/*******************************************************************************
* Copyright (c) 2011 - 2013 Spring IDE Developers
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Spring IDE Developers - initial API and implementation
*******************************************************************************/
package org.springframework.ide.eclipse.beans.ui.editor.hyperlink.bean;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
import org.eclipse.core.resources.IFile;
import org.eclipse.jdt.core.IMethod;
import org.eclipse.jdt.core.IType;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.IRegion;
import org.eclipse.jface.text.ITextViewer;
import org.eclipse.jface.text.hyperlink.IHyperlink;
import org.springframework.ide.eclipse.beans.core.BeansCorePlugin;
import org.springframework.ide.eclipse.beans.core.internal.model.BeansModelUtils;
import org.springframework.ide.eclipse.beans.core.model.IBean;
import org.springframework.ide.eclipse.beans.core.model.IBeansConfig;
import org.springframework.ide.eclipse.beans.ui.editor.hyperlink.IHyperlinkCalculator;
import org.springframework.ide.eclipse.beans.ui.editor.hyperlink.JavaElementHyperlink;
import org.springframework.ide.eclipse.beans.ui.editor.util.BeansEditorUtils;
import org.springframework.ide.eclipse.core.java.Introspector;
import org.springframework.ide.eclipse.core.java.JdtUtils;
import org.springframework.ide.eclipse.core.model.IModelElement;
import org.springframework.util.StringUtils;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
/**
* {@link IHyperlinkCalculator} for the constructor-arg name
* @author Leo Dos Santos
* @since 2.8.0
*/
public class ConstructorArgNameHyperlinkCalculator implements IHyperlinkCalculator {
/**
* {@inheritDoc}
*/
public IHyperlink createHyperlink(String name, String target, Node node,
Node parentNode, IDocument document, ITextViewer textViewer,
IRegion hyperlinkRegion, IRegion cursor) {
String parentName = null;
if (parentNode != null) {
parentName = parentNode.getNodeName();
}
List<String> propertyPaths = new ArrayList<String>();
hyperlinkRegion = BeansEditorUtils.extractPropertyPathFromCursorPosition(hyperlinkRegion,
cursor, target, propertyPaths);
if ("bean".equals(parentName) && StringUtils.hasText(target)) {
IFile file = BeansEditorUtils.getFile(document);
String className = BeansEditorUtils.getClassNameForBean(file, node.getOwnerDocument(), parentNode);
if (file != null && file.exists()) {
IType type = JdtUtils.getJavaType(file.getProject(), className);
if (type != null) {
IBeansConfig config = BeansCorePlugin.getModel().getConfig(file);
if (config != null && parentNode instanceof Element) {
IModelElement element = BeansModelUtils.getModelElement((Element) parentNode, config);
int argIndex = getArgumentIndex(node);
if (argIndex >= 0) {
if (element instanceof IBean) {
IBean bean = (IBean) element;
int count = bean.getConstructorArguments().size();
if (count > 0) {
try {
Set<IMethod> methods = Introspector.getConstructors(type, count, false);
Iterator<IMethod> iter = methods.iterator();
while (iter.hasNext()) {
IMethod candidate = iter.next();
if (target.equalsIgnoreCase(candidate.getParameterNames()[argIndex])) {
// return new JavaElementHyperlink(hyperlinkRegion, candidate.getParameters()[argIndex]);
// TODO: just a temporary workaround for making this Eclipse 3.6 compatible
return new JavaElementHyperlink(hyperlinkRegion, candidate);
}
}
} catch (JavaModelException e) {
// do nothing
}
}
}
}
}
}
}
}
return null;
}
private int getArgumentIndex(Node arg) {
if (arg instanceof Element && "constructor-arg".equals(arg.getNodeName())) {
Element parent = (Element) arg.getParentNode();
NodeList list = parent.getElementsByTagName("constructor-arg");
for (int i = 0; i < list.getLength(); i++) {
Node candidate = list.item(i);
if (arg.equals(candidate)) {
return i;
}
}
}
return -1;
}
}