google-nomulus/java/google/registry/tools/RandomPasswordGenerator.java
Justine Tunney 5012893c1d mv com/google/domain/registry google/registry
This change renames directories in preparation for the great package
rename. The repository is now in a broken state because the code
itself hasn't been updated. However this should ensure that git
correctly preserves history for each file.
2016-05-13 18:55:08 -04:00

46 lines
1.4 KiB
Java

// Copyright 2016 The Domain Registry Authors. All Rights Reserved.
//
// 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.domain.registry.tools;
import static com.google.common.base.Preconditions.checkArgument;
import java.util.Random;
import javax.inject.Inject;
/** Password generator. */
class RandomPasswordGenerator implements PasswordGenerator {
private static final String SYMBOLS =
"0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ.-=";
private final Random random;
@Inject
RandomPasswordGenerator(Random random) {
this.random = random;
}
/** Generates a password of a specified length. */
@Override
public String createPassword(int length) {
checkArgument(length > 0);
char[] password = new char[length];
for (int i = 0; i < length; ++i) {
password[i] = SYMBOLS.charAt(random.nextInt(SYMBOLS.length()));
}
return new String(password);
}
}