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BaseBuilder

BaseBuilder

作者: 尼尔君 | 来源:发表于2018-08-30 19:43 被阅读0次

package Mybatis;

//
//Source code recreated from a .class file by IntelliJ IDEA
//(powered by Fernflower decompiler)
//


import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;
import java.util.regex.Pattern;
import org.apache.ibatis.mapping.ParameterMode;
import org.apache.ibatis.mapping.ResultSetType;
import org.apache.ibatis.session.Configuration;
import org.apache.ibatis.type.JdbcType;
import org.apache.ibatis.type.TypeAliasRegistry;
import org.apache.ibatis.type.TypeHandler;
import org.apache.ibatis.type.TypeHandlerRegistry;

public abstract class BaseBuilder {
 protected final Configuration configuration;
 protected final TypeAliasRegistry typeAliasRegistry;
 protected final TypeHandlerRegistry typeHandlerRegistry;

 public BaseBuilder(Configuration configuration) {
     this.configuration = configuration;
     this.typeAliasRegistry = this.configuration.getTypeAliasRegistry();
     this.typeHandlerRegistry = this.configuration.getTypeHandlerRegistry();
 }

 public Configuration getConfiguration() {
     return this.configuration;
 }

 protected Pattern parseExpression(String regex, String defaultValue) {
     return Pattern.compile(regex == null ? defaultValue : regex);
 }

 protected Boolean booleanValueOf(String value, Boolean defaultValue) {
     return value == null ? defaultValue : Boolean.valueOf(value);
 }

 protected Integer integerValueOf(String value, Integer defaultValue) {
     return value == null ? defaultValue : Integer.valueOf(value);
 }

 protected Set<String> stringSetValueOf(String value, String defaultValue) {
     value = value == null ? defaultValue : value;
     return new HashSet(Arrays.asList(value.split(",")));
 }

 protected JdbcType resolveJdbcType(String alias) {
     if (alias == null) {
         return null;
     } else {
         try {
             return JdbcType.valueOf(alias);
         } catch (IllegalArgumentException var3) {
             throw new BuilderException("Error resolving JdbcType. Cause: " + var3, var3);
         }
     }
 }

 protected ResultSetType resolveResultSetType(String alias) {
     if (alias == null) {
         return null;
     } else {
         try {
             return ResultSetType.valueOf(alias);
         } catch (IllegalArgumentException var3) {
             throw new BuilderException("Error resolving ResultSetType. Cause: " + var3, var3);
         }
     }
 }

 protected ParameterMode resolveParameterMode(String alias) {
     if (alias == null) {
         return null;
     } else {
         try {
             return ParameterMode.valueOf(alias);
         } catch (IllegalArgumentException var3) {
             throw new BuilderException("Error resolving ParameterMode. Cause: " + var3, var3);
         }
     }
 }

 protected Object createInstance(String alias) {
     Class<?> clazz = this.resolveClass(alias);
     if (clazz == null) {
         return null;
     } else {
         try {
             return this.resolveClass(alias).newInstance();
         } catch (Exception var4) {
             throw new BuilderException("Error creating instance. Cause: " + var4, var4);
         }
     }
 }

 protected Class<?> resolveClass(String alias) {
     if (alias == null) {
         return null;
     } else {
         try {
             return this.resolveAlias(alias);
         } catch (Exception var3) {
             throw new BuilderException("Error resolving class. Cause: " + var3, var3);
         }
     }
 }

 protected TypeHandler<?> resolveTypeHandler(Class<?> javaType, String typeHandlerAlias) {
     if (typeHandlerAlias == null) {
         return null;
     } else {
         Class<?> type = this.resolveClass(typeHandlerAlias);
         if (type != null && !TypeHandler.class.isAssignableFrom(type)) {
             throw new BuilderException("Type " + type.getName() + " is not a valid TypeHandler because it does not implement TypeHandler interface");
         } else {
             return this.resolveTypeHandler(javaType, type);
         }
     }
 }

 protected TypeHandler<?> resolveTypeHandler(Class<?> javaType, Class<? extends TypeHandler<?>> typeHandlerType) {
     if (typeHandlerType == null) {
         return null;
     } else {
         TypeHandler<?> handler = this.typeHandlerRegistry.getMappingTypeHandler(typeHandlerType);
         if (handler == null) {
             handler = this.typeHandlerRegistry.getInstance(javaType, typeHandlerType);
         }

         return handler;
     }
 }

 protected Class<?> resolveAlias(String alias) {
     return this.typeAliasRegistry.resolveAlias(alias);
 }
}


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