diff options
Diffstat (limited to 'core/org.eclipse.cdt.core/model/org/eclipse/cdt/internal/core/model/DeltaProcessor.java')
| -rw-r--r-- | core/org.eclipse.cdt.core/model/org/eclipse/cdt/internal/core/model/DeltaProcessor.java | 636 |
1 files changed, 0 insertions, 636 deletions
diff --git a/core/org.eclipse.cdt.core/model/org/eclipse/cdt/internal/core/model/DeltaProcessor.java b/core/org.eclipse.cdt.core/model/org/eclipse/cdt/internal/core/model/DeltaProcessor.java deleted file mode 100644 index 7733a65940d..00000000000 --- a/core/org.eclipse.cdt.core/model/org/eclipse/cdt/internal/core/model/DeltaProcessor.java +++ /dev/null @@ -1,636 +0,0 @@ -package org.eclipse.cdt.internal.core.model; - -/* - * (c) Copyright IBM Corp. 2000, 2001. - * All Rights Reserved. - */ - -import org.eclipse.cdt.core.model.CModelException; -import org.eclipse.cdt.core.model.CoreModel; -import org.eclipse.cdt.core.model.IArchiveContainer; -import org.eclipse.cdt.core.model.IBinaryContainer; -import org.eclipse.cdt.core.model.ICElement; -import org.eclipse.cdt.core.model.ICElementDelta; -import org.eclipse.cdt.core.model.ICProject; -import org.eclipse.cdt.core.model.ISourceRoot; -import org.eclipse.cdt.internal.core.search.indexing.IndexManager; -import org.eclipse.core.resources.IFile; -import org.eclipse.core.resources.IProject; -import org.eclipse.core.resources.IResource; -import org.eclipse.core.resources.IResourceDelta; -import org.eclipse.core.resources.IWorkspaceRoot; -import org.eclipse.core.runtime.IPath; - -/** - * This class is used by <code>CModelManager</code> to convert - * <code>IResourceDelta</code>s into <code>ICElementDelta</code>s. - * It also does some processing on the <code>CElement</code>s involved - * (e.g. closing them or updating classpaths). - */ -public class DeltaProcessor { - - /** - * The <code>CElementDelta</code> corresponding to the <code>IResourceDelta</code> being translated. - */ - protected CElementDelta fCurrentDelta; - - protected IndexManager indexManager = new IndexManager(); - - /* The C element that was last created (see createElement(IResource). - * This is used as a stack of C elements (using getParent() to pop it, and - * using the various get*(...) to push it. */ - ICElement currentElement; - - static final ICElementDelta[] NO_DELTA = new ICElementDelta[0]; - - public static boolean VERBOSE = false; - - // Hold on the element bein renamed. - ICElement movedFromElement = null; - - /** - * Creates the create corresponding to this resource. - * Returns null if none was found. - */ - protected ICElement createElement(IResource resource) { - if (resource == null) { - return null; - } - - CModelManager manager = CModelManager.getDefault(); - - boolean shouldProcess = true; - - // Check for C nature or if the was a CNature - if (!(resource instanceof IWorkspaceRoot)) { - IProject project = resource.getProject(); - if (!(CoreModel.hasCNature(project) || CoreModel.hasCCNature(project))) { - shouldProcess = false; - CModel root = manager.getCModel(); - CModelInfo rootInfo = (CModelInfo)manager.peekAtInfo(root); - if (rootInfo != null) { - ICElement[] celements = rootInfo.getChildren(); - for (int i = 0; i < celements.length; i++) { - IResource r = celements[i].getResource(); - if (project.equals(r)) { - shouldProcess = true; - } - } - } - } - } - - if (!shouldProcess) { - return null; - } - - ICElement celement = manager.create(resource, null); - - // BUG 36424: - // The Binary may only be visible in the BinaryContainers - try { - if (celement == null && resource.getType() == IResource.FILE) { - ICElement[] children; - ICProject cproj = manager.create(resource.getProject()); - if (cproj != null && cproj.isOpen()) { - IBinaryContainer bin = cproj.getBinaryContainer(); - if (bin.isOpen()) { - children = ((CElement)bin).getElementInfo().getChildren(); - for (int i = 0; i < children.length; i++) { - IResource res = children[i].getResource(); - if (resource.equals(res)) { - celement = children[i]; - break; - } - } - } - } - } - // BUG 36424: - // The Archive may only be visible in the ArchiveContainers - if (celement == null && resource.getType() == IResource.FILE) { - ICElement[] children; - ICProject cproj = manager.create(resource.getProject()); - if (cproj != null && cproj.isOpen()) { - IArchiveContainer ar = cproj.getArchiveContainer(); - if (ar.isOpen()) { - children = ((CElement)ar).getElementInfo().getChildren(); - for (int i = 0; i < children.length; i++) { - IResource res = children[i].getResource(); - if (resource.equals(res)) { - celement = children[i]; - break; - } - } - } - } - } - // It is not a C resource if the parent is a Binary/ArchiveContainer - // But we have to release too. - if (celement != null && resource.getType() == IResource.FILE) { - ICElement parent = celement.getParent(); - if (parent instanceof IArchiveContainer || parent instanceof IBinaryContainer) { - releaseCElement(celement); - celement = null; - } - } - } catch (CModelException e) { - return null; - } - return celement; - } - - /** - * Adds the given child handle to its parent's cache of children. - */ - protected void addToParentInfo(Openable child) throws CModelException { - Openable parent = (Openable) child.getParent(); - if (parent != null && parent.isOpen()) { - CElementInfo info = parent.getElementInfo(); - // Check if the element exits - if (!info.includesChild(child)) { - info.addChild(child); - } - } - } - - /** - * Removes the given element from its parents cache of children. If the - * element does not have a parent, or the parent is not currently open, - * this has no effect. - */ - private void removeFromParentInfo(ICElement child) throws CModelException { - CModelManager factory = CModelManager.getDefault(); - - // Remove the child from the parent list. - ICElement parent = child.getParent(); - if (parent != null && parent instanceof Parent && factory.peekAtInfo(parent) != null) { - ((Parent)parent).removeChild(child); - } - } - - /** - * Release the Element and cleaning. - */ - protected void releaseCElement(ICElement celement) throws CModelException { - CModelManager factory = CModelManager.getDefault(); - int type = celement.getElementType(); - if (type == ICElement.C_ARCHIVE) { - ICProject cproject = celement.getCProject(); - IArchiveContainer container = cproject.getArchiveContainer(); - fCurrentDelta.changed(container, ICElementDelta.CHANGED); - } else if (type == ICElement.C_BINARY) { - ICProject cproject = celement.getCProject(); - IBinaryContainer container = cproject.getBinaryContainer(); - fCurrentDelta.changed(container, ICElementDelta.CHANGED); - } else { - // If an entire folder was deleted we need to update the - // BinaryContainer/ArchiveContainer also. - ICProject cproject = celement.getCProject(); - CProjectInfo pinfo = (CProjectInfo)factory.peekAtInfo(cproject); - if (pinfo != null && pinfo.vBin != null) { - if (factory.peekAtInfo(pinfo.vBin) != null) { - ICElement[] bins = pinfo.vBin.getChildren(); - for (int i = 0; i < bins.length; i++) { - if (celement.getPath().isPrefixOf(bins[i].getPath())) { - fCurrentDelta.changed(pinfo.vBin, ICElementDelta.CHANGED); - } - } - } - } - if (pinfo != null && pinfo.vLib != null) { - if (factory.peekAtInfo(pinfo.vLib) != null) { - ICElement[] ars = pinfo.vLib.getChildren(); - for (int i = 0; i < ars.length; i++) { - if (celement.getPath().isPrefixOf(ars[i].getPath())) { - fCurrentDelta.changed(pinfo.vBin, ICElementDelta.CHANGED); - } - } - } - } - } - removeFromParentInfo(celement); - factory.releaseCElement(celement); - } - - /** - * Creates the create corresponding to this resource. - * Returns null if none was found. - */ - protected ICElement createElement(IPath path) { - return CModelManager.getDefault().create(path); - } - - /** - * Processing for an element that has been added:<ul> - * <li>If the element is a project, do nothing, and do not process - * children, as when a project is created it does not yet have any - * natures - specifically a java nature. - * <li>If the elemet is not a project, process it as added (see - * <code>basicElementAdded</code>. - * </ul> - */ - protected void elementAdded(ICElement element, IResourceDelta delta) throws CModelException { - - if (element instanceof Openable) { - addToParentInfo((Openable)element); - } - if ((delta.getFlags() & IResourceDelta.MOVED_FROM) != 0) { - //ICElement movedFromElement = createElement(delta.getMovedFromPath()); - if (movedFromElement == null) { - movedFromElement = createElement(delta.getMovedFromPath()); - } - fCurrentDelta.movedTo(element, movedFromElement); - movedFromElement = null; - } else { - fCurrentDelta.added(element); - } - } - - /** - * Processing for the closing of an element - there are two cases:<ul> - * <li>when a project is closed (in the platform sense), the - * CModel reports this as if the CProject has been removed. - * <li>otherwise, the CModel reports this - * as a the element being closed (CHANGED + F_CLOSED). - * </ul> - * <p>In both cases, the children of the element are not processed. When - * a resource is closed, the platform reports all children as removed. This - * would effectively delete the classpath if we processed children. - */ - protected void elementClosed(ICElement element, IResourceDelta delta) throws CModelException { - - if (element.getElementType() == ICElement.C_PROJECT) { - // treat project closing as removal - elementRemoved(element, delta); - CModelInfo rootInfo = (CModelInfo)CModelManager.getDefault().getCModel().getElementInfo(); - rootInfo.setNonCResources(null); - } else { - fCurrentDelta.closed(element); - } - } - - /** - * Processing for the opening of an element - there are two cases:<ul> - * <li>when a project is opened (in the platform sense), the - * CModel reports this as if the CProject has been added. - * <li>otherwise, the CModel reports this - * as a the element being opened (CHANGED + F_CLOSED). - * </ul> - */ - protected void elementOpened(ICElement element, IResourceDelta delta) throws CModelException { - - if (element.getElementType() == ICElement.C_PROJECT) { - // treat project opening as addition - if (hasCNature(delta.getResource())) { - elementAdded(element, delta); - } - CModelInfo rootInfo = (CModelInfo)CModelManager.getDefault().getCModel().getElementInfo(); - rootInfo.setNonCResources(null); - - } else { - fCurrentDelta.opened(element); - } - } - - /* - * Closes the given element, which removes it from the cache of open elements. - */ - private void close(Openable element) { - try { - element.close(); - } catch (CModelException e) { - // do nothing - } - } - - /** - * Generic processing for elements with changed contents:<ul> - * <li>The element is closed such that any subsequent accesses will re-open - * the element reflecting its new structure. - * <li>An entry is made in the delta reporting a content change (K_CHANGE with F_CONTENT flag set). - * </ul> - */ - protected void elementChanged(ICElement element, IResourceDelta delta) { - if (element instanceof Openable) { - close((Openable)element); - } - fCurrentDelta.changed(element, ICElementDelta.F_CONTENT); - } - - /** - * Generic processing for a removed element:<ul> - * <li>Close the element, removing its structure from the cache - * <li>Remove the element from its parent's cache of children - * <li>Add a REMOVED entry in the delta - * </ul> - */ - protected void elementRemoved(ICElement element, IResourceDelta delta) throws CModelException { - if ((delta.getFlags() & IResourceDelta.MOVED_TO) != 0) { - IPath movedToPath = delta.getMovedToPath(); - // create the moved to element - ICElement movedToElement = createElement(movedToPath); - if (movedToElement == null) { - // moved outside - fCurrentDelta.removed(element); - } else { - movedFromElement = element; - fCurrentDelta.movedFrom(element, movedToElement); - } - } else { - fCurrentDelta.removed(element); - } - releaseCElement(element); - } - - /** - * Filters the generated <code>CElementDelta</code>s to remove those - * which should not be fired (because they don't represent a real change - * in the C Model). - */ - protected ICElementDelta[] filterRealDeltas(ICElementDelta[] deltas) { - - int length = deltas.length; - ICElementDelta[] realDeltas = null; - int index = 0; - for (int i = 0; i < length; i++) { - CElementDelta delta = (CElementDelta)deltas[i]; - if (delta == null) { - continue; - } - if (delta.getAffectedChildren().length > 0 - || delta.getKind() == ICElementDelta.ADDED - || delta.getKind() == ICElementDelta.REMOVED - || (delta.getFlags() & ICElementDelta.F_CLOSED) != 0 - || (delta.getFlags() & ICElementDelta.F_OPENED) != 0 - || delta.resourceDeltasCounter > 0) { - - if (realDeltas == null) { - realDeltas = new ICElementDelta[length]; - } - realDeltas[index++] = delta; - } - } - if (index > 0) { - ICElementDelta[] result = new ICElementDelta[index]; - System.arraycopy(realDeltas, 0, result, 0, index); - return result; - } - return NO_DELTA; - } - - /** - * Returns true if the given resource is contained in an open project - * with a java nature, otherwise false. - */ - protected boolean hasCNature(IResource resource) { - // ensure the project has a C nature (if open) - IProject project = resource.getProject(); - if (project.isOpen()) { - return CoreModel.hasCNature(project); - } - return false; - } - - /** - * Converts a <code>IResourceDelta</code> rooted in a <code>Workspace</code> into - * the corresponding set of <code>ICElementDelta</code>, rooted in the - * relevant <code>CModel</code>s. - */ - public ICElementDelta[] processResourceDelta(IResourceDelta changes) { - - try { - ICElement root = CModelManager.getDefault().getCModel(); - // get the workspace delta, and start processing there. - IResourceDelta[] deltas = changes.getAffectedChildren(); - ICElementDelta[] translatedDeltas = new CElementDelta[deltas.length]; - //System.out.println("delta.length: " + deltas.length); - for (int i = 0; i < deltas.length; i++) { - IResourceDelta delta = deltas[i]; - fCurrentDelta = new CElementDelta(root); - traverseDelta(root, delta); // traverse delta - translatedDeltas[i] = fCurrentDelta; - } - return filterRealDeltas(translatedDeltas); - } finally { - } - } - - /** - * Converts an <code>IResourceDelta</code> and its children into - * the corresponding <code>ICElementDelta</code>s. - * Return whether the delta corresponds to a resource on the classpath. - * If it is not a resource on the classpath, it will be added as a non-java - * resource by the sender of this method. - */ - protected void traverseDelta(ICElement parent, IResourceDelta delta) { - boolean updateChildren = true; - try { - IResource resource = delta.getResource(); - ICElement current = createElement(resource); - updateChildren = updateCurrentDeltaAndIndex(current, delta); - if (current == null || current instanceof ISourceRoot) { - nonCResourcesChanged(parent, delta); - } else if (current instanceof ICProject) { - ICProject cprj = (ICProject)current; - CModel cModel = CModelManager.getDefault().getCModel(); - if (!cprj.getProject().isOpen() || cModel.findCProject(cprj.getProject()) == null) { - nonCResourcesChanged(parent, delta); - } - } - if (current != null) { - parent = current; - } - } catch (CModelException e) { - } - if (updateChildren){ - IResourceDelta [] children = delta.getAffectedChildren(); - for (int i = 0; i < children.length; i++) { - traverseDelta(parent, children[i]); - } - } - } - - /** - * Add the resource delta to the right CElementDelta tree. - * @param parent - * @param delta - */ - protected void nonCResourcesChanged(ICElement parent, IResourceDelta delta) throws CModelException { - if (parent instanceof Openable && ((Openable)parent).isOpen()) { - CElementInfo info = ((Openable)parent).getElementInfo(); - switch (parent.getElementType()) { - case ICElement.C_MODEL: - ((CModelInfo)info).setNonCResources(null); - fCurrentDelta.addResourceDelta(delta); - return; - case ICElement.C_PROJECT: - ((CProjectInfo)info).setNonCResources(null); - break; - case ICElement.C_CCONTAINER: - ((CContainerInfo)info).setNonCResources(null); - break; - } - } - CElementDelta elementDelta = fCurrentDelta.find(parent); - if (elementDelta == null) { - fCurrentDelta.changed(parent, ICElementDelta.F_CONTENT); - elementDelta = fCurrentDelta.find(parent); - if (elementDelta != null) { - elementDelta.addResourceDelta(delta); - } - } else { - elementDelta.addResourceDelta(delta); - } - } - - /* - * Update the current delta (ie. add/remove/change the given element) and update the - * correponding index. - * Returns whether the children of the given delta must be processed. - * @throws a CModelException if the delta doesn't correspond to a c element of the given type. - */ - private boolean updateCurrentDeltaAndIndex(ICElement element, IResourceDelta delta) throws CModelException { - - IResource resource = delta.getResource(); - - switch (delta.getKind()) { - case IResourceDelta.ADDED : - if (element != null) { - updateIndexAddResource(element, delta); - elementAdded(element, delta); - } - return true; - - case IResourceDelta.REMOVED : - if (element != null) { - updateIndexRemoveResource(element, delta); - elementRemoved(element, delta); - } - return false; - - case IResourceDelta.CHANGED : - int flags = delta.getFlags(); - if ((flags & IResourceDelta.CONTENT) != 0) { - // content has changed - if (element != null) { - elementChanged(element, delta); - updateIndexAddResource(element, delta); - //check to see if any projects need to be reindexed - updateDependencies(element); - - } - } else if (resource.getType() == IResource.PROJECT) { - if ((flags & IResourceDelta.OPEN) != 0) { - // project has been opened or closed - IProject project = (IProject)resource; - if (element != null) { - if (project.isOpen()) { - if ( CoreModel.hasCNature(project) ) { - // project opening... lets add the runner to the - // map but no need to start it since the deltas - // will populate containers - CModelManager.getDefault().getBinaryRunner((ICProject)element, false); - } - elementOpened(element, delta); - updateIndexAddResource(element, delta); - return true; - } - elementClosed(element, delta); - updateIndexRemoveResource(element, delta); - //Don't process children - return false; - } - } - if ((flags & IResourceDelta.DESCRIPTION) != 0) { - IProject res = (IProject)delta.getResource(); - CModel cModel = CModelManager.getDefault().getCModel(); - boolean wasCProject = cModel.findCProject(res) != null; - boolean isCProject = CProject.hasCNature(res); - if (wasCProject != isCProject) { - // project's nature has been added or removed - if (element != null) { - // note its resources are still visible as roots to other projects - if (isCProject) { - elementAdded(element, delta); - updateIndexAddResource(element, delta); - } else { - elementRemoved(element, delta); - updateIndexRemoveResource(element, delta); - } - return true; - } - } - } - } - return true; - } - return true; - } - - protected void updateIndexAddResource(ICElement element, IResourceDelta delta) { - - if (indexManager == null) - return; - - switch (element.getElementType()) { - case ICElement.C_PROJECT : - this.indexManager.indexAll(element.getCProject().getProject()); - break; - - case ICElement.C_CCONTAINER: - indexManager.indexSourceFolder(element.getCProject().getProject(),element.getPath(),null); - break; - - case ICElement.C_UNIT: - IFile file = (IFile) delta.getResource(); - IProject filesProject = file.getProject(); - indexManager.addSource(file, filesProject.getFullPath()); - break; - } - - } - - protected void updateIndexRemoveResource(ICElement element, IResourceDelta delta) { - - if (indexManager == null) - return; - - switch (element.getElementType()) { - case ICElement.C_PROJECT : - IPath fullPath = element.getCProject().getProject().getFullPath(); - if( delta.getKind() == IResourceDelta.CHANGED ) - indexManager.discardJobs(fullPath.segment(0)); - indexManager.removeIndexFamily(fullPath); - // NB: Discarding index jobs belonging to this project was done during PRE_DELETE - break; - // NB: Update of index if project is opened, closed, or its c nature is added or removed - // is done in updateCurrentDeltaAndIndex - - case ICElement.C_CCONTAINER: - indexManager.removeSourceFolderFromIndex(element.getCProject().getProject(),element.getPath(),null); - break; - - case ICElement.C_UNIT: - IFile file = (IFile) delta.getResource(); - indexManager.remove(file.getFullPath().toString(), file.getProject().getFullPath()); - break; - } - - - } - - private void updateDependencies(ICElement element){ - - IResource resource = element.getResource(); - if (resource == null) - return; - - String filename = resource.getName(); - - if (CoreModel.isValidHeaderUnitName(resource.getProject(), filename)) { - indexManager.updateDependencies(resource); - } - } - -} |