public List compareTableElement()

in fastmodel-compare/src/main/java/com/aliyun/fastmodel/compare/impl/table/PropertiesCompare.java [30:74]
43 lines of code
11 McCabe index (conditional complexity)

    public List<BaseStatement> compareTableElement(CreateTable before, CreateTable after) {
        List<Property> properties = before.getProperties();
        List<Property> afterProperties = after.getProperties();
        boolean isBeforeEmpty = before.isPropertyEmpty();
        boolean isAfterEmpty = after.isPropertyEmpty();
        if (isBeforeEmpty && isAfterEmpty) {
            return ImmutableList.of();
        }
        //如果原来为空，目标不是空，那么直接设置
        if (isBeforeEmpty) {
            return ImmutableList.of(new SetTableProperties(after.getQualifiedName(), afterProperties));
        }
        if (isAfterEmpty) {
            return ImmutableList.of(
                new UnSetTableProperties(after.getQualifiedName(), properties.stream().map(Property::getName).collect(
                    Collectors.toList())));
        } else {
            List<Property> unSet = new ArrayList<>();
            List<String> collect = afterProperties.stream().map(Property::getName).collect(Collectors.toList());
            for (Property b : properties) {
                if (!collect.contains(b.getName())) {
                    unSet.add(b);
                }
            }
            List<Property> setProp = new ArrayList<>();
            for (Property ap : afterProperties) {
                if (properties.contains(ap)) {
                    continue;
                } else {
                    setProp.add(ap);
                }
            }
            List<BaseStatement> list = new ArrayList<>();
            if (!unSet.isEmpty()) {
                list.add(
                    new UnSetTableProperties(after.getQualifiedName(), unSet.stream().map(Property::getName).collect(
                        Collectors.toList())));
            }

            if (!setProp.isEmpty()) {
                list.add(new SetTableProperties(after.getQualifiedName(), setProp));
            }
            return list;
        }
    }