distribution License v. 1.0 which is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause
*/
// Contributors:
// Oracle - initial API and implementation from Oracle TopLink
// 08/29/2016 Jody Grassel
// - 500441: Eclipselink core has System.getProperty() calls that are not potentially executed under doPriv()
package org.eclipse.persistence.tools;
import org.eclipse.persistence.internal.security.PrivilegedAccessHelper;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.util.Arrays;
import java.util.Date;
import java.util.Enumeration;
import java.util.Objects;
import java.util.Properties;
import java.util.Vector;
/**
* This class performs package renaming. It demonstrates the following:
*
* a) Reading the properties file to be a reference for changing the package
* name from your source code.
*
* b) Traverse source root directory for creating a corresponding output directory
* and finding the java source file(s) to be changing the package name.
*
* c) Search and replace the old TopLink package name(s) with new one(s) according to the reference.
*
* You will be able to see the logging message at the command line window
* where the PackageRenamer is running.
*
*/
public class PackageRenamer {
int numberOfTotalFile = 0;
int numberOfChangedFile = 0;
// contains the option of Log file.
boolean specifyLogFile = false;
java.io.PrintWriter outLog = null;
// contains the Log File
String logFileString = null;
java.io.File logFile;
// contains the source-root-directory
java.io.File sourceRootDirFile;
// contains the destination-root-directory
java.io.File destinationRootDir;
// contains the properties file path
String sourceProperties;
// contains a reference for renaming
Properties properties = null;
String propertiesFileName;
boolean VERBOSE = true;
protected static final String SYSTEM_OUT = "System.out";
BufferedReader reader = null;
String[] UNSUPPORTED_EXTENSIONS = { "jar", "zip", "ear", "war", "dll", "class", "exe" };
int BUFSIZ = 1024 * 4;
final static String CR;
static {
// bug 2756643
CR = PrivilegedAccessHelper.shouldUsePrivilegedAccess() ?
AccessController.doPrivileged(new PrivilegedAction<>() {
@Override
public String run() {
return System.getProperty("line.separator");
}
})
: System.getProperty("line.separator");
}
/**
* The constructor of a PackageRenamer class.
*/
public PackageRenamer() {
this(getDefaultPropertiesFileName());
}
public PackageRenamer(String propertiesFileName) {
System.out.println("");
System.out.println("TopLink Package Renamer");
System.out.println("-----------------------");
System.out.println(bannerText());
sourceRootDirFile = existingDirectoryFromPrompt();
System.out.println("");
destinationRootDir = promptForDestinationDirectory();
System.out.println("");
this.propertiesFileName = propertiesFileName;
outLog = streamForNonExistentFilePrompt();
properties = readChangesFile(propertiesFileName);
}
public PackageRenamer(String[] args) {
this.propertiesFileName = args[0];
sourceRootDirFile = buildAndCheckExistingDirFile(args[1]);
destinationRootDir = buildAndCheckDestinationFile(args[2]);
if (args.length == 4) {
outLog = buildAndCheckLogWriter(args[3]);
} else {
outLog = buildAndCheckLogWriter(SYSTEM_OUT);
}
properties = readChangesFile(args[0]);
logln(bannerText());
}
protected String bannerText() {
StringBuilder stringBuilder = new StringBuilder(CR.length()*3+66+42);
stringBuilder.append(CR);
stringBuilder.append("NOTE: The package renamer is meant to be run on plain text files. ");
stringBuilder.append(CR);
stringBuilder.append("A rename will NOT be done on binary files.");
stringBuilder.append(CR);
return stringBuilder.toString();
}
/**
* Do a binary copy of the file byte buffer by byte buffer.
*
* @param inFile
* The file to copy
* @param outFile
* The destination file
* @throws FileNotFoundException
* if either of the two files does not exist
* @throws IOException
* if any other IO related error occurs
*/
public void binaryCopy(File inFile, File outFile) throws FileNotFoundException, IOException {
byte[] buf = new byte[BUFSIZ];
try (FileInputStream in = new FileInputStream(inFile);
FileOutputStream out = new FileOutputStream(outFile)) {
int nBytesRead;
while ((nBytesRead = in.read(buf)) != -1) {
out.write(buf, 0, nBytesRead);
}
}
}
protected boolean bufferContainsNullChar(byte[] buffer, int bufferLength) {
for (int i = 0; i < bufferLength; i++) {
if (buffer[i] == 0) {
return true;
}
}
return false;
}
/**
* INTERNAL Creates a destination directory File object under the path
* passed, verifying correctness.
*
* @param aDirString
* The path to the directory File object to create
* @return The destination directory File object
*/
public File buildAndCheckDestinationFile(String aDirString) {
if (aDirString == null) {
throw new PackageRenamerException("Invalid destination directory entered.");
}
File aDirFile = new File(aDirString);
if (aDirFile.exists()) {
File[] dirContent = aDirFile.listFiles();
if (dirContent != null && dirContent.length != 0) {
throw new PackageRenamerException("Output Directory:" + CR + " '" + aDirString + "'" + CR + "exists and is not empty.");
}
}
if (!aDirFile.isAbsolute()) {
throw new PackageRenamerException("A relative destination directory was entered:" + CR + " '" + aDirString + "'" + CR + "The directory must be absolute.");
}
// Check if the destination directory is within the source directory. This would create an infinite loop.
if (directoryIsSubdirectory(sourceRootDirFile, aDirFile)) {
throw new PackageRenamerException("Invalid destination directory entered:" + CR + " '" + aDirString + "'" + CR + "It cannot be a sub-directory of the source directory.");
}
return aDirFile;
}
public File buildAndCheckExistingDirFile(String aDirString) {
if (aDirString == null) {
throw new PackageRenamerException("Invalid source directory entered.");
}
File aDirFile = new File(aDirString);
if (!aDirFile.exists() || !aDirFile.isDirectory()) {
throw new PackageRenamerException("Input Directory:" + CR + " '" + aDirString + "'" + CR + "does not exist or is not a directory.");
}
if (!aDirFile.isAbsolute()) {
throw new PackageRenamerException("A relative source directory was entered:" + CR + " '" + aDirString + "'" + CR + "The directory must be absolute.");
}
return aDirFile;
}
public PrintWriter buildAndCheckLogWriter(String logFileString) {
if (logFileString == null) {
throw new PackageRenamerException("Invalid log file name entered.");
}
try {
if (logFileString.equals(SYSTEM_OUT)) {
return new PrintWriter(System.out);
} else {
File aLogFile = new File(logFileString);
if (aLogFile.exists()) {
throw new PackageRenamerException("Specified log file cannot be created:" + CR + " '" + logFileString + "'");
}
FileWriter writerLog = new FileWriter(logFileString);
return new java.io.PrintWriter(writerLog);
}
} catch (IOException ioException) {
throw new PackageRenamerException("Unhandled IOException occurred while configuring log file: '" + logFileString + "', " + ioException.getMessage());
}
}
protected void cleanup() {
//Closing the Log file in case it is being open.
if (outLog != null) {
outLog.close();
}
}
/**
* This method creates an output directory for post-rename file(s).
*
* @param aDirectory
* The output directory to create
*/
public void createDestinationDirectory(File aDirectory) {
if (!aDirectory.exists()) {
if (!aDirectory.mkdirs()) {
throw new PackageRenamerException("Error while creating directory:" + CR + " '" + aDirectory + "'");
}
} else {
throw new PackageRenamerException("Error directory: '" + aDirectory + "' already exists but shouldn't.");
}
}
/**
* Return true if directory2 is contained within directory1. Both
* directories must be absolute.
*
* @param directory1
* The higher level directory
* @param directory2
* The lower level directory
* @return TRUE if directory2 is a subdirectory of directory1
*/
public static boolean directoryIsSubdirectory(File directory1, File directory2) {
// System.out.println(directory1 + " contains " + directory2);
if (directory2 == null) {
return false;
} else if (directory1.equals(directory2)) {
return true;
} else {
return directoryIsSubdirectory(directory1, directory2.getParentFile());
}
}
public File existingDirectoryFromPrompt() {
System.out.print("Enter the path of the directory which contains the files to rename:" + CR + "> ");
String aLine = null;
try {
aLine = getReader().readLine();
} catch (IOException exception) {
throw new PackageRenamerException("Error while reading the source directory: " + exception.getMessage());
}
return buildAndCheckExistingDirFile(aLine);
}
public static String getDefaultPropertiesFileName() {
String currentDirectory = PrivilegedAccessHelper.shouldUsePrivilegedAccess() ?
AccessController.doPrivileged(new PrivilegedAction<>() {
@Override
public String run() {
return System.getProperty("user.dir");
}
})
: System.getProperty("user.dir");
return currentDirectory + File.separator + "packageRename.properties";
}
public synchronized BufferedReader getReader() {
if (reader == null) {
reader = new BufferedReader(new InputStreamReader(System.in));
}
return reader;
}
/**
* Return true if the PackageRenamer should work on the given file
* extension.
*
* @param extension
* The file extension to check for being supported
* @return TRUE if the extension is supported
*/
public boolean isExtensionSupported(String extension) {
/* This was cut out because the binary check recognize these files and just copy them byte by byte.
for (int i=0; i ");
String aLine = null;
try {
aLine = getReader().readLine();
} catch (IOException exception) {
throw new PackageRenamerException("Error while reading the destination directory specified: " + exception.getMessage());
}
return buildAndCheckDestinationFile(aLine);
}
/**
* This readChangesFile() method reads the given properties file to be a
* reference for renaming TopLink package name.
*
* @param filename
* The input file to use for the renaming
* @return The Properties object containing the renaming information
*/
public Properties readChangesFile(String filename) {
Properties props = new Properties();
InputStream in = null;
try {
in = new FileInputStream(filename);
props.load(in);
} catch (FileNotFoundException fileNotFoundException) {
throw new PackageRenamerException("Properties file was not found:" + CR + " '" + filename + "'");
} catch (IOException ioException) {
throw new PackageRenamerException("IO error occurred while reading the properties file:'" + filename + "'" + ioException.getMessage());
} finally {
if (in != null) {
try {
in.close();
} catch (Exception e) {
// ignore
}
}
}
logln("Using properties file: " + filename);
return props;
}
/**
* This run() method performs,
* reading the properties file into properties variable to be a reference for changing package name.
* creating an destination-root-direetory.
* and, calling traverseSourceDirectory() method.
*/
public void run() {
// Start loging.
logln("LOG MESSAGES FROM packageRenamer");
logln("" + new Date());
logln("");
logln("INPUT: -----------------> " + sourceRootDirFile.toString());
logln("OUTPUT: ----------------> " + destinationRootDir.toString());
// logln("PROPERTIES FILE: -------> "+sourceProperties);
// logln("LOG FILE: --------------> "+writerLog);
logln("");
// Root output directory.
logln("Verifying root output directory...");
if (!(destinationRootDir.exists())) {
// Create root directory for output first.
logln("");
logln("Creating root output directory...");
createDestinationDirectory(destinationRootDir);
logln("");
}
logln("Verifying root output directory...DONE");
logln("");
// Listing the changed file(s)
logln("List of changed file(s): ");
logln("");
traverseSourceDirectory(sourceRootDirFile);
logln("");
logln("Total Changed File(s): ------> " + numberOfChangedFile);
logln("Total File(s): ------> " + numberOfTotalFile);
logln("");
}
protected PrintWriter streamForNonExistentFilePrompt() {
System.out.print("Enter the absolute path of the log file [Hit Enter for SYSTEM.OUT]:" + CR + "> ");
String aLine = null;
try {
aLine = getReader().readLine();
} catch (IOException exception) {
throw new PackageRenamerException("Error while reading the name of the log file: " + exception.getMessage());
}
if ((aLine != null) && (aLine.length() == 0)) {
return buildAndCheckLogWriter(SYSTEM_OUT);
} else {
return buildAndCheckLogWriter(aLine);
}
}
/**
* This runSearchAndReplacePackageName() reads a pre-rename source file all
* into string variable and replacing the old package names with the new
* ones according to the properties file.
*
* @param sourceFile
* The source file to process
*/
public void runSearchAndReplacePackageName(java.io.File sourceFile) {
String stringContainAllFile = "";
String sourceFileName = sourceFile.toString();
String sourceFileNameWithoutRoot = sourceFile.toString().substring(sourceRootDirFile.toString().length() + 1);
// Rename the file name if required.
sourceFileNameWithoutRoot = returnNewFileNameIfRequired(sourceFileNameWithoutRoot);
String destinationFileName = destinationRootDir.toString() + File.separator + sourceFileNameWithoutRoot;
// Reading file into string.
// stringContainAllFile = readAllStringsFromFile(sourceFileName);
FileInputStream fis = null;
try {
fis = new FileInputStream(new java.io.File(sourceFileName));
byte[] buf = new byte[BUFSIZ];
StringBuilder strBuf = new StringBuilder((int)new java.io.File(sourceFileName).length());
int i = 0;
while ((i = fis.read(buf)) != -1) {
if (bufferContainsNullChar(buf, i)) {
// This is a binary file, just copy it byte by byte to the new location. Do not do any renaming.
fis.close();
binaryCopy(sourceFile, new File(destinationFileName));
return;
}
String str = new String(buf, 0, i);
strBuf.append(str);
}
fis.close();
stringContainAllFile = new String(strBuf);
} catch (IOException ioException) {
throw new PackageRenamerException("Unexpected exception was thrown during file manipulation." + ioException.getMessage());
} finally {
if (fis != null) {
try {
fis.close();
} catch (Exception e) {
// ignore
}
}
}
// Sorting key package name.
Vector