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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 groovy.xml.slurpersupport;
import groovy.lang.Closure;
import groovy.lang.GroovyObject;
import groovy.lang.GroovyRuntimeException;
import org.codehaus.groovy.runtime.typehandling.DefaultTypeTransformation;
import java.io.IOException;
import java.io.Writer;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
/**
* Lazy evaluated representation of a child node.
*/
public class NodeChild extends GPathResult {
private final Node node;
/**
* @param node a node
* @param parent the GPathResult prior to the application of the expression creating this GPathResult
* @param namespacePrefix the namespace prefix if any
* @param namespaceTagHints the known tag to namespace mappings
*/
public NodeChild(final Node node, final GPathResult parent, final String namespacePrefix, final Map namespaceTagHints) {
super(parent, node.name(), namespacePrefix, namespaceTagHints);
this.node = node;
((NamespaceAwareHashMap)this.node.attributes()).setNamespaceTagHints(namespaceTagHints);
}
/**
* @param node a node
* @param parent the GPathResult prior to the application of the expression creating this GPathResult
* @param namespaceTagHints the known tag to namespace mappings
*/
public NodeChild(final Node node, final GPathResult parent, final Map namespaceTagHints) {
this(node, parent, "*", namespaceTagHints);
}
@Override
public GPathResult parent() {
if (node.parent() != null)
return new NodeChild(node.parent(), this, namespaceTagHints);
else
return this;
}
@Override
public int size() {
return 1;
}
@Override
public String text() {
return this.node.text();
}
/**
* Returns the list of any direct String nodes of this NodeChild.
*
* @return the list of String values from this node
* @since 2.3.0
*/
public List localText() {
return this.node.localText();
}
/**
* Returns the URI of the namespace of this NodeChild.
* @return the namespace of this NodeChild
*/
public String namespaceURI() {
return this.node.namespaceURI();
}
/**
* Throws a GroovyRuntimeException
, because this method is not implemented yet.
*/
@Override
public GPathResult parents() {
// TODO Auto-generated method stub
throw new GroovyRuntimeException("parents() not implemented yet");
}
@Override
public Iterator iterator() {
return createIterator(this);
}
@Override
public Iterator nodeIterator() {
return createIterator(this.node);
}
@Override
public Object getAt(final int index) {
if (index == 0) {
return node;
} else {
throw new ArrayIndexOutOfBoundsException(index);
}
}
/**
* Returns a map containing all attributes of the Node of this NodeChild.
* @return a map containing all attributes
*/
public Map attributes() {
return this.node.attributes();
}
@Override
public Iterator childNodes() {
return this.node.childNodes();
}
@Override
public GPathResult find(final Closure closure) {
if (DefaultTypeTransformation.castToBoolean(closure.call(new Object[]{this.node}))) {
return this;
} else {
return new NoChildren(this, "", this.namespaceTagHints);
}
}
@Override
public GPathResult findAll(final Closure closure) {
return find(closure);
}
@Override
public void build(final GroovyObject builder) {
this.node.build(builder, this.namespaceMap, this.namespaceTagHints);
}
@Override
public Writer writeTo(final Writer out) throws IOException {
return this.node.writeTo(out);
}
@Override
protected void replaceNode(final Closure newValue) {
this.node.replaceNode(newValue, this);
}
@Override
protected void replaceBody(final Object newValue) {
this.node.replaceBody(newValue);
}
@Override
protected void appendNode(final Object newValue) {
this.node.appendNode(newValue, this);
}
}
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