com.google.gerrit.server.account.EmailExpander Maven / Gradle / Ivy
// Copyright (C) 2009 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.account;
/** Expands user name to a local email address, usually by adding a domain. */
public interface EmailExpander {
boolean canExpand(String user);
String expand(String user);
class None implements EmailExpander {
public static final None INSTANCE = new None();
public static boolean canHandle(String fmt) {
return fmt == null || fmt.isEmpty();
}
private None() {}
@Override
public boolean canExpand(String user) {
return false;
}
@Override
public String expand(String user) {
return null;
}
}
class Simple implements EmailExpander {
private static final String PLACEHOLDER = "{0}";
public static boolean canHandle(String fmt) {
return fmt != null && fmt.contains(PLACEHOLDER);
}
private final String lhs;
private final String rhs;
public Simple(String fmt) {
final int p = fmt.indexOf(PLACEHOLDER);
lhs = fmt.substring(0, p);
rhs = fmt.substring(p + PLACEHOLDER.length());
}
@Override
public boolean canExpand(String user) {
return !user.contains(" ");
}
@Override
public String expand(String user) {
return lhs + user + rhs;
}
}
}