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/*
* 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.tuscany.sca.common.xml.stax.reader;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import javax.xml.namespace.QName;
/**
* @version $Rev$ $Date$
*/
public class SimpleXmlNodeImpl implements XmlNode {
private static final String XSI_PREFIX = "xsi";
private static final String XSI_NS = "http://www.w3.org/2001/XMLSchema-instance";
private static final QName XSI_NIL = new QName(XSI_NS, "nil", XSI_PREFIX);
private static final Map<String, String> NS_MAP = new HashMap<String, String>();
static {
NS_MAP.put(XSI_PREFIX, XSI_NS);
}
protected Type type;
protected QName name;
protected Object value;
public SimpleXmlNodeImpl(QName name, Object value) {
this(name, value, name != null ? Type.ELEMENT : Type.CHARACTERS);
}
public SimpleXmlNodeImpl(QName name, Object value, Type type) {
super();
this.type = type;
this.name = name;
this.value = value;
}
/**
* @see org.apache.tuscany.sca.common.xml.stax.reader.databinding.xml.XmlNode#attributes()
*/
public List<XmlNode> attributes() {
if (type == Type.ELEMENT && value == null) {
// Nil element
XmlNode attr = new SimpleXmlNodeImpl(XSI_NIL, "true");
return Arrays.asList(attr);
}
return null;
}
/**
* @see org.apache.tuscany.sca.common.xml.stax.reader.databinding.xml.XmlNode#children()
*/
public Iterator<XmlNode> children() {
if (type == Type.ELEMENT && value != null) {
// Nil element
XmlNode node = new SimpleXmlNodeImpl(null, value);
return Arrays.asList(node).iterator();
}
return null;
}
/**
* @see org.apache.tuscany.sca.common.xml.stax.reader.databinding.xml.XmlNode#getName()
*/
public QName getName() {
return name;
}
/**
* @see org.apache.tuscany.sca.common.xml.stax.reader.databinding.xml.XmlNode#getValue()
*/
public String getValue() {
return value == null ? null : String.valueOf(value);
}
/**
* @see org.apache.tuscany.sca.common.xml.stax.reader.databinding.xml.XmlNode#namespaces()
*/
public Map<String, String> namespaces() {
if (type == Type.ELEMENT && value == null) {
return NS_MAP;
}
return null;
}
public Type getType() {
return type;
}
public void setType(Type type) {
this.type = type;
}
}
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