-/*******************************************************************************\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.diagram.impl;\r
-\r
-import java.io.Serializable;\r
-import java.util.ArrayList;\r
-import java.util.Collection;\r
-import java.util.Collections;\r
-import java.util.List;\r
-\r
-import org.simantics.utils.datastructures.MapList;\r
-\r
-/**\r
- * @author Toni Kalajainen\r
- */\r
-public class AbstractHandlerClass<Handler> implements Serializable {\r
-\r
- private static final long serialVersionUID = 4137854678128072467L;\r
-\r
- private final MapList<Class<?>, Handler> handlers = new MapList<Class<?>, Handler>();\r
- private final List<Handler> snapshot;\r
- private final int hash;\r
-\r
- public AbstractHandlerClass(Collection<Handler> contributions)\r
- {\r
- for (Handler c : contributions)\r
- _addClass(c.getClass(), c);\r
- this.handlers.makeImmutable();\r
- this.snapshot = Collections.unmodifiableList(new ArrayList<Handler>(contributions));\r
- this.hash = snapshot.hashCode();\r
- }\r
-\r
- private void _addClass(Class<?> clazz, Handler ec)\r
- {\r
- if (handlers.contains(clazz, ec)) return;\r
- handlers.add(clazz, ec);\r
- Class<?> superClazz = clazz.getSuperclass();\r
- if (superClazz!=null) _addClass(superClazz, ec);\r
- for (Class<?> interphase : clazz.getInterfaces())\r
- _addClass(interphase, ec);\r
- }\r
-\r
- /**\r
- * Get all interactors by class\r
- * @param clazz\r
- * @return collection\r
- */\r
- @SuppressWarnings("unchecked")\r
- public <R extends Handler> List<R> getItemsByClass(Class<R> clazz)\r
- {\r
- List<R> result = (List<R>) handlers.getValuesUnsafe(clazz);\r
- if (result!=null)\r
- return result;\r
- return Collections.emptyList();\r
- }\r
-\r
- /**\r
- * Get a single item by class.\r
- * (Convenience method)\r
- * \r
- * @param <R>\r
- * @param clazz\r
- * @return the item\r
- * @throws RuntimeException if single interactor was not found\r
- */\r
- @SuppressWarnings("unchecked")\r
- public <R extends Handler> R getSingleItem(Class<R> clazz)\r
- {\r
- List<R> list = (List<R>) handlers.getValuesUnsafe(clazz);\r
- if (list==null || list.size()!=1)\r
- throw new RuntimeException("Invalid element class "+toString()+": One and only one "+clazz.getName()+" is expected, got " + (list != null ? list.size() : 0));\r
- return list.get(0);\r
- }\r
-\r
- /**\r
- * Get a single item by class.\r
- * (Convenience method)\r
- * \r
- * @param <R>\r
- * @param clazz\r
- * @return the item or <code>null</code>\r
- * @throws RuntimeException if more than one items were found\r
- */\r
- @SuppressWarnings("unchecked")\r
- public <R extends Handler> R getAtMostOneItemOfClass(Class<R> clazz)\r
- {\r
- List<R> list = (List<R>) handlers.getValuesUnsafe(clazz);\r
- if (list==null || list.size()==0) return null;\r
- if (list.size()==1) return list.get(0);\r
- throw new RuntimeException("At most one was "+clazz.getName()+" expected in "+this.getClass().getName() + ", got " + list.size());\r
- }\r
-\r
- public <R extends Handler> R[] getAtMostItemsOfClass(Class<R> clazz, R[] result)\r
- {\r
- handlers.getAtMostValues(clazz, result);\r
- return result;\r
- }\r
-\r
- public List<Handler> getAll()\r
- {\r
- return snapshot;\r
- }\r
-\r
- public boolean contains(Handler handler)\r
- {\r
- return getAll().contains(handler);\r
- }\r
-\r
- @SuppressWarnings("unchecked")\r
- public <R extends Handler> boolean containsClass(Class<R> clazz)\r
- {\r
- List<R> list = (List<R>) handlers.getValuesUnsafe(clazz);\r
- if (list==null || list.size()==0) return false;\r
- return list.size()>0;\r
- }\r
-\r
- @Override\r
- public int hashCode() {\r
- return hash;\r
- }\r
-\r
- @Override\r
- public boolean equals(Object obj) {\r
- if (this == obj)\r
- return true;\r
- if (obj == null)\r
- return false;\r
- if (!(obj instanceof AbstractHandlerClass<?>))\r
- return false;\r
- AbstractHandlerClass<?> other = (AbstractHandlerClass<?>) obj;\r
- return snapshot.equals(other.snapshot);\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.diagram.impl;
+
+import java.io.Serializable;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.List;
+
+import org.simantics.utils.datastructures.MapList;
+
+/**
+ * @author Toni Kalajainen
+ */
+public class AbstractHandlerClass<Handler> implements Serializable {
+
+ private static final long serialVersionUID = 4137854678128072467L;
+
+ private final MapList<Class<?>, Handler> handlers = new MapList<Class<?>, Handler>();
+ private final List<Handler> snapshot;
+ private final int hash;
+
+ public AbstractHandlerClass(Collection<Handler> contributions)
+ {
+ for (Handler c : contributions)
+ _addClass(c.getClass(), c);
+ this.handlers.makeImmutable();
+ this.snapshot = Collections.unmodifiableList(new ArrayList<Handler>(contributions));
+ this.hash = snapshot.hashCode();
+ }
+
+ private void _addClass(Class<?> clazz, Handler ec)
+ {
+ if (handlers.contains(clazz, ec)) return;
+ handlers.add(clazz, ec);
+ Class<?> superClazz = clazz.getSuperclass();
+ if (superClazz!=null) _addClass(superClazz, ec);
+ for (Class<?> interphase : clazz.getInterfaces())
+ _addClass(interphase, ec);
+ }
+
+ /**
+ * Get all interactors by class
+ * @param clazz
+ * @return collection
+ */
+ @SuppressWarnings("unchecked")
+ public <R extends Handler> List<R> getItemsByClass(Class<R> clazz)
+ {
+ List<R> result = (List<R>) handlers.getValuesUnsafe(clazz);
+ if (result!=null)
+ return result;
+ return Collections.emptyList();
+ }
+
+ /**
+ * Get a single item by class.
+ * (Convenience method)
+ *
+ * @param <R>
+ * @param clazz
+ * @return the item
+ * @throws RuntimeException if single interactor was not found
+ */
+ @SuppressWarnings("unchecked")
+ public <R extends Handler> R getSingleItem(Class<R> clazz)
+ {
+ List<R> list = (List<R>) handlers.getValuesUnsafe(clazz);
+ if (list==null || list.size()!=1)
+ throw new RuntimeException("Invalid element class "+toString()+": One and only one "+clazz.getName()+" is expected, got " + (list != null ? list.size() : 0));
+ return list.get(0);
+ }
+
+ /**
+ * Get a single item by class.
+ * (Convenience method)
+ *
+ * @param <R>
+ * @param clazz
+ * @return the item or <code>null</code>
+ * @throws RuntimeException if more than one items were found
+ */
+ @SuppressWarnings("unchecked")
+ public <R extends Handler> R getAtMostOneItemOfClass(Class<R> clazz)
+ {
+ List<R> list = (List<R>) handlers.getValuesUnsafe(clazz);
+ if (list==null || list.size()==0) return null;
+ if (list.size()==1) return list.get(0);
+ throw new RuntimeException("At most one was "+clazz.getName()+" expected in "+this.getClass().getName() + ", got " + list.size());
+ }
+
+ public <R extends Handler> R[] getAtMostItemsOfClass(Class<R> clazz, R[] result)
+ {
+ handlers.getAtMostValues(clazz, result);
+ return result;
+ }
+
+ public List<Handler> getAll()
+ {
+ return snapshot;
+ }
+
+ public boolean contains(Handler handler)
+ {
+ return getAll().contains(handler);
+ }
+
+ @SuppressWarnings("unchecked")
+ public <R extends Handler> boolean containsClass(Class<R> clazz)
+ {
+ List<R> list = (List<R>) handlers.getValuesUnsafe(clazz);
+ if (list==null || list.size()==0) return false;
+ return list.size()>0;
+ }
+
+ @Override
+ public int hashCode() {
+ return hash;
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (this == obj)
+ return true;
+ if (obj == null)
+ return false;
+ if (!(obj instanceof AbstractHandlerClass<?>))
+ return false;
+ AbstractHandlerClass<?> other = (AbstractHandlerClass<?>) obj;
+ return snapshot.equals(other.snapshot);
+ }
+
+}
Code Review / simantics / platform.git / blobdiff