--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/org/tmatesoft/hg/repo/HgDataFile.java	Mon Jan 24 03:14:45 2011 +0100
@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2010-2011 TMate Software Ltd
+ *  
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * For information on how to redistribute this software under
+ * the terms of a license other than GNU General Public License
+ * contact TMate Software at support@svnkit.com
+ */
+package org.tmatesoft.hg.repo;
+
+import static org.tmatesoft.hg.repo.HgRepository.TIP;
+
+import org.tmatesoft.hg.core.Nodeid;
+import org.tmatesoft.hg.core.Path;
+
+
+
+/**
+ * ? name:HgFileNode?
+ *
+ * @author Artem Tikhomirov
+ * @author TMate Software Ltd.
+ */
+public class HgDataFile extends Revlog {
+
+	// absolute from repo root?
+	// slashes, unix-style?
+	// repo location agnostic, just to give info to user, not to access real storage
+	private final Path path;
+	
+	/*package-local*/HgDataFile(HgRepository hgRepo, Path path, RevlogStream content) {
+		super(hgRepo, content);
+		this.path = path;
+	}
+	
+	public boolean exists() {
+		return content != null; // XXX need better impl
+	}
+
+	public Path getPath() {
+		return path; // hgRepo.backresolve(this) -> name?
+	}
+
+	public int length(Nodeid nodeid) {
+		return content.dataLength(getLocalRevisionNumber(nodeid));
+	}
+
+	public byte[] content() {
+		return content(TIP);
+	}
+
+	public void history(Changeset.Inspector inspector) {
+		history(0, content.revisionCount() - 1, inspector);
+	}
+
+	public void history(int start, int end, Changeset.Inspector inspector) {
+		if (!exists()) {
+			throw new IllegalStateException("Can't get history of invalid repository file node"); 
+		}
+		final int[] commitRevisions = new int[end - start + 1];
+		Revlog.Inspector insp = new Revlog.Inspector() {
+			int count = 0;
+			
+			public void next(int revisionNumber, int actualLen, int baseRevision, int linkRevision, int parent1Revision, int parent2Revision, byte[] nodeid, byte[] data) {
+				commitRevisions[count++] = linkRevision;
+			}
+		};
+		content.iterate(start, end, false, insp);
+		getRepo().getChangelog().range(inspector, commitRevisions);
+	}
+}