bundles/org.simantics.db.procore/src/org/simantics/db/procore/cluster/ForeignTableSmall.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
   3  * in Industry THTH ry.\r
   4  * All rights reserved. This program and the accompanying materials\r
   5  * are made available under the terms of the Eclipse Public License v1.0\r
   6  * which accompanies this distribution, and is available at\r
   7  * http://www.eclipse.org/legal/epl-v10.html\r
   8  *\r
   9  * Contributors:\r
  10  *     VTT Technical Research Centre of Finland - initial API and implementation\r
  11  *******************************************************************************/\r
  12 package org.simantics.db.procore.cluster;\r
  13 \r
  14 import org.simantics.db.exception.DatabaseException;\r
  15 import org.simantics.db.impl.ClusterBase;\r
  16 import org.simantics.db.impl.ClusterI;\r
  17 import org.simantics.db.impl.ClusterI.Procedure;\r
  18 import org.simantics.db.impl.ClusterSupport;\r
  19 import org.simantics.db.impl.ClusterTraitsBase;\r
  20 import org.simantics.db.impl.IClusterTable;\r
  21 import org.simantics.db.impl.Modifier;\r
  22 import org.simantics.db.impl.Table;\r
  23 import org.simantics.db.impl.TableFactory;\r
  24 import org.simantics.db.service.ClusterUID;\r
  25 import org.simantics.db.service.ResourceUID;\r
  26 \r
  27 import gnu.trove.map.hash.TIntShortHashMap;\r
  28 \r
  29 final public class ForeignTableSmall extends Table<long[]>\r
  30 {\r
  31     private IClusterTable clusterTable;\r
  32     public ForeignTableSmall(ClusterBase sizeListener, int[] header, int headerBase) {\r
  33         super(TableFactory.getLongFactory(), sizeListener, header, headerBase);\r
  34         this.clusterTable = sizeListener.getClusterTable();\r
  35     }\r
  36     public ForeignTableSmall(ClusterBase sizeListener, int[] header, int headerBase, long[] longs) {\r
  37         super(TableFactory.getLongFactory(), sizeListener, header, headerBase, longs);\r
  38         this.clusterTable = sizeListener.getClusterTable();\r
  39     }\r
  40     public int getUsedSize() {\r
  41         return getTableCount();\r
  42     }\r
  43     static long rmTime = 0;\r
  44     public TIntShortHashMap getResourceHashMap()\r
  45     throws DatabaseException {\r
  46 //        long start = System.nanoTime();\r
  47         int ELEMENT_SIZE = ForeignElement.getSizeOf();\r
  48         assert(ELEMENT_SIZE == 3);\r
  49         final int TABLE_SIZE = getTableCount();\r
  50         final int FOREIGN_COUNT = getForeignCount();\r
  51         final int BASE = this.getTableBase();\r
  52         final int TOP = BASE + TABLE_SIZE * ELEMENT_SIZE;\r
  53         long[] table = this.getTable();\r
  54         int count = 0;\r
  55         int index = ZERO_SHIFT;\r
  56         \r
  57         long firstCache = 0;\r
  58         long secondCache = 0;\r
  59         int clusterKeyCache = 0;\r
  60         \r
  61         TIntShortHashMap hm = new TIntShortHashMap(FOREIGN_COUNT);\r
  62         for (int i=BASE; i<TOP && count<FOREIGN_COUNT;\r
  63         i+=ELEMENT_SIZE, ++index) {\r
  64             \r
  65             if (0 == table[i] && 0 == table[i+1] && 0 == table[i+2])\r
  66                 continue; // element has been deleted\r
  67             \r
  68             long first = table[i];\r
  69             long second = table[i+1];\r
  70             long third = table[i+2];\r
  71             \r
  72             int clusterKey = 0;\r
  73             if(firstCache == first && secondCache == second) {\r
  74                 clusterKey = clusterKeyCache;\r
  75             }\r
  76             if(clusterKey == 0) {\r
  77                 clusterKey = clusterTable.getClusterKeyByUID(first, second);\r
  78 //                cluster = clusterTable.getClusterByClusterUIDOrMakeProxy(ClusterUID.make(first, second));\r
  79                 clusterKeyCache = clusterKey;\r
  80                 firstCache = first;\r
  81                 secondCache =second;\r
  82             }\r
  83             \r
  84             int resourceKey = ClusterTraits.createResourceKey(clusterKey, (int)third);\r
  85             hm.put(resourceKey, ClusterTraitsSmall.makeForeignRef((short)index));\r
  86             ++count;\r
  87             \r
  88         }\r
  89         if (FOREIGN_COUNT != hm.size())\r
  90             throw new DatabaseException("Foreign table has been corrupted. count=" + FOREIGN_COUNT + "size=" + hm.size());\r
  91 //        rmTime += System.nanoTime()-start;\r
  92 //        System.err.println("rmTime: " + 1e-9*rmTime+"s.");\r
  93         return hm;\r
  94     }\r
  95     short createForeign(int resourceKey, ClusterUID cuid) {\r
  96         int index = getTableCount();\r
  97         int size = ForeignElement.getSizeOf();\r
  98         int foreignIndex = createNewElement(size);\r
  99         int realIndex = checkIndexAndGetRealIndex(foreignIndex, size);\r
 100         short resourceIndex = ClusterTraitsBase.getResourceIndexFromResourceKeyNoThrow(resourceKey);\r
 101         //ClusterUID cuid = clusterTable.getClusterUIDByResourceKey(resourceKey);\r
 102         ResourceUID uid = cuid.toRID(resourceIndex);\r
 103         ForeignElement.constructForeign(getTable(), realIndex, uid);\r
 104         incForeignCount();\r
 105         return ClusterTraitsSmall.makeForeignRef((short)(index + ZERO_SHIFT));\r
 106     }\r
 107     short createForeign(int resourceKey) {\r
 108         int index = getTableCount();\r
 109         int size = ForeignElement.getSizeOf();\r
 110         int foreignIndex = createNewElement(size);\r
 111         int realIndex = checkIndexAndGetRealIndex(foreignIndex, size);\r
 112         short resourceIndex = ClusterTraitsBase.getResourceIndexFromResourceKeyNoThrow(resourceKey);\r
 113         ClusterI cluster = clusterTable.getClusterProxyByResourceKey(resourceKey);\r
 114         //ClusterI cluster = clusterTable.getClusterByResourceKey(resourceKey);\r
 115         ClusterUID cuid = cluster.getClusterUID();\r
 116         ResourceUID uid = cuid.toRID(resourceIndex);\r
 117         ForeignElement.constructForeign(getTable(), realIndex, uid);\r
 118         incForeignCount();\r
 119         return ClusterTraitsSmall.makeForeignRef((short)(index + ZERO_SHIFT));\r
 120     }\r
 121     void deleteForeign(int foreignIndex) {\r
 122         int realIndex = checkIndexAndGetRealIndex(foreignIndex);\r
 123         ForeignElement.destructForeign(getTable(), realIndex);\r
 124         decForeignCount();\r
 125     }\r
 126     public final ResourceUID getResourceUID(int foreignIndex) {\r
 127         return ForeignElement.getResourceUID(table, checkIndexAndGetRealIndex(foreignIndex)); \r
 128     }\r
 129     final void fillResourceUID(int foreignIndex, ClusterSmall cluster) {\r
 130         ForeignElement.fillResourceUID(table, checkIndexAndGetRealIndex(foreignIndex), cluster); \r
 131     }\r
 132     int getForeignCount() {\r
 133         return getExtra(FOREIGN_COUNT_INDEX);\r
 134     }\r
 135     private static final int FOREIGN_COUNT_INDEX = 0;\r
 136     private int incForeignCount() {\r
 137         int count = getExtra(FOREIGN_COUNT_INDEX) + 1;\r
 138         setExtra(FOREIGN_COUNT_INDEX, count);\r
 139         return count;\r
 140     }\r
 141     private int decForeignCount() {\r
 142         int count = getExtra(FOREIGN_COUNT_INDEX) - 1;\r
 143         setExtra(FOREIGN_COUNT_INDEX, count);\r
 144         return count;\r
 145     }\r
 146     private int checkIndexAndGetRealIndex(int foreignIndex) {\r
 147         int index = (foreignIndex - ZERO_SHIFT) * ForeignElement.getSizeOf() + ZERO_SHIFT;\r
 148         int realIndex = checkIndexAndGetRealIndex(index, ForeignElement.getSizeOf());\r
 149         return realIndex;\r
 150     }\r
 151     @Override\r
 152     public <Context> boolean foreach(int setIndex, Procedure procedure, Context context,\r
 153             ClusterSupport support, Modifier modifier) throws DatabaseException {\r
 154         throw new UnsupportedOperationException();\r
 155     }\r
 156 }\r