import org.apache.ibatis.datasource.DataSourceException; //导入依赖的package包/类
@Override
public void setProperties(Properties properties) {
  try {
    InitialContext initCtx;
    Properties env = getEnvProperties(properties);
    if (env == null) {
      initCtx = new InitialContext();
    } else {
      initCtx = new InitialContext(env);
    }

    if (properties.containsKey(INITIAL_CONTEXT)
        && properties.containsKey(DATA_SOURCE)) {
      Context ctx = (Context) initCtx.lookup(properties.getProperty(INITIAL_CONTEXT));
      dataSource = (DataSource) ctx.lookup(properties.getProperty(DATA_SOURCE));
    } else if (properties.containsKey(DATA_SOURCE)) {
      dataSource = (DataSource) initCtx.lookup(properties.getProperty(DATA_SOURCE));
    }

  } catch (NamingException e) {
    throw new DataSourceException("There was an error configuring JndiDataSourceTransactionPool. Cause: " + e, e);
  }
}
 

import org.apache.ibatis.datasource.DataSourceException; //导入依赖的package包/类
@Test
public void shouldInstantiateAndThrowAllCustomExceptions() throws Exception {
  Class<?>[] exceptionTypes = {
      BindingException.class,
      CacheException.class,
      DataSourceException.class,
      ExecutorException.class,
      LogException.class,
      ParsingException.class,
      BuilderException.class,
      PluginException.class,
      ReflectionException.class,
      PersistenceException.class,
      SqlSessionException.class,
      TransactionException.class,
      TypeException.class, 
      ScriptingException.class
  };
  for (Class<?> exceptionType : exceptionTypes) {
    testExceptionConstructors(exceptionType);
  }

}
 

import org.apache.ibatis.datasource.DataSourceException; //导入依赖的package包/类
@Override
public void setProperties(Properties properties) {
  try {
    InitialContext initCtx = null;
    Properties env = getEnvProperties(properties);
    if (env == null) {
      initCtx = new InitialContext();
    } else {
      initCtx = new InitialContext(env);
    }

    if (properties.containsKey(INITIAL_CONTEXT)
        && properties.containsKey(DATA_SOURCE)) {
      Context ctx = (Context) initCtx.lookup(properties.getProperty(INITIAL_CONTEXT));
      dataSource = (DataSource) ctx.lookup(properties.getProperty(DATA_SOURCE));
    } else if (properties.containsKey(DATA_SOURCE)) {
      dataSource = (DataSource) initCtx.lookup(properties.getProperty(DATA_SOURCE));
    }

  } catch (NamingException e) {
    throw new DataSourceException("There was an error configuring JndiDataSourceTransactionPool. Cause: " + e, e);
  }
}
 

import org.apache.ibatis.datasource.DataSourceException; //导入依赖的package包/类
@Override
public void setProperties(Properties properties) {
  try {
    InitialContext initCtx = null;
    Properties env = getEnvProperties(properties);
    if (env == null) {
      initCtx = new InitialContext();
    } else {
      initCtx = new InitialContext(env);
    }

    if (properties.containsKey(INITIAL_CONTEXT)
        && properties.containsKey(DATA_SOURCE)) {
  	  //从JNDI上下文中找到DataSource并返回  
      Context ctx = (Context) initCtx.lookup(properties.getProperty(INITIAL_CONTEXT));
      dataSource = (DataSource) ctx.lookup(properties.getProperty(DATA_SOURCE));
    } else if (properties.containsKey(DATA_SOURCE)) {
  	  //从JNDI上下文中找到DataSource并返回 
      dataSource = (DataSource) initCtx.lookup(properties.getProperty(DATA_SOURCE));
    }

  } catch (NamingException e) {
    throw new DataSourceException("There was an error configuring JndiDataSourceTransactionPool. Cause: " + e, e);
  }
}
 

import org.apache.ibatis.datasource.DataSourceException; //导入依赖的package包/类
@Override
public void setProperties(final Properties properties) {
    final Properties driverProperties = new Properties();
    final MetaObject metaDataSource = SystemMetaObject.forObject(dataSource);
    for (final Object key : properties.keySet()) {
        final String propertyName = (String) key;
        if (metaDataSource.hasSetter(propertyName)) {
            final String value = (String) properties.get(propertyName);
            /**　对没有设置值的属性跳过设置 */
            if (StringUtils.isNotEmpty(value) && value.startsWith("${") && value.endsWith("}")) {
                continue;
            }

            final Object convertedValue = convertValue(metaDataSource, propertyName, value);
            metaDataSource.setValue(propertyName, convertedValue);
        } else {
            throw new DataSourceException("Unknown DataSource property: " + propertyName);
        }
    }

    if (driverProperties.size() > 0) {
        metaDataSource.setValue("driverProperties", driverProperties);
    }
}
 

import org.apache.ibatis.datasource.DataSourceException; //导入依赖的package包/类
private void createJndiDataSource() throws Exception {
  try {
    Hashtable<String, String> env = new Hashtable<String, String>();
    env.put(Context.INITIAL_CONTEXT_FACTORY, TEST_INITIAL_CONTEXT_FACTORY);

    MockContext ctx = new MockContext(false);
    ctx.bind(TEST_DATA_SOURCE, expectedDataSource);

    InitialContext initCtx = new InitialContext(env);
    initCtx.bind(TEST_INITIAL_CONTEXT, ctx);
  } catch (NamingException e) {
    throw new DataSourceException("There was an error configuring JndiDataSourceTransactionPool. Cause: " + e, e);
  }
}
 

import org.apache.ibatis.datasource.DataSourceException; //导入依赖的package包/类
public C3P0DataSourceFactory() {
    try {
        Class<?> comboPooledDataSource = Class.forName("com.mchange.v2.c3p0.ComboPooledDataSource");
        this.dataSource = (DataSource) comboPooledDataSource.newInstance();
    } catch (final ClassNotFoundException | InstantiationException | IllegalAccessException e) {
        throw new DataSourceException(e.getMessage(), e);
    }
}
 

import org.apache.ibatis.datasource.DataSourceException; //导入依赖的package包/类
public TomcatJdbcPoolDataSourceFactory() {
    try {
        tomcatJdbcDataSource = Class.forName("org.apache.tomcat.jdbc.pool.DataSource");
        this.dataSource = (DataSource) tomcatJdbcDataSource.newInstance();
    } catch (final ClassNotFoundException | InstantiationException | IllegalAccessException e) {
        throw new DataSourceException(e.getMessage(), e);
    }
}
 

import org.apache.ibatis.datasource.DataSourceException; //导入依赖的package包/类
public DruidDataSourceFactory() {
    try {
        Class<?> druidDataSource = Class.forName("com.alibaba.druid.pool.DruidDataSource");
        this.dataSource = (DataSource) druidDataSource.newInstance();
    } catch (final ClassNotFoundException | InstantiationException | IllegalAccessException e) {
        throw new DataSourceException(e.getMessage(), e);
    }
}