Author: alevkovsky Date: 2009-03-27 05:32:36 -0400 (Fri, 27 Mar 2009) New Revision: 13239 Modified: trunk/test-applications/realworld2/web/src/main/java/org/richfaces/realworld/util/FileUtils.java Log: Change messages for copy file Modified: trunk/test-applications/realworld2/web/src/main/java/org/richfaces/realworld/util/FileUtils.java =================================================================== --- trunk/test-applications/realworld2/web/src/main/java/org/richfaces/realworld/util/FileUtils.java 2009-03-27 00:27:23 UTC (rev 13238) +++ trunk/test-applications/realworld2/web/src/main/java/org/richfaces/realworld/util/FileUtils.java 2009-03-27 09:32:36 UTC (rev 13239) @@ -4,231 +4,231 @@ import java.util.zip.*; - /** * Command line program to copy a file to another directory. - * + * * @author Marco Schmidt */ //TODO nick - COPYRIGHT!!! public class FileUtils { - // constant values for the override option - public static final int OVERWRITE_ALWAYS = 1; - public static final int OVERWRITE_NEVER = 2; - public static final int OVERWRITE_ASK = 3; + // constant values for the override option + public static final int OVERWRITE_ALWAYS = 1; + public static final int OVERWRITE_NEVER = 2; + public static final int OVERWRITE_ASK = 3; - // program options initialized to default values - private static int bufferSize = 4 * 1024; - private static boolean clock = true; - private static boolean copyOriginalTimestamp = true; - private static boolean verify = true; - private static int override = OVERWRITE_ASK; + // program options initialized to default values + private static final int BUFFER_SIZE = 4 * 1024; + private static final boolean CLOCK = true; + private static final boolean COPY_ORIGINAL_TIMESTAMP = true; + private static final boolean VERIFY = true; + private static final int OVERRIDE = OVERWRITE_ASK; - public static Long copyFile(File srcFile, File destFile) throws IOException { - if(!srcFile.getPath().toLowerCase().endsWith("jpg") && !srcFile.getPath().toLowerCase().endsWith("jpeg")){ - //TODO nick - should be return null - return -1L; - } - InputStream in = new FileInputStream(srcFile); - OutputStream out = new FileOutputStream(destFile); - long millis = System.currentTimeMillis(); - CRC32 checksum = null; - if (verify) { - checksum = new CRC32(); - checksum.reset(); - } - byte[] buffer = new byte[bufferSize]; - int bytesRead; - while ((bytesRead = in.read(buffer)) >= 0) { - if (verify) { - checksum.update(buffer, 0, bytesRead); - } - out.write(buffer, 0, bytesRead); - } - - //TODO nick - this should be in finally block - out.close(); - in.close(); - if (clock) { - millis = System.currentTimeMillis() - millis; - System.out.println("Second(s): " + (millis / 1000L)); - } - if (verify) { - return new Long(checksum.getValue()); - } else { - return null; - } - } + public static Long copyFile(File srcFile, File destFile) throws IOException { + if (!srcFile.getPath().toLowerCase().endsWith("jpg") && !srcFile.getPath().toLowerCase().endsWith("jpeg")) { + //TODO nick - should be return null + return -1L; + } + final InputStream in = new FileInputStream(srcFile); + final OutputStream out = new FileOutputStream(destFile); + long millis = System.currentTimeMillis(); + CRC32 checksum; + if (VERIFY) { + checksum = new CRC32(); + checksum.reset(); + } + final byte[] buffer = new byte[BUFFER_SIZE]; + int bytesRead = in.read(buffer); + while (bytesRead >= 0) { + if (VERIFY) { + checksum.update(buffer, 0, bytesRead); + } + out.write(buffer, 0, bytesRead); + bytesRead = in.read(buffer); + } - public static Long createChecksum(File file) throws IOException { - long millis = System.currentTimeMillis(); - InputStream in = new FileInputStream(file); - CRC32 checksum = new CRC32(); - checksum.reset(); - byte[] buffer = new byte[bufferSize]; - int bytesRead; - while ((bytesRead = in.read(buffer)) >= 0) { - checksum.update(buffer, 0, bytesRead); - } - in.close(); - if (clock) { - millis = System.currentTimeMillis() - millis; - System.out.println("Second(s): " + (millis / 1000L)); - } - return new Long(checksum.getValue()); - } + //TODO nick - this should be in finally block + out.close(); + in.close(); + if (CLOCK) { + millis = System.currentTimeMillis() - millis; + System.out.println("Copy file '" + srcFile.getPath() + "' on " + millis / 1000L + " second(s)"); + } + if (VERIFY) { + return checksum.getValue(); + } else { + return null; + } + } - /** - * Determine if data is to be copied to given file. Take into consideration - * override option and ask user in case file exists and override option is - * ask. - * - * @param file - * File object for potential destination file - * @return true if data is to be copied to file, false if not - */ - public static boolean doCopy(File file) { - boolean exists = file.exists(); - if (override == OVERWRITE_ALWAYS || !exists) { - return true; - } else if (override == OVERWRITE_NEVER) { - return false; - } else if (override == OVERWRITE_ASK) { - return readYesNoFromStandardInput("File exists. " - + "Overwrite (y/n)?"); - } else { - throw new InternalError("Program error. Invalid " - + "value for override: " + override); - } - } + public static Long createChecksum(File file) throws IOException { + long millis = System.currentTimeMillis(); + final InputStream in = new FileInputStream(file); + final CRC32 checksum = new CRC32(); + checksum.reset(); + final byte[] buffer = new byte[BUFFER_SIZE]; + int bytesRead = in.read(buffer); + while (bytesRead >= 0) { + checksum.update(buffer, 0, bytesRead); + bytesRead = in.read(buffer); + } + in.close(); + if (CLOCK) { + millis = System.currentTimeMillis() - millis; + System.out.println("Checksum for file '" + file.getPath() + "' created on " + millis / 1000L + " second(s)"); + } + return checksum.getValue(); + } - public static void main(String[] args) throws IOException { - // make sure there are exactly two arguments - if (args.length != 2) { - System.err.println("Usage: CopyFile SRC-FILE-NAME DEST-DIR-NAME"); - System.exit(1); - } - // make sure the source file is indeed a readable file - File srcFile = new File(args[0]); - if (!srcFile.isFile() || !srcFile.canRead()) { - System.err.println("Not a readable file: " + srcFile.getName()); - System.exit(1); - } - // make sure the second argument is a directory - File destDir = new File(args[1]); - if (!destDir.isDirectory()) { - System.err.println("Not a directory: " + destDir.getName()); - System.exit(1); - } - // create File object for destination file - File destFile = new File(destDir, srcFile.getName()); + /** + * Determine if data is to be copied to given file. Take into consideration + * override option and ask user in case file exists and override option is + * ask. + * + * @param file File object for potential destination file + * @return true if data is to be copied to file, false if not + */ + public static boolean doCopy(File file) { + final boolean exists = file.exists(); + if (OVERRIDE == OVERWRITE_ALWAYS || !exists) { + return true; + } else if (OVERRIDE == OVERWRITE_NEVER) { + return false; + } else if (OVERRIDE == OVERWRITE_ASK) { + return readYesNoFromStandardInput("File exists. Overwrite (y/n)?"); + } else { + throw new InternalError("Program error. Invalid " + + "value for override: " + OVERRIDE); + } + } - // check if copying is desired given overwrite option - if (!doCopy(destFile)) { - return; - } + public static void main(String[] args) throws IOException { + // make sure there are exactly two arguments + if (args.length != 2) { + System.err.println("Usage: CopyFile SRC-FILE-NAME DEST-DIR-NAME"); + System.exit(1); + } + // make sure the source file is indeed a readable file + final File srcFile = new File(args[0]); + if (!srcFile.isFile() || !srcFile.canRead()) { + System.err.println("Not a readable file: " + srcFile.getName()); + System.exit(1); + } + // make sure the second argument is a directory + final File destDir = new File(args[1]); + if (!destDir.isDirectory()) { + System.err.println("Not a directory: " + destDir.getName()); + System.exit(1); + } + // create File object for destination file + final File destFile = new File(destDir, srcFile.getName()); - // copy file, optionally creating a checksum - Long checksumSrc = copyFile(srcFile, destFile); + // check if copying is desired given overwrite option + if (!doCopy(destFile)) { + return; + } - // copy timestamp of last modification - if (copyOriginalTimestamp) { - if (!destFile.setLastModified(srcFile.lastModified())) { - System.err.println("Error: Could not set " - + "timestamp of copied file."); - } - } + // copy file, optionally creating a checksum + final Long checksumSrc = copyFile(srcFile, destFile); - // optionally verify file - if (verify) { - System.out.print("Verifying destination file..."); - Long checksumDest = createChecksum(destFile); - if (checksumSrc.equals(checksumDest)) { - System.out.println(" OK, files are equal."); - } else { - System.out.println(" Error: Checksums differ."); - } - } - } + // copy timestamp of last modification + if (COPY_ORIGINAL_TIMESTAMP) { + if (!destFile.setLastModified(srcFile.lastModified())) { + System.err.println("Error: Could not set timestamp of copied file."); + } + } - /** - * Print a message to standard output and read lines from standard input - * until yes or no (y or n) is entered. - * - * @param message - * informative text to be answered by user - * @return user answer, true for yes, false for no. - */ - public static boolean readYesNoFromStandardInput(String message) { - System.out.println(message); - String line; - BufferedReader in = new BufferedReader(new InputStreamReader(System.in)); - Boolean answer = null; - try { - while ((line = in.readLine()) != null) { - line = line.toLowerCase(); - if ("y".equals(line) || "yes".equals(line)) { - answer = Boolean.TRUE; - break; - } else if ("n".equals(line) || "no".equals(line)) { - answer = Boolean.FALSE; - break; - } else { - System.out.println("Could not understand answer (\"" + line - + "\"). Please use y for yes or n for no."); - } - } - if (answer == null) { - throw new IOException("Unexpected end of input from stdin."); - } - in.close(); - return answer.booleanValue(); - } catch (IOException ioe) { - throw new InternalError( - "Cannot read from stdin or write to stdout."); - } - } + // optionally verify file + if (VERIFY) { + System.out.print("Verifying destination file..."); + final Long checksumDest = createChecksum(destFile); + if (checksumSrc.equals(checksumDest)) { + System.out.println(" OK, files are equal."); + } else { + System.out.println(" Error: Checksums differ."); + } + } + } - public static void copyDirectory(File srcDir, File dstDir) - throws IOException { - - //TODO nick - skip hidden/system directories - if (".svn".equals(srcDir.getName())) { - return; - } - - if (srcDir.isDirectory()) { - if (!dstDir.exists()) { - dstDir.mkdir(); - } + /** + * Print a message to standard output and read lines from standard input + * until yes or no (y or n) is entered. + * + * @param message informative text to be answered by user + * @return user answer, true for yes, false for no. + */ + public static boolean readYesNoFromStandardInput(String message) { + System.out.println(message); + final BufferedReader in = new BufferedReader(new InputStreamReader(System.in)); - String[] children = srcDir.list(); - for (int i = 0; i < children.length; i++) { - copyDirectory(new File(srcDir, children[i]), new File(dstDir, - children[i])); - } - } else { - FileUtils.copyFile(srcDir, dstDir); - } - } - - public static void deleteDirectory(File dir) throws IOException { - if (dir.isDirectory()) { - if (dir.exists()) { - File [] children = dir.listFiles(); - for (int i = 0; i < children.length; i++) { - //TODO nick - add try/finally so that deletion continues if something failed - deleteDirectory(children[i]); - } - } + try { + Boolean answer = null; - } else { - if (dir.exists()) { - System.out.println(dir.delete()); - } - } - dir.delete(); - } + String line = in.readLine(); + while (line != null) { + line = line.toLowerCase(); + if ("y".equals(line) || "yes".equals(line)) { + answer = Boolean.TRUE; + break; + } else if ("n".equals(line) || "no".equals(line)) { + answer = Boolean.FALSE; + break; + } else { + System.out.println("Could not understand answer (\"" + line + + "\"). Please use y for yes or n for no."); + } + line = in.readLine(); + } + if (answer == null) { + throw new IOException("Unexpected end of input from stdin."); + } + in.close(); + return answer; + } catch (IOException ioe) { + throw new InternalError( + "Cannot read from stdin or write to stdout."); + } + } + + public static void copyDirectory(File srcDir, File dstDir) + throws IOException { + + //TODO nick - skip hidden/system directories + if (".svn".equals(srcDir.getName())) { + return; + } + + if (srcDir.isDirectory()) { + if (!dstDir.exists()) { + dstDir.mkdir(); + } + + for (String aChildren : srcDir.list()) { + copyDirectory(new File(srcDir, aChildren), new File(dstDir, aChildren)); + } + } else { + copyFile(srcDir, dstDir); + } + } + + public static void deleteDirectory(File dir) throws IOException { + if (dir.isDirectory()) { + if (dir.exists()) { + for (File child : dir.listFiles()) { + //TODO nick - add try/finally so that deletion continues if something failed + deleteDirectory(child); + } + } + + } else { + if (dir.exists()) { + final boolean isFileDeleted = dir.delete(); + System.out.println((isFileDeleted ? "OK " : "CANCEL ") + + "Delete file '" + dir.getPath() + '\''); + } + } + dir.delete(); + } + } \ No newline at end of file