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/*
* Copyright 2011 gitblit.com.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.gitblit.utils;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.revwalk.RevWalk;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.gitblit.models.Metric;
import com.gitblit.models.RefModel;
public class MetricUtils {
private static final Logger LOGGER = LoggerFactory.getLogger(MetricUtils.class);
public static List<Metric> getDateMetrics(Repository r, boolean includeTotal, String format) {
Metric total = new Metric("TOTAL");
final Map<String, Metric> metricMap = new HashMap<String, Metric>();
if (JGitUtils.hasCommits(r)) {
final List<RefModel> tags = JGitUtils.getTags(r, -1);
final Map<ObjectId, RefModel> tagMap = new HashMap<ObjectId, RefModel>();
for (RefModel tag : tags) {
tagMap.put(tag.getReferencedObjectId(), tag);
}
try {
RevWalk walk = new RevWalk(r);
ObjectId object = r.resolve(Constants.HEAD);
RevCommit lastCommit = walk.parseCommit(object);
walk.markStart(lastCommit);
DateFormat df;
if (StringUtils.isEmpty(format)) {
// dynamically determine date format
RevCommit firstCommit = JGitUtils.getFirstCommit(r, Constants.HEAD);
int diffDays = (lastCommit.getCommitTime() - firstCommit.getCommitTime())
/ (60 * 60 * 24);
total.duration = diffDays;
if (diffDays <= 90) {
// Days
df = new SimpleDateFormat("yyyy-MM-dd");
} else if (diffDays > 90 && diffDays < 365) {
// Weeks
df = new SimpleDateFormat("yyyy-MM (w)");
} else {
// Months
df = new SimpleDateFormat("yyyy-MM");
}
} else {
// use specified date format
df = new SimpleDateFormat(format);
}
Iterable<RevCommit> revlog = walk;
for (RevCommit rev : revlog) {
Date d = JGitUtils.getCommitDate(rev);
String p = df.format(d);
if (!metricMap.containsKey(p)) {
metricMap.put(p, new Metric(p));
}
Metric m = metricMap.get(p);
m.count++;
total.count++;
if (tagMap.containsKey(rev.getId())) {
m.tag++;
total.tag++;
}
}
} catch (Throwable t) {
LOGGER.error("Failed to mine log history for date metrics", t);
}
}
List<String> keys = new ArrayList<String>(metricMap.keySet());
Collections.sort(keys);
List<Metric> metrics = new ArrayList<Metric>();
for (String key : keys) {
metrics.add(metricMap.get(key));
}
if (includeTotal) {
metrics.add(0, total);
}
return metrics;
}
public static List<Metric> getAuthorMetrics(Repository r, boolean byEmail) {
final Map<String, Metric> metricMap = new HashMap<String, Metric>();
if (JGitUtils.hasCommits(r)) {
try {
RevWalk walk = new RevWalk(r);
ObjectId object = r.resolve(Constants.HEAD);
RevCommit lastCommit = walk.parseCommit(object);
walk.markStart(lastCommit);
Iterable<RevCommit> revlog = walk;
for (RevCommit rev : revlog) {
String p;
if (byEmail) {
p = rev.getAuthorIdent().getEmailAddress();
if (StringUtils.isEmpty(p)) {
p = rev.getAuthorIdent().getName();
}
} else {
p = rev.getAuthorIdent().getName();
if (StringUtils.isEmpty(p)) {
p = rev.getAuthorIdent().getEmailAddress();
}
}
if (!metricMap.containsKey(p)) {
metricMap.put(p, new Metric(p));
}
Metric m = metricMap.get(p);
m.count++;
}
} catch (Throwable t) {
LOGGER.error("Failed to mine log history for author metrics", t);
}
}
List<String> keys = new ArrayList<String>(metricMap.keySet());
Collections.sort(keys);
List<Metric> metrics = new ArrayList<Metric>();
for (String key : keys) {
metrics.add(metricMap.get(key));
}
return metrics;
}
}
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