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com.google.gerrit.server.util.AttentionSetUtil Maven / Gradle / Ivy
// Copyright (C) 2020 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.util;
import com.google.common.collect.ImmutableSet;
import com.google.gerrit.entities.AttentionSetUpdate;
import com.google.gerrit.entities.AttentionSetUpdate.Operation;
import java.util.Collection;
/** Common helpers for dealing with attention set data structures. */
public class AttentionSetUtil {
/** Returns only updates where the user was added. */
public static ImmutableSet additionsOnly(
Collection updates) {
return updates.stream()
.filter(u -> u.operation() == Operation.ADD)
.collect(ImmutableSet.toImmutableSet());
}
private AttentionSetUtil() {}
}
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