com.hazelcast.internal.config.override.ConfigOverrideElementAdapter Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2024, Hazelcast, Inc. All Rights Reserved.
*
* Licensed 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 com.hazelcast.internal.config.override;
import org.w3c.dom.Attr;
import org.w3c.dom.DOMException;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.w3c.dom.TypeInfo;
import org.w3c.dom.UserDataHandler;
import javax.annotation.Nonnull;
import java.util.ArrayList;
import java.util.List;
import java.util.Objects;
import java.util.stream.Collectors;
/**
* A class adapting {@link ConfigNode}s to {@link Element}.
*
* Used for processing external configuration overrides.
*/
@SuppressWarnings({"checkstyle:methodcount"})
class ConfigOverrideElementAdapter implements Element {
private final ConfigNode configNode;
ConfigOverrideElementAdapter(@Nonnull ConfigNode node) {
Objects.requireNonNull(node);
this.configNode = node;
}
@Override
public String getNodeName() {
return configNode.getName();
}
@Override
public String getNodeValue() throws DOMException {
return configNode.getValue();
}
@Override
public short getNodeType() {
return Node.ELEMENT_NODE;
}
@Override
public Node getParentNode() {
return configNode.getParent().map(ConfigOverrideElementAdapter::new).orElse(null);
}
@Override
public NodeList getChildNodes() {
return new NodeList() {
private final List children = configNode.getChildren().values().stream()
.map(ConfigOverrideElementAdapter::new)
.collect(Collectors.toList());
@Override
public Node item(int index) {
return children.get(index);
}
@Override
public int getLength() {
return children.size();
}
};
}
@Override
public void setNodeValue(String nodeValue) throws DOMException {
throw new UnsupportedOperationException();
}
@Override
public Node getFirstChild() {
throw new UnsupportedOperationException();
}
@Override
public Node getLastChild() {
throw new UnsupportedOperationException();
}
@Override
public Node getPreviousSibling() {
throw new UnsupportedOperationException();
}
@Override
public Node getNextSibling() {
throw new UnsupportedOperationException();
}
@Override
public NamedNodeMap getAttributes() {
return new NamedNodeAdapter();
}
@Override
public Document getOwnerDocument() {
throw new UnsupportedOperationException();
}
@Override
public Node insertBefore(Node newChild, Node refChild) throws DOMException {
throw new UnsupportedOperationException();
}
@Override
public Node replaceChild(Node newChild, Node oldChild) throws DOMException {
throw new UnsupportedOperationException();
}
@Override
public Node removeChild(Node oldChild) throws DOMException {
throw new UnsupportedOperationException();
}
@Override
public Node appendChild(Node newChild) throws DOMException {
throw new UnsupportedOperationException();
}
@Override
public boolean hasChildNodes() {
return !configNode.getChildren().isEmpty();
}
@Override
public Node cloneNode(boolean deep) {
throw new UnsupportedOperationException();
}
@Override
public void normalize() {
throw new UnsupportedOperationException();
}
@Override
public boolean isSupported(String feature, String version) {
throw new UnsupportedOperationException();
}
@Override
public String getNamespaceURI() {
throw new UnsupportedOperationException();
}
@Override
public String getPrefix() {
throw new UnsupportedOperationException();
}
@Override
public void setPrefix(String prefix) throws DOMException {
throw new UnsupportedOperationException();
}
@Override
public String getLocalName() {
return getNodeName();
}
@Override
public boolean hasAttributes() {
throw new UnsupportedOperationException();
}
@Override
public String getBaseURI() {
throw new UnsupportedOperationException();
}
@Override
public short compareDocumentPosition(Node other) throws DOMException {
throw new UnsupportedOperationException();
}
@Override
public String getTextContent() throws DOMException {
return getNodeValue();
}
@Override
public void setTextContent(String textContent) throws DOMException {
throw new UnsupportedOperationException();
}
@Override
public boolean isSameNode(Node other) {
throw new UnsupportedOperationException();
}
@Override
public String lookupPrefix(String namespaceURI) {
throw new UnsupportedOperationException();
}
@Override
public boolean isDefaultNamespace(String namespaceURI) {
throw new UnsupportedOperationException();
}
@Override
public String lookupNamespaceURI(String prefix) {
throw new UnsupportedOperationException();
}
@Override
public boolean isEqualNode(Node arg) {
throw new UnsupportedOperationException();
}
@Override
public Object getFeature(String feature, String version) {
throw new UnsupportedOperationException();
}
@Override
public Object setUserData(String key, Object data, UserDataHandler handler) {
throw new UnsupportedOperationException();
}
@Override
public Object getUserData(String key) {
throw new UnsupportedOperationException();
}
@Override
public String getTagName() {
return getNodeName();
}
@Override
public String getAttribute(String name) {
ConfigNode configNode = this.configNode.getChildren().get(name);
return configNode != null && configNode.hasValue()
? configNode.getValue()
: "";
}
@Override
public void setAttribute(String name, String value) throws DOMException {
throw new UnsupportedOperationException();
}
@Override
public void removeAttribute(String name) throws DOMException {
throw new UnsupportedOperationException();
}
@Override
public Attr getAttributeNode(String name) {
throw new UnsupportedOperationException();
}
@Override
public Attr setAttributeNode(Attr newAttr) throws DOMException {
throw new UnsupportedOperationException();
}
@Override
public Attr removeAttributeNode(Attr oldAttr) throws DOMException {
throw new UnsupportedOperationException();
}
@Override
public NodeList getElementsByTagName(String name) {
return new SingletonNodeList(getAttributes().getNamedItem(name));
}
@Override
public String getAttributeNS(String namespaceURI, String localName) throws DOMException {
throw new UnsupportedOperationException();
}
@Override
public void setAttributeNS(String namespaceURI, String qualifiedName, String value) throws DOMException {
throw new UnsupportedOperationException();
}
@Override
public void removeAttributeNS(String namespaceURI, String localName) throws DOMException {
throw new UnsupportedOperationException();
}
@Override
public Attr getAttributeNodeNS(String namespaceURI, String localName) throws DOMException {
throw new UnsupportedOperationException();
}
@Override
public Attr setAttributeNodeNS(Attr newAttr) throws DOMException {
throw new UnsupportedOperationException();
}
@Override
public NodeList getElementsByTagNameNS(String namespaceURI, String localName) throws DOMException {
throw new UnsupportedOperationException();
}
@Override
public boolean hasAttribute(String name) {
return getAttributes().getNamedItem(name) != null;
}
@Override
public boolean hasAttributeNS(String namespaceURI, String localName) throws DOMException {
throw new UnsupportedOperationException();
}
@Override
public TypeInfo getSchemaTypeInfo() {
throw new UnsupportedOperationException();
}
@Override
public void setIdAttribute(String name, boolean isId) throws DOMException {
throw new UnsupportedOperationException();
}
@Override
public void setIdAttributeNS(String namespaceURI, String localName, boolean isId) throws DOMException {
throw new UnsupportedOperationException();
}
@Override
public void setIdAttributeNode(Attr idAttr, boolean isId) throws DOMException {
throw new UnsupportedOperationException();
}
static class SingletonNodeList implements NodeList {
private final Node element;
SingletonNodeList(Node element) {
this.element = element;
}
@Override
public Node item(int index) {
return index != 0 ? null : element;
}
@Override
public int getLength() {
return 0;
}
}
private class NamedNodeAdapter implements NamedNodeMap {
@Override
public Node getNamedItem(String name) {
return configNode.getChildren().get(name) == null
? null
: new ConfigOverrideElementAdapter(configNode.getChildren().get(name));
}
@Override
public Node setNamedItem(Node arg) throws DOMException {
throw new UnsupportedOperationException();
}
@Override
public Node removeNamedItem(String name) throws DOMException {
throw new UnsupportedOperationException();
}
@Override
public Node item(int index) {
return new ConfigOverrideElementAdapter(new ArrayList<>(configNode.getChildren().values()).get(index));
}
@Override
public int getLength() {
return configNode.getChildren().size();
}
@Override
public Node getNamedItemNS(String namespaceURI, String localName) throws DOMException {
throw new UnsupportedOperationException();
}
@Override
public Node setNamedItemNS(Node arg) throws DOMException {
throw new UnsupportedOperationException();
}
@Override
public Node removeNamedItemNS(String namespaceURI, String localName) throws DOMException {
throw new UnsupportedOperationException();
}
}
}