/*******************************************************************************
* Copyright (c) 2007, 2009 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.webflow.mylyn.core;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResource;
import org.eclipse.mylyn.context.core.AbstractContextStructureBridge;
import org.eclipse.mylyn.context.core.ContextCore;
import org.eclipse.mylyn.context.core.IInteractionElement;
import org.eclipse.mylyn.internal.resources.ui.ResourceStructureBridge;
import org.springframework.ide.eclipse.core.SpringCore;
import org.springframework.ide.eclipse.core.model.IModelElement;
import org.springframework.ide.eclipse.core.model.ISpringProject;
import org.springframework.ide.eclipse.webflow.core.Activator;
import org.springframework.ide.eclipse.webflow.core.internal.model.WebflowModelUtils;
import org.springframework.ide.eclipse.webflow.core.model.IWebflowConfig;
import org.springframework.ide.eclipse.webflow.core.model.IWebflowModel;
import org.springframework.ide.eclipse.webflow.core.model.IWebflowModelElement;
import org.springframework.ide.eclipse.webflow.core.model.IWebflowProject;
/**
* {@link AbstractContextStructureBridge} extension that integrates the {@link IWebflowModel} with
* Mylyn.
* @author Christian Dupuis
* @since 2.0
*/
@SuppressWarnings("restriction")
public class WebflowContextStructureBridge extends AbstractContextStructureBridge {
public static final String CONTENT_TYPE = "spring/webflow";
@Override
public boolean acceptsObject(Object object) {
return (object instanceof IWebflowModelElement || object instanceof IWebflowProject
|| object instanceof ISpringProject || (object instanceof IResource && WebflowModelUtils
.isWebflowConfig((IResource) object)));
}
@Override
public boolean canBeLandmark(String handle) {
return true;
}
@Override
public boolean canFilter(Object obj) {
if (obj instanceof IModelElement) {
IModelElement modelElement = (IModelElement) obj;
IModelElement[] children = modelElement.getElementChildren();
for (IModelElement child : children) {
IInteractionElement node = ContextCore.getContextManager().getElement(
getHandleIdentifier(child));
if (node != null && node.getInterest().isInteresting()) {
return false;
}
}
if (modelElement instanceof ISpringProject) {
IProject project = ((ISpringProject) modelElement).getProject();
IWebflowProject webflowProject = Activator.getModel().getProject(project);
return canFilter(webflowProject);
}
IInteractionElement node = ContextCore.getContextManager().getElement(
getHandleIdentifier(obj));
if (node != null && node.getInterest().isInteresting()) {
return false;
}
}
else if ((obj instanceof IFile && WebflowModelUtils.isWebflowConfig((IResource) obj))) {
return canFilter(WebflowModelUtils.getWebflowConfig((IFile) obj));
}
AbstractContextStructureBridge parentBridge = ContextCore
.getStructureBridge(parentContentType);
if (parentBridge != null && !parentBridge.canFilter(obj)) {
return false;
}
return true;
}
@Override
public List<String> getChildHandles(String handle) {
Object obj = getObjectForHandle(handle);
if (obj != null && obj instanceof IModelElement) {
List<String> childHandles = new ArrayList<String>();
IModelElement[] children = ((IModelElement) obj).getElementChildren();
for (IModelElement child : children) {
childHandles.add(child.getElementID());
}
return childHandles;
}
return Collections.emptyList();
}
@Override
public String getContentType() {
return CONTENT_TYPE;
}
@Override
public String getContentType(String handle) {
Object obj = getObjectForHandle(handle);
if (obj instanceof IModelElement) {
return CONTENT_TYPE;
}
else {
return ContextCore.CONTENT_TYPE_RESOURCE;
}
}
@Override
public String getHandleIdentifier(Object obj) {
if (obj instanceof IModelElement) {
return ((IModelElement) obj).getElementID();
}
else if (obj instanceof IFile && WebflowModelUtils.isWebflowConfig((IFile) obj)) {
return WebflowModelUtils.getWebflowConfig((IFile) obj).getElementID();
}
return null;
}
@Override
public String getLabel(Object obj) {
if (obj instanceof IModelElement) {
return ((IModelElement) obj).getElementName();
}
else if (obj instanceof IFile && WebflowModelUtils.isWebflowConfig((IFile) obj)) {
return WebflowModelUtils.getWebflowConfig((IFile) obj).getElementName();
}
return null;
}
@Override
public Object getObjectForHandle(String handle) {
Object obj = null;
if (handle != null) {
obj = Activator.getModel().getElement(handle);
if (obj != null) {
return obj;
}
obj = SpringCore.getModel().getElement(handle);
if (obj != null) {
return obj;
}
}
AbstractContextStructureBridge parentBridge = ContextCore
.getStructureBridge(parentContentType);
if (parentBridge != null) {
obj = parentBridge.getObjectForHandle(handle);
}
return null;
}
@Override
public String getParentHandle(String handle) {
Object obj = getObjectForHandle(handle);
if (obj instanceof IWebflowProject) {
ISpringProject project = SpringCore.getModel().getProject(
((IWebflowProject) obj).getProject());
if (project != null) {
return project.getElementID();
}
}
else if (obj instanceof ISpringProject) {
AbstractContextStructureBridge parentBridge = ContextCore
.getStructureBridge(parentContentType);
if (parentBridge != null && parentBridge instanceof ResourceStructureBridge) {
return parentBridge.getHandleIdentifier(((ISpringProject) obj).getProject());
}
}
else if (obj != null && obj instanceof IModelElement) {
IModelElement parent = ((IModelElement) obj).getElementParent();
if (parent != null) {
return parent.getElementID();
}
}
else {
AbstractContextStructureBridge parentBridge = ContextCore
.getStructureBridge(parentContentType);
if (parentBridge != null && parentBridge instanceof ResourceStructureBridge) {
return parentBridge.getParentHandle(handle);
}
}
return null;
}
@Override
public boolean isDocument(String handle) {
Object obj = getObjectForHandle(handle);
if (obj != null && obj instanceof IWebflowConfig) {
return true;
}
return false;
}
@Override
public String getHandleForOffsetInObject(Object arg0, int arg1) {
return null;
}
}