io.logspace.agent.shaded.quartz.utils.JNDIConnectionProvider Maven / Gradle / Ivy
/*
* Copyright 2001-2009 Terracotta, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy
* of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
*/
package io.logspace.agent.shaded.quartz.utils;
import java.sql.Connection;
import java.sql.SQLException;
import java.util.Properties;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.sql.DataSource;
import javax.sql.XADataSource;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
*
* A ConnectionProvider that provides connections from a DataSource
* that is managed by an application server, and made available via JNDI.
*
*
* @see DBConnectionManager
* @see ConnectionProvider
* @see PoolingConnectionProvider
*
* @author James House
* @author Sharada Jambula
* @author Mohammad Rezaei
* @author Patrick Lightbody
* @author Srinivas Venkatarangaiah
*/
public class JNDIConnectionProvider implements ConnectionProvider {
/*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
* Data members.
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/
private String url;
private Properties props;
private Object datasource;
private boolean alwaysLookup = false;
private final Logger log = LoggerFactory.getLogger(getClass());
/*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
* Constructors.
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/
/**
* Constructor
*
* @param jndiUrl
* The url for the datasource
*/
public JNDIConnectionProvider(String jndiUrl, boolean alwaysLookup) {
this.url = jndiUrl;
this.alwaysLookup = alwaysLookup;
init();
}
/**
* Constructor
*
* @param jndiUrl
* The URL for the DataSource
* @param jndiProps
* The JNDI properties to use when establishing the InitialContext
* for the lookup of the given URL.
*/
public JNDIConnectionProvider(String jndiUrl, Properties jndiProps,
boolean alwaysLookup) {
this.url = jndiUrl;
this.props = jndiProps;
this.alwaysLookup = alwaysLookup;
init();
}
/*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
* Interface.
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/
protected Logger getLog() {
return log;
}
private void init() {
if (!isAlwaysLookup()) {
Context ctx = null;
try {
ctx = (props != null) ? new InitialContext(props) : new InitialContext();
datasource = (DataSource) ctx.lookup(url);
} catch (Exception e) {
getLog().error(
"Error looking up datasource: " + e.getMessage(), e);
} finally {
if (ctx != null) {
try { ctx.close(); } catch(Exception ignore) {}
}
}
}
}
public Connection getConnection() throws SQLException {
Context ctx = null;
try {
Object ds = this.datasource;
if (ds == null || isAlwaysLookup()) {
ctx = (props != null) ? new InitialContext(props): new InitialContext();
ds = ctx.lookup(url);
if (!isAlwaysLookup()) {
this.datasource = ds;
}
}
if (ds == null) {
throw new SQLException( "There is no object at the JNDI URL '" + url + "'");
}
if (ds instanceof XADataSource) {
return (((XADataSource) ds).getXAConnection().getConnection());
} else if (ds instanceof DataSource) {
return ((DataSource) ds).getConnection();
} else {
throw new SQLException("Object at JNDI URL '" + url + "' is not a DataSource.");
}
} catch (Exception e) {
this.datasource = null;
throw new SQLException(
"Could not retrieve datasource via JNDI url '" + url + "' "
+ e.getClass().getName() + ": " + e.getMessage());
} finally {
if (ctx != null) {
try { ctx.close(); } catch(Exception ignore) {}
}
}
}
public boolean isAlwaysLookup() {
return alwaysLookup;
}
public void setAlwaysLookup(boolean b) {
alwaysLookup = b;
}
/*
* @see io.logspace.agent.shaded.quartz.utils.ConnectionProvider#shutdown()
*/
public void shutdown() throws SQLException {
// do nothing
}
public void initialize() throws SQLException {
// do nothing, already initialized during constructor call
}
}