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Java entity class information
MyTest.java、MyTestItem.java
public class MyTest {
private List<MyTestItem> itemList;
private Map<Integer , MyTestItem> itemMap;
// ... getters and setters omission
}
public class MyTestItem {
private int id;
private String name;
// ... getters and setters omission
}
Protobuf protocol file content
message Test {
repeated TestItem itemList = 1;
map<int32,TestItem> itemMap = 2 ;
}
message TestItem {
int32 id = 1;
string name = 2;
}
Java test program
@Test
public void ProtobufTest() throws Exception {
//Construct raw object data
MyTest myTest = new MyTest();
myTest.setItemList(List.of(new MyTestItem(1 , "name1") , new MyTestItem(2 , "name2")));
myTest.setItemMap(Map.of(1 , new MyTestItem(1 , "name1") , 2, new MyTestItem(2 , "name2")));
doPrintln("original object" , myTest.getItemList() , myTest.getItemMap());
//Use ProtobufIOUtil to perform forward and deserialization column testing.
Schema<MyTest> schema = RuntimeSchema.getSchema(MyTest.class);
byte[] data = ProtobufIOUtil.toByteArray(myTest, schema, LinkedBuffer.allocate());
MyTest newMyTest = schema.newMessage();
ProtobufIOUtil.mergeFrom(data , newMyTest , schema);
doPrintln("ProtobufIOUtil serialized object" , newMyTest.getItemList() , newMyTest.getItemMap());
//Use parseFrom and data data in original Google's Protobuf to parse objects.
Common.Test protobufTest = Common.Test.parseFrom(data);
doPrintln("parseFrom serialized object" , protobufTest.getItemListList() , protobufTest.getItemMapMap());
}
/**
* Print list, map
*/
private void doPrintln(String type , List<?> list , Map<Integer , ?> map) {
System.out.println(type + "， list quantity：" + list.size() + "， map quantity：" + map.size());
list.forEach((item) -> {
System.out.println(type + "， list content：" + item);
});
map.forEach((id , item) -> {
System.out.println(type + "， map content：" + item);
});
System.out.println();
}
Java test program results
original object， list quantity：2， map quantity：2
original object， list content：MyTestItem{id=1, name='name1'}
original object， list content：MyTestItem{id=2, name='name2'}
original object， map content：MyTestItem{id=2, name='name2'}
original object， map content：MyTestItem{id=1, name='name1'}
ProtobufIOUtil serialized object， list quantity：2， map quantity：2
ProtobufIOUtil serialized object， list content：MyTestItem{id=1, name='name1'}
ProtobufIOUtil serialized object， list content：MyTestItem{id=2, name='name2'}
ProtobufIOUtil serialized object， map content：MyTestItem{id=1, name='name1'}
ProtobufIOUtil serialized object， map content：MyTestItem{id=2, name='name2'}
parseFrom serialized object， list quantity：2， map quantity：1
parseFrom serialized object， list content：id: 1
name: "name1"
parseFrom serialized object， list content：id: 2
name: "name2"
parseFrom serialized object， map content：
Process ended with exit code 0
In the above example, I defined two entity classes and protocol file contents, used ProtobufIOUtil.toByteArray to serialize the data data, and then used ProtobufIOUtil.mergeFrom to deserialize and receive the data normally.
However, if I use Google Protobuf's Common.Test.parseFrom to parse the data serialized by ProtobufIOUtil.toByteArray, the List data is currently normal, but the Map data has errors.
If I want to parse and deserialize the xxxx.parseFrom for the ProtobufIOUtil.toByteArray to ensure that the Map data is correct, how should I do it?
Operating system information: windows
JDK information: jdk 21
Version information: 'implementation 'io.protostuff:protostuff-core:1.8.0'
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