Andreas Huber | 1aec397 | 2016-08-26 09:26:32 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2016 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
Andreas Huber | 84f89de | 2016-07-28 15:39:51 -0700 | [diff] [blame] | 17 | #include "FQName.h" |
| 18 | |
| 19 | #include <android-base/logging.h> |
| 20 | #include <regex> |
| 21 | |
| 22 | #define RE_COMPONENT "[a-zA-Z_][a-zA-Z_0-9]*" |
| 23 | #define RE_PATH RE_COMPONENT "([.]" RE_COMPONENT ")*" |
| 24 | #define RE_VERSION "@[0-9]+[.][0-9]+" |
| 25 | |
| 26 | static const std::regex kRE1("(" RE_PATH ")(" RE_VERSION ")?::(" RE_PATH ")"); |
| 27 | static const std::regex kRE2("(" RE_VERSION ")::(" RE_PATH ")"); |
Andreas Huber | da51b8e | 2016-07-28 16:00:57 -0700 | [diff] [blame] | 28 | static const std::regex kRE3("(" RE_PATH ")(" RE_VERSION ")"); |
| 29 | static const std::regex kRE4(RE_PATH); |
Andreas Huber | 84f89de | 2016-07-28 15:39:51 -0700 | [diff] [blame] | 30 | |
| 31 | namespace android { |
| 32 | |
Andreas Huber | da51b8e | 2016-07-28 16:00:57 -0700 | [diff] [blame] | 33 | FQName::FQName() |
| 34 | : mValid(false) { |
| 35 | } |
| 36 | |
Andreas Huber | 84f89de | 2016-07-28 15:39:51 -0700 | [diff] [blame] | 37 | FQName::FQName(const std::string &s) |
| 38 | : mValid(false) { |
| 39 | setTo(s); |
| 40 | } |
| 41 | |
Andreas Huber | 68f2459 | 2016-07-29 14:53:48 -0700 | [diff] [blame] | 42 | FQName::FQName( |
| 43 | const std::string &package, |
| 44 | const std::string &version, |
| 45 | const std::string &name) |
| 46 | : mValid(true), |
| 47 | mPackage(package), |
| 48 | mVersion(version), |
| 49 | mName(name) { |
| 50 | } |
| 51 | |
Andreas Huber | 84f89de | 2016-07-28 15:39:51 -0700 | [diff] [blame] | 52 | bool FQName::isValid() const { |
| 53 | return mValid; |
| 54 | } |
| 55 | |
Andreas Huber | 68f2459 | 2016-07-29 14:53:48 -0700 | [diff] [blame] | 56 | bool FQName::isFullyQualified() const { |
| 57 | return !mPackage.empty() && !mVersion.empty() && !mName.empty(); |
| 58 | } |
| 59 | |
Andreas Huber | 84f89de | 2016-07-28 15:39:51 -0700 | [diff] [blame] | 60 | bool FQName::setTo(const std::string &s) { |
| 61 | mPackage.clear(); |
| 62 | mVersion.clear(); |
| 63 | mName.clear(); |
| 64 | |
| 65 | mValid = true; |
| 66 | |
| 67 | std::smatch match; |
| 68 | if (std::regex_match(s, match, kRE1)) { |
| 69 | CHECK_EQ(match.size(), 6u); |
| 70 | |
| 71 | mPackage = match.str(1); |
| 72 | mVersion = match.str(3); |
| 73 | mName = match.str(4); |
| 74 | } else if (std::regex_match(s, match, kRE2)) { |
| 75 | CHECK_EQ(match.size(), 4u); |
| 76 | |
| 77 | mVersion = match.str(1); |
| 78 | mName = match.str(2); |
| 79 | } else if (std::regex_match(s, match, kRE3)) { |
Andreas Huber | da51b8e | 2016-07-28 16:00:57 -0700 | [diff] [blame] | 80 | CHECK_EQ(match.size(), 4u); |
| 81 | |
| 82 | mPackage = match.str(1); |
| 83 | mVersion = match.str(3); |
| 84 | } else if (std::regex_match(s, match, kRE4)) { |
Andreas Huber | 84f89de | 2016-07-28 15:39:51 -0700 | [diff] [blame] | 85 | mName = match.str(0); |
| 86 | } else { |
| 87 | mValid = false; |
| 88 | } |
| 89 | |
| 90 | return isValid(); |
| 91 | } |
| 92 | |
| 93 | std::string FQName::package() const { |
| 94 | return mPackage; |
| 95 | } |
| 96 | |
| 97 | std::string FQName::version() const { |
| 98 | return mVersion; |
| 99 | } |
| 100 | |
| 101 | std::string FQName::name() const { |
| 102 | return mName; |
| 103 | } |
| 104 | |
| 105 | void FQName::applyDefaults( |
| 106 | const std::string &defaultPackage, |
| 107 | const std::string &defaultVersion) { |
| 108 | if (mPackage.empty()) { |
| 109 | mPackage = defaultPackage; |
| 110 | } |
| 111 | |
| 112 | if (mVersion.empty()) { |
| 113 | mVersion = defaultVersion; |
| 114 | } |
| 115 | } |
| 116 | |
Andreas Huber | 68f2459 | 2016-07-29 14:53:48 -0700 | [diff] [blame] | 117 | std::string FQName::string() const { |
Andreas Huber | 84f89de | 2016-07-28 15:39:51 -0700 | [diff] [blame] | 118 | CHECK(mValid); |
| 119 | |
Andreas Huber | 5345ec2 | 2016-07-29 13:33:27 -0700 | [diff] [blame] | 120 | std::string out; |
Andreas Huber | 84f89de | 2016-07-28 15:39:51 -0700 | [diff] [blame] | 121 | out.append(mPackage); |
| 122 | out.append(mVersion); |
Andreas Huber | da51b8e | 2016-07-28 16:00:57 -0700 | [diff] [blame] | 123 | if (!mName.empty()) { |
| 124 | if (!mPackage.empty() || !mVersion.empty()) { |
| 125 | out.append("::"); |
| 126 | } |
| 127 | out.append(mName); |
Andreas Huber | 84f89de | 2016-07-28 15:39:51 -0700 | [diff] [blame] | 128 | } |
Andreas Huber | 84f89de | 2016-07-28 15:39:51 -0700 | [diff] [blame] | 129 | |
| 130 | return out; |
| 131 | } |
| 132 | |
Andreas Huber | da51b8e | 2016-07-28 16:00:57 -0700 | [diff] [blame] | 133 | void FQName::print() const { |
| 134 | if (!mValid) { |
| 135 | LOG(INFO) << "INVALID"; |
| 136 | return; |
| 137 | } |
| 138 | |
Andreas Huber | 68f2459 | 2016-07-29 14:53:48 -0700 | [diff] [blame] | 139 | LOG(INFO) << string(); |
| 140 | } |
| 141 | |
| 142 | bool FQName::operator<(const FQName &other) const { |
| 143 | return string() < other.string(); |
Andreas Huber | da51b8e | 2016-07-28 16:00:57 -0700 | [diff] [blame] | 144 | } |
| 145 | |
Andreas Huber | d2943e1 | 2016-08-05 11:59:31 -0700 | [diff] [blame] | 146 | bool FQName::operator==(const FQName &other) const { |
| 147 | return string() == other.string(); |
| 148 | } |
| 149 | |
Andreas Huber | 0e00de4 | 2016-08-03 09:56:02 -0700 | [diff] [blame] | 150 | static void SplitString( |
| 151 | const std::string &s, char c, std::vector<std::string> *components) { |
| 152 | components->clear(); |
| 153 | |
| 154 | size_t startPos = 0; |
| 155 | size_t matchPos; |
| 156 | while ((matchPos = s.find(c, startPos)) != std::string::npos) { |
| 157 | components->push_back(s.substr(startPos, matchPos - startPos)); |
| 158 | startPos = matchPos + 1; |
| 159 | } |
| 160 | |
| 161 | if (startPos + 1 < s.length()) { |
| 162 | components->push_back(s.substr(startPos)); |
| 163 | } |
| 164 | } |
| 165 | |
Andreas Huber | d2943e1 | 2016-08-05 11:59:31 -0700 | [diff] [blame] | 166 | // static |
| 167 | std::string FQName::JoinStrings( |
Andreas Huber | 0e00de4 | 2016-08-03 09:56:02 -0700 | [diff] [blame] | 168 | const std::vector<std::string> &components, |
| 169 | const std::string &separator) { |
| 170 | std::string out; |
| 171 | bool first = true; |
| 172 | for (const auto &component : components) { |
| 173 | if (!first) { |
| 174 | out += separator; |
| 175 | } |
| 176 | out += component; |
| 177 | |
| 178 | first = false; |
| 179 | } |
| 180 | |
| 181 | return out; |
| 182 | } |
| 183 | |
| 184 | std::string FQName::cppNamespace() const { |
| 185 | std::vector<std::string> components; |
| 186 | getPackageAndVersionComponents(&components, true /* cpp_compatible */); |
| 187 | |
| 188 | std::string out = "::"; |
| 189 | out += JoinStrings(components, "::"); |
| 190 | |
| 191 | return out; |
| 192 | } |
| 193 | |
| 194 | std::string FQName::cppName() const { |
| 195 | std::string out = cppNamespace(); |
| 196 | |
| 197 | std::vector<std::string> components; |
| 198 | SplitString(name(), '.', &components); |
| 199 | out += "::"; |
| 200 | out += JoinStrings(components, "::"); |
| 201 | |
| 202 | return out; |
| 203 | } |
| 204 | |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 205 | std::string FQName::javaPackage() const { |
| 206 | std::vector<std::string> components; |
| 207 | getPackageAndVersionComponents(&components, true /* cpp_compatible */); |
| 208 | |
| 209 | return JoinStrings(components, "."); |
| 210 | } |
| 211 | |
| 212 | std::string FQName::javaName() const { |
| 213 | return javaPackage() + "." + name(); |
| 214 | } |
| 215 | |
Andreas Huber | 0e00de4 | 2016-08-03 09:56:02 -0700 | [diff] [blame] | 216 | void FQName::getPackageComponents(std::vector<std::string> *components) const { |
| 217 | SplitString(package(), '.', components); |
| 218 | } |
| 219 | |
| 220 | void FQName::getPackageAndVersionComponents( |
| 221 | std::vector<std::string> *components, |
| 222 | bool cpp_compatible) const { |
| 223 | getPackageComponents(components); |
| 224 | |
| 225 | const std::string packageVersion = version(); |
| 226 | CHECK(packageVersion[0] == '@'); |
| 227 | |
| 228 | if (!cpp_compatible) { |
| 229 | components->push_back(packageVersion.substr(1)); |
| 230 | return; |
| 231 | } |
| 232 | |
| 233 | const size_t dotPos = packageVersion.find('.'); |
| 234 | |
| 235 | // Form "Vmajor_minor". |
| 236 | std::string versionString = "V"; |
| 237 | versionString.append(packageVersion.substr(1, dotPos - 1)); |
| 238 | versionString.append("_"); |
| 239 | versionString.append(packageVersion.substr(dotPos + 1)); |
| 240 | |
| 241 | components->push_back(versionString); |
| 242 | } |
| 243 | |
Andreas Huber | 39fa718 | 2016-08-19 14:27:33 -0700 | [diff] [blame] | 244 | bool FQName::endsWith(const FQName &other) const { |
| 245 | std::string s1 = string(); |
| 246 | std::string s2 = other.string(); |
| 247 | |
| 248 | size_t pos = s1.rfind(s2); |
| 249 | if (pos == std::string::npos || pos + s2.size() != s1.size()) { |
| 250 | return false; |
| 251 | } |
| 252 | |
| 253 | if (pos > 0) { |
| 254 | // A match is only a match if it is preceded by a "boundary", i.e. |
| 255 | // we perform a component-wise match from the end. |
| 256 | // "az" is not a match for "android.hardware.foo@1.0::IFoo.bar.baz", |
| 257 | // "baz", "bar.baz", "IFoo.bar.baz" are. |
| 258 | |
| 259 | char separator = s1[pos - 1]; |
| 260 | if (separator != '.' && separator != ':') { |
| 261 | return false; |
| 262 | } |
| 263 | } |
| 264 | |
| 265 | return true; |
| 266 | } |
| 267 | |
Andreas Huber | 84f89de | 2016-07-28 15:39:51 -0700 | [diff] [blame] | 268 | } // namespace android |
| 269 | |