org.camunda.spin.impl.xml.dom.DomXmlElementIterable Maven / Gradle / Ivy
/*
* Copyright Camunda Services GmbH and/or licensed to Camunda Services GmbH
* under one or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information regarding copyright
* ownership. Camunda licenses this file to you under the Apache License,
* Version 2.0; 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.camunda.spin.impl.xml.dom;
import org.camunda.spin.impl.xml.dom.format.DomXmlDataFormat;
import org.camunda.spin.xml.SpinXmlElement;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import java.util.Iterator;
import static org.camunda.commons.utils.EnsureUtil.ensureNotNull;
/**
* @author Sebastian Menski
*/
public class DomXmlElementIterable implements Iterable {
protected final NodeList nodeList;
protected final DomXmlDataFormat dataFormat;
protected final String namespace;
protected final String name;
protected boolean validating;
public DomXmlElementIterable(Element domElement, DomXmlDataFormat dataFormat) {
this(domElement.getChildNodes(), dataFormat);
}
public DomXmlElementIterable(NodeList nodeList, DomXmlDataFormat dataFormat) {
this.nodeList = nodeList;
this.dataFormat = dataFormat;
this.namespace = null;
this.name = null;
validating = false;
}
public DomXmlElementIterable(Element domElement, DomXmlDataFormat dataFormat, String namespace, String name) {
this(domElement.getChildNodes(), dataFormat, namespace, name);
}
public DomXmlElementIterable(NodeList nodeList, DomXmlDataFormat dataFormat, String namespace, String name) {
ensureNotNull("name", name);
this.nodeList = nodeList;
this.dataFormat = dataFormat;
this.namespace = namespace;
this.name = name;
validating = true;
}
public Iterator iterator() {
return new DomXmlNodeIterator() {
private NodeList childs = nodeList;
protected int getLength() {
return childs.getLength();
}
protected SpinXmlElement getCurrent() {
if (childs != null) {
Node item = childs.item(index);
if (item != null && item instanceof Element) {
SpinXmlElement current = dataFormat.createElementWrapper((Element) item);
if (!validating || (current.hasNamespace(namespace) && name.equals(current.name()))) {
return current;
}
}
}
return null;
}
};
}
}