Differential D4006 Diff 14145 java/src/main/java/org/softwareheritage/graph/SwhLabel.java

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Standalone View

				package org.softwareheritage.graph;

				/**
				* Wrapper class to store the edge labels of the graph. Labels can be encoded in a single long type.
				*
				* @author The Software Heritage developers
				*/
				public class SwhLabel {
				public long filenameId;
				public int permission;

				public SwhLabel(long filenameId, int permission)
				{
				this.filenameId = filenameId;
				this.permission = permission;
				}

				public static SwhLabel fromEncoded(long labelEncoded)
				{
				long filenameId = labelEncoded >> SwhPerm.TOTAL_NB_BITS;
				int permission = (int) (labelEncoded & ((1 << SwhPerm.TOTAL_NB_BITS) - 1));
				return new SwhLabel(filenameId, permission);
				}

				public static long toEncoded(SwhLabel label)
				{
				long labelEncoded = (label.filenameId << SwhPerm.TOTAL_NB_BITS) + label.permission;
				return labelEncoded;
				}
				}