Package prefuse.data

Examples of prefuse.data.Table

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  Table table;

  @Override
  protected void setUp() throws Exception {
    super.setUp();
    this.table = new Table();
    this.table.addColumn("String", String.class);
    this.table.addColumn("int", int.class);
    this.table.addColumn("Integer[]", Integer[].class);
    for (int i = 0; i < 10; i++) {
      int r = this.table.addRow();
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    // }
  }

  @Test
  public void testCopyTable() {
    Table t2 = TableUtilities.copyTable(this.table);

    for (IntIterator rows = t2.rows(); rows.hasNext();) {
      int row = (Integer) rows.next();
      for (int col = 0; col < t2.getColumnCount(); col++) {
        assertTrue(t2.get(row, col) + " " + this.table.get(row, col)
            + " didn't match.",
            t2.get(row, col).equals(this.table.get(row, col)));
      }

    }

    this.table.removeRow(3);
    try {
      this.table.get(3, 1);
      fail();
    } catch (IllegalArgumentException e) {
      // ok, row three is gone!
    }
   
    // Make sure row three is still in the table we copied.
    t2.get(3, 1);

    t2 = TableUtilities.copyTable(this.table);
    for (IntIterator t2Rows = t2.rows(), tableRows = this.table.rows(); t2Rows
        .hasNext();) {
      int t2Row = (Integer) t2Rows.next();
      int tableRow = (Integer) tableRows.next();
      for (int col = 0; col < t2.getColumnCount(); col++) {
        Object t2Value = t2.get(t2Row, col);
        Object tableValue = this.table.get(tableRow, col);
        assertTrue("3 should have been removed!", !t2Value.equals(3));
        assertTrue(t2Value + " " + tableValue + " didn't match.",
            t2Value.equals(tableValue));
      }
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    }
  }
 
  @Test
  public void testCopyNRowsFromTableUsingIntIterator() {
    Table tbl = TableUtilities.copyNRowsFromTableUsingIntIterator(
        this.table, this.table.rows(), Integer.MAX_VALUE, true);
    assertTrue(tbl.getRowCount() == this.table.getRowCount());

    tbl = TableUtilities.copyNRowsFromTableUsingIntIterator(this.table,
        this.table.rows(), Integer.MAX_VALUE, false);
    assertTrue(tbl.getRowCount() == this.table.getRowCount());

    tbl = TableUtilities.copyNRowsFromTableUsingIntIterator(this.table,
        this.table.rows(), 0, false);
    assertTrue(tbl.getRowCount() == 0);

    try {
      TableUtilities.copyNRowsFromTableUsingIntIterator(this.table,
          this.table.rows(), -100, false);
      fail();
    } catch (IllegalArgumentException e) {
      // good, negative is not allowed
    }

    tbl = TableUtilities.copyNRowsFromTableUsingIntIterator(this.table,
        this.table.rows(), 3, true);
    assertTrue(tbl.getRowCount() == 3);
    tbl = TableUtilities.copyNRowsFromTableUsingIntIterator(this.table,
        this.table.rows(), 3, false);
    assertTrue(tbl.getRowCount() == 3);
   
    tbl =  TableUtilities.copyNRowsFromTableUsingIntIterator(this.table, this.table.rowsSortedBy("int", true), 1, true);
    assertTrue(tbl.getRowCount() == 1);
    assertTrue(tbl.get(0, "int").equals(9));
   
    tbl =  TableUtilities.copyNRowsFromTableUsingIntIterator(this.table, this.table.rowsSortedBy("int", true), 1, false);
    assertTrue(tbl.getRowCount() == 1);
    assertTrue(tbl.get(0, "int").equals(0));
   
    tbl =  TableUtilities.copyNRowsFromTableUsingIntIterator(this.table, this.table.rowsSortedBy("int", true), 3, true);
    assertTrue(tbl.getRowCount() == 3);
    assertTrue(tbl.get(0, "int").equals(9));
    assertTrue(tbl.get(1, "int").equals(8));
    assertTrue(tbl.get(2, "int").equals(7));
   
    tbl =  TableUtilities.copyNRowsFromTableUsingIntIterator(this.table, this.table.rowsSortedBy("int", true), 3, false);
    assertTrue(tbl.getRowCount() == 3);
    assertTrue(tbl.get(0, "int").equals(0));
    assertTrue(tbl.get(1, "int").equals(1));
    assertTrue(tbl.get(2, "int").equals(2));
  }
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  public void testCopyTableRow() {
    /*
     * Check the good, normal case
     */
   
    Table table2 = TableUtilities.copyTable(this.table);
    int row = table2.addRow();
   
    TableUtilities.copyTableRow(row, 0, table2, this.table);
   
    for (int i = 0; i < table2.getColumnCount(); i++) {     
      assertTrue(table2.get(0, i).equals(table2.get(row, i)));
    }
   
    /*
     * Check crazy values
     */
    try {
      TableUtilities.copyTableRow(row, 89239, table2, this.table);
      fail();
    } catch (IllegalArgumentException e) {
      // Good, it was noticed that was a bad row
      assertTrue(e.getMessage().contains("Invalid row number"));
    }
   
    try {
      TableUtilities.copyTableRow(-15, 2, table2, this.table);
      fail();
    } catch (IllegalArgumentException e) {
      // Good, it was noticed that was a bad row
      assertTrue(e.getMessage().contains("Invalid row number"));
    }
   
    try {
      TableUtilities.copyTableRow(0, 0, null, this.table);
      fail();
    } catch (NullPointerException e) {
      // Good, it was caught.
    }
   
    try {
      TableUtilities.copyTableRow(0, 0, this.table, null);
      fail();
    } catch (NullPointerException e) {
      // Good, it was caught.
    }
   
    /*
     * Check unassignable tables
     */
    table2 = new Table();
    table2.addColumn("String", String.class);
    table2.addColumn("int", int.class);
   
    row = table2.addRow();
   
    try{
      TableUtilities.copyTableRow(row, 0, table2, this.table);
      fail();
    }catch(IllegalArgumentException e) {
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    this.table.removeColumn("FooBarz1!");
    names = TableUtilities.getAllColumnNames(this.table.getSchema());
    assertFalse(names.contains("FooBarz1!"));
   
    Table table2 = new Table();
    try {
      names = TableUtilities.getAllColumnNames(table2.getSchema());
      fail();
    } catch (ColumnNotFoundException e) {
      // Good, there are no column names!
    }
   
    table2.addColumn("", Class.class);
    names = TableUtilities.getAllColumnNames(table2.getSchema());
    assertTrue(names.size() == 1);
    assertTrue(names.contains(""));
  }
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    assertTrue(names.contains(""));
  }
 
  @Test
  public void testGetValidXColumnNamesInTable() {
    Table t = new Table();
    t.addColumn("S1", String.class);
    t.addColumn("S2", String.class);
    t.addColumn("int1", int.class);
    t.addColumn("int2", Integer[].class);
    t.addColumn("float1", float.class);
    t.addColumn("number1", Number.class);
    t.addColumn("date1", Date.class);
    t.addColumn("boolean1", boolean.class);
   
    String[] stringColumns = TableUtilities.getValidStringColumnNamesInTable(t);
    assertTrue(Arrays.asList(stringColumns).containsAll(Arrays.asList(new String[]{"S1", "S2"})));
    assertFalse(Arrays.asList(stringColumns).contains("int1"));
    assertFalse(Arrays.asList(stringColumns).contains("int2"));
    assertFalse(Arrays.asList(stringColumns).contains("float1"));
    assertFalse(Arrays.asList(stringColumns).contains("number1"));
    assertFalse(Arrays.asList(stringColumns).contains("date1"));
    assertFalse(Arrays.asList(stringColumns).contains("boolean1"));
   
    String[] numberColumns = TableUtilities.getValidNumberColumnNamesInTable(t);
    assertTrue(Arrays.asList(numberColumns).containsAll(Arrays.asList(new String[]{"int1", "float1", "int2"})));
    assertFalse(Arrays.asList(numberColumns).contains("S1"));
    assertFalse(Arrays.asList(numberColumns).contains("S2"));
    assertFalse(Arrays.asList(numberColumns).contains("date1"));
    assertFalse(Arrays.asList(numberColumns).contains("boolean1"));
   
    String[] dateColumns = TableUtilities.getValidDateColumnNamesInTable(t);
    assertTrue(Arrays.asList(dateColumns).containsAll(Arrays.asList(new String[]{"int1", "S1", "S2", "date1", "int2"})));
    assertFalse(Arrays.asList(dateColumns).contains("float1"));
    assertFalse(Arrays.asList(dateColumns).contains("number1")); 
    assertFalse(Arrays.asList(dateColumns).contains("boolean1"));
   
    //int
    String[] intColumns = TableUtilities.getValidIntegerColumnNamesInTable(t);
    assertTrue(Arrays.asList(intColumns).containsAll(Arrays.asList(new String[]{"int1", "int2"})));
    assertFalse(Arrays.asList(intColumns).contains("S1"));
    assertFalse(Arrays.asList(intColumns).contains("S2"));
    assertFalse(Arrays.asList(intColumns).contains("float1"));
    assertFalse(Arrays.asList(intColumns).contains("number1"));
    assertFalse(Arrays.asList(intColumns).contains("date1"));
    assertFalse(Arrays.asList(intColumns).contains("boolean1"));
   
    t = new Table();
    try {
      TableUtilities.getValidStringColumnNamesInTable(t);
      fail();
    } catch (ColumnNotFoundException e) {
      // Good, there are no columns in the table
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    } catch (NullPointerException e) {
      assertTrue(e.getMessage().contains("schema"));
    }
   
    try {
      TableUtilities.formNonConflictingNewColumnName(new Table().getSchema(), "suggestion");
      fail();
    } catch (ColumnNotFoundException e) {
      // Ok, the schema was empty and we got a normal message
    }
   
    assertTrue("I am a batman!".equals(TableUtilities.formNonConflictingNewColumnName(this.table.getSchema(), "I am a batman!")));
    assertFalse("int".equals(TableUtilities.formNonConflictingNewColumnName(this.table.getSchema(), "int")));
   
   
    /**
     * Test the version with multiple suggestions
     */
   
    try {
      TableUtilities.formNonConflictingNewColumnName(this.table.getSchema(), new String[] {null});     
    } catch (IllegalArgumentException e) {
      assertTrue(e.getMessage().contains("suggestedColumnNames"));
    }
   
    try {
      TableUtilities.formNonConflictingNewColumnName(null, new String[]{"suggestion"});
      fail();
    } catch (NullPointerException e) {
      assertTrue(e.getMessage().contains("schema"));
    }
    try {
      TableUtilities.formNonConflictingNewColumnName(new Table().getSchema(), new String[]{"suggestion"});
      fail();
    }catch (ColumnNotFoundException e) {
      // Ok, the schema was empty and we got a normal message
    }
   
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    String[].class,
  };

  public static Table copyTable(Table oldTable) {
    Schema oldSchema = oldTable.getSchema();
    Table newTable = oldSchema.instantiate();
   
    for (Iterator rowIt = oldTable.tuples(); rowIt.hasNext();) {
      Tuple row = (Tuple) rowIt.next();     
      newTable.addTuple(row);
    }   
   
    return newTable;
  }
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  {
    // TODO: Add a couple comments in this method
   
    Schema tableSchema = originalTable.getSchema();
    final int numTableRows = originalTable.getRowCount();
    Table newTable = createTableUsingSchema(tableSchema);
    final int numRowsToCopy = Math.min(numTableRows, topN);
    int[] originalTableRowsToCopy = new int [numTableRows];
   
    newTable.addRows(numRowsToCopy);
   
    for (int ii = 0; ii < numTableRows; ii++) {
      originalTableRowsToCopy[ii] = iterator.nextInt();
    }
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  /**
   * @deprecated Replace calls with schema.instantiate().
   */
  public static Table createTableUsingSchema(Schema tableSchema) {
    final int numTableColumns = tableSchema.getColumnCount();
    Table table = new Table();
   
    for (int ii = 0; ii < numTableColumns; ii++) {
      table.addColumn(tableSchema.getColumnName(ii), tableSchema.getColumnType(ii));
    }
   
    return table;
  }
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