package org.nutz.dao.jdbc;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;
import java.util.regex.Pattern;
import org.nutz.dao.DaoException;
import org.nutz.filepool.NutFilePool;
import org.nutz.lang.Mirror;
import org.nutz.lang.util.Disks;
import org.nutz.log.Log;
import org.nutz.log.Logs;
public class JdbcExpertConfigFile {
private Map<String, Class<? extends JdbcExpert>> experts;
private Map<Pattern, Class<? extends JdbcExpert>> _experts;
private Map<String, Object> config;
private NutFilePool pool;
private static final Log log = Logs.get();
JdbcExpertConfigFile init() {
// 即使初始化失败,也继续执行
String home = config.get("pool-home").toString();
try {
home = Disks.normalize(home);
if (home == null)
home = config.get("pool-home").toString();
long max = ((Number) config.get("pool-max")).longValue();
pool = new NutFilePool(home, max);
} catch (Throwable e) {
if (log.isWarnEnabled())
log.warnf("NutDao FilePool create fail!! Blob and Clob Support is DISABLE!! Home="+home, e);
}
return this;
}
public JdbcExpert getExpert(String str) {
Class<? extends JdbcExpert> type = experts.get(str);
return Mirror.me(type).born(config);
}
public JdbcExpert matchExpert(String dbName) {
for (Entry<Pattern, Class<? extends JdbcExpert>> entry : _experts.entrySet()) {
if (entry.getKey().matcher(dbName).find())
return Mirror.me(entry.getValue()).born(this);
}
return null;
}
/**
* 注意,返回的Map实例不允许被修改
*/
public Map<String, Class<? extends JdbcExpert>> getExperts() {
return Collections.unmodifiableMap(experts);
}
public Map<String, Object> getConfig() {
return config;
}
public NutFilePool getPool() {
if (pool == null) {
if (log.isWarnEnabled())
log.warnf("NutDao FilePool create fail!! Blob and Clob Support is DISABLE!!");
throw new DaoException("NutDao FilePool create fail!! Blob and Clob Support is DISABLE!!");
}
return pool;
}
// 在 fromJson 的时候，会被调用
public void setExperts(Map<String, Class<? extends JdbcExpert>> experts) {
this.experts = experts;
this._experts = new HashMap<Pattern, Class<? extends JdbcExpert>>();
for (Entry<String, Class<? extends JdbcExpert>> entry : experts.entrySet()) {
//忽略大小写,并且让换行符与.能够匹配
_experts.put(Pattern.compile(entry.getKey(), Pattern.DOTALL & Pattern.CASE_INSENSITIVE), entry.getValue());
}
}
public void setConfig(Map<String, Object> config) {
this.config = config;
}
}