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org.codehaus.enunciate.modules.docs.GenerateExampleXmlMethod Maven / Gradle / Ivy
The Enunciate docs module generates the Web service interface documentation.
/**
* Copyright 2011 Intellectual Reserve, Inc.
*
* 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 org.codehaus.enunciate.modules.docs;
import com.sun.mirror.declaration.ClassDeclaration;
import com.sun.mirror.declaration.TypeDeclaration;
import freemarker.ext.beans.BeansWrapper;
import freemarker.template.TemplateMethodModelEx;
import freemarker.template.TemplateModel;
import freemarker.template.TemplateModelException;
import net.sf.jelly.apt.freemarker.FreemarkerModel;
import org.codehaus.enunciate.apt.EnunciateFreemarkerModel;
import org.codehaus.enunciate.contract.jaxb.*;
import org.codehaus.enunciate.contract.jaxb.types.MapXmlType;
import org.codehaus.enunciate.contract.jaxb.types.XmlClassType;
import org.codehaus.enunciate.contract.jaxb.types.XmlType;
import org.codehaus.enunciate.doc.DocumentationExample;
import org.jdom.Comment;
import org.jdom.Document;
import org.jdom.Namespace;
import org.jdom.Text;
import org.jdom.output.XMLOutputter;
import javax.xml.namespace.QName;
import java.io.StringWriter;
import java.util.List;
import java.util.Stack;
/**
* @author Ryan Heaton
*/
public class GenerateExampleXmlMethod implements TemplateMethodModelEx {
/**
* Stack used for maintaining the list of type definitions for which we are currently generating example xml/json. Used to
* prevent infinite recursion for circular references.
*/
private static final ThreadLocal> TYPE_DEF_STACK = new ThreadLocal>();
private final String defaultNamespace;
private final EnunciateFreemarkerModel model;
public GenerateExampleXmlMethod(String defaultNamespace, EnunciateFreemarkerModel model) {
this.defaultNamespace = defaultNamespace;
this.model = model;
}
public Object exec(List list) throws TemplateModelException {
if (list.size() < 1) {
throw new TemplateModelException("The generateExampleJson method must have a root element as a parameter.");
}
Object object = BeansWrapper.getDefaultInstance().unwrap((TemplateModel) list.get(0));
String namespace;
String name;
TypeDefinition type;
String defaultNs = this.defaultNamespace;
int maxDepth = Integer.MAX_VALUE;
if (object instanceof RootElementDeclaration) {
RootElementDeclaration rootEl = (RootElementDeclaration) object;
namespace = rootEl.getNamespace();
name = rootEl.getName();
type = rootEl.getTypeDefinition();
}
else if (object instanceof LocalElementDeclaration) {
LocalElementDeclaration rootEl = (LocalElementDeclaration) object;
namespace = rootEl.getNamespace();
name = rootEl.getName();
TypeDeclaration elementTypeDeclaration = rootEl.getElementTypeDeclaration();
if (elementTypeDeclaration instanceof ClassDeclaration) {
type = model.findTypeDefinition((ClassDeclaration) elementTypeDeclaration);
}
else {
type = null;
}
}
else if (object instanceof TypeDefinition) {
type = (TypeDefinition) object;
namespace = type.getNamespace();
name = type.getName();
maxDepth = 2;
}
else {
throw new TemplateModelException("The generateExampleJson method must have a root element as a parameter.");
}
try {
String prefix = namespace == null ? null : defaultNs == null ? "" : ((EnunciateFreemarkerModel) FreemarkerModel.get()).getNamespacesToPrefixes().get(namespace);
Namespace jdomNS;
if (Namespace.XML_NAMESPACE.getURI().equals(namespace)) {
jdomNS = Namespace.XML_NAMESPACE;
}
else if (namespace == null || "".equals(namespace)) {
jdomNS = Namespace.NO_NAMESPACE;
}
else {
jdomNS = Namespace.getNamespace(prefix, namespace);
}
org.jdom.Element rootElement = new org.jdom.Element(name, jdomNS);
if (defaultNs != null) {
rootElement.addNamespaceDeclaration(Namespace.getNamespace("", defaultNs));
}
else {
defaultNs = namespace;
}
generateExampleXml(type, rootElement, defaultNs, maxDepth);
Document document = new Document(rootElement);
XMLOutputter out = new XMLOutputter(org.jdom.output.Format.getPrettyFormat());
StringWriter sw = new StringWriter();
out.output(document, sw);
sw.flush();
return sw.toString();
}
catch (Exception e) {
throw new RuntimeException(e);
}
}
protected void generateExampleXml(TypeDefinition type, org.jdom.Element parent, String defaultNs, int maxDepth) {
if (TYPE_DEF_STACK.get() == null) {
TYPE_DEF_STACK.set(new Stack());
}
if (type != null) {
if (TYPE_DEF_STACK.get().contains(type.getQualifiedName())) {
parent.addContent(new Comment("..."));
}
else if (type instanceof EnumTypeDefinition) {
parent.addContent(new org.jdom.Text("..."));
}
else {
TYPE_DEF_STACK.get().push(type.getQualifiedName());
for (Attribute attribute : type.getAttributes()) {
generateExampleXml(attribute, parent, defaultNs);
}
if (type.getValue() != null) {
generateExampleXml(type.getValue(), parent);
}
else {
for (Element element : type.getElements()) {
generateExampleXml(element, parent, defaultNs, maxDepth);
}
}
TYPE_DEF_STACK.get().pop();
}
XmlType baseType = type.getBaseType();
if (baseType instanceof XmlClassType) {
TypeDefinition typeDef = ((XmlClassType) baseType).getTypeDefinition();
if (typeDef != null) {
generateExampleXml(typeDef, parent, defaultNs, maxDepth);
}
}
}
else {
parent.addContent(new Comment("..."));
}
}
protected void generateExampleXml(Attribute attribute, org.jdom.Element parent, String defaultNs) {
DocumentationExample exampleInfo = attribute.getAnnotation(DocumentationExample.class);
if (exampleInfo == null || !exampleInfo.exclude()) {
String namespace = attribute.getNamespace();
String prefix = namespace == null ? null : ((EnunciateFreemarkerModel) FreemarkerModel.get()).getNamespacesToPrefixes().get(namespace);
String exampleValue = exampleInfo == null || "##default".equals(exampleInfo.value()) ? "..." : exampleInfo.value();
Namespace jdomNS;
if (Namespace.XML_NAMESPACE.getURI().equals(namespace)) {
jdomNS = Namespace.XML_NAMESPACE;
}
else if (namespace == null || "".equals(namespace) || namespace.equals(defaultNs)) {
jdomNS = Namespace.NO_NAMESPACE;
}
else {
jdomNS = Namespace.getNamespace(prefix, namespace);
}
org.jdom.Attribute attr = new org.jdom.Attribute(attribute.getName(), exampleValue, jdomNS);
parent.setAttribute(attr);
}
}
protected void generateExampleXml(Value value, org.jdom.Element parent) {
DocumentationExample exampleInfo = value.getAnnotation(DocumentationExample.class);
if (exampleInfo == null || !exampleInfo.exclude()) {
parent.setContent(new Text(exampleInfo == null || "##default".equals(exampleInfo.value()) ? "..." : exampleInfo.value()));
}
}
protected void generateExampleXml(Element element, org.jdom.Element parent, String defaultNs, int maxDepth) {
if (TYPE_DEF_STACK.get().size() > maxDepth) {
return;
}
DocumentationExample exampleInfo = element.getAnnotation(DocumentationExample.class);
if (exampleInfo == null || !exampleInfo.exclude()) {
if (element.isWrapped()) {
String namespace = element.getWrapperNamespace();
String prefix = namespace == null ? null : ((EnunciateFreemarkerModel) FreemarkerModel.get()).getNamespacesToPrefixes().get(namespace);
Namespace jdomNS;
if (Namespace.XML_NAMESPACE.getURI().equals(namespace)) {
jdomNS = Namespace.XML_NAMESPACE;
}
else if (namespace == null || "".equals(namespace)) {
jdomNS = Namespace.NO_NAMESPACE;
}
else if (namespace.equals(defaultNs)) {
jdomNS = Namespace.getNamespace("", namespace);
}
else {
jdomNS = Namespace.getNamespace(prefix, namespace);
}
org.jdom.Element el = new org.jdom.Element(element.getWrapperName(), jdomNS);
parent.addContent(el);
parent = el;
}
for (Element choice : element.getChoices()) {
QName ref = choice.getRef();
int iterations = "1".equals(choice.getMaxOccurs()) ? 1 : 2;
for (int i = 0; i < iterations; i++) {
if (ref == null) {
String namespace = choice.getNamespace();
String prefix = namespace == null ? null : ((EnunciateFreemarkerModel) FreemarkerModel.get()).getNamespacesToPrefixes().get(namespace);
Namespace jdomNS;
if (Namespace.XML_NAMESPACE.getURI().equals(namespace)) {
jdomNS = Namespace.XML_NAMESPACE;
}
else if (namespace == null || "".equals(namespace)) {
jdomNS = Namespace.NO_NAMESPACE;
}
else if (namespace.equals(defaultNs)) {
jdomNS = Namespace.getNamespace("", namespace);
}
else {
jdomNS = Namespace.getNamespace(prefix, namespace);
}
org.jdom.Element el = new org.jdom.Element(choice.getName(), jdomNS);
String exampleValue = exampleInfo == null || "##default".equals(exampleInfo.value()) ? "..." : exampleInfo.value();
XmlType xmlType = choice.getBaseType();
if (i == 0) {
generateExampleXml(xmlType, el, exampleValue, defaultNs, maxDepth);
}
else {
if (xmlType instanceof XmlClassType) {
TypeDefinition typedef = ((XmlClassType) xmlType).getTypeDefinition();
for (Attribute attribute : typedef.getAttributes()) {
generateExampleXml(attribute, el, defaultNs);
}
if (typedef.getValue() != null) {
el.addContent(new Text("..."));
}
else {
el.addContent(new Comment("..."));
}
}
else {
el.addContent(new Text("..."));
}
}
parent.addContent(el);
}
else {
String namespace = ref.getNamespaceURI();
String name = ref.getLocalPart();
String prefix = namespace == null ? null : ((EnunciateFreemarkerModel) FreemarkerModel.get()).getNamespacesToPrefixes().get(namespace);
Namespace jdomNS;
if (Namespace.XML_NAMESPACE.getURI().equals(namespace)) {
jdomNS = Namespace.XML_NAMESPACE;
}
else if (namespace == null || "".equals(namespace)) {
jdomNS = Namespace.NO_NAMESPACE;
}
else if (namespace.equals(defaultNs)) {
jdomNS = Namespace.getNamespace("", namespace);
}
else {
jdomNS = Namespace.getNamespace(prefix, namespace);
}
org.jdom.Element el = new org.jdom.Element(name, jdomNS);
el.addContent(new Text("..."));
parent.addContent(el);
}
}
if (iterations > 1) {
parent.addContent(new Comment("...more \"" + (ref == null ? choice.getName() : ref.getLocalPart()) + "\" elements..."));
}
}
}
}
public void generateExampleXml(XmlType type, org.jdom.Element parent, String example, String defaultNs, int maxDepth) {
if (type instanceof XmlClassType) {
generateExampleXml(((XmlClassType) type).getTypeDefinition(), parent, defaultNs, maxDepth);
}
else if (type instanceof MapXmlType) {
XmlType keyType = ((MapXmlType) type).getKeyType();
XmlType valueType = ((MapXmlType) type).getValueType();
for (int i = 0; i < 2; i++) {
org.jdom.Element entry = new org.jdom.Element("entry", parent.getNamespacePrefix(), parent.getNamespaceURI());
org.jdom.Element key = new org.jdom.Element("key", parent.getNamespacePrefix(), parent.getNamespaceURI());
org.jdom.Element value = new org.jdom.Element("value", parent.getNamespacePrefix(), parent.getNamespaceURI());
if (i == 0) {
generateExampleXml(keyType, key, null, defaultNs, maxDepth);
}
else {
key.addContent(new Comment("(another '" + keyType.getName() + "' type)"));
}
entry.addContent(key);
if (i == 0) {
generateExampleXml(valueType, value, null, defaultNs, maxDepth);
}
else {
value.addContent(new Comment("(another '" + valueType.getName() + "' type)"));
}
entry.addContent(value);
parent.addContent(entry);
}
parent.addContent(new org.jdom.Comment("...more entries..."));
}
else {
parent.addContent(type.isSimple() ? new org.jdom.Text(example == null ? "..." : example) : new org.jdom.Comment("custom xml"));
}
}
}
