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feat: show simple graph of files in a package
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Jun 26, 2019
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204 changes: 204 additions & 0 deletions
204
src/ch/docksnet/rgraph/directory/PackageReferenceDiagramDataModel.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,204 @@ | ||
| /* | ||
| * Copyright (C) 2019 Stefan Zeller | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
||
| package ch.docksnet.rgraph.directory; | ||
|
|
||
| import ch.docksnet.rgraph.PsiUtils; | ||
| import ch.docksnet.rgraph.ReferenceDiagramProvider; | ||
| import ch.docksnet.rgraph.method.MethodReferenceDiagramDataModel; | ||
| import ch.docksnet.rgraph.method.ReferenceNode; | ||
| import com.intellij.diagram.DiagramDataModel; | ||
| import com.intellij.diagram.DiagramEdge; | ||
| import com.intellij.diagram.DiagramNode; | ||
| import com.intellij.diagram.DiagramProvider; | ||
| import com.intellij.openapi.project.Project; | ||
| import com.intellij.openapi.util.ModificationTracker; | ||
| import com.intellij.psi.PsiClass; | ||
| import com.intellij.psi.PsiElement; | ||
| import com.intellij.psi.PsiJavaFile; | ||
| import com.intellij.psi.PsiManager; | ||
| import com.intellij.psi.SmartPointerManager; | ||
| import com.intellij.psi.SmartPsiElementPointer; | ||
| import com.intellij.psi.impl.file.PsiJavaDirectoryImpl; | ||
| import org.jetbrains.annotations.NotNull; | ||
| import org.jetbrains.annotations.Nullable; | ||
|
|
||
| import java.util.ArrayList; | ||
| import java.util.Collection; | ||
| import java.util.HashMap; | ||
| import java.util.HashSet; | ||
| import java.util.Iterator; | ||
| import java.util.Map; | ||
| import java.util.Set; | ||
|
|
||
| import static ch.docksnet.rgraph.PsiUtils.getFqn; | ||
|
|
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| public class PackageReferenceDiagramDataModel extends DiagramDataModel<PsiElement> { | ||
|
|
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| private final Map<String, SmartPsiElementPointer<PsiElement>> elementsAddedByUser = new HashMap(); | ||
| private final Map<String, SmartPsiElementPointer<PsiElement>> elementsRemovedByUser = new HashMap(); | ||
| private final Map<PsiElement, DiagramNode<PsiElement>> nodesPool = new HashMap<>(); | ||
| private final SmartPointerManager spManager; | ||
|
|
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| private final Collection<DiagramNode<PsiElement>> nodes = new HashSet<>(); | ||
| private final Collection<DiagramEdge<PsiElement>> edges = new HashSet<>(); | ||
|
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| public PackageReferenceDiagramDataModel(Project project, PsiJavaDirectoryImpl directory) { | ||
| super(project, ReferenceDiagramProvider.getInstance()); | ||
| this.spManager = SmartPointerManager.getInstance(getProject()); | ||
| init(directory); | ||
| } | ||
|
|
||
| private void init(PsiJavaDirectoryImpl directory) { | ||
| for (PsiElement child : directory.getChildren()) { | ||
| if (child instanceof PsiJavaFile) { | ||
| this.elementsAddedByUser.put(getFqn(child), this.spManager.createSmartPsiElementPointer(child)); | ||
| } | ||
| } | ||
| } | ||
|
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||
| @NotNull | ||
| @Override | ||
| public Collection<? extends DiagramNode<PsiElement>> getNodes() { | ||
| if (this.nodes == null) { | ||
| throw new IllegalStateException("@NotNull method %s.%s must not return null"); | ||
| } else { | ||
| return this.nodes; | ||
| } | ||
| } | ||
|
|
||
| @NotNull | ||
| @Override | ||
| public Collection<? extends DiagramEdge<PsiElement>> getEdges() { | ||
| if (this.edges == null) { | ||
| throw new IllegalStateException(String.format("@NotNull method %s.%s must not return null", | ||
| new Object[]{"com/intellij/uml/java/JavaUmlDataModel", "getEdges"})); | ||
| } else { | ||
| return this.edges; | ||
| } | ||
| } | ||
|
|
||
| @NotNull | ||
| @Override | ||
| public String getNodeName(DiagramNode<PsiElement> diagramNode) { | ||
| return PsiUtils.getPresentableName(diagramNode.getIdentifyingElement()); | ||
| } | ||
|
|
||
| @Nullable | ||
| @Override | ||
| public DiagramNode<PsiElement> addElement(PsiElement psiElement) { | ||
| return null; | ||
| } | ||
|
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| @Override | ||
| public void refreshDataModel() { | ||
| clearAll(); | ||
| updateDataModel(); | ||
| } | ||
|
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| private void clearAll() { | ||
| this.nodes.clear(); | ||
| this.edges.clear(); | ||
| } | ||
|
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| private synchronized void updateDataModel() { | ||
| DiagramProvider provider = getBuilder().getProvider(); | ||
| Set<PsiElement> elements = getElements(); | ||
|
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| for (PsiElement element : elements) { | ||
| if (isAllowedToShow(element)) { | ||
| this.nodes.add(getReferenceNode(provider, element)); | ||
| } | ||
| } | ||
| } | ||
|
|
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| private Set<PsiElement> getElements() { | ||
| Set<PsiElement> result = new HashSet<>(); | ||
|
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| for (SmartPsiElementPointer<PsiElement> psiElementPointer : this.elementsAddedByUser.values()) { | ||
| PsiElement element = psiElementPointer.getElement(); | ||
| result.add(element); | ||
| } | ||
|
|
||
| for (SmartPsiElementPointer<PsiElement> psiElementPointer : this.elementsRemovedByUser.values()) { | ||
| PsiElement element = psiElementPointer.getElement(); | ||
| result.remove(element); | ||
| } | ||
|
|
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| return result; | ||
| } | ||
|
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| @NotNull | ||
| private ReferenceNode getReferenceNode(DiagramProvider provider, PsiElement element) { | ||
| if (this.nodesPool.containsKey(element)) { | ||
| return (ReferenceNode) this.nodesPool.get(element); | ||
| } | ||
| ReferenceNode node = new ReferenceNode(element, provider); | ||
| this.nodesPool.put(element, node); | ||
| return node; | ||
| } | ||
|
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| private boolean isAllowedToShow(PsiElement element) { | ||
| return true; | ||
| } | ||
|
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||
| @NotNull | ||
| @Override | ||
| public ModificationTracker getModificationTracker() { | ||
| return PsiManager.getInstance(getProject()).getModificationTracker(); | ||
| } | ||
|
|
||
| @Override | ||
| public void dispose() { | ||
| } | ||
|
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| @Override | ||
| public void rebuild(PsiElement element) { | ||
| super.rebuild(element); | ||
| this.elementsRemovedByUser.clear(); | ||
| clearAll(); | ||
| init((PsiJavaDirectoryImpl) element); | ||
| refreshDataModel(); | ||
| } | ||
|
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| @Override | ||
| public boolean hasElement(PsiElement element) { | ||
| return findNode(element) != null; | ||
| } | ||
|
|
||
| /** | ||
| * @param psiElement | ||
| * @return {@code true} if {@code nodes} contains {@code psiElement}. | ||
| */ | ||
| @Nullable | ||
| private DiagramNode<PsiElement> findNode(PsiElement psiElement) { | ||
| Iterator ptr = (new ArrayList(this.nodes)).iterator(); | ||
|
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| while (ptr.hasNext()) { | ||
| DiagramNode node = (DiagramNode) ptr.next(); | ||
| String fqn = PsiUtils.getFqn((PsiElement) node.getIdentifyingElement()); | ||
| if (fqn != null && fqn.equals(PsiUtils.getFqn(psiElement))) { | ||
| return node; | ||
| } | ||
| } | ||
| return null; | ||
| } | ||
|
|
||
| @Override | ||
| public boolean isPsiListener() { | ||
| return true; | ||
| } | ||
| } |
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