cubrid.jdbc.jci.UJCIManager Maven / Gradle / Ivy
/*
* Copyright (C) 2008 Search Solution Corporation. All rights reserved by Search Solution.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* - Neither the name of the nor the names of its contributors
* may be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
*/
/**
* Title: CUBRID Java Client Interface
* Description: CUBRID Java Client Interface
* @version 2.0
*/
package cubrid.jdbc.jci;
import java.net.Socket;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.Hashtable;
abstract public class UJCIManager {
// static Vector connectionList;
static String sysCharsetName;
static Hashtable url_cache_table;
static ArrayList url_cache_remove_list;
static JdbcCacheWorker CACHE_Manager;
static boolean result_cache_enable = true;
static {
// connectionList = new Vector();
sysCharsetName = System.getProperty("file.encoding");
url_cache_table = new Hashtable(10);
url_cache_remove_list = new ArrayList(10);
try {
CACHE_Manager = new JdbcCacheWorker();
CACHE_Manager.setDaemon(true);
CACHE_Manager.setContextClassLoader(null);
CACHE_Manager.start();
} catch (Exception e) {
e.printStackTrace();
result_cache_enable = false;
}
}
public static UConnection connect(String ip, int port, String name,
String user, String passwd, String url)
throws java.sql.SQLException {
UConnection connection;
connection = new UConnection(ip, port, name, user, passwd, url);
// connectionList.add(connection);
return connection;
}
public static UConnection connect(ArrayList aConList, String name,
String user, String passwd, String url)
throws java.sql.SQLException {
UConnection connection;
connection = new UConnection(aConList, name, user, passwd, url);
// connectionList.add(connection);
return connection;
}
static UUrlCache getUrlCache(UUrlHostKey key) {
UUrlCache url_cache;
url_cache = url_cache_table.get(key);
if (url_cache != null)
return url_cache;
synchronized (url_cache_table) {
url_cache = url_cache_table.get(key);
if (url_cache == null) {
url_cache = new UUrlCache();
url_cache_table.put(key, url_cache);
synchronized (url_cache_remove_list) {
url_cache_remove_list.add(url_cache);
}
}
}
return url_cache;
}
public static UConnection connectDefault() throws SQLException {
Object curThread = Thread.currentThread();
Socket s = (Socket) UJCIUtil.invoke("com.cubrid.jsp.ExecuteThread",
"getSocket", null, curThread, null);
return new UConnection(s, curThread);
}
/*
* delete the UConnection object from connection list
*
* synchronized static boolean deleteInList (UConnection element) { if
* (connectionList.contains(element)==false) return false;
*
* return connectionList.remove(element); }
*/
}
class JdbcCacheWorker extends Thread {
public void run() {
while (true) {
try {
long curTime = System.currentTimeMillis();
synchronized (UJCIManager.url_cache_remove_list) {
for (int i = 0; i < UJCIManager.url_cache_remove_list.size(); i++) {
UUrlCache uc = (UUrlCache) UJCIManager.url_cache_remove_list.get(i);
uc.remove_expired_stmt(curTime);
}
}
} catch (Exception e) {
}
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
}
}
}
}