| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 org.jclouds.glacier.predicates.validators; |
| |
| import static com.google.common.base.Preconditions.checkArgument; |
| import static com.google.common.base.Strings.isNullOrEmpty; |
| |
| import org.jclouds.predicates.Validator; |
| |
| import com.google.common.base.CharMatcher; |
| import com.google.inject.Singleton; |
| |
| /** |
| * Validates the archive description string. |
| */ |
| @Singleton |
| public final class DescriptionValidator extends Validator<String> { |
| |
| private static final int MAX_DESC_LENGTH = 1024; |
| |
| private static final CharMatcher DESCRIPTION_ACCEPTABLE_RANGE = CharMatcher.inRange(' ', '~'); |
| |
| @Override |
| public void validate(String description) { |
| if (isNullOrEmpty(description)) |
| return; |
| checkArgument(description.length() <= MAX_DESC_LENGTH, |
| "Description can't be longer than %s characters but was %s", |
| MAX_DESC_LENGTH, description.length()); |
| checkArgument(DESCRIPTION_ACCEPTABLE_RANGE.matchesAllOf(description), |
| "Description should have ASCII values between 32 and 126."); |
| } |
| } |