/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.oodt.cas.curation.servlet;
//OODT imports
import org.apache.oodt.cas.curation.policymgr.CurationPolicyManager;
import org.apache.oodt.cas.metadata.util.PathUtils;
//JDK imports
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
// Displays the contents of the staging area as an HTML unordered list (<ul></ul>):
// This servlet is meant to be invoked via an AJAX call, the generated HTML output
// will be dynamically inserted into a DOM element on the requesting page.
//
public class ShowExistingDatasetsByPolicyServlet extends
SSOConfiguredCuratorWebService {
private String stagingAreaPath;
private String policyDirPath;
private static final long serialVersionUID = 4844652723865688280L;
public ShowExistingDatasetsByPolicyServlet() {
}
public void init(ServletConfig conf) throws ServletException {
super.init(conf);
this.stagingAreaPath = PathUtils.replaceEnvVariables(getServletContext().getInitParameter(STAGING_AREA_PATH));
this.policyDirPath = PathUtils.replaceEnvVariables(getServletContext().getInitParameter(POLICY_UPLOAD_PATH));
}
public void doPost(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException {
HttpSession session = req.getSession();
session.setAttribute("errorMsg", "You must use GET to access this page");
RequestDispatcher dispatcher = getServletContext().getRequestDispatcher(
"/error.jsp");
dispatcher.forward(req, res);
}
// Handle HTTP GET requests by forwarding to a common processor
public void doGet(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException {
this.configureSingleSignOn(req, res);
// Redirect if no valid user logged in
if (!this.sso.isLoggedIn()) {
res.sendRedirect("/login.jsp?from=" + req.getRequestURL());
return;
}
String policy = req.getParameter("policy");
PrintWriter out = res.getWriter();
// we return with blank page with error
if (policy == null) {
out.println("");
return;
}
CurationPolicyManager pm = new CurationPolicyManager(this.policyDirPath, this.stagingAreaPath);
out.println(pm.getDatasetsByPolicyAsJSON(policy));
return;
}
}