org.quartz.utils.JNDIConnectionProvider Maven / Gradle / Ivy
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SDK for dev_appserver (local development) with some of the dependencies shaded (repackaged)
/*
* Copyright 2004-2005 OpenSymphony
*
* 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.
*
*/
/*
* Previously Copyright (c) 2001-2004 James House
*/
package org.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 com.google.appengine.repackaged.org.apache.commons.logging.Log;
import com.google.appengine.repackaged.org.apache.commons.logging.LogFactory;
/**
*
* 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;
/*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
* 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.
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/
Log getLog() {
return LogFactory.getLog(getClass());
}
private void init() {
if (!isAlwaysLookup()) {
Context ctx = null;
try {
if (props != null) ctx = new InitialContext(props);
else
ctx = 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()) {
if (props != null) ctx = new InitialContext(props);
else
ctx = 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 org.quartz.utils.ConnectionProvider#shutdown()
*/
public void shutdown() throws SQLException {
// do nothing
}
}