Migrated source code from Simantics SVN

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

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 (file)
index 0000000..d787ef8
--- /dev/null
+++ b/bundles/org.simantics.db.procore/src/org/simantics/db/procore/cluster/ClusterTraits.java
@@ -0,0 +1,107 @@
+/*******************************************************************************\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.ClusterI;\r
+import org.simantics.db.impl.ClusterTraitsBase;\r
+\r
+\r
+public final class ClusterTraits extends ClusterTraitsBase {\r
+    private static final int FOREIGN_INDEX_BITS = 16;\r
+    private static final int FOREIGN_INDEX_MAX = (1<<FOREIGN_INDEX_BITS)-1;\r
+    private static final int CLUSTER_INDEX_BITS = 16;\r
+    private static final int CLUSTER_INDEX_MAX =  (1<<CLUSTER_INDEX_BITS)-1;\r
+    private static final int TYPE_BITS = 2;\r
+    private static final int NOTYPE_BITS = 32 - TYPE_BITS;\r
+//    private static final int CLUSTER_RESERVED_BITS = 15;\r
+//    private static final long CLUSTER_RESERVED_BITS2ZERO = ((long)1 << CLUSTER_RESERVED_BITS) - 1; \r
+    public static final int createForeignReference(int foreignIndex, int resourceIndex)\r
+    throws DatabaseException {\r
+        if (foreignIndex < 1 || foreignIndex > FOREIGN_INDEX_MAX)\r
+            throw new DatabaseException("Illegal foreign index " + foreignIndex);\r
+        if (isIllegalResourceIndex(resourceIndex))\r
+            throw new DatabaseException("Illegal resource index " + resourceIndex);\r
+        return (resourceIndex<<FOREIGN_INDEX_BITS | foreignIndex)| 0x80000000;\r
+    }\r
+    public static int referenceGetType(int ref) {\r
+        return ref >>> NOTYPE_BITS;\r
+    }\r
+    public static final boolean isFlat(int reference) {\r
+        return reference < 0 && (reference & 0x40000000) != 0;\r
+    }\r
+    public static final boolean isLocal(int reference) {\r
+        return (reference & 0xC0000000) == 0;\r
+    }\r
+    public static final int getForeignIndexFromReference(int reference)\r
+    throws DatabaseException {\r
+        int foreignIndex = reference & 0x0000FFFF;\r
+        if (0 == foreignIndex)\r
+            throw new DatabaseException("Illegal foreign index " + foreignIndex);\r
+        return foreignIndex;\r
+    }\r
+    public static final int getResourceIndexFromForeignReference(int reference) \r
+    throws DatabaseException {\r
+        int resourceIndex = (reference & 0x7FFFFFFF) >> FOREIGN_INDEX_BITS;\r
+        if (isIllegalResourceIndex(resourceIndex))\r
+            throw new DatabaseException("Illegal foreign reference " + reference);\r
+        return resourceIndex;\r
+    }\r
+    public static final boolean statementIndexIsDirect(int index) {\r
+        return (index & 0xC0000000) != 0x40000000;\r
+    }\r
+    public static final int statementIndexMake(int index)\r
+    throws DatabaseException {\r
+        assert(index > 0);\r
+        if ((index & 0xC0000000) != 0)\r
+            throw new DatabaseException("Illegal statement index " + index);\r
+        return index | 0x40000000;\r
+    }\r
+    public static final int statementIndexGet(int index)\r
+    throws DatabaseException {\r
+        if ((index & 0xC0000000) == 0x40000000)\r
+            return index & 0x3FFFFFFF;\r
+        else\r
+            return index;\r
+    }\r
+    public static boolean completeReferenceIsLocal(int completeRef) {\r
+        boolean complete = (completeRef & 0xC0000000) != 0;\r
+        return complete && ((completeRef & 0x0000FFFF) == 0);\r
+    }\r
+    public static boolean completeReferenceIsMultiple(int completeRef) {\r
+        boolean complete = (completeRef & 0xC0000000) != 0;\r
+        return !complete && (completeRef != 0);\r
+    }\r
+    public static int completeReferenceGetResourceIndex(int completeRef) {\r
+        int low = (completeRef & 0x3FFFFFFF) >>> CLUSTER_INDEX_BITS;\r
+        return low & 0x00003FFFF;\r
+    }\r
+    public static int completeReferenceGetForeignIndex(int completeRef) {\r
+        return completeRef & 0x0000FFFF;\r
+    }\r
+    public static ClusterI.CompleteTypeEnum completeReferenceGetType(int completeRef) {\r
+        return ClusterI.CompleteTypeEnum.make(completeRef >>> NOTYPE_BITS);\r
+    }\r
+    public static int completeReferenceMake(int type, int resourceIndex, int clusterIndex) {\r
+        assert(type < (1<<TYPE_BITS));\r
+        assert(!isIllegalResourceIndex(resourceIndex));\r
+        assert(clusterIndex <= CLUSTER_INDEX_MAX);\r
+        int ref = (type << NOTYPE_BITS) | (resourceIndex << CLUSTER_INDEX_BITS) | clusterIndex;\r
+        return ref;\r
+    }\r
+    public static int completeReferenceMake(int type, int setIndex) {\r
+        assert(type < (1<<TYPE_BITS));\r
+        assert(setIndex < (1<<NOTYPE_BITS));\r
+        int ref = (type << NOTYPE_BITS) | setIndex;\r
+        return ref;\r
+    }\r
+}\r