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16 package org.mybatis.spring.config;
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18 import java.lang.annotation.Annotation;
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20 import org.mybatis.spring.mapper.ClassPathMapperScanner;
21 import org.mybatis.spring.mapper.MapperFactoryBean;
22 import org.mybatis.spring.mapper.MapperScannerConfigurer;
23 import org.springframework.beans.BeanUtils;
24 import org.springframework.beans.factory.config.BeanDefinition;
25 import org.springframework.beans.factory.support.AbstractBeanDefinition;
26 import org.springframework.beans.factory.support.BeanDefinitionBuilder;
27 import org.springframework.beans.factory.support.BeanNameGenerator;
28 import org.springframework.beans.factory.xml.AbstractBeanDefinitionParser;
29 import org.springframework.beans.factory.xml.ParserContext;
30 import org.springframework.beans.factory.xml.XmlReaderContext;
31 import org.springframework.util.ClassUtils;
32 import org.springframework.util.StringUtils;
33 import org.w3c.dom.Element;
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48 public class MapperScannerBeanDefinitionParser extends AbstractBeanDefinitionParser {
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50 private static final String ATTRIBUTE_BASE_PACKAGE = "base-package";
51 private static final String ATTRIBUTE_ANNOTATION = "annotation";
52 private static final String ATTRIBUTE_MARKER_INTERFACE = "marker-interface";
53 private static final String ATTRIBUTE_NAME_GENERATOR = "name-generator";
54 private static final String ATTRIBUTE_TEMPLATE_REF = "template-ref";
55 private static final String ATTRIBUTE_FACTORY_REF = "factory-ref";
56 private static final String ATTRIBUTE_MAPPER_FACTORY_BEAN_CLASS = "mapper-factory-bean-class";
57 private static final String ATTRIBUTE_LAZY_INITIALIZATION = "lazy-initialization";
58 private static final String ATTRIBUTE_DEFAULT_SCOPE = "default-scope";
59 private static final String ATTRIBUTE_PROCESS_PROPERTY_PLACEHOLDERS = "process-property-placeholders";
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66 @Override
67 protected AbstractBeanDefinition parseInternal(Element element, ParserContext parserContext) {
68 BeanDefinitionBuilder builder = BeanDefinitionBuilder.genericBeanDefinition(MapperScannerConfigurer.class);
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70 ClassLoader classLoader = ClassUtils.getDefaultClassLoader();
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72 String processPropertyPlaceHolders = element.getAttribute(ATTRIBUTE_PROCESS_PROPERTY_PLACEHOLDERS);
73 builder.addPropertyValue("processPropertyPlaceHolders",
74 !StringUtils.hasText(processPropertyPlaceHolders) || Boolean.parseBoolean(processPropertyPlaceHolders));
75 try {
76 String annotationClassName = element.getAttribute(ATTRIBUTE_ANNOTATION);
77 if (StringUtils.hasText(annotationClassName)) {
78 @SuppressWarnings("unchecked")
79 Class<? extends Annotation> annotationClass = (Class<? extends Annotation>) classLoader
80 .loadClass(annotationClassName);
81 builder.addPropertyValue("annotationClass", annotationClass);
82 }
83 String markerInterfaceClassName = element.getAttribute(ATTRIBUTE_MARKER_INTERFACE);
84 if (StringUtils.hasText(markerInterfaceClassName)) {
85 Class<?> markerInterface = classLoader.loadClass(markerInterfaceClassName);
86 builder.addPropertyValue("markerInterface", markerInterface);
87 }
88 String nameGeneratorClassName = element.getAttribute(ATTRIBUTE_NAME_GENERATOR);
89 if (StringUtils.hasText(nameGeneratorClassName)) {
90 Class<?> nameGeneratorClass = classLoader.loadClass(nameGeneratorClassName);
91 BeanNameGenerator nameGenerator = BeanUtils.instantiateClass(nameGeneratorClass, BeanNameGenerator.class);
92 builder.addPropertyValue("nameGenerator", nameGenerator);
93 }
94 String mapperFactoryBeanClassName = element.getAttribute(ATTRIBUTE_MAPPER_FACTORY_BEAN_CLASS);
95 if (StringUtils.hasText(mapperFactoryBeanClassName)) {
96 @SuppressWarnings("unchecked")
97 Class<? extends MapperFactoryBean> mapperFactoryBeanClass = (Class<? extends MapperFactoryBean>) classLoader
98 .loadClass(mapperFactoryBeanClassName);
99 builder.addPropertyValue("mapperFactoryBeanClass", mapperFactoryBeanClass);
100 }
101 } catch (Exception ex) {
102 XmlReaderContext readerContext = parserContext.getReaderContext();
103 readerContext.error(ex.getMessage(), readerContext.extractSource(element), ex.getCause());
104 }
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106 builder.addPropertyValue("sqlSessionTemplateBeanName", element.getAttribute(ATTRIBUTE_TEMPLATE_REF));
107 builder.addPropertyValue("sqlSessionFactoryBeanName", element.getAttribute(ATTRIBUTE_FACTORY_REF));
108 builder.addPropertyValue("lazyInitialization", element.getAttribute(ATTRIBUTE_LAZY_INITIALIZATION));
109 builder.addPropertyValue("defaultScope", element.getAttribute(ATTRIBUTE_DEFAULT_SCOPE));
110 builder.addPropertyValue("basePackage", element.getAttribute(ATTRIBUTE_BASE_PACKAGE));
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113 builder.setRole(BeanDefinition.ROLE_INFRASTRUCTURE);
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115 return builder.getBeanDefinition();
116 }
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123 @Override
124 protected boolean shouldGenerateIdAsFallback() {
125 return true;
126 }
127
128 }