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%2FClusterTraits.java;fp=bundles%2Forg.simantics.db.procore%2Fsrc%2Forg%2Fsimantics%2Fdb%2Fprocore%2Fcluster%2FClusterTraits.java;h=d787ef89bc95b9b80802f67c620be242fb7eec63;hp=0000000000000000000000000000000000000000;hb=969bd23cab98a79ca9101af33334000879fb60c5;hpb=866dba5cd5a3929bbeae85991796acb212338a08

diff --git a/bundles/org.simantics.db.procore/src/org/simantics/db/procore/cluster/ClusterTraits.java b/bundles/org.simantics.db.procore/src/org/simantics/db/procore/cluster/ClusterTraits.java
new file mode 100644
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--- /dev/null
+++ b/bundles/org.simantics.db.procore/src/org/simantics/db/procore/cluster/ClusterTraits.java
@@ -0,0 +1,107 @@
+/*******************************************************************************
+ * 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 org.simantics.db.exception.DatabaseException;
+import org.simantics.db.impl.ClusterI;
+import org.simantics.db.impl.ClusterTraitsBase;
+
+
+public final class ClusterTraits extends ClusterTraitsBase {
+    private static final int FOREIGN_INDEX_BITS = 16;
+    private static final int FOREIGN_INDEX_MAX = (1<<FOREIGN_INDEX_BITS)-1;
+    private static final int CLUSTER_INDEX_BITS = 16;
+    private static final int CLUSTER_INDEX_MAX =  (1<<CLUSTER_INDEX_BITS)-1;
+    private static final int TYPE_BITS = 2;
+    private static final int NOTYPE_BITS = 32 - TYPE_BITS;
+//    private static final int CLUSTER_RESERVED_BITS = 15;
+//    private static final long CLUSTER_RESERVED_BITS2ZERO = ((long)1 << CLUSTER_RESERVED_BITS) - 1; 
+    public static final int createForeignReference(int foreignIndex, int resourceIndex)
+    throws DatabaseException {
+        if (foreignIndex < 1 || foreignIndex > FOREIGN_INDEX_MAX)
+            throw new DatabaseException("Illegal foreign index " + foreignIndex);
+        if (isIllegalResourceIndex(resourceIndex))
+            throw new DatabaseException("Illegal resource index " + resourceIndex);
+        return (resourceIndex<<FOREIGN_INDEX_BITS | foreignIndex)| 0x80000000;
+    }
+    public static int referenceGetType(int ref) {
+        return ref >>> NOTYPE_BITS;
+    }
+    public static final boolean isFlat(int reference) {
+        return reference < 0 && (reference & 0x40000000) != 0;
+    }
+    public static final boolean isLocal(int reference) {
+        return (reference & 0xC0000000) == 0;
+    }
+    public static final int getForeignIndexFromReference(int reference)
+    throws DatabaseException {
+        int foreignIndex = reference & 0x0000FFFF;
+        if (0 == foreignIndex)
+            throw new DatabaseException("Illegal foreign index " + foreignIndex);
+        return foreignIndex;
+    }
+    public static final int getResourceIndexFromForeignReference(int reference) 
+    throws DatabaseException {
+        int resourceIndex = (reference & 0x7FFFFFFF) >> FOREIGN_INDEX_BITS;
+        if (isIllegalResourceIndex(resourceIndex))
+            throw new DatabaseException("Illegal foreign reference " + reference);
+        return resourceIndex;
+    }
+    public static final boolean statementIndexIsDirect(int index) {
+        return (index & 0xC0000000) != 0x40000000;
+    }
+    public static final int statementIndexMake(int index)
+    throws DatabaseException {
+        assert(index > 0);
+        if ((index & 0xC0000000) != 0)
+            throw new DatabaseException("Illegal statement index " + index);
+        return index | 0x40000000;
+    }
+    public static final int statementIndexGet(int index)
+    throws DatabaseException {
+        if ((index & 0xC0000000) == 0x40000000)
+            return index & 0x3FFFFFFF;
+        else
+            return index;
+    }
+    public static boolean completeReferenceIsLocal(int completeRef) {
+        boolean complete = (completeRef & 0xC0000000) != 0;
+        return complete && ((completeRef & 0x0000FFFF) == 0);
+    }
+    public static boolean completeReferenceIsMultiple(int completeRef) {
+        boolean complete = (completeRef & 0xC0000000) != 0;
+        return !complete && (completeRef != 0);
+    }
+    public static int completeReferenceGetResourceIndex(int completeRef) {
+        int low = (completeRef & 0x3FFFFFFF) >>> CLUSTER_INDEX_BITS;
+        return low & 0x00003FFFF;
+    }
+    public static int completeReferenceGetForeignIndex(int completeRef) {
+        return completeRef & 0x0000FFFF;
+    }
+    public static ClusterI.CompleteTypeEnum completeReferenceGetType(int completeRef) {
+        return ClusterI.CompleteTypeEnum.make(completeRef >>> NOTYPE_BITS);
+    }
+    public static int completeReferenceMake(int type, int resourceIndex, int clusterIndex) {
+        assert(type < (1<<TYPE_BITS));
+        assert(!isIllegalResourceIndex(resourceIndex));
+        assert(clusterIndex <= CLUSTER_INDEX_MAX);
+        int ref = (type << NOTYPE_BITS) | (resourceIndex << CLUSTER_INDEX_BITS) | clusterIndex;
+        return ref;
+    }
+    public static int completeReferenceMake(int type, int setIndex) {
+        assert(type < (1<<TYPE_BITS));
+        assert(setIndex < (1<<NOTYPE_BITS));
+        int ref = (type << NOTYPE_BITS) | setIndex;
+        return ref;
+    }
+}