Refactoring and adding more functions.

git-svn-id: http://google-refine.googlecode.com/svn/trunk@14 7d457c2a-affb-35e4-300a-418c747d4874

src/main/java/com/metaweb/gridlock/browsing/ConjunctiveFilteredRows.java

@@ -21,14 +21,14 @@ public class ConjunctiveFilteredRows implements FilteredRows {
 			
 			boolean ok = true;
 			for (RowFilter rowFilter : _rowFilters) {
-				if (!rowFilter.filterRow(row)) {
+				if (!rowFilter.filterRow(project, i, row)) {
 					ok = false;
 					break;
 				}
 			}
 			
 			if (ok) {
-				visitor.visit(i, row);
+				visitor.visit(project, i, row);
 			}
 		}
 	}

src/main/java/com/metaweb/gridlock/browsing/DecoratedValue.java

@@ -1,4 +1,4 @@
-package com.metaweb.gridlock.browsing.accessors;
+package com.metaweb.gridlock.browsing;
 
 import java.util.Properties;
 

src/main/java/com/metaweb/gridlock/browsing/RowVisitor.java

@@ -1,8 +1,9 @@
 package com.metaweb.gridlock.browsing;
 
+import com.metaweb.gridlock.model.Project;
 import com.metaweb.gridlock.model.Row;
 
 public interface RowVisitor {
-	public boolean visit(int rowIndex, Row row);
+	public boolean visit(Project project, int rowIndex, Row row);
 
 }

src/main/java/com/metaweb/gridlock/browsing/accessors/CellAccessor.java

@@ -1,7 +0,0 @@
-package com.metaweb.gridlock.browsing.accessors;
-
-import com.metaweb.gridlock.model.Cell;
-
-public interface CellAccessor {
-	public Object[] get(Cell cell, boolean decorated);
-}

src/main/java/com/metaweb/gridlock/browsing/accessors/ReconFeatureCellAccessor.java

@@ -1,19 +0,0 @@
-package com.metaweb.gridlock.browsing.accessors;
-
-import com.metaweb.gridlock.model.Cell;
-
-public class ReconFeatureCellAccessor implements CellAccessor {
-	final protected String _name;
-	
-	public ReconFeatureCellAccessor(String name) {
-		_name = name;
-	}
-	
-	@Override
-	public Object[] get(Cell cell, boolean decorated) {
-		if (cell.recon != null) {
-			return new Object[] { cell.recon.features.get(_name) };
-		}
-		return null;
-	}
-}

src/main/java/com/metaweb/gridlock/browsing/accessors/ReconTypeAccessor.java

@@ -1,15 +0,0 @@
-package com.metaweb.gridlock.browsing.accessors;
-
-import com.metaweb.gridlock.model.Cell;
-import com.metaweb.gridlock.model.ReconCandidate;
-
-public class ReconTypeAccessor implements CellAccessor {
-	@Override
-	public Object[] get(Cell cell, boolean decorated) {
-		if (cell.recon != null && cell.recon.candidates.size() > 0) {
-			ReconCandidate c = cell.recon.candidates.get(0);
-			return c.typeIDs;
-		}
-		return null;
-	}
-}

src/main/java/com/metaweb/gridlock/browsing/accessors/ValueCellAccessor.java

@@ -1,13 +0,0 @@
-package com.metaweb.gridlock.browsing.accessors;
-
-import com.metaweb.gridlock.model.Cell;
-
-public class ValueCellAccessor implements CellAccessor {
-	@Override
-	public Object[] get(Cell cell, boolean decorated) {
-		if (cell.value != null) {
-			return new Object[] { cell.value };
-		}
-		return null;
-	}
-}

src/main/java/com/metaweb/gridlock/browsing/facets/CellAccessorNominalRowGrouper.java

@@ -1,53 +0,0 @@
-package com.metaweb.gridlock.browsing.facets;
-
-import java.util.HashMap;
-import java.util.Map;
-
-import com.metaweb.gridlock.browsing.RowVisitor;
-import com.metaweb.gridlock.browsing.accessors.CellAccessor;
-import com.metaweb.gridlock.browsing.accessors.DecoratedValue;
-import com.metaweb.gridlock.model.Cell;
-import com.metaweb.gridlock.model.Row;
-
-public class CellAccessorNominalRowGrouper implements RowVisitor {
-	final protected CellAccessor 	_accessor;
-	final protected int 			_cellIndex;
-	
-	final public Map<Object, NominalFacetChoice> choices = new HashMap<Object, NominalFacetChoice>();
-	
-	public CellAccessorNominalRowGrouper(CellAccessor accessor, int cellIndex) {
-		_accessor = accessor;
-		_cellIndex = cellIndex;
-	}
-	
-	@Override
-	public boolean visit(int rowIndex, Row row) {
-		if (_cellIndex < row.cells.size()) {
-			Cell cell = row.cells.get(_cellIndex);
-			if (cell != null) {
-				Object[] values = _accessor.get(cell, true);
-				if (values != null && values.length > 0) {
-					for (Object value : values) {
-						if (value != null) {
-							DecoratedValue dValue = 
-								value instanceof DecoratedValue ?
-									(DecoratedValue) value : 
-									new DecoratedValue(value, value.toString());
-							
-							Object v = dValue.value;
-							if (choices.containsKey(v)) {
-								choices.get(v).count++;
-							} else {
-								NominalFacetChoice choice = new NominalFacetChoice(dValue);
-								choice.count = 1;
-								
-								choices.put(v, choice);
-							}
-						}
-					}
-				}
-			}
-		}
-		return false;
-	}
-}

src/main/java/com/metaweb/gridlock/browsing/facets/ExpressionNominalRowGrouper.java

@@ -4,10 +4,11 @@ import java.util.HashMap;
 import java.util.Map;
 import java.util.Properties;
 
+import com.metaweb.gridlock.browsing.DecoratedValue;
 import com.metaweb.gridlock.browsing.RowVisitor;
-import com.metaweb.gridlock.browsing.accessors.DecoratedValue;
 import com.metaweb.gridlock.expr.Evaluable;
 import com.metaweb.gridlock.model.Cell;
+import com.metaweb.gridlock.model.Project;
 import com.metaweb.gridlock.model.Row;
 
 public class ExpressionNominalRowGrouper implements RowVisitor {
@@ -22,13 +23,14 @@ public class ExpressionNominalRowGrouper implements RowVisitor {
 	}
 	
 	@Override
-	public boolean visit(int rowIndex, Row row) {
+	public boolean visit(Project project, int rowIndex, Row row) {
 		if (_cellIndex < row.cells.size()) {
 			Cell cell = row.cells.get(_cellIndex);
 			if (cell != null) {
 				Properties bindings = new Properties();
 				
-				bindings.put("this", cell);
+				bindings.put("project", project);
+				bindings.put("cell", cell);
 				bindings.put("value", cell.value);
 				
 				Object value = _evaluable.evaluate(bindings);

src/main/java/com/metaweb/gridlock/browsing/facets/ListFacet.java

@@ -9,8 +9,8 @@ import org.json.JSONArray;
 import org.json.JSONException;
 import org.json.JSONObject;
 
+import com.metaweb.gridlock.browsing.DecoratedValue;
 import com.metaweb.gridlock.browsing.FilteredRows;
-import com.metaweb.gridlock.browsing.accessors.DecoratedValue;
 import com.metaweb.gridlock.browsing.filters.ExpressionEqualRowFilter;
 import com.metaweb.gridlock.browsing.filters.RowFilter;
 import com.metaweb.gridlock.expr.Evaluable;

src/main/java/com/metaweb/gridlock/browsing/facets/NominalFacetChoice.java

@@ -5,7 +5,7 @@ import java.util.Properties;
 import org.json.JSONException;
 import org.json.JSONObject;
 
-import com.metaweb.gridlock.browsing.accessors.DecoratedValue;
+import com.metaweb.gridlock.browsing.DecoratedValue;
 
 public class NominalFacetChoice {
 	final public DecoratedValue	decoratedValue;

src/main/java/com/metaweb/gridlock/browsing/filters/CellAccessorEqualRowFilter.java

@@ -1,37 +0,0 @@
-package com.metaweb.gridlock.browsing.filters;
-
-import com.metaweb.gridlock.browsing.accessors.CellAccessor;
-import com.metaweb.gridlock.model.Cell;
-import com.metaweb.gridlock.model.Row;
-
-public class CellAccessorEqualRowFilter implements RowFilter {
-	final protected CellAccessor 	_accessor;
-	final protected int 			_cellIndex;
-	final protected Object[] 		_matches;
-	
-	public CellAccessorEqualRowFilter(CellAccessor accessor, int cellIndex, Object[] matches) {
-		_accessor = accessor;
-		_cellIndex = cellIndex;
-		_matches = matches;
-	}
-
-	@Override
-	public boolean filterRow(Row row) {
-		if (_cellIndex < row.cells.size()) {
-			Cell cell = row.cells.get(_cellIndex);
-			if (cell != null) {
-				Object[] values = _accessor.get(cell, false);
-				if (values != null && values.length > 0) {
-					for (Object v : values) {
-						for (Object match : _matches) {
-							if (match.equals(v)) {
-								return true;
-							}
-						}
-					}
-				}
-			}
-		}
-		return false;
-	}
-}

src/main/java/com/metaweb/gridlock/browsing/filters/ExpressionEqualRowFilter.java

@@ -4,6 +4,7 @@ import java.util.Properties;
 
 import com.metaweb.gridlock.expr.Evaluable;
 import com.metaweb.gridlock.model.Cell;
+import com.metaweb.gridlock.model.Project;
 import com.metaweb.gridlock.model.Row;
 
 public class ExpressionEqualRowFilter implements RowFilter {
@@ -18,13 +19,13 @@ public class ExpressionEqualRowFilter implements RowFilter {
 	}
 
 	@Override
-	public boolean filterRow(Row row) {
+	public boolean filterRow(Project project, int rowIndex, Row row) {
 		if (_cellIndex < row.cells.size()) {
 			Cell cell = row.cells.get(_cellIndex);
 			if (cell != null) {
 				Properties bindings = new Properties();
 				
-				bindings.put("this", cell);
+				bindings.put("cell", cell);
 				bindings.put("value", cell.value);
 				
 				Object value = _evaluable.evaluate(bindings);

src/main/java/com/metaweb/gridlock/browsing/filters/RowFilter.java

@@ -1,7 +1,8 @@
 package com.metaweb.gridlock.browsing.filters;
 
+import com.metaweb.gridlock.model.Project;
 import com.metaweb.gridlock.model.Row;
 
 public interface RowFilter {
-	public boolean filterRow(Row row);
+	public boolean filterRow(Project project, int rowIndex, Row row);
 }

src/main/java/com/metaweb/gridlock/commands/DoTextTransformCommand.java

@@ -44,6 +44,8 @@ public class DoTextTransformCommand extends Command {
 			Evaluable eval = new Parser(expression).getExpression();
 			//System.out.println("--- " + eval.toString());
 			Properties bindings = new Properties();
+			bindings.put("project", project);
+			
 			List<CellChange> cellChanges = new ArrayList<CellChange>(project.rows.size());
 			
 			for (int r = 0; r < project.rows.size(); r++) {
@@ -54,7 +56,7 @@ public class DoTextTransformCommand extends Command {
 						continue;
 					}
 					
-					bindings.put("this", cell);
+					bindings.put("cell", cell);
 					bindings.put("value", cell.value);
 					
 					Cell newCell = new Cell();

src/main/java/com/metaweb/gridlock/commands/GetRowsCommand.java

@@ -87,7 +87,7 @@ public class GetRowsCommand extends Command {
 		}
 		
 		@Override
-		public boolean visit(int rowIndex, Row row) {
+		public boolean visit(Project project, int rowIndex, Row row) {
 			boolean r = false;
 			
 			if (total >= start && total < start + limit) {

src/main/java/com/metaweb/gridlock/expr/FieldAccessorExpr.java

@@ -15,7 +15,7 @@ public class FieldAccessorExpr implements Evaluable {
 	public Object evaluate(Properties bindings) {
 		Object o = _inner.evaluate(bindings);
 		if (o != null && o instanceof HasFields) {
-			return ((HasFields) o).getField(_fieldName);
+			return ((HasFields) o).getField(_fieldName, bindings);
 		}
 		return null;
 	}

src/main/java/com/metaweb/gridlock/expr/HasFields.java

@@ -1,5 +1,7 @@
 package com.metaweb.gridlock.expr;
 
+import java.util.Properties;
+
 public interface HasFields {
-	public Object getField(String name);
+	public Object getField(String name, Properties bindings);
 }

src/main/java/com/metaweb/gridlock/expr/Parser.java

@@ -8,7 +8,12 @@ import java.util.Map;
 import com.metaweb.gridlock.expr.Scanner.NumberToken;
 import com.metaweb.gridlock.expr.Scanner.Token;
 import com.metaweb.gridlock.expr.Scanner.TokenType;
+import com.metaweb.gridlock.expr.functions.And;
 import com.metaweb.gridlock.expr.functions.Get;
+import com.metaweb.gridlock.expr.functions.IsNotNull;
+import com.metaweb.gridlock.expr.functions.IsNull;
+import com.metaweb.gridlock.expr.functions.Not;
+import com.metaweb.gridlock.expr.functions.Or;
 import com.metaweb.gridlock.expr.functions.Replace;
 import com.metaweb.gridlock.expr.functions.Slice;
 import com.metaweb.gridlock.expr.functions.Split;
@@ -26,11 +31,18 @@ public class Parser {
 		functionTable.put("toUppercase", new ToUppercase());
 		functionTable.put("toLowercase", new ToLowercase());
 		functionTable.put("toTitlecase", new ToTitlecase());
+		
+		functionTable.put("get", new Get());
 		functionTable.put("slice", new Slice());
 		functionTable.put("substring", new Slice());
-		functionTable.put("get", new Get());
 		functionTable.put("replace", new Replace());
 		functionTable.put("split", new Split());
+		
+		functionTable.put("and", new And());
+		functionTable.put("or", new Or());
+		functionTable.put("not", new Not());
+		functionTable.put("isNull", new IsNull());
+		functionTable.put("isNotNull", new IsNotNull());
 	}
 	
 	public Parser(String s) throws Exception {

src/main/java/com/metaweb/gridlock/expr/functions/And.java

@@ -0,0 +1,18 @@
+package com.metaweb.gridlock.expr.functions;
+
+import java.util.Properties;
+
+import com.metaweb.gridlock.expr.Function;
+
+public class And implements Function {
+
+	@Override
+	public Object call(Properties bindings, Object[] args) {
+		for (Object o : args) {
+			if (!Not.objectToBoolean(o)) {
+				return false;
+			}
+		}
+		return true;
+	}
+}

src/main/java/com/metaweb/gridlock/expr/functions/IsNotNull.java

@@ -0,0 +1,14 @@
+package com.metaweb.gridlock.expr.functions;
+
+import java.util.Properties;
+
+import com.metaweb.gridlock.expr.Function;
+
+public class IsNotNull implements Function {
+
+	@Override
+	public Object call(Properties bindings, Object[] args) {
+		return args.length > 0 && args[0] != null;
+	}
+
+}

src/main/java/com/metaweb/gridlock/expr/functions/IsNull.java

@@ -0,0 +1,14 @@
+package com.metaweb.gridlock.expr.functions;
+
+import java.util.Properties;
+
+import com.metaweb.gridlock.expr.Function;
+
+public class IsNull implements Function {
+
+	@Override
+	public Object call(Properties bindings, Object[] args) {
+		return args.length == 0 || args[0] == null;
+	}
+
+}

src/main/java/com/metaweb/gridlock/expr/functions/Not.java

@@ -0,0 +1,21 @@
+package com.metaweb.gridlock.expr.functions;
+
+import java.util.Properties;
+
+import com.metaweb.gridlock.expr.Function;
+
+public class Not implements Function {
+
+	@Override
+	public Object call(Properties bindings, Object[] args) {
+		if (args.length > 0) {
+			return !objectToBoolean(args[0]);
+		}
+		return true;
+	}
+
+	public static boolean objectToBoolean(Object o) {
+		return o == null ? false : (
+			(o instanceof Boolean) ? ((Boolean) o).booleanValue() : Boolean.parseBoolean(o.toString()));
+	}
+}

src/main/java/com/metaweb/gridlock/expr/functions/Or.java

@@ -0,0 +1,18 @@
+package com.metaweb.gridlock.expr.functions;
+
+import java.util.Properties;
+
+import com.metaweb.gridlock.expr.Function;
+
+public class Or implements Function {
+
+	@Override
+	public Object call(Properties bindings, Object[] args) {
+		for (Object o : args) {
+			if (Not.objectToBoolean(o)) {
+				return true;
+			}
+		}
+		return false;
+	}
+}

src/main/java/com/metaweb/gridlock/model/Cell.java

@@ -26,9 +26,11 @@ public class Cell implements Serializable, HasFields {
 	}
 
 	@Override
-	public Object getField(String name) {
+	public Object getField(String name, Properties bindings) {
 		if ("value".equals(name)) {
 			return value;
+		} else if ("recon".equals(name)) {
+			return recon;
 		}
 		return null;
 	}

src/main/java/com/metaweb/gridlock/model/ColumnModel.java

@@ -4,6 +4,7 @@ import java.io.Serializable;
 import java.util.ArrayList;
 import java.util.LinkedList;
 import java.util.List;
+import java.util.Map;
 import java.util.Properties;
 
 import org.json.JSONException;
@@ -14,6 +15,8 @@ public class ColumnModel implements Serializable {
 	
 	public List<Column> columns = new LinkedList<Column>();
 	
+	transient protected Map<String, Column> _nameToColumn;
+	
 	public JSONObject getJSON(Properties options) throws JSONException {
 		JSONObject o = new JSONObject();
 		
@@ -25,4 +28,13 @@ public class ColumnModel implements Serializable {
 		
 		return o;
 	}
+	
+	public Column getColumnByName(String name) {
+		if (_nameToColumn == null) {
+			for (Column column : columns) {
+				_nameToColumn.put(column.headerLabel, column);
+			}
+		}
+		return _nameToColumn.get(name);
+	}
 }

src/main/java/com/metaweb/gridlock/model/Recon.java

@@ -10,7 +10,9 @@ import java.util.Properties;
 import org.json.JSONException;
 import org.json.JSONObject;
 
-public class Recon implements Serializable {
+import com.metaweb.gridlock.expr.HasFields;
+
+public class Recon implements Serializable, HasFields {
 	private static final long serialVersionUID = 8906257833709315762L;
 	
 	static public enum Judgment {
@@ -22,18 +24,45 @@ public class Recon implements Serializable {
 	public Map<String, Object> 	features = new HashMap<String, Object>();
 	public List<ReconCandidate> candidates = new LinkedList<ReconCandidate>();
 	public Judgment				judgment = Judgment.None;
+	public ReconCandidate		match = null;
 	
 	public JSONObject getJSON(Properties options) throws JSONException {
 		JSONObject o = new JSONObject();
-		
-		if (judgment == Judgment.None) {
-			o.put("j", "none");
-		} else if (judgment == Judgment.Approve) {
-			o.put("j", "approve");
-		} else if (judgment == Judgment.New) {
-			o.put("j", "new");
-		}
+		o.put("j", judgmentToString());
 		
 		return o;
 	}
+
+	@Override
+	public Object getField(String name, Properties bindings) {
+		if ("best".equals(name)) {
+			return candidates.size() > 0 ? candidates.get(0) : null;
+		} else if ("judgment".equals(name) || "judgement".equals(name)) {
+			return judgmentToString();
+		} else if ("approved".equals(name)) {
+			return judgment == Judgment.Approve;
+		} else if ("new".equals(name)) {
+			return judgment == Judgment.New;
+		} else if ("match".equals(name)) {
+			return match;
+		}
+		return null;
+	}
+	
+	protected String judgmentToString() {
+		if (judgment == Judgment.Approve) {
+			return "approve";
+		} else if (judgment == Judgment.New) {
+			return "new";
+		} else {
+			return "none";
+		}
+	}
+	
+	public class Features implements HasFields {
+		@Override
+		public Object getField(String name, Properties bindings) {
+			return features.get(name);
+		}
+	}
 }

src/main/java/com/metaweb/gridlock/model/ReconCandidate.java

@@ -6,13 +6,16 @@ import java.util.Properties;
 import org.json.JSONException;
 import org.json.JSONObject;
 
-public class ReconCandidate implements Serializable {
+import com.metaweb.gridlock.expr.HasFields;
+
+public class ReconCandidate implements Serializable, HasFields {
 	private static final long serialVersionUID = -8013997214978715606L;
 	
 	public String 	topicID;
 	public String 	topicGUID;
 	public String	topicName;
 	public String[] typeIDs;
+	public double	score;
 	
 	public JSONObject getJSON(Properties options) throws JSONException {
 		JSONObject o = new JSONObject();
@@ -21,7 +24,24 @@ public class ReconCandidate implements Serializable {
 		o.put("guid", topicGUID);
 		o.put("name", topicName);
 		o.put("types", typeIDs);
+		o.put("score", score);
 		
 		return o;
 	}
+
+	@Override
+	public Object getField(String name, Properties bindings) {
+		if ("id".equals(name)) {
+			return topicName;
+		} else if ("guid".equals(name)) {
+			return topicGUID;
+		} else if ("name".equals(name)) {
+			return topicName;
+		} else if ("type".equals(name)) {
+			return typeIDs;
+		} else if ("score".equals(name)) {
+			return score;
+		}
+		return null;
+	}
 }

src/main/java/com/metaweb/gridlock/model/Row.java

@@ -8,7 +8,9 @@ import java.util.Properties;
 import org.json.JSONException;
 import org.json.JSONObject;
 
-public class Row implements Serializable {
+import com.metaweb.gridlock.expr.HasFields;
+
+public class Row implements Serializable, HasFields {
 	private static final long serialVersionUID = -689264211730915507L;
 	
 	public boolean		flagged;
@@ -32,4 +34,31 @@ public class Row implements Serializable {
 		
 		return o;
 	}
+
+	@Override
+	public Object getField(String name, Properties bindings) {
+		if ("flagged".equals(name)) {
+			return flagged;
+		} else if ("starred".equals(name)) {
+			return starred;
+		} else if ("cells".equals(name)) {
+			return new Cells();
+		}
+		return null;
+	}
+	
+	public class Cells implements HasFields {
+		private Cells() {};
+
+		@Override
+		public Object getField(String name, Properties bindings) {
+			Project project = (Project) bindings.get("project");
+			Column column = project.columnModel.getColumnByName(name);
+			if (column != null) {
+				return cells.get(column.cellIndex);
+			}
+			return null;
+		}
+		
+	}
 }