| // Copyright (C) 2023 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.change; |
| |
| import com.google.common.collect.ImmutableMap; |
| import com.google.common.collect.ImmutableSet; |
| import java.util.Map; |
| import java.util.Set; |
| |
| public class CustomKeyedValuesUtil { |
| public static class InvalidCustomKeyedValueException extends Exception { |
| private static final long serialVersionUID = 1L; |
| |
| static InvalidCustomKeyedValueException customKeyedValuesMayNotContainEquals() { |
| return new InvalidCustomKeyedValueException("custom keys may not contain equals sign"); |
| } |
| |
| static InvalidCustomKeyedValueException customKeyedValuesMayNotContainNewLine() { |
| return new InvalidCustomKeyedValueException("custom values may not contain newline"); |
| } |
| |
| InvalidCustomKeyedValueException(String message) { |
| super(message); |
| } |
| } |
| |
| static ImmutableMap<String, String> extractCustomKeyedValues(Map<String, String> input) |
| throws InvalidCustomKeyedValueException { |
| if (input == null) { |
| return ImmutableMap.of(); |
| } |
| ImmutableMap.Builder<String, String> builder = ImmutableMap.builder(); |
| for (Map.Entry<String, String> customKeyedValue : input.entrySet()) { |
| if (customKeyedValue.getKey().contains("=")) { |
| throw InvalidCustomKeyedValueException.customKeyedValuesMayNotContainEquals(); |
| } |
| if (customKeyedValue.getValue().contains("\n")) { |
| throw InvalidCustomKeyedValueException.customKeyedValuesMayNotContainNewLine(); |
| } |
| String key = customKeyedValue.getKey().trim(); |
| if (key.isEmpty()) { |
| continue; |
| } |
| builder.put(key, customKeyedValue.getValue()); |
| } |
| return builder.build(); |
| } |
| |
| static ImmutableSet<String> extractCustomKeys(Set<String> input) |
| throws InvalidCustomKeyedValueException { |
| if (input == null) { |
| return ImmutableSet.of(); |
| } |
| ImmutableSet.Builder<String> builder = ImmutableSet.builder(); |
| for (String customKey : input) { |
| if (customKey.contains("=")) { |
| throw InvalidCustomKeyedValueException.customKeyedValuesMayNotContainEquals(); |
| } |
| String key = customKey.trim(); |
| if (key.isEmpty()) { |
| continue; |
| } |
| builder.add(key); |
| } |
| return builder.build(); |
| } |
| |
| private CustomKeyedValuesUtil() {} |
| } |