Example usage for java.util ListIterator next

Introduction

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

Prototype

E next();

Source Link

Document

Returns the next element in the list and advances the cursor position.

Usage

From source file:Main.java

/**
 * Introduces overlap into a series of lists. 
 * @param before # of elements from the end of the previous list to prepend
 * @param after # of elements from the beginning of the next list to append
 *//* www .  j a  va 2  s.  c o m*/
public static <T> List<List<T>> overlap(List<List<T>> lists, int before, int after) {

    if (before < 0) {
        throw new IllegalArgumentException("Value of before cannot be negative");
    }
    if (after < 0) {
        throw new IllegalArgumentException("Value of after cannot be negative");
    }

    ListIterator<List<T>> iter = lists.listIterator();

    List<List<T>> result = new ArrayList<List<T>>();
    for (; iter.hasNext();) {
        List<T> current = new ArrayList<T>(iter.next());
        List<T> prev = before > 0 ? findPrevious(iter) : null;
        List<T> next = after > 0 ? findNext(iter) : null;
        if (prev != null) {
            List<T> overlap = prev.subList(prev.size() - before, prev.size());
            current.addAll(0, overlap);
        }
        if (next != null) {
            List<T> overlap = next.subList(0, after);
            current.addAll(overlap);
        }
        result.add(current);
    }

    return result;
}

---

From source file:com.aliyun.openservices.odps.console.resource.CreateResourceCommand.java

public static AddResourceCommand parse(String commandString, ExecutionContext sessionContext)
        throws ODPSConsoleException {

    String[] tokens = new AntlrObject(commandString).getTokenStringArray();

    if (tokens != null && tokens.length >= 2 && tokens[0].toUpperCase().equals("CREATE")
            && tokens[1].toUpperCase().equals("RESOURCE")) {

        GnuParser parser = new GnuParser();
        Options options = new Options();
        options.addOption("p", "project", true, null);
        options.addOption("c", "comment", true, null);
        options.addOption("f", "force", false, null);

        try {/*from   www . j a va 2  s .  c  o m*/
            CommandLine cl = parser.parse(options, tokens);

            String refName = null;
            String alias = "";
            String comment = null;
            String type = null;
            String partitionSpec = "";
            boolean isUpdate = false;

            List<String> argList = cl.getArgList();
            int size = argList.size();

            if (size < 4) {
                throw new ODPSConsoleException(ODPSConsoleConstants.BAD_COMMAND + "Missing parameters");
            }

            ListIterator<String> iter = argList.listIterator();
            iter.next();
            iter.next();
            type = iter.next();
            refName = iter.next();
            if (iter.hasNext()) {
                String item = iter.next();
                if (item.equals("(")) {
                    boolean isParenPaired = false;

                    while (iter.hasNext()) {
                        String s = iter.next();
                        if (s.equals(")")) {
                            isParenPaired = true;
                            break;
                        }
                        partitionSpec += s;
                    }

                    if (!isParenPaired) {
                        throw new ODPSConsoleException(
                                ODPSConsoleConstants.BAD_COMMAND + "Unpaired parenthesis");
                    }

                    if (!iter.hasNext()) {
                        throw new ODPSConsoleException(
                                ODPSConsoleConstants.BAD_COMMAND + "Missing parameter: alias");
                    }
                    item = iter.next();
                }

                alias = item;
            }

            if (iter.hasNext()) {
                throw new ODPSConsoleException(
                        ODPSConsoleConstants.BAD_COMMAND + "Illegal parameter: " + iter.next());
            }

            String projectName = null;
            Option[] opts = cl.getOptions();
            for (Option opt : opts) {
                if ("f".equals(opt.getOpt())) {
                    isUpdate = true;
                } else if ("c".equals(opt.getOpt())) {
                    comment = opt.getValue();
                } else if ("p".equals(opt.getOpt())) {
                    projectName = opt.getValue();
                } else {
                    throw new ODPSConsoleException(
                            ODPSConsoleConstants.BAD_COMMAND + "Illegal option: " + opt.getOpt());
                }
            }

            return new AddResourceCommand(commandString, sessionContext, refName, alias, comment, type,
                    partitionSpec, isUpdate, projectName);
        } catch (ParseException e) {
            throw new ODPSConsoleException(ODPSConsoleConstants.BAD_COMMAND + "Invalid parameters");
        }
    } else {
        return null;
    }
}

---

From source file:Main.java

public static <E> void swapAll(final List<E> list, final int off, final int len) {
    if (list instanceof RandomAccess) {
        final int last = off + len - 1;
        for (int i = off, j = last; i < j; i++, j--) {
            list.set(i, list.set(j, list.get(i)));
        }/* w  w w .  j av  a 2 s.  c om*/
    } else {
        final int end = off + len;
        final ListIterator<E> iteratorI = list.listIterator(off);
        final ListIterator<E> iteratorJ = list.listIterator(end);
        E tmp;

        while (iteratorI.nextIndex() < iteratorJ.nextIndex()) {
            tmp = iteratorI.next();
            iteratorI.set(iteratorJ.previous());
            iteratorJ.set(tmp);
        }
    }
}

---

From source file:Main.java

public static <E> void swapAll(final List<E> list) {
    if (list instanceof RandomAccess) {
        for (int i = 0, j = list.size() - 1; i < j; i++, j--) {
            list.set(i, list.set(j, list.get(i)));
        }/* w  w w .  j a v a  2  s.com*/
    } else {
        final ListIterator<E> iteratorI = list.listIterator();
        final ListIterator<E> iteratorJ = list.listIterator(list.size());
        E tmp;

        while (iteratorI.nextIndex() < iteratorJ.nextIndex()) {
            tmp = iteratorI.next();
            iteratorI.set(iteratorJ.previous());
            iteratorJ.set(tmp);
        }
    }
}

---

From source file:Main.java

/**
 * Wraps an <code>ListIterator</code> and returns a <code>ListIterator</code>
 * that cannot modify the underlying list.
 * All methods that could be used to modify the list throw
 * <code>UnsupportedOperationException</code>
 * @param underlying original list iterator
 * @param <T> element type//from   w  w  w.j  av  a 2 s  .  co m
 * @return unmodifiable list iterator
 */
@Nonnull
public static <T> ListIterator<T> unmodifiableListIterator(final @Nonnull ListIterator<T> underlying) {
    return new ListIterator<T>() {
        public boolean hasNext() {
            return underlying.hasNext();
        }

        public T next() {
            return underlying.next();
        }

        public boolean hasPrevious() {
            return underlying.hasPrevious();
        }

        public T previous() {
            return underlying.previous();
        }

        public int nextIndex() {
            return underlying.nextIndex();
        }

        public int previousIndex() {
            return underlying.previousIndex();
        }

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

        public void set(T t) {
            throw new UnsupportedOperationException();
        }

        public void add(T t) {
            throw new UnsupportedOperationException();
        }
    };
}

---

From source file:gov.nih.nci.protexpress.util.ManageProtAppInputOutputHelper.java

/**
 * Removes the invalid items (inputs/outputs with blank name, filename and notes) from the list.
 *
 * @param lst the list of inputs/outputs.
 *///from   www. ja va2s  .c  om
public static void removeInvalidItems(List<InputOutputObject> lst) {
    ListIterator<InputOutputObject> listIter = lst.listIterator();
    while (listIter.hasNext()) {
        InputOutputObject ioObject = listIter.next();
        if (StringUtils.isBlank(ioObject.getName()) && StringUtils.isBlank(ioObject.getDataFileURL())
                && StringUtils.isBlank(ioObject.getNotes())) {
            listIter.remove();
        }
    }
}

---

From source file:cascading.ComparePlatformsTest.java

private static void createComparisons(String comparison, File lhsRoot, File rhsRoot, TestSuite suite) {
    LOG.info("comparing directory: {}, with: {}", lhsRoot, rhsRoot);

    LinkedList<File> lhsFiles = new LinkedList<File>(
            FileUtils.listFiles(lhsRoot, new RegexFileFilter("^[\\w-]+"), TrueFileFilter.INSTANCE));
    LinkedList<File> rhsFiles = new LinkedList<File>();

    LOG.info("found lhs files: {}", lhsFiles.size());

    int rootLength = lhsRoot.toString().length() + 1;

    ListIterator<File> iterator = lhsFiles.listIterator();
    while (iterator.hasNext()) {
        File localFile = iterator.next();
        File file = new File(rhsRoot, localFile.toString().substring(rootLength));

        if (localFile.toString().endsWith(NONDETERMINISTIC))
            iterator.remove();//from  w  w w  . j  a v a 2s .c om
        else if (file.exists())
            rhsFiles.add(file);
        else
            iterator.remove();
    }

    LOG.info("running {} comparisons", lhsFiles.size());

    for (int i = 0; i < lhsFiles.size(); i++) {
        File localFile = lhsFiles.get(i);
        File hadoopFile = rhsFiles.get(i);

        suite.addTest(new CompareTestCase(comparison, localFile, hadoopFile));
    }
}

---

From source file:de.codesourcery.asm.util.Disassembler.java

/**
 * Disassemble a method.//from  w  w  w.  j  av a  2s.c  om
 * 
 * @param method method to disassemble
 * @param includeVirtual whether to 'disassemble' virtual (ASM-generated) nodes that
  * have no equivalent in .class files
 * @param printInsnIndices
  * @param printInsnIndices whether to output the instruction index in front of the mnemonic    
 * @return disassembled method
 */
public static String disassemble(MethodNode method, boolean includeVirtual, boolean printInsnIndices) {

    final StringBuilder result = new StringBuilder();
    @SuppressWarnings("unchecked")
    final ListIterator<AbstractInsnNode> it = method.instructions.iterator();
    while (it.hasNext()) {
        AbstractInsnNode node = it.next();
        String line = disassemble(node, method, includeVirtual, printInsnIndices);
        if (line == null) {
            continue;
        }

        if (result.length() > 0) {
            result.append("\n");
        }
        result.append(line);
    }
    return result.toString();
}

---

From source file:org.mule.providers.soap.axis.wsdl.wsrf.util.AdviceAdderHelper.java

/**
 * addAdvisors to ProxyfactoryBean given using reflection to find Advices class
 * end with "Advice" suffix. All advisors are mapped on "extend*" pattern string
 * method refer to Target bean./* w  ww .  j  a  va  2  s .  c o m*/
 * 
 * @param targetImpl Target Object
 * @return new Proxy
 */
public static IExtendCall addAdvisorsTo(IExtendCall targetImpl) {
    ProxyFactory factory = new ProxyFactory(targetImpl);

    List l = getListAdvisorClass();
    ListIterator li = l.listIterator();
    Advisor advisor = null;

    if (order.size() == 0) {

        while (li.hasNext()) {
            advisor = (Advisor) li.next();
            order.add(advisor);
        }
    }
    Iterator it = order.iterator();

    while (it.hasNext()) {
        advisor = (Advisor) it.next();
        factory.addAdvisor(countAdvice, advisor);
        Logger.getLogger(factory.getClass()).log(Level.DEBUG, factory.getClass().getName() + " : added "
                + advisor.getAdvice().getClass().getName() + " at index position " + countAdvice);
        countAdvice++;
    }

    countAdvice = 0;
    return (IExtendCall) factory.getProxy();
}

---

From source file:gov.nih.nci.protexpress.util.ManageProtAppInputOutputHelper.java

/**
 * Removes potential duplicate inputs from the list.
 *
 * @param lstInputs the protocol application inputs.
 * @param lstPotentialInputs the list of potential inputs.
 *//*from www . j a  v a2  s. co  m*/
private static void removeDuplicateInputs(List<InputOutputObject> lstInputs,
        List<InputOutputObject> lstPotentialInputs) {
    ListIterator<InputOutputObject> iterPAInputs = lstInputs.listIterator();
    while (iterPAInputs.hasNext()) {
        InputOutputObject currentInput = iterPAInputs.next();
        if ((currentInput.getId() != null) && !StringUtils.isBlank(currentInput.getId().toString())
                && lstPotentialInputs.contains(currentInput)) {
            lstPotentialInputs.remove(currentInput);
        }
    }
}

---

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