simplevm.java

著名的dialogic电话语音卡的java驱动程序,已经验证可用。

            if (code == this.code)
                return true;
             play(home+"badcode.vox", tptNone);
        }
        return false;
    }

    /**
     * tellmessages() : play back recorded messages
     */
    private void tellmessages() {
        PLFolder messages = new PLFolder(folder);
        int total = messages.size();
        for (int i = 0; i < total; ) {
            play(folder + messages.fileAt(i), tptNone);
            play(home+"menu.vox", tptDigit);
            String op = vdev.getdig(tptDigit);
            vdev.waitIdle();
            if (op.length() == 0)
                // No input ?? assume repeat
                continue;
            switch(op.charAt(0)) {
            case '1':
                // repeat
                break;
            case '2':
                // Erase
                File messFile = new File(folder+messages.fileAt(i));
                messFile.delete();
            case '3':
                // Keep:
                i++;
                break;
            default:
                // Bad input, should tell him...
                break;
            }
        }
        play(home+"nomore.vox", tptNone);
    }

    /**
     * newFile(directory)
     * Make a new file in a directory. Take care of name clashes...
     */
    private File newFile(String directory) throws IOException {
        Date now = new Date();
        RandomAccessFile raf;
        File temp, f;

        temp = new File(directory, "newfile.tmp");

        StringBuffer basename = new StringBuffer("@");
        int d = now.getMonth() * 31 + now.getDate();
        if (d < 10) basename.append("0");
        if (d < 100) basename.append("0");
        basename.append(d);
        d = now.getHours();
        if (d < 10) basename.append("0");
        basename.append(d);
        d = now.getMinutes();
        if (d < 10) basename.append("0");
        basename.append(d);
        basename.append(".");
        d = now.getSeconds();
        if (d < 10) basename.append("0");
        basename.append(d);
        basename.append(" ");

        for (d = 0; d < 36; d++) {
            // Create a unique file
            // Lots of trouble because of lack of create() sys call.
            if (d < 10)
                basename.setCharAt(11, (char)('0' + d));
            else
                basename.setCharAt(11, (char)('a' - 10 + d));
            f = new File(directory, basename.toString());
            if (f.exists()) continue;

            do {
                try {
                    raf = new RandomAccessFile(temp, "rw");
                    raf.close();
                    // Rename to f, if succeeds, then its ok
                    if (temp.renameTo(f))
                        return f;
                } catch (IOException ioe) {
                    // Somebody is using it now ?
                    try { Thread.currentThread().sleep(100);
                    } catch (InterruptedException ie) {
                        throw new RuntimeException("newFile interrupted");
                    }
                    continue;
                }
            } while (!temp.exists()); // May be some one used ours ?
        }
        temp.delete();
        throw new IOException("newFile: too many new files");
    }

    /**
     * getNumber(dx, min length, max length, do beep)
     * ask for a numeric input with standard sintaxis (i.e. * clears, # ends)
     */
    public static long getNumber(Voice v, int min, int max, boolean bip) {
        // Input of digits:
        // end if * or # at once, first digit at 4 secs max, next at 2
        TPT fdigTpt = new TPT(TPT.DIGMASK, 0xffff, TPT.LEVEL, 0);
        fdigTpt.add(TPT.MAXTIME, 40, 0, 0);

        TPT ndigTpt = new TPT(TPT.DIGMASK, TPT.DM_P|TPT.DM_S, TPT.LEVEL, 0);
        ndigTpt.add(TPT.MAXIDDTIME, 10, 0, 0);
        ndigTpt.add(TPT.MAXDTMF, max-1, TPT.LEVEL|TPT.USE, 0);


        if (bip) {
            v.playtone(new TNGEN(1000, -10, 20), new TPT());
            v.cleardig();
        }

        String dig = v.getdig(fdigTpt);
        if (dig.length() == 0) {
            // No input ?
            throw new NumberFormatException("No input");
        }
        if (dig.charAt(0) == '#') {
            // ??
            return 0;
        }
        if (dig.charAt(0) == '*') {
            // clear ?
            v.cleardig();
            dig = "";
        }
        for (int i = 0; i < 3; i++) {
            dig += v.getdig(ndigTpt);
            int len = dig.length();
            if (len == 0) {
                continue;
            }

            switch(dig.charAt(len-1)) {
            case '*':
                v.cleardig();
                dig = "";
                continue;
            case '#':
                if (len == 1)
                    return 0;
                return Long.parseLong(dig.substring(0, len-1));
            default:
                if (len < min)
                    continue;
                return Long.parseLong(dig.substring(0, len));
            }
        }
        throw new NumberFormatException("Bad input");
    }


   private void play(String file, TPT tpt) {
        try {
            IOTT iott = new IOTT(file);
            vdev.play(iott, tpt, Dialogic.SR_8);
            vdev.waitIdle();
            iott.close();
        } catch (IOException e) {
            System.out.println("Play error");
            return;
        }
    }

    /**
     * PLFolder: small class to deal with messages in a folder
     */

    class PLFolder extends Object implements FilenameFilter {
        File directory;
        String files[] = null;

        public PLFolder(String dirName) {
            directory = new File(dirName);
            if (!directory.isDirectory())
                throw new RuntimeException("Invalid directory name");
        }

        public int size() {
            if (files == null) init();
            return files.length;
        }

        public String fileAt(int n) {
            if (files == null) init();
            if (n >= size())
                throw new IndexOutOfBoundsException("PLFolder: not so many files");
            return files[n];
        }

        private void init() {
            files = directory.list(this);
        }

        public boolean accept(File dir, String name) {
            return name.charAt(0) == '@';
        }
    }
}