Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.diagram / src / org / simantics / diagram / symbollibrary / SymbolManagerFeature.java

diff --git a/bundles/org.simantics.diagram/src/org/simantics/diagram/symbollibrary/SymbolManagerFeature.java b/bundles/org.simantics.diagram/src/org/simantics/diagram/symbollibrary/SymbolManagerFeature.java
new file mode 100644 (file)
index 0000000..85ed7e6
--- /dev/null
+++ b/bundles/org.simantics.diagram/src/org/simantics/diagram/symbollibrary/SymbolManagerFeature.java
@@ -0,0 +1,85 @@
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
+ * in Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ *     VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.diagram.symbollibrary;\r
+\r
+import java.util.Collection;\r
+import java.util.Collections;\r
+import java.util.HashSet;\r
+\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.diagram.synchronization.graph.BasicResources;\r
+import org.simantics.project.IProject;\r
+import org.simantics.project.exception.ProjectException;\r
+import org.simantics.project.features.AbstractProjectFeature;\r
+import org.simantics.utils.datastructures.disposable.AbstractDisposable;\r
+import org.simantics.utils.datastructures.disposable.IDisposable;\r
+\r
+class SymbolManager extends AbstractDisposable implements ISymbolManager, IDisposable {\r
+\r
+    IProject project;\r
+\r
+    public SymbolManager(IProject project) {\r
+        this.project = project;\r
+        project.setHint(ISymbolManager.KEY_SYMBOL_GROUPS, Collections.emptySet());\r
+    }\r
+\r
+    @Override\r
+    protected void doDispose() {\r
+        project.setHint(KEY_SYMBOL_GROUPS, Collections.emptySet());\r
+    }\r
+\r
+    @Override\r
+    public void addEntryPoints(Collection<ISymbolGroup> eps) {\r
+        Collection<ISymbolGroup> groups = project.getHint(KEY_SYMBOL_GROUPS);\r
+        Collection<ISymbolGroup> newGroups = new HashSet<ISymbolGroup>(groups);\r
+        newGroups.addAll(eps);\r
+        project.setHint(KEY_SYMBOL_GROUPS, Collections.unmodifiableCollection(newGroups));\r
+    }\r
+\r
+    @Override\r
+    public void removeEntryPoints(Collection<ISymbolGroup> eps) {\r
+        Collection<ISymbolGroup> groups = project.getHint(KEY_SYMBOL_GROUPS);\r
+        Collection<ISymbolGroup> newGroups = new HashSet<ISymbolGroup>(groups);\r
+        newGroups.removeAll(eps);\r
+        project.setHint(KEY_SYMBOL_GROUPS, Collections.unmodifiableCollection(newGroups));\r
+    }\r
+\r
+}\r
+\r
+public class SymbolManagerFeature extends AbstractProjectFeature {\r
+\r
+    SymbolManager sm;\r
+\r
+    @Override\r
+    public void configure() throws ProjectException {\r
+        // IMPORTANT: This is vital for making sure that certain basic\r
+        // resource classes are loaded into the database session as its\r
+        // services (see org.simantics.db.ServiceLocator).\r
+        try {\r
+            BasicResources.getInstance(getSession());\r
+        } catch (DatabaseException e) {\r
+            throw new ProjectException(e);\r
+        }\r
+\r
+        sm = new SymbolManager(getProject());\r
+        getProjectElement().setHint(ISymbolManager.KEY_SYMBOL_MANAGER, sm);\r
+    }\r
+\r
+    @Override\r
+    public void deconfigure() throws ProjectException {\r
+        if (getProjectElement().getHint(ISymbolManager.KEY_SYMBOL_MANAGER) == sm)\r
+            getProjectElement().removeHint(ISymbolManager.KEY_SYMBOL_MANAGER);\r
+        sm.dispose();\r
+        sm = null;\r
+    }\r
+\r
+}
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