Examples with Iterator java.util.Iterator used on opensource projects

Example 91 with Iterator

use of java.util.Iterator in project groovy-core by groovy.

the class GPathResult method breadthFirst.

/**
     * Provides an Iterator over all the nodes of this GPathResult using a breadth-first traversal.
     *
     * @return the <code>Iterator</code> of (breadth-first) ordered GPathResults
     */
public Iterator breadthFirst() {
    return new Iterator() {

        private final List list = new LinkedList();

        private Iterator iter = iterator();

        private GPathResult next = getNextByBreadth();

        public boolean hasNext() {
            return this.next != null;
        }

        public Object next() {
            try {
                return this.next;
            } finally {
                this.next = getNextByBreadth();
            }
        }

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

        private GPathResult getNextByBreadth() {
            List children = new ArrayList();
            while (this.iter.hasNext() || !children.isEmpty()) {
                if (this.iter.hasNext()) {
                    final GPathResult node = (GPathResult) this.iter.next();
                    this.list.add(node);
                    this.list.add(this.iter);
                    children.add(node.children());
                } else {
                    List nextLevel = new ArrayList();
                    for (Object child : children) {
                        GPathResult next = (GPathResult) child;
                        Iterator iterator = next.iterator();
                        while (iterator.hasNext()) {
                            nextLevel.add(iterator.next());
                        }
                    }
                    this.iter = nextLevel.iterator();
                    children = new ArrayList();
                }
            }
            if (this.list.isEmpty()) {
                return null;
            } else {
                GPathResult result = (GPathResult) this.list.get(0);
                this.list.remove(0);
                this.iter = (Iterator) this.list.get(0);
                this.list.remove(0);
                return result;
            }
        }
    };
}

Example 92 with Iterator

use of java.util.Iterator in project groovy-core by groovy.

the class GPathResult method depthFirst.

/**
     * Provides an Iterator over all the nodes of this GPathResult using a depth-first traversal.
     *
     * @return the <code>Iterator</code> of (depth-first) ordered GPathResults
     */
public Iterator depthFirst() {
    return new Iterator() {

        private final List list = new LinkedList();

        private final Stack stack = new Stack();

        private Iterator iter = iterator();

        private GPathResult next = getNextByDepth();

        public boolean hasNext() {
            return this.next != null;
        }

        public Object next() {
            try {
                return this.next;
            } finally {
                this.next = getNextByDepth();
            }
        }

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

        private GPathResult getNextByDepth() {
            while (this.iter.hasNext()) {
                final GPathResult node = (GPathResult) this.iter.next();
                this.list.add(node);
                this.stack.push(this.iter);
                this.iter = node.children().iterator();
            }
            if (this.list.isEmpty()) {
                return null;
            } else {
                GPathResult result = (GPathResult) this.list.get(0);
                this.list.remove(0);
                this.iter = (Iterator) this.stack.pop();
                return result;
            }
        }
    };
}

Example 93 with Iterator

use of java.util.Iterator in project groovy-core by groovy.

the class NodeChildren method size.

public synchronized int size() {
    if (this.size == -1) {
        final Iterator iter = iterator();
        this.size = 0;
        while (iter.hasNext()) {
            iter.next();
            this.size++;
        }
    }
    return this.size;
}

Example 94 with Iterator

use of java.util.Iterator in project groovy-core by groovy.

the class NodeChildren method replaceNode.

protected void replaceNode(final Closure newValue) {
    final Iterator iter = iterator();
    while (iter.hasNext()) {
        final NodeChild result = (NodeChild) iter.next();
        result.replaceNode(newValue);
    }
}

Example 95 with Iterator

use of java.util.Iterator in project groovy-core by groovy.

the class DOMCategory method toString.

private static String toString(NodeList self) {
    StringBuilder sb = new StringBuilder();
    sb.append("[");
    Iterator it = XmlGroovyMethods.iterator(self);
    while (it.hasNext()) {
        if (sb.length() > 1)
            sb.append(", ");
        sb.append(it.next().toString());
    }
    sb.append("]");
    return sb.toString();
}