package org.eweb4j.orm.dao.config;
import java.io.File;
import javax.sql.DataSource;
import org.eweb4j.cache.DBInfoConfigBeanCache;
import org.eweb4j.cache.SingleBeanCache;
import org.eweb4j.config.CheckConfigBean;
import org.eweb4j.config.ConfigConstant;
import org.eweb4j.config.LogFactory;
import org.eweb4j.config.bean.ConfigBean;
import org.eweb4j.config.bean.DBInfoXmlFiles;
import org.eweb4j.orm.dao.config.bean.DBInfoConfigBean;
import org.eweb4j.orm.jdbc.DataSourceCreator;
import org.eweb4j.orm.jdbc.DataSourceWrap;
import org.eweb4j.orm.jdbc.DataSourceWrapCache;
import org.eweb4j.util.FileUtil;
import org.eweb4j.util.StringUtil;
import org.eweb4j.util.xml.BeanXMLUtil;
import org.eweb4j.util.xml.XMLReader;
import org.eweb4j.util.xml.XMLWriter;
public class DAOConfig {
public synchronized static String check() {
String error = null;
ConfigBean cb = (ConfigBean) SingleBeanCache
.get(ConfigConstant.CONFIGBEAN_ID);
if (cb == null)
return null;
DBInfoXmlFiles dbInfoXmlFiles = cb.getOrm().getDbInfoXmlFiles();
if (dbInfoXmlFiles == null)
return ConfigInfoCons.CANNOT_READ_CONFIG_FILE;
for (String filePath : dbInfoXmlFiles.getPath()) {
if (filePath == null || filePath.length() == 0)
continue;
File configFile = new File(ConfigConstant.CONFIG_BASE_PATH
+ filePath);
try {
XMLReader reader = BeanXMLUtil.getBeanXMLReader(configFile);
reader.setBeanName("dataSource");
reader.setClass("dataSource", DBInfoConfigBean.class);
DBInfoConfigBean dcb = reader.readOne();
if (dcb == null) {
error = rebuildXmlFile(configFile,
ConfigInfoCons.REPAIR_FILE_INFO);
} else {
String error1 = CheckConfigBean.checkORMDBInfo(dcb,
filePath);
if (error1 == null) {
DBInfoConfigBeanCache.add(dcb.getDsName(), dcb);
DataSource ds = DataSourceCreator.create(dcb);
DataSourceWrap dsw = new DataSourceWrap(
dcb.getDsName(), ds);
String error2 = dsw.getConnection() == null ? ConfigInfoCons.CANNOT_GET_DB_CON
: null;
if (error2 != null)
if (error == null)
error = error2;
else
error += error2;
else {
String info = dcb.getDsName()
+ ConfigInfoCons.READ_CONFIG_INFO_SUCCESS;
LogFactory.getORMLogger("INFO").write(info);
// ------log-------
// 将数据源放入缓存，它可是个重量级对象
// 此步也是为了共存多个数据源
DataSourceWrapCache.put(dcb.getDsName(), dsw);
}
} else if (error == null)
error = error1;
else
error += error1;
}
} catch (Exception e) {
e.printStackTrace();
error = rebuildXmlFile(configFile,
StringUtil.getExceptionString(e));
}
}
if (error != null)
DBInfoConfigBeanCache.clear();
return error;
}
private static String rebuildXmlFile(File configFile, String err) {
String error = null;
try {
// 保存为备份文件
File tf = new File(configFile.getAbsolutePath() + ".back"
+ StringUtil.getNowTime("_MMddHHmmss"));
FileUtil.copy(configFile, tf);
LogFactory.getORMLogger("INFO").write(
"backup file->" + tf.getAbsolutePath());
XMLWriter writer = BeanXMLUtil.getBeanXMLWriter(configFile,
DAOConfigBeanCreator.getDAOBean());
writer.setBeanName("dataSource");
writer.setClass("dataSource", DBInfoConfigBean.class);
writer.write();
StringBuilder tsb = new StringBuilder(
ConfigInfoCons.REPAIR_CONFIG_FILE);
tsb.append(err);
error = tsb.toString();
LogFactory.getORMLogger("ERROR").write(error);
} catch (Exception e1) {
e1.printStackTrace();
StringBuilder sb2 = new StringBuilder(
ConfigInfoCons.CANNOT_REPAIR_FILE);
sb2.append(StringUtil.getExceptionString(e1));
error = sb2.toString();
LogFactory.getORMLogger("ERROR").write(error);
}
return error;
}
}