dev 契约锁

P15GEN2\59518

2024-05-29 d4210c7c4b04abde20037ea8aa0f54ef8a2649aa

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package foundation.version;
 
import foundation.data.meta.field.Field;
import foundation.data.meta.field.FieldsRuntime;
import foundation.util.MapList;
import foundation.util.Util;
 
public class FieldMappingCreator {
    private MapList<String, Field> fromFields;
    private MapList<String, Field> toFields;
    
    public FieldMappingCreator(MapList<String, Field> fromFields, MapList<String, Field> toFields) {
        this.fromFields = fromFields;
        this.toFields = toFields;
    }
 
    public static FieldMappingCreator createMapping(FieldsRuntime fromFields, String direction, String versionCode) {
        MapList<String, Field> fromFieldList = new MapList<String, Field>();
        MapList<String, Field> toFieldList = new MapList<String, Field>();
        
        if("HistoryToPreparatory".equalsIgnoreCase(direction)) {
            for (Field field : fromFields) {
                if ("version_data_id".equalsIgnoreCase(field.getName()) || "version_code".equalsIgnoreCase(field.getName())) {
                    continue;
                }
                else {
                    fromFieldList.add(field.getName(), field);
                    toFieldList.add(field.getName(), field);
                }
            }
        }
        else if("PreparatoryToActive".equalsIgnoreCase(direction)) {
            for (Field field : fromFields) {
                fromFieldList.add(field.getName(), field);
                toFieldList.add(field.getName(), field);
            }
        }
        else if("ActiveToHistory".equalsIgnoreCase(direction)) {
            toFieldList.add("version_data_id", new Field("version_data_id"));
            fromFieldList.add("MD5(UUID_SHORT())", new Field("MD5(UUID_SHORT())"));
            
            for (Field field : fromFields) {
                fromFieldList.add(field.getName(), field);
                toFieldList.add(field.getName(), field);
            }
            
            toFieldList.add("version_code", new Field("version_code"));
            fromFieldList.add(Util.quotedStr(versionCode), new Field(Util.quotedStr(versionCode)));
        }
        
        return new FieldMappingCreator(fromFieldList, toFieldList);
    }
    
    public String getFromFields() {
        Field field;
        int length = fromFields.size();
        StringBuffer selectField = new StringBuffer();
        
        for (int i = 0; i < length - 1; i++) {
            field = fromFields.get(i);
            selectField.append(field.getName()).append(", ");
        }
        field = fromFields.get(length - 1);
        selectField.append(field.getName());
        
        return selectField.toString();
    }
    
    public String getToFields() {
        Field field;
        int length = toFields.size();
        StringBuffer insertField = new StringBuffer();
        
        for (int i = 0; i < length - 1; i++) {
            field = toFields.get(i);
            insertField.append(field.getName()).append(", ");
        }
        field = toFields.get(length - 1);
        insertField.append(field.getName());
        
        return insertField.toString();
    }
 
 
}