/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.axiom.om.impl.dom;
import java.util.Iterator;
import javax.xml.XMLConstants;
import org.apache.axiom.om.impl.common.OMNamespaceImpl;
import org.w3c.dom.Attr;
class NSDeclIterator implements Iterator {
private final AttributeMap attributes;
private boolean hasNextCalled;
private int index = -1;
private Attr nsDecl;
public NSDeclIterator(AttributeMap attributes) {
this.attributes = attributes;
}
public boolean hasNext() {
if (!hasNextCalled) {
while (true) {
index++;
if (index >= attributes.getLength()) {
nsDecl = null;
hasNextCalled = true;
break;
}
Attr attr = (Attr)attributes.item(index);
if (XMLConstants.XMLNS_ATTRIBUTE_NS_URI.equals(attr.getNamespaceURI())) {
nsDecl = attr;
hasNextCalled = true;
break;
}
}
}
return nsDecl != null;
}
public Object next() {
hasNext();
hasNextCalled = false;
return new OMNamespaceImpl(nsDecl.getValue(), nsDecl.getPrefix() == null ? "" : nsDecl.getLocalName());
}
public void remove() {
if (hasNextCalled || nsDecl == null) {
throw new IllegalStateException();
}
attributes.removeItem(index);
nsDecl = null;
}
}