com.cognifide.cq.cqsm.core.servlets.ScriptRemoveServlet.java Source code

Introduction

Here is the source code for com.cognifide.cq.cqsm.core.servlets.ScriptRemoveServlet.java

Source

/*-
 * ========================LICENSE_START=================================
 * AEM Permission Management
 * %%
 * Copyright (C) 2013 Cognifide Limited
 * %%
 * 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.
 * =========================LICENSE_END==================================
 */
package com.cognifide.cq.cqsm.core.servlets;

import com.cognifide.cq.cqsm.api.scripts.Script;
import com.cognifide.cq.cqsm.api.scripts.ScriptFinder;
import com.cognifide.cq.cqsm.api.scripts.ScriptStorage;
import com.cognifide.cq.cqsm.core.Cqsm;
import com.cognifide.cq.cqsm.core.utils.ServletUtils;

import org.apache.commons.lang.StringUtils;
import org.apache.felix.scr.annotations.Properties;
import org.apache.felix.scr.annotations.Property;
import org.apache.felix.scr.annotations.Reference;
import org.apache.felix.scr.annotations.Service;
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.resource.ResourceResolver;
import org.apache.sling.api.servlets.SlingAllMethodsServlet;
import org.osgi.framework.Constants;

import java.io.IOException;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;

import javax.jcr.RepositoryException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletResponse;

@SlingServlet(paths = { "/bin/cqsm/remove" }, methods = { "POST" })
@Service
@Properties({ @Property(name = Constants.SERVICE_DESCRIPTION, value = "CQSM Remove Scripts Servlet"),
        @Property(name = Constants.SERVICE_VENDOR, value = Cqsm.VENDOR_NAME) })
public class ScriptRemoveServlet extends SlingAllMethodsServlet {

    @Reference
    private ScriptStorage scriptStorage;

    @Reference
    private ScriptFinder scriptFinder;

    @Override
    protected void doPost(SlingHttpServletRequest request, SlingHttpServletResponse response)
            throws ServletException, IOException {
        final String all = request.getParameter("confirmation");
        final String fileName = request.getParameter("file");
        ResourceResolver resolver = request.getResourceResolver();
        if (fileName != null) {
            removeSingleFile(resolver, response, fileName);
        } else if (all != null) {
            removeAllFiles(resolver, response, all);
        } else {
            response.setStatus(HttpServletResponse.SC_BAD_REQUEST);
            ServletUtils.writeMessage(response, "error", "Invalid arguments specified");
        }
    }

    private void removeAllFiles(ResourceResolver resolver, SlingHttpServletResponse response, String all)
            throws IOException {
        if (!Boolean.parseBoolean(all)) {
            ServletUtils.writeMessage(response, "error", "Remove all scripts is not confirmed");
        } else {
            final List<String> paths = new LinkedList<>();
            final List<Script> scripts = scriptFinder.findAll(resolver);

            try {
                for (Script script : scripts) {
                    final String path = script.getPath();

                    scriptStorage.remove(script, resolver);
                    paths.add(path);
                }

                final Map<String, Object> context = new HashMap<>();
                context.put("paths", paths);

                ServletUtils.writeMessage(response, "success",
                        String.format("Scripts removed successfully, total: %d", scripts.size()), context);
            } catch (RepositoryException e) {
                response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
                ServletUtils.writeJson(response,
                        "Cannot save remove all scripts. Repository error: " + e.getMessage());
            }
        }
    }

    private void removeSingleFile(ResourceResolver resolver, SlingHttpServletResponse response, String fileName)
            throws IOException {
        if (StringUtils.isEmpty(fileName)) {
            ServletUtils.writeMessage(response, "error", "File name to be removed cannot be empty");
        } else {
            final Script script = scriptFinder.find(fileName, resolver);
            if (script == null) {
                ServletUtils.writeMessage(response, "error", String.format("Script not found: '%s'", fileName));
            } else {
                final String scriptPath = script.getPath();

                try {
                    scriptStorage.remove(script, resolver);

                    ServletUtils.writeMessage(response, "success",
                            String.format("Script removed successfully: %s", scriptPath));
                } catch (RepositoryException e) {
                    response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
                    ServletUtils.writeJson(response, String.format(
                            "Cannot remove script: '%s'." + " Repository error: %s", scriptPath, e.getMessage()));
                }
            }
        }
    }
}