-/*******************************************************************************\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.g2d.canvas.impl;\r
-\r
-import java.lang.annotation.ElementType;\r
-import java.lang.annotation.Retention;\r
-import java.lang.annotation.RetentionPolicy;\r
-import java.lang.annotation.Target;\r
-import java.lang.reflect.Field;\r
-import java.util.ArrayList;\r
-import java.util.Collection;\r
-import java.util.List;\r
-\r
-import org.simantics.g2d.canvas.ICanvasParticipant;\r
-import org.simantics.g2d.diagram.handler.DiagramHandler;\r
-\r
-/**\r
- * @author Toni Kalajainen\r
- */\r
-public class DependencyReflection {\r
-\r
- private final static ReferenceDefinition[] EMPTY = new ReferenceDefinition[0]; \r
- \r
- @Retention(RetentionPolicy.RUNTIME)\r
- @Target(ElementType.FIELD)\r
- public static @interface Dependency {}\r
- @Retention(RetentionPolicy.RUNTIME)\r
- @Target(ElementType.FIELD)\r
- public static @interface Reference {}\r
- \r
- /**\r
- * Scans an object with reflection for all dependencies \r
- * <p>\r
- * Example:\r
- * \r
- * @Dependency\r
- * ViewportInteractor vi;\r
- * \r
- * @param obj object to scan\r
- * @return an array of painters and their priorities\r
- */\r
- public static ReferenceDefinition[] getDependencies(final Object obj, ReferenceType type)\r
- {\r
- List<ReferenceDefinition> result = new ArrayList<ReferenceDefinition>();\r
- Class<?> clazz = obj.getClass();\r
- _addDependencies(clazz, result, type);\r
- //if (result==null) return EMPTY;\r
- return result.toArray(EMPTY);\r
- }\r
-\r
- private static void _addDependencies(Class<?> clazz, Collection<ReferenceDefinition> result, ReferenceType type)\r
- {\r
- for (final Field f : clazz.getDeclaredFields()) {\r
- Class<?> c = f.getType();\r
- Dependency dep = (Dependency) f.getAnnotation(Dependency.class);\r
- Reference ref = (Reference) f.getAnnotation(Reference.class);\r
- if (dep==null && ref==null) continue;\r
- ReferenceType referenceType = null; \r
- if ( ICanvasParticipant.class.isAssignableFrom( c ) )\r
- referenceType = ReferenceType.CanvasParticipant;\r
- else if ( DiagramHandler.class.isAssignableFrom( c ) )\r
- referenceType = ReferenceType.DiagramHandler;\r
- else assert(false);\r
- if (referenceType!=type) continue;\r
- \r
- assert(!(dep!=null && ref!=null));\r
- ReferenceDefinition rd = new ReferenceDefinition();\r
- rd.dependency = dep!=null;\r
- rd.field = f;\r
- rd.requirement = c;\r
- rd.referenceType = referenceType;\r
- \r
- f.setAccessible(true);\r
- result.add(rd);\r
- }\r
- Class<?> superClass = clazz.getSuperclass();\r
- if (superClass!=null)\r
- _addDependencies(superClass, result, type);\r
- }\r
- \r
- public final static class ReferenceDefinition {\r
- public Class<?> requirement;\r
- public Field field;\r
- public boolean dependency;\r
- public ReferenceType referenceType; \r
- } \r
- \r
- public static enum ReferenceType {\r
- CanvasParticipant, DiagramHandler\r
- }\r
- \r
-}\r
+/*******************************************************************************
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * 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:
+ * VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.g2d.canvas.impl;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+import java.lang.reflect.Field;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+
+import org.simantics.g2d.canvas.ICanvasParticipant;
+import org.simantics.g2d.diagram.handler.DiagramHandler;
+
+/**
+ * @author Toni Kalajainen
+ */
+public class DependencyReflection {
+
+ private final static ReferenceDefinition[] EMPTY = new ReferenceDefinition[0];
+
+ @Retention(RetentionPolicy.RUNTIME)
+ @Target(ElementType.FIELD)
+ public static @interface Dependency {}
+ @Retention(RetentionPolicy.RUNTIME)
+ @Target(ElementType.FIELD)
+ public static @interface Reference {}
+
+ /**
+ * Scans an object with reflection for all dependencies
+ * <p>
+ * Example:
+ *
+ * @Dependency
+ * ViewportInteractor vi;
+ *
+ * @param obj object to scan
+ * @return an array of painters and their priorities
+ */
+ public static ReferenceDefinition[] getDependencies(final Object obj, ReferenceType type)
+ {
+ List<ReferenceDefinition> result = new ArrayList<ReferenceDefinition>();
+ Class<?> clazz = obj.getClass();
+ _addDependencies(clazz, result, type);
+ //if (result==null) return EMPTY;
+ return result.toArray(EMPTY);
+ }
+
+ private static void _addDependencies(Class<?> clazz, Collection<ReferenceDefinition> result, ReferenceType type)
+ {
+ for (final Field f : clazz.getDeclaredFields()) {
+ Class<?> c = f.getType();
+ Dependency dep = (Dependency) f.getAnnotation(Dependency.class);
+ Reference ref = (Reference) f.getAnnotation(Reference.class);
+ if (dep==null && ref==null) continue;
+ ReferenceType referenceType = null;
+ if ( ICanvasParticipant.class.isAssignableFrom( c ) )
+ referenceType = ReferenceType.CanvasParticipant;
+ else if ( DiagramHandler.class.isAssignableFrom( c ) )
+ referenceType = ReferenceType.DiagramHandler;
+ else assert(false);
+ if (referenceType!=type) continue;
+
+ assert(!(dep!=null && ref!=null));
+ ReferenceDefinition rd = new ReferenceDefinition();
+ rd.dependency = dep!=null;
+ rd.field = f;
+ rd.requirement = c;
+ rd.referenceType = referenceType;
+
+ f.setAccessible(true);
+ result.add(rd);
+ }
+ Class<?> superClass = clazz.getSuperclass();
+ if (superClass!=null)
+ _addDependencies(superClass, result, type);
+ }
+
+ public final static class ReferenceDefinition {
+ public Class<?> requirement;
+ public Field field;
+ public boolean dependency;
+ public ReferenceType referenceType;
+ }
+
+ public static enum ReferenceType {
+ CanvasParticipant, DiagramHandler
+ }
+
+}
Code Review / simantics / platform.git / blobdiff