X-Git-Url: https://gerrit.simantics.org/r/gitweb?p=simantics%2Fplatform.git;a=blobdiff_plain;f=bundles%2Forg.simantics.db.procore%2Fsrc%2Forg%2Fsimantics%2Fdb%2Fprocore%2Fcluster%2FClusterMap.java;fp=bundles%2Forg.simantics.db.procore%2Fsrc%2Forg%2Fsimantics%2Fdb%2Fprocore%2Fcluster%2FClusterMap.java;h=2962100d5e06498c5fc57336246eaceea7a6df4b;hp=0000000000000000000000000000000000000000;hb=969bd23cab98a79ca9101af33334000879fb60c5;hpb=866dba5cd5a3929bbeae85991796acb212338a08

diff --git a/bundles/org.simantics.db.procore/src/org/simantics/db/procore/cluster/ClusterMap.java b/bundles/org.simantics.db.procore/src/org/simantics/db/procore/cluster/ClusterMap.java
new file mode 100644
index 000000000..2962100d5
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+++ b/bundles/org.simantics.db.procore/src/org/simantics/db/procore/cluster/ClusterMap.java
@@ -0,0 +1,95 @@
+/*******************************************************************************
+ * 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.db.procore.cluster;
+
+import gnu.trove.map.hash.TObjectIntHashMap;
+
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.impl.ClusterTraitsBase;
+import org.simantics.db.service.ClusterUID;
+import org.simantics.db.service.ResourceUID;
+
+public class ClusterMap {
+    private ForeignTable foreignTable;
+    //private FlatTable flatTable;
+    private TObjectIntHashMap<ClusterUID> hashMap;
+    public ClusterMap(ForeignTable foreignTable, FlatTable flatTable) {
+        this.foreignTable = foreignTable;
+        //this.flatTable = flatTable;
+        hashMap = null;
+    }
+    public void compact() {
+        if(hashMap == null)
+            return;
+        hashMap.compact();
+    }
+    /*
+     * 13 bytes for each element. Approx capacity = 3 * size
+     */
+    public int getUsedSpace() {
+        if(hashMap == null)
+            return 0;
+        return 3 * 13 * hashMap.size();
+    }
+    public int getForeignResourceIndex(int reference)
+    throws DatabaseException {
+        if (ClusterTraits.isFlat(reference))
+            throw new DatabaseException("Flat reference is not supported yet.");
+        else {
+            return ClusterTraits.getResourceIndexFromForeignReference(reference);
+        }
+    }
+    public final ResourceUID getResourceUID(int reference) throws DatabaseException {
+        if (ClusterTraits.isFlat(reference))
+            throw new DatabaseException("Flat reference is not supported yet. reference=" + reference);
+        else {
+            int foreignIndex = ClusterTraits.getForeignIndexFromReference(reference);
+            return foreignTable.getResourceUID(foreignIndex);
+        }
+    }
+    public int getForeignReferenceOrCreateByResourceKey(int resourceKey, ClusterUID clusterUID)
+    throws DatabaseException {
+        int resourceIndex = ClusterTraits.getResourceIndexFromResourceKey(resourceKey);
+        return getForeignReferenceOrCreateByResourceIndex(resourceIndex, clusterUID);
+    }
+    public int getForeignReferenceOrCreateByResourceIndex(int resourceIndex, ClusterUID clusterUID)
+    throws DatabaseException {
+        if (ClusterTraitsBase.isIllegalResourceIndex(resourceIndex))
+            throw new DatabaseException("Illegal resource index=" + resourceIndex + ".");
+        if (null == hashMap)
+            hashMap = foreignTable.getHashMap();
+        int foreignIndex = hashMap.get(clusterUID);
+        if (0 == foreignIndex) {
+            foreignIndex = foreignTable.createForeign(clusterUID.toRID(resourceIndex));
+            hashMap.put(clusterUID, foreignIndex);
+        }
+        return ClusterTraits.createForeignReference(foreignIndex, resourceIndex); 
+    }
+    public int getForeignReferenceOrZero(int resourceIndex, ClusterUID clusterUID)
+    throws DatabaseException {
+        // This is guaranteed by implementation
+//        if(clusterId == 1) return (resourceIndex<<16) + 0x80000001;
+        //return ClusterTraits.createForeignReference(1, resourceIndex); 
+//        new Exception("getForeignReferenceOrZero " + clusterId).printStackTrace();
+        if (null == hashMap)
+            hashMap = foreignTable.getHashMap();
+        if (ClusterUID.Null.equals(clusterUID))
+            throw new DatabaseException("Illegal cluster uid " + clusterUID);
+        if (0 == resourceIndex)
+            throw new DatabaseException("Illegal resource index " + resourceIndex);
+        int foreignIndex = hashMap.get(clusterUID);
+        if (0 == foreignIndex)
+            return 0;
+        //System.err.println("foreignIndex for " + clusterId + " = " + foreignIndex);
+        return ClusterTraits.createForeignReference(foreignIndex, resourceIndex); 
+    }
+}