--- /dev/null
+/*******************************************************************************\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.db.procore.cluster;\r
+\r
+import gnu.trove.map.hash.TObjectIntHashMap;\r
+\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.db.impl.ClusterI.Procedure;\r
+import org.simantics.db.impl.ClusterSupport;\r
+import org.simantics.db.impl.Modifier;\r
+import org.simantics.db.impl.Table;\r
+import org.simantics.db.impl.TableFactory;\r
+import org.simantics.db.impl.TableSizeListener;\r
+import org.simantics.db.service.ClusterUID;\r
+import org.simantics.db.service.ResourceUID;\r
+\r
+final class ForeignElement {\r
+ private static final int CLUSTER_OFFSET = 0; // resourceUID\r
+ private static final int SIZE_OF = 3;\r
+\r
+ static void constructForeign(long[] table, int index, ResourceUID resourceUID) {\r
+ int i = CLUSTER_OFFSET + index;\r
+ resourceUID.toLong(table, i);\r
+ }\r
+ static void destructForeign(long[] table, int index) {\r
+ int i = CLUSTER_OFFSET + index;\r
+ table[i++] = 0;\r
+ table[i++] = 0;\r
+ table[i++] = 0;\r
+ }\r
+ static int getSizeOf() {\r
+ return SIZE_OF;\r
+ }\r
+ static ResourceUID getResourceUID(long[] table, int index) {\r
+ int i = CLUSTER_OFFSET + index;\r
+ return new ResourceUID(table, i);\r
+ }\r
+ static void fillResourceUID(long[] table, int index, ClusterSmall cluster) {\r
+ int i = CLUSTER_OFFSET + index;\r
+ cluster.clusterUID1 = table[i];\r
+ cluster.clusterUID2 = table[i+1];\r
+ cluster.executeIndex = (short)table[i+2];\r
+ }\r
+}\r
+\r
+public final class ForeignTable extends Table<long[]>\r
+{\r
+ public ForeignTable(TableSizeListener sizeListener, int[] header, int headerBase) {\r
+ super(TableFactory.getLongFactory(), sizeListener, header, headerBase);\r
+ }\r
+ public ForeignTable(TableSizeListener sizeListener, int[] header, int headerBase, long[] longs) {\r
+ super(TableFactory.getLongFactory(), sizeListener, header, headerBase, longs);\r
+ }\r
+ public int getUsedSize() {\r
+ return getTableCount();\r
+ }\r
+ TObjectIntHashMap<ClusterUID> getHashMap()\r
+ throws DatabaseException {\r
+ int ELEMENT_SIZE = ForeignElement.getSizeOf();\r
+ final int TABLE_SIZE = getTableCount();\r
+ final int FOREIGN_COUNT = getForeignCount();\r
+ final int BASE = this.getTableBase();\r
+ final int TOP = BASE + TABLE_SIZE * ELEMENT_SIZE;\r
+ long[] table = this.getTable();\r
+ int count = 0;\r
+ int index = ZERO_SHIFT;\r
+ TObjectIntHashMap<ClusterUID> hm = new TObjectIntHashMap<ClusterUID>(FOREIGN_COUNT);\r
+ for (int i=BASE; i<TOP && count<FOREIGN_COUNT;\r
+ i+=ELEMENT_SIZE, ++index) {\r
+ if (0 == table[i] && 0 == table[i+1] && 0 == table[i+2])\r
+ continue; // element has been deleted\r
+ hm.put(ClusterUID.make(table[i], table[i+1]), index);\r
+ ++count;\r
+ }\r
+ if (FOREIGN_COUNT != hm.size())\r
+ throw new DatabaseException("Foreign table has been corrupted.");\r
+ return hm;\r
+ }\r
+ TObjectIntHashMap<ResourceUID> getResourceHashMap()\r
+ throws DatabaseException {\r
+ int ELEMENT_SIZE = ForeignElement.getSizeOf();\r
+ assert(ELEMENT_SIZE == 3);\r
+ final int TABLE_SIZE = getTableCount();\r
+ final int FOREIGN_COUNT = getForeignCount();\r
+ final int BASE = this.getTableBase();\r
+ final int TOP = BASE + TABLE_SIZE * ELEMENT_SIZE;\r
+ long[] table = this.getTable();\r
+ int count = 0;\r
+ int index = ZERO_SHIFT;\r
+ TObjectIntHashMap<ResourceUID> hm = new TObjectIntHashMap<ResourceUID>(FOREIGN_COUNT);\r
+ for (int i=BASE; i<TOP && count<FOREIGN_COUNT;\r
+ i+=ELEMENT_SIZE, ++index) {\r
+ if (0 == table[i] && 0 == table[i+1] && 0 == table[i+2])\r
+ continue; // element has been deleted\r
+ hm.put(new ResourceUID(table[i], table[i+1], table[i+2]), index);\r
+ ++count;\r
+ }\r
+ if (FOREIGN_COUNT != hm.size())\r
+ throw new DatabaseException("Foreign table has been corrupted. count=" + FOREIGN_COUNT + "size=" + hm.size());\r
+ return hm;\r
+ }\r
+ int createForeign(ResourceUID uid) {\r
+ int index = getTableCount();\r
+ int size = ForeignElement.getSizeOf();\r
+ int foreignIndex = createNewElement(size);\r
+ int realIndex = checkIndexAndGetRealIndex(foreignIndex, size);\r
+ ForeignElement.constructForeign(getTable(), realIndex, uid);\r
+ incForeignCount();\r
+ return index + ZERO_SHIFT;\r
+ }\r
+ void deleteForeign(int foreignIndex) {\r
+ int realIndex = checkIndexAndGetRealIndex(foreignIndex);\r
+ ForeignElement.destructForeign(getTable(), realIndex);\r
+ decForeignCount();\r
+ }\r
+ public final ResourceUID getResourceUID(int foreignIndex) {\r
+ return ForeignElement.getResourceUID(table, checkIndexAndGetRealIndex(foreignIndex)); \r
+ }\r
+ int getForeignCount() {\r
+ return getExtra(FOREIGN_COUNT_INDEX);\r
+ }\r
+ private static final int FOREIGN_COUNT_INDEX = 0;\r
+ private int incForeignCount() {\r
+ int count = getExtra(FOREIGN_COUNT_INDEX) + 1;\r
+ setExtra(FOREIGN_COUNT_INDEX, count);\r
+ return count;\r
+ }\r
+ private int decForeignCount() {\r
+ int count = getExtra(FOREIGN_COUNT_INDEX) - 1;\r
+ setExtra(FOREIGN_COUNT_INDEX, count);\r
+ return count;\r
+ }\r
+ private int checkIndexAndGetRealIndex(int foreignIndex) {\r
+ int index = (foreignIndex - ZERO_SHIFT) * ForeignElement.getSizeOf() + ZERO_SHIFT;\r
+ int realIndex = checkIndexAndGetRealIndex(index, ForeignElement.getSizeOf());\r
+ return realIndex;\r
+ }\r
+ @Override\r
+ public <Context> boolean foreach(int setIndex, Procedure procedure, Context context,\r
+ ClusterSupport support, Modifier modifier) throws DatabaseException {\r
+ throw new UnsupportedOperationException();\r
+ }\r
+}\r