dubbo ArrayMerger 源码
dubbo ArrayMerger 代码
文件路径：/dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/merger/ArrayMerger.java
/*
* 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.rpc.cluster.merger;
import org.apache.dubbo.common.utils.ArrayUtils;
import org.apache.dubbo.rpc.cluster.Merger;
import java.lang.reflect.Array;
public class ArrayMerger implements Merger<Object[]> {
public static final ArrayMerger INSTANCE = new ArrayMerger();
@Override
public Object[] merge(Object[]... items) {
if (ArrayUtils.isEmpty(items)) {
return new Object[0];
}
int i = 0;
while (i < items.length && items[i] == null) {
i++;
}
if (i == items.length) {
return new Object[0];
}
Class<?> type = items[i].getClass().getComponentType();
int totalLen = 0;
for (; i < items.length; i++) {
if (items[i] == null) {
continue;
}
Class<?> itemType = items[i].getClass().getComponentType();
if (itemType != type) {
throw new IllegalArgumentException("Arguments' types are different");
}
totalLen += items[i].length;
}
if (totalLen == 0) {
return new Object[0];
}
Object result = Array.newInstance(type, totalLen);
int index = 0;
for (Object[] array : items) {
if (array != null) {
System.arraycopy(array, 0, result, index, array.length);
index += array.length;
}
}
return (Object[]) result;
}
}
相关信息
相关文章
0
赞
热门推荐
-
2、 - 优质文章
-
3、 gate.io
-
8、 golang
-
9、 openharmony
-
10、 Vue中input框自动聚焦