模型

模型的开发文档

重要

在处理器维度中模型用于数据在节点流转中的序列化以及数据映射，而在触发器里模型用于流程入参和出参的约定。

类别

• JSON
• OBJECT
• SOAP
• CSV

DalaranModelSchema

• ModelField 是所有模型的元数据类，Mule的所有模型都是继承DalaranModelSchema。

@Data
public class DalaranModelSchema {

    private static final Map<String, Class<? extends DalaranModelSchema>> modelSchemaMapping = new HashMap<>();

    private Map<String, ModelField> fields = new HashMap<>();

    public void setRootField(ModelField rootField) {
        fields.put(MODEL_ROOT, rootField);
    }

    public static void addModelSchema(String modelTypeName, Class<? extends DalaranModelSchema> modelSchemaClass) {
        modelSchemaMapping.put(modelTypeName, modelSchemaClass);
    }

    public static Class<? extends DalaranModelSchema> getModelSchemaClass(String modelTypeName) {
        return modelSchemaMapping.get(modelTypeName);
    }
}

• ModelField类

ModelField是对模型的元数据的建模类，也是目前Mule系统所有模型的父类。

public class ModelField {

    private FieldType type;

    private FieldType subType;

    private boolean nullable;

    private String description;

    Map<String, ModelField> fields = new HashMap<>();

    public void addField(String name, ModelField field) {
        fields.put(name, field);
    }
}

示例

@ModelFieldInfo

@ModelFieldInfo 配置除模型元数据信息以外特定的属性，

@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.FIELD})
public @interface ModelFieldInfo {

    String defaultValue() default "";

    String example() default "";

    String label() default "";

    boolean required() default true;

    boolean readonly() default false;

    String inputType() default FieldInputType.Auto;
}

对于CSV模型我配置了字段顺序，数据解析分隔符，数据拼接分隔符，模型类型，保留行结束符，保留换行符，便于生成CSV文件和解析CSV文件的特定属性。

@Data
@Model(value = "CSV")
public class CsvModelSchema extends DalaranModelSchema {
    @ModelFieldInfo(label = "字段顺序", inputType = FieldInputType.String, required = false)
    private String columnSequence;

    @ModelFieldInfo(label = "数据解析分隔符", inputType = FieldInputType.String, required = false)
    private String columnDelimiter;

    @ModelFieldInfo(label = "数据拼接分隔符", inputType = FieldInputType.String, required = false)
    private String dataDelimiter;

    @ModelFieldInfo(label = "模型类型", inputType = FieldInputType.Select, defaultValue = "COMMON")
    private CSVModelType type = CSVModelType.COMMON;

    @ModelFieldInfo(label = "保留行结束符", inputType = FieldInputType.Switch, required = false, defaultValue = "false")
    private boolean remainEOF = false;

    @ModelFieldInfo(label = "保留换行符", inputType = FieldInputType.Switch, required = false, defaultValue = "false")
    private boolean remainNewLine = false;
}