nextapp.echo.webcontainer.SynchronizationContext Maven / Gradle / Ivy
/*
* This file is part of the Echo Web Application Framework (hereinafter "Echo").
* Copyright (C) 2002-2009 NextApp, Inc.
*
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*/
package nextapp.echo.webcontainer;
import org.w3c.dom.Document;
import nextapp.echo.app.serial.PropertyPeerFactory;
import nextapp.echo.app.serial.SerialContext;
import nextapp.echo.app.util.Context;
/**
* Basic Context implementation used by InputProcessor and OutputProcessor to parse
* inbound and produce outbound XML synchronization messages.
*
* Provides the following properties:
* Document (provided by constructor)
* Connection (provided by constructor)
* SerialContext
* PropertyPeerFactory
* UserInstance
*
*/
public class SynchronizationContext
implements Context {
private ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
private Connection conn;
private Document document;
private PropertySerialPeerFactory propertyPeerFactory;
/**
* SerialContext implementation.
*/
private SerialContext serialContext = new SerialContext() {
/**
* @see nextapp.echo.app.serial.SerialContext#getClassLoader()
*/
public ClassLoader getClassLoader() {
return classLoader;
}
/**
* @see nextapp.echo.app.serial.SerialContext#getDocument()
*/
public Document getDocument() {
return document;
}
/**
* @see nextapp.echo.app.serial.SerialContext#getFlags()
*/
public int getFlags() {
return FLAG_RENDER_SHORT_NAMES;
}
};
/**
* Creates a new SynchronizationContext.
*
* @param conn the Connection
* @param document the inbound or outbound XML Document
*/
public SynchronizationContext(Connection conn, Document document) {
this.conn = conn;
this.document = document;
}
/**
* @see nextapp.echo.app.util.Context#get(java.lang.Class)
*/
public Object get(Class specificContextClass) {
if (specificContextClass == SerialContext.class) {
return serialContext;
} else if (specificContextClass == Connection.class) {
return conn;
} else if (specificContextClass == PropertyPeerFactory.class) {
if (propertyPeerFactory == null) {
propertyPeerFactory = PropertySerialPeerFactory.forClassLoader(classLoader);
}
return propertyPeerFactory;
} else if (specificContextClass == UserInstance.class) {
return conn.getUserInstance();
} else {
return null;
}
}
}