/*
 * Copyright 1999, 2000, 2001 ,2004 The Apache Software Foundation.
 * 
 * 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.
 */

package org.apache.tester;


import java.io.*;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;


/**
 * Positive test for <code>getResourcePaths()</code>, which will specify the
 * directory path indicated by the <strong>path</strong> request parameter.
 * For known paths, at least the known set of included resources must be
 * found in order to pass.
 *
 * @author Craig R. McClanahan
 * @version $Revision$ $Date$
 */

public class Resources06 extends HttpServlet {

    // Resource Lists (incomplete) for known directory paths
    String rootPaths[] =
    { "/ErrorPage06.html", "/ErrorPage06.jsp", "/Forward01.txt",
      "/Include01.txt", "/WEB-INF/", "/Xerces00.jsp", "/Xerces01.xml",
      "/Xerces02.jsp", "/golden/", "/includeme.txt", "/index.shtml",
      "/ssidir/" };

    String goldenPaths[] =
    { "/golden/Golden01.txt", "/golden/SSIConfig01.txt",
      "/golden/SSIConfig03.txt", "/golden/SSIFsize02.txt",
      "/golden/SSIInclude01.txt", "/golden/SSIInclude02.txt",
      "/golden/Session05.txt" };

    String webinfPaths[] =
    { "/WEB-INF/classes/", "/WEB-INF/lib/", "/WEB-INF/web.xml" };


    public void doGet(HttpServletRequest request, HttpServletResponse response)
        throws IOException, ServletException {

        // Prepare our output writer
        response.setContentType("text/plain");
        PrintWriter writer = response.getWriter();

        // Identify our configuration parameters
        StringBuffer sb = new StringBuffer();
        String path = request.getParameter("path");
        if (path == null)
            path = "/";
        String paths[] = null;
        if ("/".equals(path))
            paths = rootPaths;
        else if ("/golden".equals(path))
            paths = goldenPaths;
        else if ("/WEB-INF".equals(path))
            paths = webinfPaths;
        else {
            sb.append(" Unknown path '");
            sb.append(path);
            sb.append("'/");
        }
        int counts[] = null;
        if (paths != null)
            counts = new int[paths.length];

        // Request the set of resources in the specified path
        StaticLogger.write("Processing path '" + path + "'");
        String first = null;
        Set set = getServletContext().getResourcePaths(path);
        if (set == null) {
            sb.append(" No resources returned/");
            set = new HashSet();
        }

        // Count the occurrences of the resources we know about
        Iterator resources = set.iterator();
        while (resources.hasNext()) {
            String resource = (String) resources.next();
            if (first == null)
                first = resource;
            StaticLogger.write("Found resource '" + resource + "'");
            for (int i = 0; i < paths.length; i++) {
                if (paths[i].equals(resource)) {
                    counts[i]++;
                    break;
                }
            }
        }

        // Report on any missing or duplicated resources
        for (int i = 0; i < paths.length; i++) {
            if (counts[i] < 1) {
                sb.append(" Missing resource '");
                sb.append(paths[i]);
                sb.append("'/");
            } else if (counts[i] > 2) {
                sb.append(" Resource '");
                sb.append(paths[i]);
                sb.append("' occurred ");
                sb.append(counts[i]);
                sb.append(" times/");
            }
        }

        // Verify that the returned set is immutable
        try {
            String newElement = "NEW FOO";
            set.add(newElement);
            if (set.contains(newElement))
              sb.append(" Set allowed add()/");
        } catch (Throwable t) {
            ;
        }
        try {
            if (first != null) {
                set.remove(first);
                if (!set.contains(first))
                  sb.append(" Set allowed remove()/");
            }
        } catch (Throwable t) {
            ;
        }
        try {
            set.clear();
            if (set.size() == 0)
                sb.append(" Set allowed clear()/");
        } catch (Throwable t) {
            ;
        }


        // Report any failures we have encountered
        if (sb.length() > 0) {
            writer.print("Resources06 FAILED -");
            writer.println(sb.toString());
        } else {
            writer.println("Resources06 PASSED");
        }

        // Add wrapper messages as required
        while (true) {
            String message = StaticLogger.read();
            if (message == null)
                break;
            writer.println(message);
        }
        StaticLogger.reset();

    }

}