com.google.gerrit.server.notedb.NoteDbUtil Maven / Gradle / Ivy
// Copyright (C) 2017 The Android Open Source Project
//
// 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.google.gerrit.server.notedb;
import com.google.common.base.CharMatcher;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSet;
import com.google.common.primitives.Ints;
import com.google.gerrit.entities.Account;
import com.google.gerrit.extensions.restapi.RestModifyView;
import com.google.gerrit.server.update.RetryingRestModifyView;
import java.sql.Timestamp;
import java.util.Optional;
import org.eclipse.jgit.lib.PersonIdent;
import org.eclipse.jgit.util.GitDateFormatter;
import org.eclipse.jgit.util.GitDateFormatter.Format;
public class NoteDbUtil {
private static final CharMatcher INVALID_FOOTER_CHARS = CharMatcher.anyOf("\r\n\0");
private static final ImmutableList PACKAGE_PREFIXES =
ImmutableList.of("com.google.gerrit.server.", "com.google.gerrit.");
private static final ImmutableSet SERVLET_NAMES =
ImmutableSet.of(
"com.google.gerrit.httpd.restapi.RestApiServlet", RetryingRestModifyView.class.getName());
/** Returns an AccountId for the given email address. */
public static Optional parseIdent(PersonIdent ident) {
String email = ident.getEmailAddress();
int at = email.indexOf('@');
if (at >= 0) {
Integer id = Ints.tryParse(email.substring(0, at));
if (id != null) {
return Optional.of(Account.id(id));
}
}
return Optional.empty();
}
public static String extractHostPartFromPersonIdent(PersonIdent ident) {
String email = ident.getEmailAddress();
int at = email.indexOf('@');
if (at >= 0) {
return email.substring(at + 1);
}
throw new IllegalArgumentException("No host part found: " + email);
}
public static String formatTime(PersonIdent ident, Timestamp t) {
GitDateFormatter dateFormatter = new GitDateFormatter(Format.DEFAULT);
// TODO(dborowitz): Use a ThreadLocal or use Joda.
PersonIdent newIdent = new PersonIdent(ident, t);
return dateFormatter.formatDate(newIdent);
}
/**
* Returns the name of the REST API handler that is in the stack trace of the caller of this
* method.
*/
static String guessRestApiHandler() {
StackTraceElement[] trace = Thread.currentThread().getStackTrace();
int i = findRestApiServlet(trace);
if (i < 0) {
return null;
}
try {
for (i--; i >= 0; i--) {
String cn = trace[i].getClassName();
Class cls = Class.forName(cn);
if (RestModifyView.class.isAssignableFrom(cls) && cls != RetryingRestModifyView.class) {
return viewName(cn);
}
}
return null;
} catch (ClassNotFoundException e) {
return null;
}
}
static String sanitizeFooter(String value) {
// Remove characters that would confuse JGit's footer parser if they were
// included in footer values, for example by splitting the footer block into
// multiple paragraphs.
//
// One painful example: RevCommit#getShorMessage() might return a message
// containing "\r\r", which RevCommit#getFooterLines() will treat as an
// empty paragraph for the purposes of footer parsing.
return INVALID_FOOTER_CHARS.trimAndCollapseFrom(value, ' ');
}
private static int findRestApiServlet(StackTraceElement[] trace) {
for (int i = 0; i < trace.length; i++) {
if (SERVLET_NAMES.contains(trace[i].getClassName())) {
return i;
}
}
return -1;
}
private static String viewName(String cn) {
String impl = cn.replace('$', '.');
for (String p : PACKAGE_PREFIXES) {
if (impl.startsWith(p)) {
return impl.substring(p.length());
}
}
return impl;
}
private NoteDbUtil() {}
}