![David Huynh](/assets/img/avatar_default.png)
git-svn-id: http://google-refine.googlecode.com/svn/trunk@174 7d457c2a-affb-35e4-300a-418c747d4874
149 lines
4.4 KiB
Java
149 lines
4.4 KiB
Java
package com.metaweb.gridworks.model;
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import java.io.Serializable;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.Properties;
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import org.json.JSONException;
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import org.json.JSONWriter;
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import com.metaweb.gridworks.Jsonizable;
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import com.metaweb.gridworks.expr.HasFields;
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public class Row implements Serializable, HasFields, Jsonizable {
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private static final long serialVersionUID = -689264211730915507L;
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public boolean flagged;
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public boolean starred;
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final public List<Cell> cells;
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transient public int recordIndex; // -1 for rows that are not main record rows
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transient public List<Integer> contextRows;
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transient public int[] contextRowSlots;
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transient public int[] contextCellSlots;
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public Row(int cellCount) {
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cells = new ArrayList<Cell>(cellCount);
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}
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public Row dup() {
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Row row = new Row(cells.size());
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row.flagged = flagged;
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row.starred = starred;
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row.cells.addAll(cells);
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return row;
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}
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public Object getField(String name, Properties bindings) {
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if ("flagged".equals(name)) {
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return flagged;
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} else if ("starred".equals(name)) {
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return starred;
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} else if ("cells".equals(name)) {
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return new Cells();
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} else if ("index".equals(name)) {
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return bindings.get("rowIndex");
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}
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return null;
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}
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public boolean isEmpty() {
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for (Cell cell : cells) {
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if (cell != null && cell.value != null && !isValueBlank(cell.value)) {
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return false;
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}
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}
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return true;
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}
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public Cell getCell(int cellIndex) {
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if (cellIndex < cells.size()) {
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return cells.get(cellIndex);
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} else {
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return null;
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}
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}
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public Object getCellValue(int cellIndex) {
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if (cellIndex < cells.size()) {
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Cell cell = cells.get(cellIndex);
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if (cell != null) {
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return cell.value;
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}
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}
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return null;
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}
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public boolean isCellBlank(int cellIndex) {
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return isValueBlank(getCellValue(cellIndex));
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}
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protected boolean isValueBlank(Object value) {
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return value == null || !(value instanceof String) || ((String) value).trim().length() == 0;
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}
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public void setCell(int cellIndex, Cell cell) {
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if (cellIndex < cells.size()) {
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cells.set(cellIndex, cell);
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} else {
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while (cellIndex > cells.size()) {
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cells.add(null);
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}
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cells.add(cell);
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}
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}
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public class Cells implements HasFields {
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private Cells() {};
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public Object getField(String name, Properties bindings) {
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Project project = (Project) bindings.get("project");
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Column column = project.columnModel.getColumnByName(name);
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if (column != null) {
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int cellIndex = column.getCellIndex();
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return getCell(cellIndex);
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}
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return null;
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}
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}
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public void write(JSONWriter writer, Properties options)
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throws JSONException {
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writer.object();
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writer.key("flagged"); writer.value(flagged);
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writer.key("starred"); writer.value(starred);
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writer.key("cells"); writer.array();
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for (Cell cell : cells) {
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if (cell != null) {
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cell.write(writer, options);
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} else {
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writer.value(null);
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}
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}
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writer.endArray();
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if (recordIndex >= 0) {
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writer.key("j"); writer.value(recordIndex);
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}
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if (options.containsKey("rowIndex")) {
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writer.key("i"); writer.value(options.get("rowIndex"));
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}
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if (options.containsKey("extra")) {
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Properties extra = (Properties) options.get("extra");
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if (extra != null) {
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for (Object key : extra.keySet()) {
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writer.key((String) key);
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writer.value(extra.get(key));
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}
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}
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}
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writer.endObject();
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}
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}
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