tikhomirov@17: /*
tikhomirov@74:  * Copyright (c) 2010-2011 TMate Software Ltd
tikhomirov@74:  *  
tikhomirov@74:  * This program is free software; you can redistribute it and/or modify
tikhomirov@74:  * it under the terms of the GNU General Public License as published by
tikhomirov@74:  * the Free Software Foundation; version 2 of the License.
tikhomirov@74:  *
tikhomirov@74:  * This program is distributed in the hope that it will be useful,
tikhomirov@74:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
tikhomirov@74:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
tikhomirov@74:  * GNU General Public License for more details.
tikhomirov@74:  *
tikhomirov@74:  * For information on how to redistribute this software under
tikhomirov@74:  * the terms of a license other than GNU General Public License
tikhomirov@74:  * contact TMate Software at support@svnkit.com
tikhomirov@2:  */
tikhomirov@74: package org.tmatesoft.hg.repo;
tikhomirov@2: 
tikhomirov@74: import static org.tmatesoft.hg.repo.HgRepository.TIP;
tikhomirov@74: 
tikhomirov@74: import org.tmatesoft.hg.core.Nodeid;
tikhomirov@74: import org.tmatesoft.hg.core.Path;
tikhomirov@74: 
tikhomirov@5: 
tikhomirov@17: 
tikhomirov@2: /**
tikhomirov@2:  * ? name:HgFileNode?
tikhomirov@74:  *
tikhomirov@74:  * @author Artem Tikhomirov
tikhomirov@74:  * @author TMate Software Ltd.
tikhomirov@2:  */
tikhomirov@2: public class HgDataFile extends Revlog {
tikhomirov@2: 
tikhomirov@3: 	// absolute from repo root?
tikhomirov@3: 	// slashes, unix-style?
tikhomirov@3: 	// repo location agnostic, just to give info to user, not to access real storage
tikhomirov@74: 	private final Path path;
tikhomirov@2: 	
tikhomirov@74: 	/*package-local*/HgDataFile(HgRepository hgRepo, Path path, RevlogStream content) {
tikhomirov@21: 		super(hgRepo, content);
tikhomirov@3: 		this.path = path;
tikhomirov@3: 	}
tikhomirov@3: 	
tikhomirov@3: 	public boolean exists() {
tikhomirov@3: 		return content != null; // XXX need better impl
tikhomirov@2: 	}
tikhomirov@2: 
tikhomirov@74: 	public Path getPath() {
tikhomirov@2: 		return path; // hgRepo.backresolve(this) -> name?
tikhomirov@2: 	}
tikhomirov@2: 
tikhomirov@22: 	public int length(Nodeid nodeid) {
tikhomirov@49: 		return content.dataLength(getLocalRevisionNumber(nodeid));
tikhomirov@22: 	}
tikhomirov@22: 
tikhomirov@2: 	public byte[] content() {
tikhomirov@2: 		return content(TIP);
tikhomirov@2: 	}
tikhomirov@22: 
tikhomirov@3: 	public void history(Changeset.Inspector inspector) {
tikhomirov@48: 		history(0, content.revisionCount() - 1, inspector);
tikhomirov@48: 	}
tikhomirov@48: 
tikhomirov@48: 	public void history(int start, int end, Changeset.Inspector inspector) {
tikhomirov@3: 		if (!exists()) {
tikhomirov@3: 			throw new IllegalStateException("Can't get history of invalid repository file node"); 
tikhomirov@3: 		}
tikhomirov@48: 		final int[] commitRevisions = new int[end - start + 1];
tikhomirov@3: 		Revlog.Inspector insp = new Revlog.Inspector() {
tikhomirov@3: 			int count = 0;
tikhomirov@3: 			
tikhomirov@3: 			public void next(int revisionNumber, int actualLen, int baseRevision, int linkRevision, int parent1Revision, int parent2Revision, byte[] nodeid, byte[] data) {
tikhomirov@3: 				commitRevisions[count++] = linkRevision;
tikhomirov@3: 			}
tikhomirov@3: 		};
tikhomirov@48: 		content.iterate(start, end, false, insp);
tikhomirov@3: 		getRepo().getChangelog().range(inspector, commitRevisions);
tikhomirov@3: 	}
tikhomirov@2: }