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// Copyright 2014 The Bazel 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.devtools.build.lib.rules.objc;
import com.google.common.base.Splitter;
import com.google.common.collect.ImmutableBiMap;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.ImmutableSet;
import java.util.EnumSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
/**
* Possible values in the {@code TARGETED_DEVICE_FAMILY} build setting.
*/
public enum TargetDeviceFamily {
IPAD, IPHONE;
/**
* An exception that indicates the name of a device family was not recognized or is somehow
* invalid.
*/
public static class InvalidFamilyNameException extends IllegalArgumentException {
public InvalidFamilyNameException(String message) {
super(message);
}
}
/**
* An exception that indicates a family name appeared twice in a sequence when only one is
* expected.
*/
public static class RepeatedFamilyNameException extends IllegalArgumentException {
public RepeatedFamilyNameException(String message) {
super(message);
}
}
/**
* Contains the values of the UIDeviceFamily plist info setting for each valid set of
* TargetDeviceFamilies.
*/
public static final Map<Set<TargetDeviceFamily>, List<Integer>> UI_DEVICE_FAMILY_VALUES =
ImmutableMap.<Set<TargetDeviceFamily>, List<Integer>>builder()
.put(ImmutableSet.of(TargetDeviceFamily.IPHONE), ImmutableList.of(1))
.put(ImmutableSet.of(TargetDeviceFamily.IPAD), ImmutableList.of(2))
.put(ImmutableSet.of(TargetDeviceFamily.IPHONE, TargetDeviceFamily.IPAD),
ImmutableList.of(1, 2))
.build();
/**
* Returns the name of the family as it appears in build rules.
*/
public String getNameInRule() {
return BY_NAME_IN_RULE.get(this);
}
private static final ImmutableBiMap<TargetDeviceFamily, String> BY_NAME_IN_RULE =
ImmutableBiMap.of(IPAD, "ipad", IPHONE, "iphone");
/**
* Converts a sequence containing the strings returned by {@link #getNameInRule()} to a set of
* instances of this enum.
*
* <p>If there are multiple items in the returned set, they are in enumeration order.
*
* @param names the names of the families
* @throws InvalidFamilyNameException if some family name in the sequence was not recognized
* @throws RepeatedFamilyNameException if some family name appeared in the sequence twice
*/
public static Set<TargetDeviceFamily> fromNamesInRule(Iterable<String> names) {
Set<TargetDeviceFamily> families = EnumSet.noneOf(TargetDeviceFamily.class);
for (String name : names) {
TargetDeviceFamily family = BY_NAME_IN_RULE.inverse().get(name);
if (family == null) {
throw new InvalidFamilyNameException(name);
}
if (!families.add(family)) {
throw new RepeatedFamilyNameException(name);
}
}
return families;
}
/**
* Converts the {@code TARGETED_DEVICE_FAMILY} setting in build settings to a set of
* {@code TargetedDevice}s.
*/
public static Set<TargetDeviceFamily> fromBuildSetting(String targetedDevice) {
ImmutableSet.Builder<TargetDeviceFamily> result = ImmutableSet.builder();
for (String numericSetting : Splitter.on(',').split(targetedDevice)) {
numericSetting = numericSetting.trim();
switch (numericSetting) {
case "1":
result.add(IPHONE);
break;
case "2":
result.add(IPAD);
break;
default:
throw new IllegalArgumentException(
"Expect comma-separated list containing only '1' and/or '2' for "
+ "TARGETED_DEVICE_FAMILY: " + targetedDevice);
}
}
return result.build();
}
}
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