public String evalFieldType(MappingField mf) {
if (mf.getCustomDbType() != null) return mf.getCustomDbType();
switch (mf.getColumnType()) {
case CHAR:
return "CHAR(" + mf.getWidth() + ")";
case BOOLEAN:
return "BOOLEAN";
case VARCHAR:
return "VARCHAR(" + mf.getWidth() + ")";
case TEXT:
return "TEXT";
case BINARY:
return "BLOB";
case TIMESTAMP:
return "TIMESTAMP";
case DATETIME:
return "DATETIME";
case DATE:
return "DATE";
case TIME:
return "TIME";
case INT:
// 用户自定义了宽度
if (mf.getWidth() > 0) return "INT(" + mf.getWidth() + ")";
// 用数据库的默认宽度
return "INT";
case FLOAT:
// 用户自定义了精度
if (mf.getWidth() > 0 && mf.getPrecision() > 0) {
return "NUMERIC(" + mf.getWidth() + "," + mf.getPrecision() + ")";
}
// 用默认精度
if (mf.getTypeMirror().isDouble()) return "NUMERIC(15,10)";
return "FLOAT";
case PSQL_ARRAY:
return "ARRAY";
case PSQL_JSON:
case MYSQL_JSON:
return "JSON";
// TODO 这里不用加 default 么
}
throw Lang.makeThrow(
"Unsupport colType '%s' of field '%s' in '%s' ",
mf.getColumnType(), mf.getName(), mf.getEntity().getType().getName());
}
@SuppressWarnings({"unchecked", "rawtypes"})
public static boolean filterFields(
Object obj, FieldMatcher matcher, Dao dao, Callback2<MappingField, Object> callback) {
if (obj == null) return false;
obj = Lang.first(obj);
if (obj == null) {
return false;
}
if (obj.getClass() == Class.class) {
throw Lang.impossible();
}
if (obj instanceof String || obj instanceof Number || obj instanceof Boolean) {
throw Lang.impossible();
}
Entity en = dao.getEntity(obj.getClass());
if (en == null) {
throw Lang.impossible();
}
List<MappingField> mfs = en.getMappingFields();
if (matcher != null) {
Iterator<MappingField> it = mfs.iterator();
while (it.hasNext()) {
MappingField mf = it.next();
if (!matcher.match(mf.getName())) it.remove();
}
}
boolean flag = false;
for (MappingField mf : mfs) {
if (matcher.isIgnoreId() && mf.isId()) continue;
if (matcher.isIgnoreName() && mf.isName()) continue;
if (matcher.isIgnorePk() && mf.isCompositePk()) continue;
Object val = mf.getValue(obj);
if (val == null) {
if (matcher.isIgnoreNull()) continue;
}
if (val instanceof Number && ((Number) val).doubleValue() == 0.0) {
if (matcher.isIgnoreZero()) continue;
}
if (val instanceof Date) {
if (matcher.isIgnoreDate()) continue;
}
callback.invoke(mf, val);
flag = true;
}
return flag;
}
/** 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;
}