Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.db.procore / src / org / simantics / db / procore / cluster / ForeignTableSmall.java

diff --git a/bundles/org.simantics.db.procore/src/org/simantics/db/procore/cluster/ForeignTableSmall.java b/bundles/org.simantics.db.procore/src/org/simantics/db/procore/cluster/ForeignTableSmall.java
new file mode 100644 (file)
index 0000000..6c9db07
--- /dev/null
+++ b/bundles/org.simantics.db.procore/src/org/simantics/db/procore/cluster/ForeignTableSmall.java
@@ -0,0 +1,156 @@
+/*******************************************************************************\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 org.simantics.db.exception.DatabaseException;\r
+import org.simantics.db.impl.ClusterBase;\r
+import org.simantics.db.impl.ClusterI;\r
+import org.simantics.db.impl.ClusterI.Procedure;\r
+import org.simantics.db.impl.ClusterSupport;\r
+import org.simantics.db.impl.ClusterTraitsBase;\r
+import org.simantics.db.impl.IClusterTable;\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.service.ClusterUID;\r
+import org.simantics.db.service.ResourceUID;\r
+\r
+import gnu.trove.map.hash.TIntShortHashMap;\r
+\r
+final public class ForeignTableSmall extends Table<long[]>\r
+{\r
+    private IClusterTable clusterTable;\r
+    public ForeignTableSmall(ClusterBase sizeListener, int[] header, int headerBase) {\r
+        super(TableFactory.getLongFactory(), sizeListener, header, headerBase);\r
+        this.clusterTable = sizeListener.getClusterTable();\r
+    }\r
+    public ForeignTableSmall(ClusterBase sizeListener, int[] header, int headerBase, long[] longs) {\r
+        super(TableFactory.getLongFactory(), sizeListener, header, headerBase, longs);\r
+        this.clusterTable = sizeListener.getClusterTable();\r
+    }\r
+    public int getUsedSize() {\r
+        return getTableCount();\r
+    }\r
+    static long rmTime = 0;\r
+    public TIntShortHashMap getResourceHashMap()\r
+    throws DatabaseException {\r
+//        long start = System.nanoTime();\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
+        \r
+        long firstCache = 0;\r
+        long secondCache = 0;\r
+        int clusterKeyCache = 0;\r
+        \r
+        TIntShortHashMap hm = new TIntShortHashMap(FOREIGN_COUNT);\r
+        for (int i=BASE; i<TOP && count<FOREIGN_COUNT;\r
+        i+=ELEMENT_SIZE, ++index) {\r
+            \r
+            if (0 == table[i] && 0 == table[i+1] && 0 == table[i+2])\r
+                continue; // element has been deleted\r
+            \r
+            long first = table[i];\r
+            long second = table[i+1];\r
+            long third = table[i+2];\r
+            \r
+            int clusterKey = 0;\r
+            if(firstCache == first && secondCache == second) {\r
+                clusterKey = clusterKeyCache;\r
+            }\r
+            if(clusterKey == 0) {\r
+                clusterKey = clusterTable.getClusterKeyByUID(first, second);\r
+//                cluster = clusterTable.getClusterByClusterUIDOrMakeProxy(ClusterUID.make(first, second));\r
+                clusterKeyCache = clusterKey;\r
+                firstCache = first;\r
+                secondCache =second;\r
+            }\r
+            \r
+            int resourceKey = ClusterTraits.createResourceKey(clusterKey, (int)third);\r
+            hm.put(resourceKey, ClusterTraitsSmall.makeForeignRef((short)index));\r
+            ++count;\r
+            \r
+        }\r
+        if (FOREIGN_COUNT != hm.size())\r
+            throw new DatabaseException("Foreign table has been corrupted. count=" + FOREIGN_COUNT + "size=" + hm.size());\r
+//        rmTime += System.nanoTime()-start;\r
+//        System.err.println("rmTime: " + 1e-9*rmTime+"s.");\r
+        return hm;\r
+    }\r
+    short createForeign(int resourceKey, ClusterUID cuid) {\r
+        int index = getTableCount();\r
+        int size = ForeignElement.getSizeOf();\r
+        int foreignIndex = createNewElement(size);\r
+        int realIndex = checkIndexAndGetRealIndex(foreignIndex, size);\r
+        short resourceIndex = ClusterTraitsBase.getResourceIndexFromResourceKeyNoThrow(resourceKey);\r
+        //ClusterUID cuid = clusterTable.getClusterUIDByResourceKey(resourceKey);\r
+        ResourceUID uid = cuid.toRID(resourceIndex);\r
+        ForeignElement.constructForeign(getTable(), realIndex, uid);\r
+        incForeignCount();\r
+        return ClusterTraitsSmall.makeForeignRef((short)(index + ZERO_SHIFT));\r
+    }\r
+    short createForeign(int resourceKey) {\r
+        int index = getTableCount();\r
+        int size = ForeignElement.getSizeOf();\r
+        int foreignIndex = createNewElement(size);\r
+        int realIndex = checkIndexAndGetRealIndex(foreignIndex, size);\r
+        short resourceIndex = ClusterTraitsBase.getResourceIndexFromResourceKeyNoThrow(resourceKey);\r
+        ClusterI cluster = clusterTable.getClusterProxyByResourceKey(resourceKey);\r
+        //ClusterI cluster = clusterTable.getClusterByResourceKey(resourceKey);\r
+        ClusterUID cuid = cluster.getClusterUID();\r
+        ResourceUID uid = cuid.toRID(resourceIndex);\r
+        ForeignElement.constructForeign(getTable(), realIndex, uid);\r
+        incForeignCount();\r
+        return ClusterTraitsSmall.makeForeignRef((short)(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
+    final void fillResourceUID(int foreignIndex, ClusterSmall cluster) {\r
+        ForeignElement.fillResourceUID(table, checkIndexAndGetRealIndex(foreignIndex), cluster); \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