public void setExpert(Object obj) throws Exception {
if (obj == null) throw new NullPointerException("expert MUST NOT NULL!!");
if (obj instanceof JdbcExpert) {
this.expert = (JdbcExpert) obj;
} else {
String name = obj.toString();
this.expert = Jdbcs.getExpert(name, "");
if (this.expert == null) {
if (name.contains(".")) {
this.expert = (JdbcExpert) Lang.loadClass(name).newInstance();
} else {
throw new DaoException("not such expert=" + obj);
}
}
}
DataSource ds = this.dataSource;
// 如果数据源比expert先设置,那么需要重新设置一次
if (ds != null) {
this.dataSource = null;
setDataSource(ds);
}
}
/** 根据Pojo生成数据字典,zdoc格式 */
public static StringBuilder dataDict(DataSource ds, String... packages) {
StringBuilder sb = new StringBuilder();
List<Class<?>> ks = new ArrayList<Class<?>>();
for (String packageName : packages) {
ks.addAll(Scans.me().scanPackage(packageName));
}
Iterator<Class<?>> it = ks.iterator();
while (it.hasNext()) {
Class<?> klass = it.next();
if (klass.getAnnotation(Table.class) == null) it.remove();
}
// log.infof("Found %d table class", ks.size());
JdbcExpert exp = Jdbcs.getExpert(ds);
NutDao dao = new NutDao(ds);
Method evalFieldType;
try {
evalFieldType = exp.getClass().getDeclaredMethod("evalFieldType", MappingField.class);
} catch (Throwable e) {
throw Lang.wrapThrow(e);
}
evalFieldType.setAccessible(true);
Entity<?> entity = null;
String line = "-------------------------------------------------------------------\n";
sb.append("#title:数据字典\n");
sb.append("#author:wendal\n");
sb.append("#index:0,1\n").append(line);
for (Class<?> klass : ks) {
sb.append(line);
entity = dao.getEntity(klass);
sb.append("表名 ").append(entity.getTableName()).append("\n\n");
if (!Strings.isBlank(entity.getTableComment()))
sb.append("表注释: ").append(entity.getTableComment());
sb.append("\t").append("Java类名 ").append(klass.getName()).append("\n\n");
sb.append("\t||序号||列名||数据类型||主键||非空||默认值||java属性名||java类型||注释||\n");
int index = 1;
for (MappingField field : entity.getMappingFields()) {
String dataType;
try {
dataType = (String) evalFieldType.invoke(exp, field);
} catch (Throwable e) {
throw Lang.wrapThrow(e); // 不可能发生的
}
sb.append("\t||")
.append(index++)
.append("||")
.append(field.getColumnName())
.append("||")
.append(dataType)
.append("||")
.append(field.isPk())
.append("||")
.append(field.isNotNull())
.append("||")
.append(field.getDefaultValue(null) == null ? " " : field.getDefaultValue(null))
.append("||")
.append(field.getName())
.append("||")
.append(field.getTypeClass().getName())
.append("||")
.append(field.getColumnComment() == null ? " " : field.getColumnComment())
.append("||\n");
}
}
return sb;
}