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/*
* Copyright (C) 2010, Christian Halstrick <christian.halstrick@sap.com>
* and other copyright owners as documented in the project's IP log.
*
* This program and the accompanying materials are made available
* under the terms of the Eclipse Distribution License v1.0 which
* accompanies this distribution, is reproduced below, and is
* available at http://www.eclipse.org/org/documents/edl-v10.php
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* - Neither the name of the Eclipse Foundation, Inc. nor the
* names of its contributors may be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.eclipse.jgit.treewalk;
import java.io.File;
import java.util.SortedSet;
import java.util.TreeSet;
import org.eclipse.jgit.lib.Config;
import org.eclipse.jgit.lib.ObjectReader;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.util.FS;
/**
* A {@link FileTreeIterator} used in tests which allows to specify explicitly
* what will be returned by {@link #getEntryLastModified()}. This allows to
* write tests where certain files have to have the same modification time.
* <p>
* This iterator is configured by a list of strictly increasing long values
* t(0), t(1), ..., t(n). For each file with a modification between t(x) and
* t(x+1) [ t(x) <= time < t(x+1) ] this iterator will report t(x). For files
* with a modification time smaller t(0) a modification time of 0 is returned.
* For files with a modification time greater or equal t(n) t(n) will be
* returned.
* <p>
* This class was written especially to test racy-git problems
*/
public class FileTreeIteratorWithTimeControl extends FileTreeIterator {
private TreeSet<Long> modTimes;
public FileTreeIteratorWithTimeControl(FileTreeIterator p, Repository repo,
TreeSet<Long> modTimes) {
super(p, repo.getWorkTree(), repo.getFS());
this.modTimes = modTimes;
}
public FileTreeIteratorWithTimeControl(FileTreeIterator p, File f, FS fs,
TreeSet<Long> modTimes) {
super(p, f, fs);
this.modTimes = modTimes;
}
public FileTreeIteratorWithTimeControl(Repository repo,
TreeSet<Long> modTimes) {
super(repo);
this.modTimes = modTimes;
}
public FileTreeIteratorWithTimeControl(File f, FS fs,
TreeSet<Long> modTimes) {
super(f, fs, new Config().get(WorkingTreeOptions.KEY));
this.modTimes = modTimes;
}
@Override
public AbstractTreeIterator createSubtreeIterator(final ObjectReader reader) {
return new FileTreeIteratorWithTimeControl(this,
((FileEntry) current()).getFile(), fs, modTimes);
}
@Override
public long getEntryLastModified() {
if (modTimes == null)
return 0;
Long cutOff = Long.valueOf(super.getEntryLastModified() + 1);
SortedSet<Long> head = modTimes.headSet(cutOff);
return head.isEmpty() ? 0 : head.last().longValue();
}
}
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