/*******************************************************************************
* Copyright (c) 2006 Oracle Corporation.
* 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:
* Gerry Kessler/Oracle - initial API and implementation
* Xiaonan Jiang/IBM - https://bugs.eclipse.org/bugs/show_bug.cgi?id=308337
*
********************************************************************************/
package org.eclipse.jst.jsf.taglibprocessing.attributevalues;
import java.net.URL;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.runtime.FileLocator;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.Path;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jst.jsf.context.resolver.structureddocument.IStructuredDocumentContextResolverFactory;
import org.eclipse.jst.jsf.context.resolver.structureddocument.IWorkspaceContextResolver;
import org.eclipse.jst.jsf.core.JSFVersion;
import org.eclipse.jst.jsf.core.jsfappconfig.internal.JSFAppConfigManagerFactory;
import org.eclipse.jst.jsf.facesconfig.FacesConfigPlugin;
import org.eclipse.jst.jsf.facesconfig.emf.DisplayNameType;
import org.eclipse.jst.jsf.facesconfig.emf.NavigationCaseType;
import org.eclipse.jst.jsf.facesconfig.emf.NavigationRuleType;
import org.eclipse.jst.jsf.metadataprocessors.features.IPossibleValues;
import org.eclipse.jst.jsf.metadataprocessors.features.IValidationMessage;
import org.eclipse.jst.jsf.metadataprocessors.features.PossibleValue;
import org.eclipse.jst.jsf.metadataprocessors.features.ValidationMessage;
import org.eclipse.osgi.util.NLS;
import org.eclipse.wst.common.componentcore.ComponentCore;
import org.eclipse.wst.common.componentcore.resources.IVirtualFile;
import org.eclipse.wst.common.componentcore.resources.IVirtualFolder;
import org.osgi.framework.Bundle;
/**
* Meta-data processing type representing an "action" attribute
*
* <p><b>Provisional API - subject to change</b></p>
* @author Gerry Kessler - Oracle
*/
public class ActionType extends MethodBindingType implements IPossibleValues{
/**
* Image to use if metadata defined image cannot be created
*/
protected static final ImageDescriptor MISSING_IMAGE = ImageDescriptor.getMissingImageDescriptor();
private static final String IMAGE_NAME = "/icons/full/obj16/NavigationCaseType.gif"; //$NON-NLS-1$
private ImageDescriptor imageDescriptor;
/* (non-Javadoc)
* @see org.eclipse.jst.jsf.taglibprocessing.attributevalues.MethodBindingType#isValidValue(java.lang.String)
*/
public boolean isValidValue(String value){
if (value == null || (value != null && value.length() == 0)) {
IValidationMessage msg = new ValidationMessage(Messages.ActionType_invalid_empty_value);
getValidationMessages().add(msg);
return false;
}
//any other value should be one of the possible values
//optimize
IWorkspaceContextResolver wr = IStructuredDocumentContextResolverFactory.INSTANCE.getWorkspaceContextResolver(getStructuredDocumentContext());
if (wr == null)
return true;//shouldn't get here
//in case that this is not JSF faceted or missing configs, need to pass
if (JSFAppConfigManagerFactory.getJSFAppConfigManagerInstance(wr.getProject()) == null)
return true;
IFile jsp = (IFile)wr.getResource();
List<NavigationRuleType> rules = JSFAppConfigManagerFactory.getJSFAppConfigManagerInstance(wr.getProject()).getNavigationRulesForPage(jsp);
for (final NavigationRuleType rule : rules) {
for (Iterator cases=rule.getNavigationCase().iterator();cases.hasNext();) {
NavigationCaseType navCase = (NavigationCaseType)cases.next();
if (navCase.getFromOutcome() != null && navCase.getFromOutcome().getTextContent() != null &&
value.equals(navCase.getFromOutcome().getTextContent().trim()))
return true;
}
}
if (JSFVersion.valueOfProject(jsp.getProject()).compareTo(JSFVersion.V2_0) >= 0) {
int index = value.indexOf('?');
if (index != -1) {
value = value.substring(0, index);
}
if (value != null && value.length() > 1) {
IVirtualFolder webRoot = ComponentCore.createComponent(jsp.getProject()).getRootFolder();
if (value.charAt(0) == '/') {
IVirtualFile file = webRoot.getFile(new Path(value));
if (file.exists()) {
return true;
}
} else {
IPath webContentPath = webRoot.getUnderlyingFolder().getFullPath();
IPath filePath = jsp.getFullPath();
if (filePath.matchingFirstSegments(webContentPath) == webContentPath.segmentCount()) {
String extension = filePath.getFileExtension();
filePath = filePath.removeFirstSegments(webContentPath.segmentCount());
filePath = filePath.removeLastSegments(1);
filePath = filePath.append(value);
if (filePath.getFileExtension() == null && extension != null) {
filePath = filePath.addFileExtension(extension);
}
IVirtualFile file = webRoot.getFile(filePath);
if (file.exists()) {
return true;
}
}
}
}
}
IValidationMessage msg = new ValidationMessage(Messages.ActionType_invalid_value);
getValidationMessages().add(msg);
return false;
}
/* (non-Javadoc)
* @see org.eclipse.jst.jsf.metadataprocessors.features.IPossibleValues#getPossibleValues()
*/
public List getPossibleValues() {
final List<NavigationRuleType> ret = new ArrayList<NavigationRuleType>();
if (getStructuredDocumentContext() == null)
return ret;
final IWorkspaceContextResolver wr = IStructuredDocumentContextResolverFactory.INSTANCE.getWorkspaceContextResolver(getStructuredDocumentContext());
if (wr != null && JSFAppConfigManagerFactory.getJSFAppConfigManagerInstance(wr.getProject()) != null) {//may not be JSF faceted project or know faces-config){
IFile jsp = (IFile)wr.getResource();
List<NavigationRuleType> rules = JSFAppConfigManagerFactory.getJSFAppConfigManagerInstance(wr.getProject()).getNavigationRulesForPage(jsp);
for (final NavigationRuleType rule : rules) {
if (rule != null)
ret.addAll(createProposals(rule));
}
}
return ret;
}
private List createProposals(NavigationRuleType rule) {
List ret = new ArrayList();
List cases = rule.getNavigationCase();
for (Iterator it=cases.iterator();it.hasNext();) {
NavigationCaseType navCase = (NavigationCaseType)it.next();
PossibleValue pv = createProposal(rule, navCase);
if (pv != null)
ret.add(pv);
}
return ret;
}
private PossibleValue createProposal(NavigationRuleType rule, NavigationCaseType navCase) {
PossibleValue pv = null;
String value = null;
String ruleDisp = null;
String navDisplay = null;
String navAction = null;
String toViewId = null;
if (navCase.getFromOutcome() != null)
value = navCase.getFromOutcome().getTextContent();
if (navCase.getToViewId()!= null)
toViewId = navCase.getToViewId().getTextContent();
if (rule.getFromViewId() != null)
ruleDisp = rule.getFromViewId().getTextContent();
if (navCase.getDisplayName() != null
&& navCase.getDisplayName().size() > 0) {
navDisplay = ((DisplayNameType) navCase
.getDisplayName().get(0)).getTextContent();
}
if (navCase.getFromAction() != null) {
navAction= navCase.getFromAction().getTextContent();
}
if (navDisplay == null || navDisplay.trim().equals("")) //$NON-NLS-1$
navDisplay = NLS.bind(Messages.ActionType_navcase_display, new String[]{value, toViewId});
if (value != null){
pv = new PossibleValue(value, navDisplay);
pv.setIcon(getNavCaseImageDescriptor());
pv.setAdditionalInformation("from-outcome: "+value //$NON-NLS-1$
+ "<br>to-view-id: " + toViewId //$NON-NLS-1$
+ "<br>from-view-id: " + ruleDisp //$NON-NLS-1$
+ "<br>from-action: " + (navAction == null ? "null" : navAction)); //$NON-NLS-1$ //$NON-NLS-2$
}
return pv;
}
private ImageDescriptor getNavCaseImageDescriptor() {
ImageDescriptor ret = super.getImage();
if (ret != null && ret != MISSING_IMAGE)
return ret;
if (imageDescriptor == null){
imageDescriptor = getImageDesc(IMAGE_NAME);
}
return imageDescriptor;
}
private ImageDescriptor getImageDesc(String img)
{
Bundle bundle = FacesConfigPlugin.getPlugin().getBundle();
URL url = FileLocator.find(bundle, new Path(img), null);
ImageDescriptor desc = ImageDescriptor.createFromURL(url);
if (desc == MISSING_IMAGE) {
return null;
}
return desc;
}
}