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package com.oreo.plugin;

import com.google.code.mybatis.generator.plugins.BasePluginConfig;

import org.mybatis.generator.api.GeneratedJavaFile;

import org.mybatis.generator.api.IntrospectedTable;

import org.mybatis.generator.api.PluginAdapter;

import org.mybatis.generator.api.dom.java.*;

import org.mybatis.generator.config.JavaClientGeneratorConfiguration;

import java.util.ArrayList;

import java.util.List;

import java.util.Properties;

public class ServiceGenPlugin extends PluginAdapter {

private ServiceGenPlugin.Config config;

@Override

public boolean validate(List<String> warnings) {

if (this.config == null) {

this.config = new ServiceGenPlugin.Config(this.getProperties());

}

return true;

}

private FullyQualifiedJavaType entity = null, condition = null, shortCondition = null, example = null;

@Override

public void initialized(IntrospectedTable introspectedTable) {

this.entity = new FullyQualifiedJavaType(introspectedTable.getBaseRecordType());

this.condition = new FullyQualifiedJavaType(this.entity.getFullyQualifiedName() + ".Condition");

this.example = new FullyQualifiedJavaType(this.entity.getFullyQualifiedName() + "Example");

this.config.abstractServiceFQN.addTypeArgument(new FullyQualifiedJavaType(this.entity.getShortName()));

this.shortCondition = new FullyQualifiedJavaType(this.entity.getShortName() + "." + this.condition.getShortName());

this.config.abstractServiceFQN.addTypeArgument(this.condition);

}

/**

* 生成额外java文件

*/

@Override

public List<GeneratedJavaFile> contextGenerateAdditionalJavaFiles(IntrospectedTable introspectedTable) {

JavaClientGeneratorConfiguration javaClientGeneratorConfiguration = introspectedTable.getContext().getJavaClientGeneratorConfiguration();

String targetProject = javaClientGeneratorConfiguration.getTargetProject();

CompilationUnit addServiceInterface = addServiceInterface(introspectedTable);

CompilationUnit addServiceInterfaceImpl = addServiceImplClazz(introspectedTable, addServiceInterface);

GeneratedJavaFile gjfServiceInterface = new GeneratedJavaFile(addServiceInterface, targetProject,

this.context.getProperty("javaFileEncoding"), this.context.getJavaFormatter());

GeneratedJavaFile gjfServiceInterfaceImpl = new GeneratedJavaFile(addServiceInterfaceImpl, targetProject,

this.context.getProperty("javaFileEncoding"), this.context.getJavaFormatter());

List<GeneratedJavaFile> list = new ArrayList<>();

list.add(gjfServiceInterface);

list.add(gjfServiceInterfaceImpl);

return list;

}

private CompilationUnit addServiceInterface(IntrospectedTable introspectedTable) {

//获取baseservice接口

FullyQualifiedJavaType superInterfaceType = new FullyQualifiedJavaType(this.config.baseServiceFQN.getShortName());

// 添加实体类

superInterfaceType.addTypeArgument(new FullyQualifiedJavaType(this.entity.getShortName()));

// 添加实体类Condition

superInterfaceType.addTypeArgument(new FullyQualifiedJavaType(this.entity.getShortName() + "." + this.condition.getShortName()));

//生成service接口

Interface serviceInterface = new Interface(this.config.servicePackage + "." + this.entity.getShortName() + "Service");

//添加父接口

serviceInterface.addSuperInterface(superInterfaceType);

serviceInterface.setVisibility(JavaVisibility.PUBLIC);

//导入

serviceInterface.addImportedType(this.entity);

serviceInterface.addImportedType(this.condition);

serviceInterface.addImportedType(this.config.baseServiceFQN);

return serviceInterface;

}

protected CompilationUnit addServiceImplClazz(IntrospectedTable introspectedTable, CompilationUnit superInterface) {

TopLevelClass serviceImplClazz = new TopLevelClass(superInterface.getType().getPackageName() + ".impl." + superInterface.getType().getShortName() + "Impl");

// 添加父类 接口 注解

serviceImplClazz.addSuperInterface(new FullyQualifiedJavaType(superInterface.getType().getShortName()));

serviceImplClazz.setSuperClass(new FullyQualifiedJavaType(this.config.abstractServiceFQN.getShortName()));

serviceImplClazz.setVisibility(JavaVisibility.PUBLIC);

serviceImplClazz.addAnnotation("@Service");

// 添加logger

FullyQualifiedJavaType logType = new FullyQualifiedJavaType("org.slf4j.Logger");

FullyQualifiedJavaType logFactoryType = new FullyQualifiedJavaType("org.slf4j.LoggerFactory");

Field logField = new Field();

logField.setVisibility(JavaVisibility.PRIVATE);

logField.setStatic(true);

logField.setFinal(true);

logField.setType(logType);

logField.setName("logger");

logField.setInitializationString("LoggerFactory.getLogger(" + serviceImplClazz.getType().getShortName() + ".class)");

serviceImplClazz.addField(logField);

// 添加mapper

FullyQualifiedJavaType mapper = new FullyQualifiedJavaType(introspectedTable.getMyBatis3JavaMapperType());

FullyQualifiedJavaType shortMapper = new FullyQualifiedJavaType(mapper.getShortName());

String name = mapper.getShortName();

name = name.substring(0, 1).toLowerCase() + name.substring(1);

Field mapperField = new Field(name, shortMapper);

mapperField.setVisibility(JavaVisibility.PRIVATE);

mapperField.addAnnotation("@Autowired");

serviceImplClazz.addField(mapperField);

// 添加方法

// getSqlMapper

serviceImplClazz.addMethod(getSqlMapper(mapperField, shortMapper));

// findByCondition

serviceImplClazz.addMethod(findByCondition(mapperField));

// countByCondition

serviceImplClazz.addMethod(countByCondition(mapperField));

// delete

serviceImplClazz.addMethod(delete());

// 倒入

serviceImplClazz.addImportedType(new FullyQualifiedJavaType("org.springframework.beans.factory.annotation.Autowired"));

serviceImplClazz.addImportedType(new FullyQualifiedJavaType("org.springframework.stereotype.Service"));

serviceImplClazz.addImportedType(superInterface.getType());

serviceImplClazz.addImportedType(this.config.abstractServiceFQN);

serviceImplClazz.addImportedType(this.entity);

serviceImplClazz.addImportedType(this.condition);

serviceImplClazz.addImportedType(logType);

serviceImplClazz.addImportedType(logFactoryType);

serviceImplClazz.addImportedType(mapper);

return serviceImplClazz;

}

private Method delete() {

Method delete = new Method("delete");

delete.setVisibility(JavaVisibility.PUBLIC);

delete.addAnnotation("@Override");

Parameter id = new Parameter(new FullyQualifiedJavaType("Integer"), "id");

delete.addParameter(id);

delete.addBodyLine("return 0;");

delete.setReturnType(new FullyQualifiedJavaType("int"));

return delete;

}

private Method countByCondition(Field field) {

Method countByCondition = new Method("countByCondition");

countByCondition.setVisibility(JavaVisibility.PUBLIC);

countByCondition.addAnnotation("@Override");

// condition

Parameter condition = new Parameter(this.shortCondition, "condition");

countByCondition.addParameter(condition);

countByCondition.addBodyLine(this.example.getShortName() + " example = new " + this.example.getShortName() + "();");

countByCondition.addBodyLine("return this." + field.getName() + ".countByExample(example);");

countByCondition.setReturnType(new FullyQualifiedJavaType("long"));

return countByCondition;

}

private Method findByCondition(Field field) {

Method findByCondition = new Method("findByCondition");

findByCondition.setVisibility(JavaVisibility.PUBLIC);

findByCondition.addAnnotation("@Override");

// condition

Parameter condition = new Parameter(this.shortCondition, "condition");

FullyQualifiedJavaType integer = new FullyQualifiedJavaType("Integer");

Parameter start = new Parameter(integer, "start");

Parameter end = new Parameter(integer, "end");

findByCondition.addParameter(condition);

findByCondition.addParameter(start);

findByCondition.addParameter(end);

// body

findByCondition.addBodyLine(this.example.getShortName() + " example = new " + this.example.getShortName() + "();");

findByCondition.addBodyLine("example.setLimitStart(start);");

findByCondition.addBodyLine("example.setLimitEnd(end);");

findByCondition.addBodyLine("return this." + field.getName() + ".selectByExample(example);");

FullyQualifiedJavaType type = new FullyQualifiedJavaType("List");

type.addTypeArgument(new FullyQualifiedJavaType(this.entity.getShortName()));

findByCondition.setReturnType(type);

return findByCondition;

}

private Method getSqlMapper(Field field, FullyQualifiedJavaType shortMapper) {

Method getSqlMapper = new Method("getSqlMapper");

getSqlMapper.setVisibility(JavaVisibility.PROTECTED);

getSqlMapper.addAnnotation("@Override");

getSqlMapper.addBodyLine("return this." + field.getName() + ";");

getSqlMapper.setReturnType(shortMapper);

return getSqlMapper;

}

private static final class Config extends BasePluginConfig {

private String servicePackage;

private FullyQualifiedJavaType baseServiceFQN;

private FullyQualifiedJavaType abstractServiceFQN;

protected Config(Properties props) {

super(props);

this.servicePackage = props.getProperty("servicePackage");

this.baseServiceFQN = new FullyQualifiedJavaType(props.getProperty("baseServiceFQN"));

this.abstractServiceFQN = new FullyQualifiedJavaType(props.getProperty("abstractServiceFQN"));

}

}

}