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SimpleContext.java
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134 lines (111 loc) · 4.93 KB
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/*
* Copyright (c) 2003-2005, Henri Yandell
* All rights reserved.
*
* 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 Simple-JNDI 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.
*/
package org.osjava.sj;
import org.osjava.sj.jndi.DelegatingContext;
import org.osjava.sj.jndi.AbstractContext;
import java.io.File;
import java.io.IOException;
import java.util.Hashtable;
import javax.naming.NamingException;
import javax.naming.InitialContext;
import javax.naming.Context;
import org.osjava.sj.loader.JndiLoader;
import org.osjava.sj.loader.util.Utils;
// job is to hide the JndiLoader, apart from a jndi.properties entry
// can also handle switching . to / so that the delimiter may be settable
public class SimpleContext extends DelegatingContext {
// root
public static final String SIMPLE_ROOT = "org.osjava.sj.root";
public static final String SIMPLE_DELEGATE = "org.osjava.sj.factory";
// option for top level space; ie) java:comp
public static final String SIMPLE_SPACE = "org.osjava.sj.space";
/*
*
* root
* org.osjava.jndi.root
* separator, or just put them in as contexts?
* org.osjava.jndi.delimiter
* option for top level space; ie) java:comp
* org.osjava.jndi.space
* share the same InitialContext
* org.osjava.jndi.shared
*/
public SimpleContext(Hashtable env) throws NamingException {
super(createContext(env));
JndiLoader loader = new JndiLoader(env);
String root = (String) env.get(SIMPLE_ROOT);
if(root == null) {
throw new IllegalStateException("Property "+SIMPLE_ROOT+" is mandatory. ");
}
if(root.startsWith("file://")) {
root = root.substring("file://".length());
}
if(!AbstractContext.isSharedAndLoaded()) {
Context ctxt = this;
String space = (String) env.get(SIMPLE_SPACE);
if(space != null) {
// make contexts for space...
String[] array = Utils.split(space, (String) env.get(JndiLoader.SIMPLE_DELIMITER) );
for(int i=0; i<array.length; i++) {
ctxt = ctxt.createSubcontext(array[i]);
}
}
try {
loader.loadDirectory( new File(root), ctxt );
} catch(IOException ioe) {
throw new NamingException("Unable to load data from directory: "+root+" due to error: "+ioe.getMessage());
}
}
}
private static InitialContext createContext(Hashtable env) throws NamingException {
copyFromSystemProperties(env, JndiLoader.SIMPLE_DELIMITER);
copyFromSystemProperties(env, SIMPLE_ROOT);
copyFromSystemProperties(env, SIMPLE_SPACE);
copyFromSystemProperties(env, JndiLoader.SIMPLE_SHARED);
copyFromSystemProperties(env, SIMPLE_DELEGATE);
env.put("jndi.syntax.direction", "left_to_right");
if(!env.containsKey(JndiLoader.SIMPLE_DELIMITER)) {
env.put(JndiLoader.SIMPLE_DELIMITER, ".");
}
env.put("jndi.syntax.separator", env.get(JndiLoader.SIMPLE_DELIMITER));
if(!env.containsKey(SIMPLE_DELEGATE)) {
env.put(SIMPLE_DELEGATE, "org.osjava.sj.memory.MemoryContextFactory");
}
env.put("java.naming.factory.initial", env.get(SIMPLE_DELEGATE) );
return new InitialContext(env);
}
private static void copyFromSystemProperties(Hashtable env, String key) {
if(System.getProperty(key) != null) {
env.put(key, System.getProperty(key));
}
}
}