/*******************************************************************************
* Copyright (c) 2010 Red Hat, Inc.
* Distributed under license by Red Hat, Inc. All rights reserved.
* This program is 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:
* Red Hat, Inc. - initial API and implementation
******************************************************************************/
package org.jboss.tools.cdi.seam.text.ext.hyperlink;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.IPath;
import org.eclipse.jdt.core.IJavaElement;
import org.eclipse.jdt.core.IMethod;
import org.eclipse.jdt.core.IType;
import org.eclipse.jdt.core.ITypeRoot;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.jdt.internal.ui.javaeditor.EditorUtility;
import org.eclipse.jdt.internal.ui.javaeditor.JavaEditor;
import org.eclipse.jdt.internal.ui.text.JavaWordFinder;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.IRegion;
import org.eclipse.jface.text.ITextViewer;
import org.eclipse.jface.text.hyperlink.AbstractHyperlinkDetector;
import org.eclipse.jface.text.hyperlink.IHyperlink;
import org.eclipse.ui.texteditor.ITextEditor;
import org.jboss.tools.cdi.core.CDICoreNature;
import org.jboss.tools.cdi.core.CDIUtil;
import org.jboss.tools.cdi.core.IBean;
import org.jboss.tools.cdi.core.IBeanMember;
import org.jboss.tools.cdi.core.ICDIProject;
import org.jboss.tools.cdi.core.IClassBean;
import org.jboss.tools.cdi.core.IInjectionPoint;
import org.jboss.tools.cdi.core.IInjectionPointParameter;
import org.jboss.tools.cdi.seam.solder.core.generic.GenericClassBean;
import org.jboss.tools.cdi.seam.text.ext.CDISeamExtPlugin;
public class GenericInjectedPointHyperlinkDetector extends AbstractHyperlinkDetector{
protected IRegion region;
protected IDocument document;
protected ITextViewer viewer;
public IHyperlink[] detectHyperlinks(ITextViewer textViewer,
IRegion region, boolean canShowMultipleHyperlinks) {
this.region = region;
this.viewer = textViewer;
ITextEditor textEditor= (ITextEditor)getAdapter(ITextEditor.class);
if (region == null || !canShowMultipleHyperlinks || !(textEditor instanceof JavaEditor))
return null;
int offset= region.getOffset();
ITypeRoot input = EditorUtility.getEditorInputJavaElement(textEditor, false);
if (input == null)
return null;
document= textEditor.getDocumentProvider().getDocument(textEditor.getEditorInput());
IRegion wordRegion= JavaWordFinder.findWord(document, offset);
if (wordRegion == null)
return null;
IProject project = null;
project = input.getJavaProject().getProject();
if(project == null)
return null;
CDICoreNature cdiNature = CDIUtil.getCDINatureWithProgress(project);
if(cdiNature == null)
return null;
IJavaElement[] elements = null;
try {
elements = input.codeSelect(wordRegion.getOffset(), wordRegion.getLength());
if (elements == null)
return null;
if(elements.length != 1)
return null;
ArrayList<IHyperlink> hyperlinks = new ArrayList<IHyperlink>();
int position = 0;
if(elements[0] instanceof IType){
elements[0] = input.getElementAt(wordRegion.getOffset());
if(elements[0] == null)
return null;
if(elements[0] instanceof IMethod){
position = offset;
}
}
findInjectedBeans(cdiNature, elements[0], position, input.getPath(), hyperlinks);
if (hyperlinks != null && !hyperlinks.isEmpty()) {
return (IHyperlink[])hyperlinks.toArray(new IHyperlink[hyperlinks.size()]);
}
} catch (JavaModelException jme) {
CDISeamExtPlugin.getDefault().logError(jme);
}
return null;
}
protected void findInjectedBeans(CDICoreNature nature, IJavaElement element, int offset, IPath path, ArrayList<IHyperlink> hyperlinks){
ICDIProject cdiProject = nature.getDelegate();
if(cdiProject == null) {
return;
}
Collection<IBean> beans = cdiProject.getBeans(path);
Set<IInjectionPoint> injectionPoints = findInjectionPoints(beans, element, offset);
if(injectionPoints.isEmpty()) {
return;
}
Set<IBean> resultBeanSet2 = new HashSet<IBean>();
for (IInjectionPoint injectionPoint: injectionPoints) {
Collection<IBean> resultBeanSet = cdiProject.getBeans(true, injectionPoint);
for (IBean b: resultBeanSet) {
IClassBean cb = null;
if(b instanceof IClassBean) {
cb = (IClassBean)b;
}
if(b instanceof IBeanMember) {
cb = ((IBeanMember)b).getClassBean();
}
if(cb instanceof GenericClassBean) {
GenericClassBean gcb = (GenericClassBean)cb;
IBean gpb = gcb.getGenericProducerBean();
if(gpb != null) {
resultBeanSet2.add(gpb);
}
} else if(injectionPoint.getClassBean() instanceof GenericClassBean
&& injectionPoint.isAnnotationPresent(((GenericClassBean)injectionPoint.getClassBean()).getVersion().getInjectGenericAnnotationTypeName())) {
resultBeanSet2.add(b);
}
}
}
List<IBean> resultBeanList = CDIUtil.sortBeans(resultBeanSet2);
if(resultBeanList.size() == 1) {
hyperlinks.add(new GenericInjectedPointHyperlink(region, resultBeanList.get(0), document));
} else if(resultBeanList.size() > 0) {
hyperlinks.add(new GenericInjectedPointListHyperlink(region, resultBeanList, viewer, document));
}
}
public static Set<IInjectionPoint> findInjectionPoints(Collection<IBean> beans, IJavaElement element, int position) {
Set<IInjectionPoint> results = new HashSet<IInjectionPoint>();
for (IBean bean : beans) {
Collection<IInjectionPoint> injectionPoints = bean.getInjectionPoints();
for (IInjectionPoint iPoint : injectionPoints) {
if(element != null && iPoint.isDeclaredFor(element)) {
results.add(iPoint);
} else if(iPoint instanceof IInjectionPointParameter && position != 0) {
if(iPoint.getStartPosition() <= position && (iPoint.getStartPosition()+iPoint.getLength()) >= position)
results.add(iPoint);
}
}
}
return results;
}
}