Package com.google.refine.browsing

Examples of com.google.refine.browsing.Engine

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        protected Runnable getRunnable() {
            return this;
        }
       
        protected void populateEntries() throws Exception {
            Engine engine = new Engine(_project);
            engine.initializeFromJSON(_engineConfig);
           
            Column column = _project.columnModel.getColumnByName(_columnName);
            if (column == null) {
                throw new Exception("No column named " + _columnName);
            }
           
            _entries = new ArrayList<ReconEntry>(_project.rows.size());
            _cellIndex = column.getCellIndex();
           
            FilteredRows filteredRows = engine.getAllFilteredRows();
            filteredRows.accept(_project, new RowVisitor() {
                @Override
                public void start(Project project) {
                    // nothing to do
                }
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        return (_flagged ? "Flag rows" : "Unflag rows");
    }

   @Override
protected HistoryEntry createHistoryEntry(Project project, long historyEntryID) throws Exception {
        Engine engine = createEngine(project);
       
        List<Change> changes = new ArrayList<Change>(project.rows.size());
       
        FilteredRows filteredRows = engine.getAllFilteredRows();
        filteredRows.accept(project, createRowVisitor(project, changes));
       
        return new HistoryEntry(
            historyEntryID,
            project,
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        return "Reorder rows";
    }

    @Override
    protected HistoryEntry createHistoryEntry(Project project, long historyEntryID) throws Exception {
        Engine engine = new Engine(project);
        engine.setMode(_mode);

        List<Integer> rowIndices = new ArrayList<Integer>();
        if (_mode == Mode.RowBased) {
            RowVisitor visitor = new IndexingVisitor(rowIndices);
            if (_sorting != null) {
                SortingRowVisitor srv = new SortingRowVisitor(visitor);

                srv.initializeFromJSON(project, _sorting);
                if (srv.hasCriteria()) {
                    visitor = srv;
                }
            }

            engine.getAllRows().accept(project, visitor);
        } else {
            RecordVisitor visitor = new IndexingVisitor(rowIndices);
            if (_sorting != null) {
                SortingRecordVisitor srv = new SortingRecordVisitor(visitor);

                srv.initializeFromJSON(project, _sorting);
                if (srv.hasCriteria()) {
                    visitor = srv;
                }
            }

            engine.getAllRecords().accept(project, visitor);
        }

        return new HistoryEntry(
                historyEntryID,
                project,
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            throws ServletException, IOException {

        ProjectManager.singleton.setBusy(true);
        try {
            Project project = getProject(request);
            Engine engine = getEngine(request, project);
            Properties params = getRequestParameters(request);
           
            String format = params.getProperty("format");
            Exporter exporter = ExporterRegistry.getExporter(format);
            if (exporter == null) {
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            " rows with " + _expression;
    }
   
    @Override
    protected HistoryEntry createHistoryEntry(Project project, long historyEntryID) throws Exception {
        Engine engine = createEngine(project);
       
        Column column = project.columnModel.getColumnByName(_baseColumnName);
        if (column == null) {
            throw new Exception("No column named " + _baseColumnName);
        }
        if (project.columnModel.getColumnByName(_newColumnName) != null) {
            throw new Exception("Another column already named " + _newColumnName);
        }
       
        List<CellAtRow> cellsAtRows = new ArrayList<CellAtRow>(project.rows.size());
       
        FilteredRows filteredRows = engine.getAllFilteredRows();
        filteredRows.accept(project, createRowVisitor(project, cellsAtRows));
       
        String description = createDescription(column, cellsAtRows);
       
        Change change = new ColumnAdditionChange(_newColumnName, _columnInsertIndex, cellsAtRows);
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        writer.endObject();
    }

    @Override
    protected HistoryEntry createHistoryEntry(final Project project, final long historyEntryID) throws Exception {
        Engine engine = createEngine(project);
       
        final Column fromColumn = project.columnModel.getColumnByName(_fromColumnName);
       
        final List<Column> toColumns = new ArrayList<Column>(_toColumnNames.length);
        for (String c : _toColumnNames) {
            Column toColumn = project.columnModel.getColumnByName(c);
            if (toColumn != null) {
                toColumns.add(toColumn);
            }
        }
       
        final Set<Recon.Judgment> judgments = new HashSet<Recon.Judgment>(_judgments.length);
        for (String j : _judgments) {
            judgments.add(Recon.stringToJudgment(j));
        }
       
        final List<CellChange> cellChanges = new ArrayList<CellChange>(project.rows.size());
       
        if (fromColumn != null && toColumns.size() > 0) {
            final Map<Object, Recon> cellValueToRecon = new HashMap<Object, Recon>();
           
            FilteredRows filteredRows = engine.getAllFilteredRows();
            try {
                filteredRows.accept(project, new RowVisitor() {
                    @Override
                    public void start(Project project) {
                        // nothing to do
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            ("separator".equals(_mode) ? " by separator" : " by field lengths");
    }

    @Override
    protected HistoryEntry createHistoryEntry(Project project, long historyEntryID) throws Exception {
        Engine engine = createEngine(project);
       
        Column column = project.columnModel.getColumnByName(_columnName);
        if (column == null) {
            throw new Exception("No column named " + _columnName);
        }
       
        List<String> columnNames = new ArrayList<String>();
        List<Integer> rowIndices = new ArrayList<Integer>(project.rows.size());
        List<List<Serializable>> tuples = new ArrayList<List<Serializable>>(project.rows.size());
       
        FilteredRows filteredRows = engine.getAllFilteredRows();
        RowVisitor rowVisitor;
        if ("lengths".equals(_mode)) {
            rowVisitor = new ColumnSplitRowVisitor(column.getCellIndex(), columnNames, rowIndices, tuples) {
                @Override
                protected java.util.List<Serializable> split(String s) {
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        }

        ProjectManager.singleton.setBusy(true);
        try {
            Project project = getProject(request);
            Engine engine = getEngine(request, project);
            Properties params = ExportRowsCommand.getRequestParameters(request);
            String name = params.getProperty("name");
           
            response.setCharacterEncoding("UTF-8");
            response.setHeader("Content-Type", "application/json");
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    @Override
    public void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        try {
            Project project = getProject(request);
            Engine engine = getEngine(request, project);

            response.setCharacterEncoding("UTF-8");
            response.setHeader("Content-Type", "application/json");

            String jsonString = request.getParameter("schema");
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  public void init()throws Exception{
    expected = buildExpectedModel();
    ApplicationContext ctxt = new ApplicationContext();
    schema = getRdfSchema();
    project = buildTheSampleProject(schema);
    engine = new Engine(project);
    exporter = new RdfExporter(ctxt,RDFFormat.RDFXML);
    ControlFunctionRegistry.registerFunction("urlify", new Urlify());
    ExpressionUtils.registerBinder(new RdfBinder(ctxt));
         
    model = exporter.buildModel(project, engine, schema);
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Related Classes of com.google.refine.browsing.Engine

  • com.google.refine.browsing.facets.Facet
  • com.google.refine.browsing.facets.ListFacet
  • com.google.refine.browsing.facets.RangeFacet
  • com.google.refine.browsing.facets.ScatterplotFacet
  • com.google.refine.browsing.facets.TextSearchFacet
  • com.google.refine.browsing.facets.TimeRangeFacet
  • com.google.refine.browsing.util.ConjunctiveFilteredRecords
  • com.google.refine.browsing.util.ConjunctiveFilteredRows
  • com.google.refine.browsing.util.FilteredRecordsAsFilteredRows
  • com.google.refine.commands.browsing.ComputeClustersCommand
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