Example usage for java.util NoSuchElementException NoSuchElementException

Introduction

In this page you can find the example usage for java.util NoSuchElementException NoSuchElementException.

Prototype

public NoSuchElementException() 

Source Link

Document

Constructs a NoSuchElementException with null as its error message string.

Usage

From source file:com.continuent.tungsten.common.security.KeystoreManagerCtrl.java

/**
 * Password Manager entry point/* w w w .j  ava2s .  c om*/
 * 
 * @param argv
 * @throws Exception
 */
public static void main(String argv[]) throws Exception {
    keystoreManager = new KeystoreManagerCtrl();

    // --- Options ---
    CommandLine line = null;

    try {
        CommandLineParser parser = new GnuParser();
        // --- Parse the command line arguments ---

        // --- Help
        line = parser.parse(keystoreManager.helpOptions, argv, true);
        if (line.hasOption(_HELP)) {
            DisplayHelpAndExit(EXIT_CODE.EXIT_OK);
        }

        // --- Program command line options
        line = parser.parse(keystoreManager.options, argv);

        // --- Compulsory arguments : Get options ---
        if (line.hasOption(_KEYSTORE_LOCATION))
            keystoreManager.keystoreLocation = line.getOptionValue(_KEYSTORE_LOCATION);

        if (line.hasOption(_KEY_ALIAS))
            keystoreManager.keyAlias = line.getOptionValue(_KEY_ALIAS);

        if (line.hasOption(_KEY_TYPE)) {
            String keyType = line.getOptionValue(_KEY_TYPE);
            // This will throw an exception if the type is not recognised
            KEYSTORE_TYPE certificateTYpe = KEYSTORE_TYPE.fromString(keyType);
            keystoreManager.keyType = certificateTYpe;
        }

        if (line.hasOption(_KEYSTORE_PASSWORD))
            keystoreManager.keystorePassword = line.getOptionValue(_KEYSTORE_PASSWORD);
        if (line.hasOption(_KEY_PASSWORD))
            keystoreManager.keyPassword = line.getOptionValue(_KEY_PASSWORD);

    } catch (ParseException exp) {
        logger.error(exp.getMessage());
        DisplayHelpAndExit(EXIT_CODE.EXIT_ERROR);
    } catch (Exception e) {
        // Workaround for Junit test
        if (e.toString().contains("CheckExitCalled")) {
            throw e;
        } else
        // Normal behaviour
        {
            logger.error(e.getMessage());
            Exit(EXIT_CODE.EXIT_ERROR);
        }

    }

    // --- Perform commands ---

    // ######### Check password ##########
    if (line.hasOption(_CHECK)) {
        try {
            if (keystoreManager.keystorePassword == null || keystoreManager.keyPassword == null) {
                // --- Get passwords from stdin if not given on command line
                List<String> listPrompts = Arrays.asList("Keystore password:",
                        MessageFormat.format("Password for key {0}:", keystoreManager.keyAlias));
                List<String> listUserInput = keystoreManager.getUserInputFromStdin(listPrompts);

                if (listUserInput.size() == listPrompts.size()) {
                    keystoreManager.keystorePassword = listUserInput.get(0);
                    keystoreManager.keyPassword = listUserInput.get(1);
                } else {
                    throw new NoSuchElementException();
                }
            }
            try {
                // --- Check that all keys in keystore use the keystore
                // password
                logger.info(MessageFormat.format("Using keystore:{0}", keystoreManager.keystoreLocation));

                SecurityHelper.checkKeyStorePasswords(keystoreManager.keystoreLocation, keystoreManager.keyType,
                        keystoreManager.keystorePassword, keystoreManager.keyAlias,
                        keystoreManager.keyPassword);
                logger.info(MessageFormat.format("OK : Identical password for Keystore and key={0}",
                        keystoreManager.keyAlias));
            } catch (UnrecoverableKeyException uke) {
                logger.error(MessageFormat.format("At least 1 key has a wrong password.{0}", uke.getMessage()));
                Exit(EXIT_CODE.EXIT_ERROR);
            } catch (Exception e) {
                logger.error(MessageFormat.format("{0}", e.getMessage()));
                Exit(EXIT_CODE.EXIT_ERROR);
            }

        } catch (NoSuchElementException nse) {
            logger.error(nse.getMessage());
            Exit(EXIT_CODE.EXIT_ERROR);
        } catch (Exception e) {
            logger.error(MessageFormat.format("Error while running the program: {0}", e.getMessage()));
            Exit(EXIT_CODE.EXIT_ERROR);
        }
    }

    Exit(EXIT_CODE.EXIT_OK);
}

---

From source file:Main.java

public static <ELEMENT_TYPE> Iterator<ELEMENT_TYPE> unmodifiableEmptyIterator() {
    return new Iterator<ELEMENT_TYPE>() {

        @Override//from w ww. j  a  v  a  2s .c  o m
        public boolean hasNext() {
            return false;
        }

        @Override
        public ELEMENT_TYPE next() {
            throw new NoSuchElementException();
        }

        @Override
        public void remove() {
            throw new UnsupportedOperationException("This collection is imutable and empty");
        }

    };
}

---

From source file:Main.java

public static final int getAdapterPositionById(final Adapter adapter, final long id)
        throws NoSuchElementException {
    final int count = adapter.getCount();

    for (int pos = 0; pos < count; pos++) {
        if (id == adapter.getItemId(pos)) {
            return pos;
        }/*from  ww w. j a v a  2  s  . co m*/
    }

    throw new NoSuchElementException();
}

---

From source file:Main.java

public static <E extends Comparable<E>> E getSmallest(final Collection<? extends E> c) {
    if (c.isEmpty()) {
        throw new NoSuchElementException();
    }/*  w w w  .j  a v  a 2s  . c o m*/

    if ((c instanceof List) && (c instanceof RandomAccess)) {
        return getSmallest((List<? extends E>) c);
    }

    final Iterator<? extends E> iterator = c.iterator();
    E result = iterator.next();
    E element;

    while (iterator.hasNext()) {
        element = iterator.next();
        if (element.compareTo(result) < 0) {
            result = element;
        }
    }

    return result;
}

---

From source file:Main.java

public static <E extends Comparable<E>> E getGreatest(final Collection<? extends E> c) {
    if (c.isEmpty()) {
        throw new NoSuchElementException();
    }//ww  w . j  av  a  2 s  . com

    if ((c instanceof List) && (c instanceof RandomAccess)) {
        return getGreatest((List<? extends E>) c);
    }

    final Iterator<? extends E> iterator = c.iterator();
    E result = iterator.next();
    E element;

    while (iterator.hasNext()) {
        element = iterator.next();
        if (element.compareTo(result) > 0) {
            result = element;
        }
    }

    return result;
}

---

From source file:Main.java

public static <T> Iterable<T> asIterable(final T[] a) {
    return new Iterable<T>() {
        @Override/*from  w  w  w.jav  a  2s.  co  m*/
        public Iterator<T> iterator() {
            return new Iterator<T>() {
                int index = 0;

                @Override
                public boolean hasNext() {
                    return index < a.length;
                }

                @Override
                public T next() {
                    if (!hasNext()) {
                        throw new NoSuchElementException();
                    }
                    return a[index++];
                }

                @Override
                public void remove() {
                    throw new UnsupportedOperationException("Not supported yet.");
                }
            };
        }
    };
}

---

From source file:Main.java

public static <T> Iterable<T> replicate(final T value, final int count) {
    return new Iterable<T>() {
        @Override/*ww  w.j  a va  2s  .c o m*/
        public Iterator<T> iterator() {
            return new Iterator<T>() {
                int remaining = count;

                @Override
                public boolean hasNext() {
                    return remaining > 0;
                }

                @Override
                public T next() {
                    if (remaining-- <= 0)
                        throw new NoSuchElementException();
                    return value;
                }

                @Override
                public void remove() {
                    throw new UnsupportedOperationException();
                }
            };
        }
    };
}

---

From source file:Main.java

private static <E> Collection<E> asCollection(final E[] elements) {
    return new AbstractCollection<E>() {

        public Iterator<E> iterator() {
            return new Iterator<E>() {

                // Object field
                private int index = 0;

                // Interface methods
                public boolean hasNext() {
                    return index < elements.length;
                }/*from   w w  w.  ja v a2  s .  c o m*/

                public E next() {
                    if (!hasNext()) {
                        throw new NoSuchElementException();
                    }
                    return elements[index++];
                }

                public void remove() {
                    throw new UnsupportedOperationException("remove");
                }

            };
        }

        public int size() {
            return elements.length;
        }

    };
}

---

From source file:Permutator.java

public static <T> Iterable<List<T>> permutations(final List<T> list) {
    return new Iterable<List<T>>() {
        public Iterator<List<T>> iterator() {
            return new Iterator<List<T>>() {
                private int current = 0;
                private final long length = factorial(list.size());

                public List<T> next() {
                    if (!hasNext()) {
                        throw new NoSuchElementException();
                    }//w  ww .  ja va 2  s .co m
                    List<T> permutation = new ArrayList<T>(list);
                    int k = current;
                    for (int j = 2; j <= list.size(); j++) {
                        k /= j - 1;
                        Collections.swap(permutation, (k % j), j - 1);
                    }
                    current++;
                    return permutation;
                }

                public void remove() {
                    throw new UnsupportedOperationException();
                }

                public boolean hasNext() {
                    return current < length;
                }
            };
        }
    };
}

---

From source file:Main.java

public static Element nthElement(Element parent, String elementName, int index) {
    NodeList nds = parent.getElementsByTagName(elementName);
    if (nds.getLength() < index)
        throw new NoSuchElementException();
    Element node = (Element) nds.item(index - 1);
    return node;/*from  ww  w  . j  a  v  a  2 s. c om*/
}

---

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