-/*******************************************************************************\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
-/*\r
- *\r
- * @author Toni Kalajainen\r
- */\r
-package org.simantics.utils.datastructures;\r
-\r
-import java.util.Collections;\r
-import java.util.HashMap;\r
-import java.util.HashSet;\r
-import java.util.Map;\r
-import java.util.Set;\r
-import java.util.Map.Entry;\r
-\r
-\r
-/**\r
- * Context dependent Key to Key Bijection Mapping. \r
- *\r
- * @param <Context>\r
- * @param <Key>\r
- */\r
-public class MappingWithContext<Context, Key> {\r
-\r
- public static class IntersectingContextsException extends Exception {\r
- private static final long serialVersionUID = 3411795376917295313L;\r
- public IntersectingContextsException(Object c, Object key1, Object key2) {\r
- super("The two keys "+key1+" and "+key2+" are intersecting in context "+c);\r
- }\r
- };\r
- \r
- Map<Context, BijectionMap<Key, Key>> maps = \r
- new HashMap<Context, BijectionMap<Key, Key>>();\r
- \r
- /**\r
- * Add mapping. null context applies always.\r
- * \r
- * @param context\r
- * @param leftKey\r
- * @param rightKey\r
- */\r
- public synchronized void addMapping(Context context, Key leftKey, Key rightKey)\r
- {\r
- BijectionMap<Key, Key> map = getOrCreateMap(context);\r
- map.map(leftKey, rightKey); \r
- }\r
-\r
- /**\r
- * Get right value with left key\r
- * @param contexts effective contexts\r
- * @param leftKey\r
- * @return a single right value or null\r
- * @throws IntersectingContextsException\r
- */\r
- public synchronized Key getAtMostOneMappingWithLeftKey(Context[] contexts, Key leftKey)\r
- throws IntersectingContextsException\r
- {\r
- Key result = null;\r
- Context resultContext = null;\r
- for (Context c : contexts)\r
- {\r
- BijectionMap<Key, Key> map = maps.get(c);\r
- if (map==null) continue;\r
- Key value = map.getRight(leftKey);\r
- if (value==null) continue;\r
- if (result!=null) throw new IntersectingContextsException(resultContext, value, result);\r
- result = value;\r
- resultContext = c;\r
- }\r
-\r
- return result;\r
- }\r
-\r
- /**\r
- * Get left value with right key\r
- * @param contexts effective contexts\r
- * @param rightKey\r
- * @return a single left value or null\r
- * @throws IntersectingContextsException\r
- */\r
- public synchronized Key getAtMostOneMappingWithRightKey(Context[] contexts, Key rightKey)\r
- throws IntersectingContextsException\r
- {\r
- Key result = null;\r
- Context resultContext = null;\r
- for (Context c : contexts)\r
- {\r
- BijectionMap<Key, Key> map = maps.get(c);\r
- if (map==null) continue;\r
- Key value = map.getLeft(rightKey);\r
- if (value==null) continue;\r
- if (result!=null) throw new IntersectingContextsException(resultContext, value, result);\r
- result = value;\r
- resultContext = c;\r
- }\r
-\r
- return result;\r
- }\r
- \r
- /**\r
- * Get all right values with left key\r
- * @param contexts effective contexts\r
- * @param leftKey\r
- * @return a single right value or null\r
- * @throws IntersectingContextsException\r
- */\r
- public synchronized Set<Key> getMappingWithLeftKey(Context[] contexts, Key leftKey)\r
- throws IntersectingContextsException\r
- {\r
- Set<Key> result = new HashSet<Key>();\r
- for (Context c : contexts)\r
- {\r
- BijectionMap<Key, Key> map = maps.get(c);\r
- if (map==null) continue;\r
- Key value = map.getRight(leftKey);\r
- if (value==null) continue;\r
- result.add(value);\r
- }\r
- return result;\r
- }\r
-\r
- /**\r
- * Get all left values with right key\r
- * @param contexts effective contexts\r
- * @param rightKey\r
- * @return a single left value or null\r
- * @throws IntersectingContextsException\r
- */\r
- public synchronized Set<Key> getMappingWithRightKey(Context[] contexts, Key rightKey)\r
- throws IntersectingContextsException\r
- {\r
- Set<Key> result = new HashSet<Key>();\r
- for (Context c : contexts)\r
- {\r
- BijectionMap<Key, Key> map = maps.get(c);\r
- if (map==null) continue;\r
- Key value = map.getLeft(rightKey);\r
- if (value==null) continue;\r
- result.add(value);\r
- }\r
- return result;\r
- } \r
- \r
- private synchronized BijectionMap<Key, Key> getOrCreateMap(Context context)\r
- {\r
- BijectionMap<Key, Key> result = maps.get(context);\r
- if (result!=null) return result;\r
- result = new BijectionMap<Key, Key>();\r
- maps.put(context, result); \r
- return result; \r
- }\r
- \r
- public synchronized void addMapToContext(Context context, BijectionMap<Key, Key> map)\r
- {\r
- BijectionMap<Key, Key> m = getOrCreateMap(context);\r
- m.addAll(map);\r
- }\r
- \r
- public synchronized Set<Context> getContexts()\r
- {\r
- return Collections.unmodifiableSet(maps.keySet());\r
- }\r
- \r
- public synchronized Set<Key> getLeftKeys(Context context)\r
- {\r
- BijectionMap<Key, Key> map = maps.get(context);\r
- if (map==null) return null;\r
- return Collections.unmodifiableSet(map.getLeftSet()); \r
- }\r
- \r
- public synchronized Set<Key> getRightKeys(Context context)\r
- {\r
- BijectionMap<Key, Key> map = maps.get(context);\r
- if (map==null) return null;\r
- return Collections.unmodifiableSet(map.getRightSet()); \r
- }\r
-\r
- public synchronized Set<Key> getAllLeftKeys()\r
- {\r
- Set<Key> result = new HashSet<Key>();\r
- for (Context context : getContexts())\r
- result.addAll(getLeftKeys(context));\r
- return result;\r
- }\r
- \r
- public synchronized Set<Key> getAllRightKeys()\r
- {\r
- Set<Key> result = new HashSet<Key>();\r
- for (Context context : getContexts())\r
- result.addAll(getRightKeys(context));\r
- return result;\r
- }\r
- \r
- @Override\r
- public String toString() {\r
- int count = 0;\r
- StringBuilder sb = new StringBuilder();\r
- sb.append("[");\r
- for (Entry<Context, BijectionMap<Key, Key>> e : maps.entrySet())\r
- {\r
- if (count++>0) sb.append(", ");\r
- sb.append((e.getKey()==null?"null":e.getKey().toString()));\r
- sb.append("=");\r
- sb.append(e.getValue().toString()); \r
- }\r
- sb.append("]");\r
- return sb.toString();\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
+ *******************************************************************************/
+/*
+ *
+ * @author Toni Kalajainen
+ */
+package org.simantics.utils.datastructures;
+
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+import java.util.Map.Entry;
+
+
+/**
+ * Context dependent Key to Key Bijection Mapping.
+ *
+ * @param <Context>
+ * @param <Key>
+ */
+public class MappingWithContext<Context, Key> {
+
+ public static class IntersectingContextsException extends Exception {
+ private static final long serialVersionUID = 3411795376917295313L;
+ public IntersectingContextsException(Object c, Object key1, Object key2) {
+ super("The two keys "+key1+" and "+key2+" are intersecting in context "+c);
+ }
+ };
+
+ Map<Context, BijectionMap<Key, Key>> maps =
+ new HashMap<Context, BijectionMap<Key, Key>>();
+
+ /**
+ * Add mapping. null context applies always.
+ *
+ * @param context
+ * @param leftKey
+ * @param rightKey
+ */
+ public synchronized void addMapping(Context context, Key leftKey, Key rightKey)
+ {
+ BijectionMap<Key, Key> map = getOrCreateMap(context);
+ map.map(leftKey, rightKey);
+ }
+
+ /**
+ * Get right value with left key
+ * @param contexts effective contexts
+ * @param leftKey
+ * @return a single right value or null
+ * @throws IntersectingContextsException
+ */
+ public synchronized Key getAtMostOneMappingWithLeftKey(Context[] contexts, Key leftKey)
+ throws IntersectingContextsException
+ {
+ Key result = null;
+ Context resultContext = null;
+ for (Context c : contexts)
+ {
+ BijectionMap<Key, Key> map = maps.get(c);
+ if (map==null) continue;
+ Key value = map.getRight(leftKey);
+ if (value==null) continue;
+ if (result!=null) throw new IntersectingContextsException(resultContext, value, result);
+ result = value;
+ resultContext = c;
+ }
+
+ return result;
+ }
+
+ /**
+ * Get left value with right key
+ * @param contexts effective contexts
+ * @param rightKey
+ * @return a single left value or null
+ * @throws IntersectingContextsException
+ */
+ public synchronized Key getAtMostOneMappingWithRightKey(Context[] contexts, Key rightKey)
+ throws IntersectingContextsException
+ {
+ Key result = null;
+ Context resultContext = null;
+ for (Context c : contexts)
+ {
+ BijectionMap<Key, Key> map = maps.get(c);
+ if (map==null) continue;
+ Key value = map.getLeft(rightKey);
+ if (value==null) continue;
+ if (result!=null) throw new IntersectingContextsException(resultContext, value, result);
+ result = value;
+ resultContext = c;
+ }
+
+ return result;
+ }
+
+ /**
+ * Get all right values with left key
+ * @param contexts effective contexts
+ * @param leftKey
+ * @return a single right value or null
+ * @throws IntersectingContextsException
+ */
+ public synchronized Set<Key> getMappingWithLeftKey(Context[] contexts, Key leftKey)
+ throws IntersectingContextsException
+ {
+ Set<Key> result = new HashSet<Key>();
+ for (Context c : contexts)
+ {
+ BijectionMap<Key, Key> map = maps.get(c);
+ if (map==null) continue;
+ Key value = map.getRight(leftKey);
+ if (value==null) continue;
+ result.add(value);
+ }
+ return result;
+ }
+
+ /**
+ * Get all left values with right key
+ * @param contexts effective contexts
+ * @param rightKey
+ * @return a single left value or null
+ * @throws IntersectingContextsException
+ */
+ public synchronized Set<Key> getMappingWithRightKey(Context[] contexts, Key rightKey)
+ throws IntersectingContextsException
+ {
+ Set<Key> result = new HashSet<Key>();
+ for (Context c : contexts)
+ {
+ BijectionMap<Key, Key> map = maps.get(c);
+ if (map==null) continue;
+ Key value = map.getLeft(rightKey);
+ if (value==null) continue;
+ result.add(value);
+ }
+ return result;
+ }
+
+ private synchronized BijectionMap<Key, Key> getOrCreateMap(Context context)
+ {
+ BijectionMap<Key, Key> result = maps.get(context);
+ if (result!=null) return result;
+ result = new BijectionMap<Key, Key>();
+ maps.put(context, result);
+ return result;
+ }
+
+ public synchronized void addMapToContext(Context context, BijectionMap<Key, Key> map)
+ {
+ BijectionMap<Key, Key> m = getOrCreateMap(context);
+ m.addAll(map);
+ }
+
+ public synchronized Set<Context> getContexts()
+ {
+ return Collections.unmodifiableSet(maps.keySet());
+ }
+
+ public synchronized Set<Key> getLeftKeys(Context context)
+ {
+ BijectionMap<Key, Key> map = maps.get(context);
+ if (map==null) return null;
+ return Collections.unmodifiableSet(map.getLeftSet());
+ }
+
+ public synchronized Set<Key> getRightKeys(Context context)
+ {
+ BijectionMap<Key, Key> map = maps.get(context);
+ if (map==null) return null;
+ return Collections.unmodifiableSet(map.getRightSet());
+ }
+
+ public synchronized Set<Key> getAllLeftKeys()
+ {
+ Set<Key> result = new HashSet<Key>();
+ for (Context context : getContexts())
+ result.addAll(getLeftKeys(context));
+ return result;
+ }
+
+ public synchronized Set<Key> getAllRightKeys()
+ {
+ Set<Key> result = new HashSet<Key>();
+ for (Context context : getContexts())
+ result.addAll(getRightKeys(context));
+ return result;
+ }
+
+ @Override
+ public String toString() {
+ int count = 0;
+ StringBuilder sb = new StringBuilder();
+ sb.append("[");
+ for (Entry<Context, BijectionMap<Key, Key>> e : maps.entrySet())
+ {
+ if (count++>0) sb.append(", ");
+ sb.append((e.getKey()==null?"null":e.getKey().toString()));
+ sb.append("=");
+ sb.append(e.getValue().toString());
+ }
+ sb.append("]");
+ return sb.toString();
+ }
+
+}
Code Review / simantics / platform.git / blobdiff