Java XML NodeList createNodeCollection(final NodeList nodeList)

Description

create Node Collection

License

Apache License

Declaration

public static Collection<Node> createNodeCollection(final NodeList nodeList) 

Method Source Code

//package com.java2s;
// Written by Tomer Gabel under the Apache License Version 2.0

import java.util.Collection;
import java.util.Iterator;
import java.util.NoSuchElementException;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

public class Main {
    public static Collection<Node> createNodeCollection(final NodeList nodeList) {
        // http://www.java2s.com/Code/Java/XML/WrapNodeListtoCollection.htm
        // Written by Tomer Gabel under the Apache License Version 2.0
        return new Collection<Node>() {
            @Override// w  ww .j av a  2 s .  c o  m
            public int size() {
                return nodeList.getLength();
            }

            @Override
            public boolean isEmpty() {
                return nodeList.getLength() > 0;
            }

            @Override
            public boolean contains(final Object o) {
                if (o == null || !(o instanceof Node))
                    return false;
                for (int i = 0; i < nodeList.getLength(); ++i)
                    if (o == nodeList.item(i))
                        return true;
                return false;
            }

            @Override
            public Iterator<Node> iterator() {
                return new Iterator<Node>() {
                    private int index = 0;

                    @Override
                    public boolean hasNext() {
                        return nodeList.getLength() > this.index;
                    }

                    @Override
                    public Node next() {
                        if (this.index >= nodeList.getLength())
                            throw new NoSuchElementException();
                        return nodeList.item(this.index++);
                    }

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

            @Override
            public Object[] toArray() {
                final Node[] array = new Node[nodeList.getLength()];
                for (int i = 0; i < array.length; ++i)
                    array[i] = nodeList.item(i);
                return array;
            }

            @Override
            @SuppressWarnings({ "unchecked" })
            public <T> T[] toArray(final T[] a) throws ArrayStoreException {
                if (!a.getClass().getComponentType().isAssignableFrom(Node.class))
                    throw new ArrayStoreException(
                            a.getClass().getComponentType().getName() + " is not the same or a supertype of Node");

                if (a.length >= nodeList.getLength()) {
                    for (int i = 0; i < nodeList.getLength(); ++i)
                        a[i] = (T) nodeList.item(i);
                    if (a.length > nodeList.getLength())
                        a[nodeList.getLength()] = null;
                    return a;
                }

                return (T[]) toArray();
            }

            @Override
            public boolean add(final Node node) {
                throw new UnsupportedOperationException();
            }

            @Override
            public boolean remove(final Object o) {
                throw new UnsupportedOperationException();
            }

            @Override
            public boolean containsAll(final Collection<?> c) {
                for (final Object o : c)
                    if (!this.contains(o))
                        return false;
                return true;
            }

            @Override
            public boolean addAll(final Collection<? extends Node> c) {
                throw new UnsupportedOperationException();
            }

            @Override
            public boolean removeAll(final Collection<?> c) {
                throw new UnsupportedOperationException();
            }

            @Override
            public boolean retainAll(final Collection<?> c) {
                throw new UnsupportedOperationException();
            }

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

Related

1. convertNodelistToSet(NodeList xpathNodeSet)
2. convertToArray(NodeList e)
3. convertToArray(NodeList list)
4. convertToElementList(org.w3c.dom.NodeList _nodeList)
5. copyNodeList(NodeList nodeList)
6. createRealNodeList(NodeList nodeList)
7. equalNodes(NodeList sourceNodeList, NodeList targetNodeList)
8. extractElementsFromNodeList(NodeList config, String tag, boolean required)
9. extractNodeListFromElement(Element config, String tag, boolean required)