groovy.util.Node类的使用及代码示例
本文整理了Java中groovy.util.Node类的一些代码示例，展示了Node类的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Node类的具体详情如下：
包路径：groovy.util.Node
类名称：Node
Node介绍
[英]Represents an arbitrary tree node which can be used for structured metadata or any arbitrary XML-like tree. A node can have a name, a value and an optional Map of attributes. Typically the name is a String and a value is either a String or a List of other Nodes, though the types are extensible to provide a flexible structure, e.g. you could use a QName as the name which includes a namespace URI and a local name. Or a JMX ObjectName etc. So this class can represent metadata like {foo a=1 b="abc"} or nested metadata like {foo a=1 b="123" { bar x=12 text="hello" }}
[中]表示任意树节点，该节点可用于结构化元数据或任意类似XML的树。节点可以有名称、值和可选的属性映射。通常，名称是字符串，值是字符串或其他节点的列表，尽管类型可以扩展以提供灵活的结构，例如，您可以使用QName作为名称，其中包括名称空间URI和本地名称。或者一个JMX对象名等。所以这个类可以表示像{foo a=1 b="abc"}这样的元数据，或者像{foo a=1 b="123" { bar x=12 text="hello" }}这样的嵌套元数据
代码示例
代码示例来源：origin: org.codehaus.groovy/groovy
/**
* Replaces the current node with the supplied node.
*
* @param n the new Node
* @return the original now replaced node
*/
public Node replaceNode(Node n) {
if (parent() == null) {
throw new UnsupportedOperationException("Replacing the root node is not supported");
}
List tail = getTail();
parent().appendNode(n.name(), n.attributes(), n.value());
parent().children().addAll(tail);
getParentList(parent()).remove(this);
this.setParent(null);
return this;
}代码示例来源：origin: groovy/groovy-core
private boolean isEmptyElement(Node node) {
if (node == null) {
throw new IllegalArgumentException("Node must not be null!");
}
if (!node.children().isEmpty()) {
return false;
}
return node.text().length() == 0;
}代码示例来源：origin: org.codehaus.groovy/groovy
/**
* Creates a new node as a child of the current node.
*
* @param name the name of the new node
* @param attributes the attributes of the new node
* @param value the value of the new node
* @return the newly created <code>Node</code>
*/
public Node appendNode(Object name, Map attributes, Object value) {
return new Node(this, name, attributes, value);
}代码示例来源：origin: org.codehaus.groovy/groovy
private void appendNodes(Closure c) {
List tail = getTail();
for (Node child : buildChildrenFromClosure(c)) {
parent().appendNode(child.name(), child.attributes(), child.value());
}
parent().children().addAll(tail);
}代码示例来源：origin: org.codehaus.groovy/groovy
/**
* Adds sibling nodes (defined using builder-style notation via a Closure) after the current node.
*
* @param c A Closure defining the new sibling nodes to add using builder-style notation.
*/
public void plus(Closure c) {
if (parent() == null) {
throw new UnsupportedOperationException("Adding sibling nodes to the root node is not supported");
}
appendNodes(c);
}代码示例来源：origin: me.tatarka.gradle/pom
/**
* Apply unique ids for all nodes.
* Remove '_' prefix from nodes (workaround for clashes with method names).
*
* @param root current node
* @param topId id to apply
*/
private static void prepareTree(Node root, String topId) {
root.attributes().put(NID_ATTR, topId);
String name = (String) root.name();
if (name.startsWith("_")) {
Node replace = new Node(null, name.substring(1));
replace.setValue(root.value());
root.replaceNode(replace);
}
int pos = 0;
if (!isLeaf(root)) {
List<Node> list = root.children();
for (int i = 0, size = list.size(); i < size; i++) {
pos += 1;
prepareTree(list.get(i), topId + "_" + pos);
}
}
}代码示例来源：origin: takari/polyglot-maven
private void merge(Properties props, Node node, String prefix) {
assert props != null;
assert node != null;
assert prefix != null;
String name = prefix + node.name();
Object value = node.value();
if (value instanceof String) {
props.setProperty(name, String.valueOf(value));
}
Map attrs = node.attributes();
for (Object key : attrs.keySet()) {
props.setProperty(name + "." + key, String.valueOf(attrs.get(key)));
}
for (Object child : node.children()) {
if (child instanceof Node) {
merge(props, (Node) child, name + ".");
}
}
}
}代码示例来源：origin: org.codehaus.groovy/groovy
/**
* Provides lookup of elements by non-namespaced name
*
* @param key the name (or shortcut key) of the node(s) of interest
* @return the nodes which match key
*/
public Object get(String key) {
if (key != null && key.charAt(0) == '@') {
String attributeName = key.substring(1);
return attributes().get(attributeName);
}
if ("..".equals(key)) {
return parent();
}
if ("*".equals(key)) {
return children();
}
if ("**".equals(key)) {
return depthFirst();
}
return getByName(key);
}代码示例来源：origin: org.codehaus.groovy/groovy
/**
* Provides lookup of elements by QName.
*
* @param name the QName of interest
* @return the nodes matching name
*/
public NodeList getAt(QName name) {
NodeList answer = new NodeList();
for (Object child : children()) {
if (child instanceof Node) {
Node childNode = (Node) child;
Object childNodeName = childNode.name();
if (name.matches(childNodeName)) {
answer.add(childNode);
}
}
}
return answer;
}代码示例来源：origin: org.codehaus.groovy/groovy
private static List getParentList(Node parent) {
Object parentValue = parent.value();
List parentList;
if (parentValue instanceof List) {
parentList = (List) parentValue;
} else {
parentList = new NodeList();
parentList.add(parentValue);
parent.setValue(parentList);
}
return parentList;
}代码示例来源：origin: diffplug/goomph
@SuppressWarnings("unchecked")
@Override
protected void applyOnce(Project project) {
extension = project.getExtensions().create(ResourceFiltersExtension.NAME, ResourceFiltersExtension.class);
EclipseProjectPlugin.modifyEclipseProject(project, eclipseModel -> {
eclipseModel.getProject().getFile().getXmlTransformer().addAction(xmlProvider -> {
Node rootNode = (Node) xmlProvider.asNode();
// remove the old filteredResources
List<Node> toRemove = ((List<Node>) rootNode.children()).stream()
.filter(Objects::nonNull)
.filter(node -> FILTERED_RESOURCES.equals(node.name()))
.collect(Collectors.toList());
toRemove.forEach(rootNode::remove);
// now add ours
Node filteredResources = rootNode.appendNode(FILTERED_RESOURCES);
for (ResourceFilter toExclude : extension.filters) {
toExclude.appendToFilteredResources(filteredResources);
}
});
});
}代码示例来源：origin: diffplug/goomph
/** Creates an XML node representing all the repos in this model. */
private Node sourceNode(Node parent) {
Node source = new Node(parent, "source");
@SuppressWarnings("unchecked")
BiConsumer<Iterable<String>, Consumer<Map<String, String>>> addRepos = (urls, repoAttributes) -> {
for (String url : urls) {
Node repository = source.appendNode("repository");
repository.attributes().put("location", url);
repoAttributes.accept(repository.attributes());
}
};
addRepos.accept(repos, Consumers.doNothing());
addRepos.accept(metadataRepos, repoAttr -> repoAttr.put("kind", "metadata"));
addRepos.accept(artifactRepos, repoAttr -> repoAttr.put("kind", "artifact"));
return source;
}代码示例来源：origin: diffplug/goomph
Iterator<Node> classpathEntries = classpathNode.children().iterator();
while (classpathEntries.hasNext()) {
Node entry = classpathEntries.next();
String path = (String) entry.attributes().get("path");
if (path != null && !path.isEmpty()) {
if (path.endsWith(".jar")) {
Node entry = classpathNode.appendNode("classpathentry");
entry.attributes().put("combineaccessrules", "true");
entry.attributes().put("exported", "true");
entry.attributes().put("kind", "src");
entry.attributes().put("path", "/" + projectDep);
};
classpathEntries = classpathNode.children().iterator();
while (classpathEntries.hasNext()) {
Node entry = classpathEntries.next();
String path = (String) entry.attributes().get("path");
if (path != null && path.endsWith(jar)) {
classpathEntries.remove();代码示例来源：origin: org.codehaus.groovy/groovy
@Override
public Object getAttribute(final Object object, final String attribute) {
Node n = (Node) object;
return n.get("@" + attribute);
}代码示例来源：origin: org.codehaus.groovy/groovy
@Override
public void setAttribute(final Object object, final String attribute, final Object newValue) {
for (Object o : (NodeList) object) {
Node node = (Node) o;
node.attributes().put(attribute, newValue);
}
}代码示例来源：origin: org.codehaus.groovy/groovy
public void print(Node node) {
out.printIndent();
printName(node);
Map attributes = node.attributes();
boolean hasAttributes = attributes != null && !attributes.isEmpty();
if (hasAttributes) {
printAttributes(attributes);
}
Object value = node.value();
if (value instanceof List) {
if (!hasAttributes) {
out.print("()");
}
printList((List) value);
} else {
if (value instanceof String) {
out.print("('");
out.print((String) value);
out.println("')");
} else {
out.println("()");
}
}
out.flush();
}代码示例来源：origin: groovy/groovy-core
protected void printName(Node node, NamespaceContext ctx, boolean begin, boolean preserve) {
if (node == null) {
throw new NullPointerException("Node must not be null.");
}
Object name = node.name();
if (name == null) {
throw new NullPointerException("Name must not be null.");
}
if (!preserve || begin) printLineBegin();
out.print("<");
if (!begin) {
out.print("/");
}
out.print(getName(node));
if (ctx != null) {
printNamespace(node, ctx);
}
if (begin) {
printNameAttributes(node.attributes(), ctx);
}
out.print(">");
if (!preserve || !begin) printLineEnd();
}代码示例来源：origin: groovy/groovy-core
protected boolean printSpecialNode(Node node) {
Object name = node.name();
if (name != null && name instanceof QName) {
QName qn = (QName) name;
// check uri and for legacy cases just check prefix name (not recommended)
if (qn.getNamespaceURI().equals("http://groovy.codehaus.org/2005/gsp") || qn.getPrefix().equals("gsp")) {
String s = qn.getLocalPart();
if (s.length() == 0) {
throw new RuntimeException("No local part after 'gsp:' given in node " + node);
}
printGroovyTag(s, node.text());
return true;
}
}
return false;
}
}代码示例来源：origin: org.codehaus.groovy/groovy
protected void printName(Node node) {
Object name = node.name();
if (name != null) {
out.print(name.toString());
} else {
out.print("null");
}
}代码示例来源：origin: org.codehaus.groovy/groovy
/**
* Converts the text of this GPathResult to a Double object.
*
* @return the GPathResult, converted to a <code>Double</code>
*/
public Double toDouble() {
if(textIsEmptyOrNull()){
return null;
}
return StringGroovyMethods.toDouble((CharSequence)text());
}内容来源于网络，如有侵权，请联系作者删除！
