Example usage for java.io IOException IOException

Introduction

In this page you can find the example usage for java.io IOException IOException.

Prototype

public IOException(Throwable cause) 

Source Link

Document

Constructs an IOException with the specified cause and a detail message of (cause==null ?

Usage

From source file:examples.mail.IMAPExportMbox.java

public static void main(String[] args) throws IOException {
    int connect_timeout = CONNECT_TIMEOUT;
    int read_timeout = READ_TIMEOUT;

    int argIdx = 0;
    String eol = EOL_DEFAULT;/*from   ww  w .j  ava2s.co m*/
    boolean printHash = false;
    boolean printMarker = false;
    int retryWaitSecs = 0;

    for (argIdx = 0; argIdx < args.length; argIdx++) {
        if (args[argIdx].equals("-c")) {
            connect_timeout = Integer.parseInt(args[++argIdx]);
        } else if (args[argIdx].equals("-r")) {
            read_timeout = Integer.parseInt(args[++argIdx]);
        } else if (args[argIdx].equals("-R")) {
            retryWaitSecs = Integer.parseInt(args[++argIdx]);
        } else if (args[argIdx].equals("-LF")) {
            eol = LF;
        } else if (args[argIdx].equals("-CRLF")) {
            eol = CRLF;
        } else if (args[argIdx].equals("-.")) {
            printHash = true;
        } else if (args[argIdx].equals("-X")) {
            printMarker = true;
        } else {
            break;
        }
    }

    final int argCount = args.length - argIdx;

    if (argCount < 2) {
        System.err.println("Usage: IMAPExportMbox [-LF|-CRLF] [-c n] [-r n] [-R n] [-.] [-X]"
                + " imap[s]://user:password@host[:port]/folder/path [+|-]<mboxfile> [sequence-set] [itemnames]");
        System.err.println(
                "\t-LF | -CRLF set end-of-line to LF or CRLF (default is the line.separator system property)");
        System.err.println("\t-c connect timeout in seconds (default 10)");
        System.err.println("\t-r read timeout in seconds (default 10)");
        System.err.println("\t-R temporary failure retry wait in seconds (default 0; i.e. disabled)");
        System.err.println("\t-. print a . for each complete message received");
        System.err.println("\t-X print the X-IMAP line for each complete message received");
        System.err.println(
                "\tthe mboxfile is where the messages are stored; use '-' to write to standard output.");
        System.err.println(
                "\tPrefix filename with '+' to append to the file. Prefix with '-' to allow overwrite.");
        System.err.println(
                "\ta sequence-set is a list of numbers/number ranges e.g. 1,2,3-10,20:* - default 1:*");
        System.err
                .println("\titemnames are the message data item name(s) e.g. BODY.PEEK[HEADER.FIELDS (SUBJECT)]"
                        + " or a macro e.g. ALL - default (INTERNALDATE BODY.PEEK[])");
        System.exit(1);
    }

    final URI uri = URI.create(args[argIdx++]);
    final String file = args[argIdx++];
    String sequenceSet = argCount > 2 ? args[argIdx++] : "1:*";
    final String itemNames;
    // Handle 0, 1 or multiple item names
    if (argCount > 3) {
        if (argCount > 4) {
            StringBuilder sb = new StringBuilder();
            sb.append("(");
            for (int i = 4; i <= argCount; i++) {
                if (i > 4) {
                    sb.append(" ");
                }
                sb.append(args[argIdx++]);
            }
            sb.append(")");
            itemNames = sb.toString();
        } else {
            itemNames = args[argIdx++];
        }
    } else {
        itemNames = "(INTERNALDATE BODY.PEEK[])";
    }

    final boolean checkSequence = sequenceSet.matches("\\d+:(\\d+|\\*)"); // are we expecting a sequence?
    final MboxListener chunkListener;
    if (file.equals("-")) {
        chunkListener = null;
    } else if (file.startsWith("+")) {
        final File mbox = new File(file.substring(1));
        System.out.println("Appending to file " + mbox);
        chunkListener = new MboxListener(new BufferedWriter(new FileWriter(mbox, true)), eol, printHash,
                printMarker, checkSequence);
    } else if (file.startsWith("-")) {
        final File mbox = new File(file.substring(1));
        System.out.println("Writing to file " + mbox);
        chunkListener = new MboxListener(new BufferedWriter(new FileWriter(mbox, false)), eol, printHash,
                printMarker, checkSequence);
    } else {
        final File mbox = new File(file);
        if (mbox.exists()) {
            throw new IOException("mailbox file: " + mbox + " already exists!");
        }
        System.out.println("Creating file " + mbox);
        chunkListener = new MboxListener(new BufferedWriter(new FileWriter(mbox)), eol, printHash, printMarker,
                checkSequence);
    }

    String path = uri.getPath();
    if (path == null || path.length() < 1) {
        throw new IllegalArgumentException("Invalid folderPath: '" + path + "'");
    }
    String folder = path.substring(1); // skip the leading /

    // suppress login details
    final PrintCommandListener listener = new PrintCommandListener(System.out, true) {
        @Override
        public void protocolReplyReceived(ProtocolCommandEvent event) {
            if (event.getReplyCode() != IMAPReply.PARTIAL) { // This is dealt with by the chunk listener
                super.protocolReplyReceived(event);
            }
        }
    };

    // Connect and login
    final IMAPClient imap = IMAPUtils.imapLogin(uri, connect_timeout * 1000, listener);

    String maxIndexInFolder = null;

    try {

        imap.setSoTimeout(read_timeout * 1000);

        if (!imap.select(folder)) {
            throw new IOException("Could not select folder: " + folder);
        }

        for (String line : imap.getReplyStrings()) {
            maxIndexInFolder = matches(line, PATEXISTS, 1);
            if (maxIndexInFolder != null) {
                break;
            }
        }

        if (chunkListener != null) {
            imap.setChunkListener(chunkListener);
        } // else the command listener displays the full output without processing

        while (true) {
            boolean ok = imap.fetch(sequenceSet, itemNames);
            // If the fetch failed, can we retry?
            if (!ok && retryWaitSecs > 0 && chunkListener != null && checkSequence) {
                final String replyString = imap.getReplyString(); //includes EOL
                if (startsWith(replyString, PATTEMPFAIL)) {
                    System.err.println("Temporary error detected, will retry in " + retryWaitSecs + "seconds");
                    sequenceSet = (chunkListener.lastSeq + 1) + ":*";
                    try {
                        Thread.sleep(retryWaitSecs * 1000);
                    } catch (InterruptedException e) {
                        // ignored
                    }
                } else {
                    throw new IOException(
                            "FETCH " + sequenceSet + " " + itemNames + " failed with " + replyString);
                }
            } else {
                break;
            }
        }

    } catch (IOException ioe) {
        String count = chunkListener == null ? "?" : Integer.toString(chunkListener.total);
        System.err.println("FETCH " + sequenceSet + " " + itemNames + " failed after processing " + count
                + " complete messages ");
        if (chunkListener != null) {
            System.err.println("Last complete response seen: " + chunkListener.lastFetched);
        }
        throw ioe;
    } finally {

        if (printHash) {
            System.err.println();
        }

        if (chunkListener != null) {
            chunkListener.close();
            final Iterator<String> missingIds = chunkListener.missingIds.iterator();
            if (missingIds.hasNext()) {
                StringBuilder sb = new StringBuilder();
                for (;;) {
                    sb.append(missingIds.next());
                    if (!missingIds.hasNext()) {
                        break;
                    }
                    sb.append(",");
                }
                System.err.println("*** Missing ids: " + sb.toString());
            }
        }
        imap.logout();
        imap.disconnect();
    }
    if (chunkListener != null) {
        System.out.println("Processed " + chunkListener.total + " messages.");
    }
    if (maxIndexInFolder != null) {
        System.out.println("Folder contained " + maxIndexInFolder + " messages.");
    }
}

---

From source file:dk.defxws.fedoragsearch.server.GTransformer.java

public static void main(String[] args) {
    int argCount = 2;
    try {/*  www . j a  v  a  2  s .co m*/
        if (args.length == argCount) {
            File f = new File(args[1]);
            StreamSource ss = new StreamSource(new File(args[1]));
            GTransformer gt = new GTransformer();
            StreamResult destStream = new StreamResult(new StringWriter());
            gt.transform(args[0], ss, destStream);
            StringWriter sw = (StringWriter) destStream.getWriter();
            System.out.print(sw.getBuffer().toString());
        } else {
            throw new IOException("Must supply " + argCount + " arguments.");
        }
    } catch (Exception e) {
        e.printStackTrace();
        System.err.println("Usage: GTransformer xsltName xmlFileName");
    }
}

---

From source file:act.util.UploadFileStorageService.java

public static ISObject store(FileItemStream fileItemStream, App app) {
    UploadFileStorageService ss = app.uploadFileStorageService();
    try {//from  w  ww. j a  va  2s.  c  o  m
        return ss._store(fileItemStream);
    } catch (IOException e) {
        throw E.ioException(e);
    }
}

---

From source file:Main.java

public static void deleteFileOrThrow(File paramFile) throws IOException {
    if ((paramFile.exists()) && (!paramFile.delete()))
        throw new IOException("failed to delete file: " + paramFile);
}

---

From source file:Main.java

public static void checkValidName(final String iFileName) throws IOException {
    if (iFileName.contains("..") || iFileName.contains("/") || iFileName.contains("\\"))
        throw new IOException("Invalid file name '" + iFileName + "'");
}

---

From source file:Main.java

private static void validateTagName(Element n, String expected) throws IOException {
    if (!n.getTagName().equalsIgnoreCase(expected)) {
        throw new IOException("Expected tag name '" + expected + "' but was '" + n.getTagName() + "'.");
    }/*from w  ww.ja va2s  .  c  o  m*/
}

---

From source file:Main.java

public static void validateNotExists(File f) throws IOException {
    if (f.exists()) {
        throw new IOException(String.format("%s exists, please choose another file\n", f.toString()));
    }//from   w  w w.ja v  a2  s . c o m
}

---

From source file:Main.java

public static File ensureDirExists(File dir) throws IOException {
    if (!(dir.isDirectory() || dir.mkdirs())) {
        throw new IOException("Couldn't create directory '" + dir + "'");
    }/* ww  w .  j  a  v  a2 s  . c om*/
    return dir;
}

---

From source file:Main.java

private static void deleteOrThrow(File file) throws IOException {
    if (file.exists()) {
        boolean isDeleted = file.delete();
        if (!isDeleted) {
            throw new IOException(String.format("File %s can't be deleted", file.getAbsolutePath()));
        }//  ww w. ja  va 2  s.  c  o  m
    }
}

---

From source file:Main.java

public static void copyFile(File sourceFile, File destFile) throws IOException {
    if (!destFile.exists()) {
        if (!destFile.createNewFile()) {
            throw new IOException("Cannot create file: " + destFile.getCanonicalFile());
        }/*from w  w  w  .  j a v  a  2s  .c o m*/
    }
    FileChannel source = null;
    FileChannel destination = null;
    try {
        source = new FileInputStream(sourceFile).getChannel();
        destination = new FileOutputStream(destFile).getChannel();
        long count = 0;
        long size = source.size();
        while ((count += destination.transferFrom(source, count, size - count)) < size)
            ;
    } finally {
        if (source != null) {
            source.close();
        }
        if (destination != null) {
            destination.close();
        }
    }
}

---

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