mybatis-generator lombok插件

插件地址：（https://github.com/suyin58/mybatis-generator-tddl/blob/master/generator-plugin/src/main/java/com/toolplat/generator/plugins/LombokPlugin.java）

使用Mybatis的插件拓展（继承PluginAdapter），增加注解处理并去掉默认的getter和setter方法

public class LombokPlugin extends BasePlugin {
    @Override
    public boolean validate(List<String> warnings) {
        return true;
    }


    private final Collection<Annotations> annotations;
    /**
     * LombokPlugin constructor
     */
    public LombokPlugin() {

        annotations = new LinkedHashSet<Annotations>(Annotations.values().length);
    }


    /**
     * Intercepts base record class generation
     *
     * @param topLevelClass
     *            the generated base record class
     * @param introspectedTable
     *            The class containing information about the table as
     *            introspected from the database
     * @return always true
     */
    @Override
    public boolean modelBaseRecordClassGenerated(TopLevelClass topLevelClass,
                                                 IntrospectedTable introspectedTable) {
        addDataAnnotation(topLevelClass);
        return true;
    }

    /**
     * Intercepts primary key class generation
     *
     * @param topLevelClass
     *            the generated primary key class
     * @param introspectedTable
     *            The class containing information about the table as
     *            introspected from the database
     * @return always true
     */
    @Override
    public boolean modelPrimaryKeyClassGenerated(TopLevelClass topLevelClass,
                                                 IntrospectedTable introspectedTable) {
        addDataAnnotation(topLevelClass);
        return true;
    }

    /**
     * Intercepts "record with blob" class generation
     *
     * @param topLevelClass
     *            the generated record with BLOBs class
     * @param introspectedTable
     *            The class containing information about the table as
     *            introspected from the database
     * @return always true
     */
    @Override
    public boolean modelRecordWithBLOBsClassGenerated(
            TopLevelClass topLevelClass, IntrospectedTable introspectedTable) {
        addDataAnnotation(topLevelClass);
        return true;
    }

    /**
     * Prevents all getters from being generated.
     * See SimpleModelGenerator
     *
     * @param method
     *            the getter, or accessor, method generated for the specified
     *            column
     * @param topLevelClass
     *            the partially implemented model class
     * @param introspectedColumn
     *            The class containing information about the column related
     *            to this field as introspected from the database
     * @param introspectedTable
     *            The class containing information about the table as
     *            introspected from the database
     * @param modelClassType
     *            the type of class that the field is generated for
     */
    @Override
    public boolean modelGetterMethodGenerated(Method method,
                                              TopLevelClass topLevelClass,
                                              IntrospectedColumn introspectedColumn,
                                              IntrospectedTable introspectedTable,
                                              ModelClassType modelClassType) {
        return false;
    }

    /**
     * Prevents all setters from being generated
     * See SimpleModelGenerator
     *
     * @param method
     *            the setter, or mutator, method generated for the specified
     *            column
     * @param topLevelClass
     *            the partially implemented model class
     * @param introspectedColumn
     *            The class containing information about the column related
     *            to this field as introspected from the database
     * @param introspectedTable
     *            The class containing information about the table as
     *            introspected from the database
     * @param modelClassType
     *            the type of class that the field is generated for
     * @return always false
     */
    @Override
    public boolean modelSetterMethodGenerated(Method method,
                                              TopLevelClass topLevelClass,
                                              IntrospectedColumn introspectedColumn,
                                              IntrospectedTable introspectedTable,
                                              ModelClassType modelClassType) {
        return false;
    }

    /**
     * Adds the lombok annotations' imports and annotations to the class
     *
     * @param topLevelClass
     *            the partially implemented model class
     */
    private void addDataAnnotation(TopLevelClass topLevelClass) {
        for (Annotations annotation : annotations) {
            topLevelClass.addImportedType(annotation.javaType);
            topLevelClass.addAnnotation(annotation.name);
        }
    }

    @Override
    public void setProperties(Properties properties) {
        super.setProperties(properties);

        //@Data is default annotation
        annotations.add(Annotations.DATA);

        for (Map.Entry<Object, Object> entry : properties.entrySet()) {
            boolean isEnable = Boolean.parseBoolean(entry.getValue().toString());

            if (isEnable) {
                String paramName = entry.getKey().toString().trim();
                Annotations annotation = Annotations.getValueOf(paramName);
                if (annotation != null) {
                    annotations.add(annotation);
                    annotations.addAll(Annotations.getDependencies(annotation));
                }
            }
        }
    }


    private enum Annotations {
        DATA("data", "@Data", "lombok.Data"),
        BUILDER("builder", "@Builder", "lombok.Builder"),
        SUPER_BUILDER("superBuilder", "@SuperBuilder", "lombok.experimental.SuperBuilder"),
        ALL_ARGS_CONSTRUCTOR("allArgsConstructor", "@AllArgsConstructor", "lombok.AllArgsConstructor"),
        NO_ARGS_CONSTRUCTOR("noArgsConstructor", "@NoArgsConstructor", "lombok.NoArgsConstructor"),
        TO_STRING("toString", "@ToString", "lombok.ToString");


        private final String paramName;
        private final String name;
        private final FullyQualifiedJavaType javaType;


        Annotations(String paramName, String name, String className) {
            this.paramName = paramName;
            this.name = name;
            this.javaType = new FullyQualifiedJavaType(className);
        }

        private static Annotations getValueOf(String paramName) {
            for (Annotations annotation : Annotations.values()) {
                if (String.CASE_INSENSITIVE_ORDER.compare(paramName, annotation.paramName) == 0) {
                    return annotation;
                }
            }

            return null;
        }

        private static Collection<Annotations> getDependencies(Annotations annotation) {
            if (annotation == ALL_ARGS_CONSTRUCTOR) {
                return Collections.singleton(NO_ARGS_CONSTRUCTOR);
            } else {
                return Collections.emptyList();
            }
        }
    }
}

配置文件中使用插件的时候，指定需要的Lombok注解（https://github.com/suyin58/mybatis-generator-tddl/blob/master/generator-test/src/test/resources/generatorConfigMyBatis3.xml）

<!-- lombok 插件 -->
        <plugin type="com.toolplat.generator.plugins.LombokPlugin">
            <property name="data" value="true"/>
            <property name="builder" value="true"/>
            <property name="allArgsConstructor" value="true"/>
            <property name="noArgsConstructor" value="true"/>
            <property name="toString" value="true"/>
        </plugin>

生成的文件样例（https://github.com/suyin58/mybatis-generator-tddl/blob/master/generator-test/src/main/java/com/toolplat/demo/domain/TableOneUniqueKeyPO.java）：

/**
 * 多个uk测试
 */
@Data
@Builder
@NoArgsConstructor
@AllArgsConstructor
@ToString
public class TableTwoUniqueKeyPO implements Serializable {
    private static final long serialVersionUID = 8946653058164L;

    /**
     * 多群主键
     */
    private Long orgId;

    /**
     * 多码
     */
    private String code;

    /**
     * id
     */
    private Long id;

    /**
     * 创建时间
     */
    private Date gmtCreate;

    /**
     * 修改时间
     */
    private Date gmtModified;

    /**
     * 会话ID
     */
    private String cid;
}