| //------------------------------------------------------------------------------ |
| // Copyright (c) 2005, 2006 IBM Corporation and others. |
| // 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: |
| // IBM Corporation - initial implementation |
| //------------------------------------------------------------------------------ |
| package org.eclipse.epf.persistence; |
| |
| import java.util.Iterator; |
| import java.util.List; |
| |
| import org.eclipse.emf.common.CommonPlugin; |
| import org.eclipse.emf.common.util.URI; |
| import org.eclipse.emf.common.util.UniqueEList; |
| import org.eclipse.emf.ecore.EObject; |
| import org.eclipse.emf.ecore.EReference; |
| import org.eclipse.emf.ecore.EStructuralFeature; |
| import org.eclipse.emf.ecore.InternalEObject; |
| import org.eclipse.emf.ecore.resource.Resource; |
| import org.eclipse.emf.ecore.resource.ResourceSet; |
| import org.eclipse.emf.ecore.util.InternalEList; |
| import org.eclipse.emf.ecore.xmi.XMLResource; |
| import org.eclipse.emf.ecore.xmi.impl.XMIHelperImpl; |
| import org.eclipse.epf.resourcemanager.ResourceDescriptor; |
| import org.eclipse.epf.uma.MethodConfiguration; |
| import org.eclipse.epf.uma.ecore.impl.MultiResourceEObject; |
| |
| /** |
| * XMLHelper implementation for library XMI persistence |
| * |
| * @author Phong Nguyen Le |
| * @since 1.0 |
| */ |
| public class MultiFileXMIHelperImpl extends XMIHelperImpl { |
| |
| /** |
| * Platform-specific line separator. |
| */ |
| private static final String LINE_SEP = System.getProperty("line.separator"); //$NON-NLS-1$ |
| |
| protected boolean logError = true; |
| |
| protected List sameDocReferences; |
| |
| private boolean discardUnresolvedRef; |
| |
| /** |
| * Creates a new instance. |
| */ |
| public MultiFileXMIHelperImpl(MultiFileXMIResourceImpl xmiRes) { |
| super(xmiRes); |
| sameDocReferences = new UniqueEList(); |
| Boolean b = (Boolean) ((MultiFileResourceSetImpl) xmiRes |
| .getResourceSet()).getDefaultSaveOptions().get( |
| MultiFileXMISaveImpl.DISCARD_UNRESOLVED_REFERENCES); |
| discardUnresolvedRef = b != null ? b.booleanValue() : false; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.emf.ecore.xmi.impl.XMLHelperImpl#setResource(org.eclipse.emf.ecore.xmi.XMLResource) |
| */ |
| public void setResource(XMLResource resource) { |
| super.setResource(resource); |
| if(resource instanceof MultiFileXMIResourceImpl) { |
| resourceURI = ((MultiFileXMIResourceImpl)resource).getFinalURI(); |
| deresolve = resourceURI != null && !resourceURI.isRelative() && resourceURI.isHierarchical(); |
| } |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.emf.ecore.xmi.impl.XMLHelperImpl#getHREF(org.eclipse.emf.ecore.EObject) |
| */ |
| public String getHREF(EObject obj) { |
| if (discardUnresolvedRef) { |
| // remove unresolved references |
| // |
| if (obj instanceof MultiResourceEObject |
| && !((MultiResourceEObject) obj).isValid()) { |
| return null; |
| } |
| } |
| |
| if (obj instanceof MultiResourceEObject) { |
| InternalEObject o = (InternalEObject) obj; |
| |
| URI objectURI = o.eProxyURI(); |
| if (objectURI == null) { |
| Resource otherResource = obj.eResource(); |
| if (otherResource == null) { |
| objectURI = handleDanglingHREF(obj); |
| if (objectURI == null) { |
| return null; |
| } |
| } else if (resource == otherResource) { |
| return "#" + resource.getURIFragment(obj); //$NON-NLS-1$ |
| } else { |
| if (obj instanceof MethodConfiguration) { |
| // Special handling for MethodConfiguration. |
| // See |
| // org.eclipse.epf.persistence.MultiFileResourceSetImpl.loadConfigurations() |
| // |
| EObject lib = obj.eContainer(); |
| if (lib != null) { |
| otherResource = lib.eResource(); |
| } else { |
| return null; |
| } |
| } |
| if (otherResource != null) { |
| ResourceSet resourceSet = otherResource.getResourceSet(); |
| if(resourceSet instanceof MultiFileResourceSetImpl |
| && ((MultiFileResourceSetImpl)resourceSet).getResourceManager() == null) { |
| objectURI = MultiFileSaveUtil.getFinalURI(otherResource).appendFragment(getURIFragment(otherResource, obj)); |
| return deresolve(objectURI).toString(); |
| } |
| ResourceDescriptor resDesc = MultiFileSaveUtil |
| .getResourceDescriptor(otherResource); |
| if (resDesc != null) { |
| objectURI = MultiFileURIConverter.createURI( |
| resDesc.getId()).appendFragment( |
| getURIFragment(otherResource, obj)); |
| return objectURI.toString(); |
| } else { |
| return null; |
| } |
| } |
| } |
| } else { |
| if (!objectURI.scheme().equals(MultiFileURIConverter.SCHEME)) { |
| String fragment = objectURI.fragment(); |
| if (resource instanceof MultiFileXMIResourceImpl |
| && ((MultiFileXMIResourceImpl) resource) |
| .getEObjectByID(fragment) != null) { |
| return "#" + fragment; //$NON-NLS-1$ |
| } else { |
| objectURI = deresolve(objectURI); |
| } |
| } |
| return objectURI.toString(); |
| } |
| } |
| |
| return super.getHREF(obj); |
| } |
| |
| protected static class ProxyReference { |
| private InternalEObject owner; |
| |
| private EReference reference; |
| |
| private InternalEObject proxy; |
| |
| /** |
| * @param owner |
| * @param reference |
| * @param proxy |
| */ |
| public ProxyReference(InternalEObject owner, EReference reference, |
| InternalEObject proxy) { |
| super(); |
| this.owner = owner; |
| this.reference = reference; |
| this.proxy = proxy; |
| } |
| |
| public InternalEObject getOwner() { |
| return owner; |
| } |
| |
| public InternalEObject getProxy() { |
| return proxy; |
| } |
| |
| public EReference getReference() { |
| return reference; |
| } |
| |
| } |
| |
| public void setValue(EObject object, EStructuralFeature feature, |
| Object value, int position) { |
| // TODO: more efficient way to do this replacement |
| // should look at MultiFileXMISaveImpl.MyEscape.convertText() |
| // |
| if (value instanceof String) { |
| String str = (String) value; |
| if (str.indexOf("\n") > 0) { //$NON-NLS-1$ |
| value = str.replaceAll("\n", LINE_SEP); //$NON-NLS-1$ |
| } |
| } |
| ; |
| |
| int kind = getFeatureKind(feature); |
| |
| try { |
| // TODO: temporary fix to avoid ArrayIndexOutOfBoundsException, |
| // needs revisit |
| // |
| if (kind == IS_MANY_MOVE) { |
| List list = (List) object.eGet(feature); |
| if (position > -1 && list.indexOf(value) == -1) { |
| return; |
| } |
| } |
| |
| super.setValue(object, feature, value, position); |
| |
| switch (kind) { |
| case IS_MANY_ADD: |
| case IS_MANY_MOVE: |
| InternalEList list = (InternalEList) object.eGet(feature); |
| |
| // save same document forward (unidirectional) references to |
| // resolve at the end of document parsing |
| // |
| if (feature instanceof EReference) { |
| EReference ref = (EReference) feature; |
| if (ref.getEOpposite() != null) { |
| InternalEObject owner = (InternalEObject) object; |
| for (Iterator iter = list.basicIterator(); iter |
| .hasNext();) { |
| InternalEObject element = (InternalEObject) iter |
| .next(); |
| if (element.eIsProxy() |
| && element.eProxyURI().trimFragment() |
| .equals(resourceURI)) { |
| sameDocReferences.add(new ProxyReference(owner, |
| ref, element)); |
| } |
| } |
| } |
| } |
| |
| break; |
| } |
| } catch (RuntimeException e) { |
| if (logError) { |
| if(MultiFileSaveUtil.DEBUG) { |
| e.printStackTrace(); |
| } |
| CommonPlugin.INSTANCE.log(e); |
| String errMsg = new StringBuffer( |
| "MultiFileXMIHelperImpl.setValue(): ERROR") //$NON-NLS-1$ |
| .append("\n object: ").append(object) //$NON-NLS-1$ |
| .append("\n feature: ").append(feature) //$NON-NLS-1$ |
| .append("\n value: ").append(value) //$NON-NLS-1$ |
| .append("\n position: ").append(position) //$NON-NLS-1$ |
| .append("\n kind: ").append(kind) //$NON-NLS-1$ |
| .toString(); |
| if(MultiFileSaveUtil.DEBUG) { |
| System.err.println(errMsg); |
| } |
| CommonPlugin.INSTANCE.log(errMsg); |
| } |
| throw e; |
| } |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.emf.ecore.xmi.impl.XMLHelperImpl#getValue(org.eclipse.emf.ecore.EObject, org.eclipse.emf.ecore.EStructuralFeature) |
| */ |
| public Object getValue(EObject obj, EStructuralFeature f) { |
| Object value = super.getValue(obj, f); |
| |
| // remove any value that does not belong to any resource |
| // |
| if(f instanceof EReference) { |
| if(f.isMany()) { |
| if(f.isChangeable() && value instanceof InternalEList) { |
| InternalEList list = (InternalEList) value; |
| for (Iterator iter = list.iterator(); iter.hasNext();) { |
| EObject o = (EObject) iter.next(); |
| if(!o.eIsProxy() && o.eResource() == null) { |
| iter.remove(); |
| } |
| } |
| } |
| } |
| else { |
| EObject o = (EObject) value; |
| if(!o.eIsProxy() && o.eResource() == null) { |
| value = null; |
| } |
| } |
| } |
| |
| return value; |
| } |
| |
| } |
