439474caeb
(doesn't work but since it's a substantial chunk of stuff, I want to get it in sooner rather than later) git-svn-id: http://google-refine.googlecode.com/svn/trunk@516 7d457c2a-affb-35e4-300a-418c747d4874
205 lines
9.9 KiB
Java
205 lines
9.9 KiB
Java
package com.metaweb.gridworks;
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import java.io.IOException;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.Timer;
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import java.util.TimerTask;
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import javax.servlet.ServletException;
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import javax.servlet.http.HttpServlet;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import com.metaweb.gridworks.commands.Command;
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import com.metaweb.gridworks.commands.auth.CheckAuthorizationCommand;
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import com.metaweb.gridworks.commands.auth.DeAuthorizeCommand;
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import com.metaweb.gridworks.commands.auth.AuthorizeCommand;
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import com.metaweb.gridworks.commands.edit.AddColumnCommand;
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import com.metaweb.gridworks.commands.edit.AnnotateOneRowCommand;
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import com.metaweb.gridworks.commands.edit.AnnotateRowsCommand;
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import com.metaweb.gridworks.commands.edit.ApplyOperationsCommand;
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import com.metaweb.gridworks.commands.edit.CreateProjectCommand;
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import com.metaweb.gridworks.commands.edit.DeleteProjectCommand;
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import com.metaweb.gridworks.commands.edit.EditOneCellCommand;
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import com.metaweb.gridworks.commands.edit.ExportProjectCommand;
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import com.metaweb.gridworks.commands.edit.ExtendDataCommand;
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import com.metaweb.gridworks.commands.edit.ImportProjectCommand;
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import com.metaweb.gridworks.commands.edit.JoinMultiValueCellsCommand;
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import com.metaweb.gridworks.commands.edit.MassEditCommand;
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import com.metaweb.gridworks.commands.edit.RemoveColumnCommand;
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import com.metaweb.gridworks.commands.edit.RemoveRowsCommand;
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import com.metaweb.gridworks.commands.edit.RenameColumnCommand;
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import com.metaweb.gridworks.commands.edit.SaveProtographCommand;
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import com.metaweb.gridworks.commands.edit.SplitColumnCommand;
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import com.metaweb.gridworks.commands.edit.SplitMultiValueCellsCommand;
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import com.metaweb.gridworks.commands.edit.TextTransformCommand;
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import com.metaweb.gridworks.commands.edit.UndoRedoCommand;
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import com.metaweb.gridworks.commands.info.ComputeClustersCommand;
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import com.metaweb.gridworks.commands.info.ComputeFacetsCommand;
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import com.metaweb.gridworks.commands.info.ExportRowsCommand;
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import com.metaweb.gridworks.commands.info.GetAllProjectMetadataCommand;
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import com.metaweb.gridworks.commands.info.GetColumnsInfoCommand;
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import com.metaweb.gridworks.commands.info.GetExpressionHistoryCommand;
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import com.metaweb.gridworks.commands.info.GetHistoryCommand;
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import com.metaweb.gridworks.commands.info.GetModelsCommand;
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import com.metaweb.gridworks.commands.info.GetOperationsCommand;
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import com.metaweb.gridworks.commands.info.GetProcessesCommand;
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import com.metaweb.gridworks.commands.info.GetProjectMetadataCommand;
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import com.metaweb.gridworks.commands.info.GetRowsCommand;
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import com.metaweb.gridworks.commands.info.GetScatterplotCommand;
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import com.metaweb.gridworks.commands.recon.ReconDiscardJudgmentsCommand;
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import com.metaweb.gridworks.commands.recon.ReconJudgeOneCellCommand;
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import com.metaweb.gridworks.commands.recon.ReconJudgeSimilarCellsCommand;
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import com.metaweb.gridworks.commands.recon.ReconMarkNewTopicsCommand;
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import com.metaweb.gridworks.commands.recon.ReconMatchBestCandidatesCommand;
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import com.metaweb.gridworks.commands.recon.ReconMatchSpecificTopicCommand;
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import com.metaweb.gridworks.commands.recon.ReconcileCommand;
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import com.metaweb.gridworks.commands.util.CancelProcessesCommand;
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import com.metaweb.gridworks.commands.util.GetExpressionLanguageInfoCommand;
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import com.metaweb.gridworks.commands.util.GuessTypesOfColumnCommand;
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import com.metaweb.gridworks.commands.util.LogExpressionCommand;
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import com.metaweb.gridworks.commands.util.PreviewExpressionCommand;
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import com.metaweb.gridworks.commands.util.PreviewExtendDataCommand;
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import com.metaweb.gridworks.commands.util.PreviewProtographCommand;
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public class GridworksServlet extends HttpServlet {
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private static final long serialVersionUID = 2386057901503517403L;
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static final protected Map<String, Command> _commands = new HashMap<String, Command>();
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// timer for periodically saving projects
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static protected Timer _timer;
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static {
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_commands.put("create-project-from-upload", new CreateProjectCommand());
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_commands.put("import-project", new ImportProjectCommand());
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_commands.put("export-project", new ExportProjectCommand());
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_commands.put("export-rows", new ExportRowsCommand());
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_commands.put("get-project-metadata", new GetProjectMetadataCommand());
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_commands.put("get-all-project-metadata", new GetAllProjectMetadataCommand());
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_commands.put("delete-project", new DeleteProjectCommand());
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_commands.put("get-models", new GetModelsCommand());
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_commands.put("get-rows", new GetRowsCommand());
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_commands.put("get-processes", new GetProcessesCommand());
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_commands.put("get-history", new GetHistoryCommand());
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_commands.put("get-operations", new GetOperationsCommand());
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_commands.put("get-columns-info", new GetColumnsInfoCommand());
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_commands.put("get-scatterplot", new GetScatterplotCommand());
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_commands.put("undo-redo", new UndoRedoCommand());
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_commands.put("apply-operations", new ApplyOperationsCommand());
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_commands.put("cancel-processes", new CancelProcessesCommand());
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_commands.put("compute-facets", new ComputeFacetsCommand());
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_commands.put("compute-clusters", new ComputeClustersCommand());
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_commands.put("edit-one-cell", new EditOneCellCommand());
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_commands.put("text-transform", new TextTransformCommand());
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_commands.put("mass-edit", new MassEditCommand());
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_commands.put("join-multi-value-cells", new JoinMultiValueCellsCommand());
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_commands.put("split-multi-value-cells", new SplitMultiValueCellsCommand());
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_commands.put("add-column", new AddColumnCommand());
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_commands.put("remove-column", new RemoveColumnCommand());
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_commands.put("rename-column", new RenameColumnCommand());
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_commands.put("split-column", new SplitColumnCommand());
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_commands.put("extend-data", new ExtendDataCommand());
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_commands.put("reconcile", new ReconcileCommand());
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_commands.put("recon-match-best-candidates", new ReconMatchBestCandidatesCommand());
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_commands.put("recon-mark-new-topics", new ReconMarkNewTopicsCommand());
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_commands.put("recon-discard-judgments", new ReconDiscardJudgmentsCommand());
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_commands.put("recon-match-specific-topic-to-cells", new ReconMatchSpecificTopicCommand());
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_commands.put("recon-judge-one-cell", new ReconJudgeOneCellCommand());
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_commands.put("recon-judge-similar-cells", new ReconJudgeSimilarCellsCommand());
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_commands.put("annotate-one-row", new AnnotateOneRowCommand());
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_commands.put("annotate-rows", new AnnotateRowsCommand());
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_commands.put("remove-rows", new RemoveRowsCommand());
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_commands.put("save-protograph", new SaveProtographCommand());
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_commands.put("get-expression-language-info", new GetExpressionLanguageInfoCommand());
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_commands.put("get-expression-history", new GetExpressionHistoryCommand());
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_commands.put("log-expression", new LogExpressionCommand());
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_commands.put("preview-expression", new PreviewExpressionCommand());
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_commands.put("preview-extend-data", new PreviewExtendDataCommand());
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_commands.put("preview-protograph", new PreviewProtographCommand());
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_commands.put("guess-types-of-column", new GuessTypesOfColumnCommand());
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_commands.put("check-authorization", new CheckAuthorizationCommand());
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_commands.put("authorize", new AuthorizeCommand());
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_commands.put("deauthorize", new DeAuthorizeCommand());
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}
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@Override
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public void init() throws ServletException {
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super.init();
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ProjectManager.initialize();
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if (_timer == null) {
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_timer = new Timer();
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}
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long period = 1000 * 60 * 5; // 5 minutes
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_timer.scheduleAtFixedRate(new TimerTask() {
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@Override
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public void run() {
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ProjectManager.singleton.save(false); // quick, potentially incomplete save
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}
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}, period, period);
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}
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@Override
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public void destroy() {
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// cancel automatic periodic saving and force a complete save.
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if (_timer != null) {
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_timer.cancel();
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_timer = null;
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}
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if (ProjectManager.singleton != null) {
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ProjectManager.singleton.save(true); // complete save
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ProjectManager.singleton = null;
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}
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super.destroy();
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}
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protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
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Command command = _commands.get(getCommandName(request));
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if (command != null) {
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command.doPost(request, response);
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} else {
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response.sendError(404);
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}
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}
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protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
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Command command = _commands.get(getCommandName(request));
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if (command != null) {
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command.doGet(request, response);
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} else {
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response.sendError(404);
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}
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}
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protected String getCommandName(HttpServletRequest request) {
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/*
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* Remove extraneous path segments that might be there for other purposes,
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* e.g., for /export-rows/filename.ext, export-rows is the command while
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* filename.ext is only for the browser to prompt a convenient filename.
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*/
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String commandName = request.getPathInfo().substring(1);
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int slash = commandName.indexOf('/');
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return slash > 0 ? commandName.substring(0, slash) : commandName;
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}
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}
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