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OpenCADC REST server library
/*
************************************************************************
******************* CANADIAN ASTRONOMY DATA CENTRE *******************
************** CENTRE CANADIEN DE DONNÉES ASTRONOMIQUES **************
*
* (c) 2021. (c) 2021.
* Government of Canada Gouvernement du Canada
* National Research Council Conseil national de recherches
* Ottawa, Canada, K1A 0R6 Ottawa, Canada, K1A 0R6
* All rights reserved Tous droits réservés
*
* NRC disclaims any warranties, Le CNRC dénie toute garantie
* expressed, implied, or énoncée, implicite ou légale,
* statutory, of any kind with de quelque nature que ce
* respect to the software, soit, concernant le logiciel,
* including without limitation y compris sans restriction
* any warranty of merchantability toute garantie de valeur
* or fitness for a particular marchande ou de pertinence
* purpose. NRC shall not be pour un usage particulier.
* liable in any event for any Le CNRC ne pourra en aucun cas
* damages, whether direct or être tenu responsable de tout
* indirect, special or general, dommage, direct ou indirect,
* consequential or incidental, particulier ou général,
* arising from the use of the accessoire ou fortuit, résultant
* software. Neither the name de l'utilisation du logiciel. Ni
* of the National Research le nom du Conseil National de
* Council of Canada nor the Recherches du Canada ni les noms
* names of its contributors may de ses participants ne peuvent
* be used to endorse or promote être utilisés pour approuver ou
* products derived from this promouvoir les produits dérivés
* software without specific prior de ce logiciel sans autorisation
* written permission. préalable et particulière
* par écrit.
*
* This file is part of the Ce fichier fait partie du projet
* OpenCADC project. OpenCADC.
*
* OpenCADC is free software: OpenCADC est un logiciel libre ;
* you can redistribute it and/or vous pouvez le redistribuer ou le
* modify it under the terms of modifier suivant les termes de
* the GNU Affero General Public la “GNU Affero General Public
* License as published by the License” telle que publiée
* Free Software Foundation, par la Free Software Foundation
* either version 3 of the : soit la version 3 de cette
* License, or (at your option) licence, soit (à votre gré)
* any later version. toute version ultérieure.
*
* OpenCADC is distributed in the OpenCADC est distribué
* hope that it will be useful, dans l’espoir qu’il vous
* but WITHOUT ANY WARRANTY; sera utile, mais SANS AUCUNE
* without even the implied GARANTIE : sans même la garantie
* warranty of MERCHANTABILITY implicite de COMMERCIALISABILITÉ
* or FITNESS FOR A PARTICULAR ni d’ADÉQUATION À UN OBJECTIF
* PURPOSE. See the GNU Affero PARTICULIER. Consultez la Licence
* General Public License for Générale Publique GNU Affero
* more details. pour plus de détails.
*
* You should have received Vous devriez avoir reçu une
* a copy of the GNU Affero copie de la Licence Générale
* General Public License along Publique GNU Affero avec
* with OpenCADC. If not, see OpenCADC ; si ce n’est
* . pas le cas, consultez :
* .
*
************************************************************************
*/
package ca.nrc.cadc.rest;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.Map;
import javax.servlet.ServletContext;
import org.apache.log4j.Logger;
/**
* Special action that is called once when the application is loaded.
*
* @author pdowler
*/
public abstract class InitAction {
private static final Logger log = Logger.getLogger(InitAction.class);
/**
* The application name is a string unique to the application. It
* can be used to prefix log messages, JNDI key names, etc. that are common
* to components of the application.
*/
protected String appName;
/**
* The componentID is a string unique to a single instance of RestServlet. It
* can be used to prefix log messages, JNDI key names, System properties, etc.
* It is not a path like one might get from SyncInput.getContextPath() and should
* never be parsed or interpreted.
*/
protected String componentID;
/**
* Map of init params from the web deployment descriptor. This map does not include
* the init params that configure the http method action classes.
*/
protected Map initParams;
private ServletContext servletContext;
protected InitAction() {
}
// package for RestServlet use
void setServletContext(ServletContext servletContext) {
this.servletContext = servletContext;
}
public void setAppName(String appName) {
this.appName = appName;
}
public void setComponentID(String componentID) {
this.componentID = componentID;
}
public void setInitParams(Map initParams) {
this.initParams = initParams;
}
/**
* Get URL to a resource in the application context.
*
* @param resource named resource inside application
* @return URL to the resource
* @throws MalformedURLException if resource name cannot be part of URL
*/
protected URL getResource(String resource) throws MalformedURLException {
return servletContext.getResource(resource);
}
/**
* Initialisation implemented by subclass. This method gets called once during startup/deployment.
*/
public abstract void doInit();
}
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