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/*
* Copyright (C) 2019 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 android.content.integrity;
import android.annotation.NonNull;
import android.annotation.SystemApi;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Objects;
/**
* Immutable data class encapsulating all parameters of a rule set.
*
* @hide
*/
@SystemApi
public class RuleSet {
private final String mVersion;
private final List<Rule> mRules;
private RuleSet(String version, List<Rule> rules) {
mVersion = version;
mRules = Collections.unmodifiableList(rules);
}
/** @see Builder#setVersion(String). */
@NonNull
public String getVersion() {
return mVersion;
}
/** @see Builder#addRules(List). */
@NonNull
public List<Rule> getRules() {
return mRules;
}
/** Builder class for RuleSetUpdateRequest. */
public static class Builder {
private String mVersion;
private List<Rule> mRules;
public Builder() {
mRules = new ArrayList<>();
}
/**
* Set a version string to identify this rule set. This can be retrieved by {@link
* AppIntegrityManager#getCurrentRuleSetVersion()}.
*/
@NonNull
public Builder setVersion(@NonNull String version) {
mVersion = version;
return this;
}
/** Add the rules to include. */
@NonNull
public Builder addRules(@NonNull List<Rule> rules) {
mRules.addAll(rules);
return this;
}
/**
* Builds a {@link RuleSet}.
*
* @throws IllegalArgumentException if version is null
*/
@NonNull
public RuleSet build() {
Objects.requireNonNull(mVersion);
return new RuleSet(mVersion, mRules);
}
}
}
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