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Core ACS AEM Commons OSGi Bundle. Includes commons utilities.

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/*
 * #%L
 * ACS AEM Commons Bundle
 * %%
 * Copyright (C) 2013 Adobe
 * %%
 * 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.
 * #L%
 */
package com.adobe.acs.commons.redirectmaps.impl;

import java.io.IOException;
import java.nio.charset.StandardCharsets;

import javax.servlet.ServletException;

import org.apache.felix.scr.annotations.Reference;
import org.apache.felix.scr.annotations.sling.SlingServlet;
import org.apache.sling.api.SlingHttpServletRequest;
import org.apache.sling.api.SlingHttpServletResponse;
import org.apache.sling.api.servlets.SlingSafeMethodsServlet;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.adobe.acs.commons.redirectmaps.models.RedirectMapModel;
import com.adobe.acs.commons.util.RequireAem;
import acscommons.com.google.common.net.MediaType;

/**
 * Servlet for generating an Apache RedirectMap text file from an uploaded file
 * and a list vanity properties in cq:Page and dam:Asset nodes.
 */
@SlingServlet(methods = { "GET" }, resourceTypes = { "acs-commons/components/utilities/redirectmappage" }, selectors = {
        "redirectmap" }, extensions = { "txt" }, metatype = false)
public class RedirectMapServlet extends SlingSafeMethodsServlet {

    private static final Logger log = LoggerFactory.getLogger(RedirectMapServlet.class);
    private static final long serialVersionUID = -3564475196678277711L;
    
    // Disable this feature on AEM as a Cloud Service
    @Reference(target="(distribution=classic)")
    transient RequireAem requireAem;

    @Override
    protected void doGet(SlingHttpServletRequest request, SlingHttpServletResponse response)
            throws ServletException, IOException {
        log.trace("doGet");

        log.debug("Requesting redirect maps from {}", request.getResource());
        RedirectMapModel redirectMap = request.getResource().adaptTo(RedirectMapModel.class);

        response.setContentType(MediaType.PLAIN_TEXT_UTF_8.toString());
        response.getOutputStream().write(redirectMap.getRedirectMap().getBytes(StandardCharsets.UTF_8));
    }
}