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Use MapUtils instead of AttachmentsAdapter (#8772)
* Use MapUtils instead of AttachmentsAdapter
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dubbo-common/src/main/java/org/apache/dubbo/common/utils/MapUtils.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,65 @@ | ||
| /* | ||
| * Licensed to the Apache Software Foundation (ASF) under one or more | ||
| * contributor license agreements. See the NOTICE file distributed with | ||
| * this work for additional information regarding copyright ownership. | ||
| * The ASF licenses this file to You 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 org.apache.dubbo.common.utils; | ||
|
|
||
| import java.util.HashMap; | ||
| import java.util.Map; | ||
|
|
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| /** | ||
| * Map tools | ||
| */ | ||
| public class MapUtils { | ||
|
|
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| /** | ||
| * switch Map<String, Object> to Map<String, String> | ||
| * | ||
| * If the value of the original Map is not of type String, then toString() of value will be called | ||
| * | ||
| * @param originMap | ||
| * @return | ||
| */ | ||
| public static Map<String, String> objectToStringMap(Map<String, Object> originMap) { | ||
| Map<String, String> newStrMap = new HashMap<>(); | ||
|
|
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| if (originMap == null) { | ||
| return newStrMap; | ||
| } | ||
|
|
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| for (Map.Entry<String, Object> entry : originMap.entrySet()) { | ||
| String stringValue = convertToString(entry.getValue()); | ||
| if (stringValue != null) { | ||
| newStrMap.put(entry.getKey(), stringValue); | ||
| } | ||
| } | ||
|
|
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| return newStrMap; | ||
| } | ||
|
|
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| /** | ||
| * use {@link Object#toString()} switch Obj to String | ||
| * | ||
| * @param obj | ||
| * @return | ||
| */ | ||
| private static String convertToString(Object obj) { | ||
| if (obj == null) { | ||
| return null; | ||
| } else { | ||
| return obj.toString(); | ||
| } | ||
| } | ||
| } |
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