e128bff457
No unnecessary boxing, enhanced for loops, redundant checks and throws, imports (removal, reordering), possible void returns Change-Id: I7a8e1b2007e3b0906e01b41785c518d02c2f3fab
71 lines
2.2 KiB
Java
71 lines
2.2 KiB
Java
/*
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* Copyright (C) 2015 The Android Open Source Project
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* Copyright (C) 2024 The LineageOS Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.messaging.util;
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import java.util.Arrays;
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import java.util.Collection;
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import java.util.HashSet;
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/**
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* Utility class to make it easy to store multiple conversation id strings in a single string
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* with delimiters.
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*/
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public class ConversationIdSet extends HashSet<String> {
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private static final String JOIN_DELIMITER = "|";
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private static final String SPLIT_DELIMITER = "\\|";
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public ConversationIdSet() {
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super();
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}
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public ConversationIdSet(final Collection<String> asList) {
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super(asList);
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}
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public String first() {
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if (size() > 0) {
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return iterator().next();
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} else {
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return null;
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}
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}
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public static ConversationIdSet createSet(final String conversationIdSetString) {
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ConversationIdSet set = null;
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if (conversationIdSetString != null) {
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set = new ConversationIdSet(Arrays.asList(conversationIdSetString.split(
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SPLIT_DELIMITER)));
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}
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return set;
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}
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public String getDelimitedString() {
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return OsUtil.joinFromSetWithDelimiter(this, JOIN_DELIMITER);
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}
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public static String join(final String conversationIdSet1, final String conversationIdSet2) {
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String joined = null;
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if (conversationIdSet1 == null) {
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joined = conversationIdSet2;
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} else if (conversationIdSet2 != null) {
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joined = conversationIdSet1 + JOIN_DELIMITER + conversationIdSet2;
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}
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return joined;
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}
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}
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