/**
* Copyright (C) 2014 JBoss Inc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.dashbuilder.dataset;
import java.io.Serializable;
import java.text.ParseException;
import java.util.Arrays;
import java.util.Date;
import java.util.List;
import org.dashbuilder.dataset.ColumnType;
import org.dashbuilder.dataset.DataSet;
import org.dashbuilder.dataset.impl.DataSetImpl;
public class RawDataSet implements Serializable {
protected String[][] data;
protected Class[] types;
protected String[] columnIds;
protected DataSetFormatter dataSetFormatter;
public static final List<Class<?>> SUPPORTED_TYPES = Arrays.asList(new Class<?>[]{String.class, Double.class, Integer.class, Date.class});
public RawDataSet(String[] columnIds, Class[] types, String[][] data) {
this(columnIds, types, data, new DataSetFormatter());
}
public RawDataSet(String[] columnIds, Class[] types, String[][] data, DataSetFormatter formatter) {
this.columnIds = columnIds;
this.types = types;
this.data = data;
this.dataSetFormatter = formatter;
for (Class<?> type : types) {
if (!SUPPORTED_TYPES.contains(type)) {
throw new IllegalArgumentException("Type not supported: " + type);
}
}
}
public String getRawValueAt(int x, int y) {
if (x >= data.length) throw new IndexOutOfBoundsException("Max row index allowed: " + (data.length-1));
String[] row = data[x];
if (y >= row.length) throw new IndexOutOfBoundsException("Max column index allowed: " + (row.length-1));
return row[y];
}
public Object parseValue(String rawValue, Class<?> type) throws ParseException {
if (Date.class.isAssignableFrom(type)) {
return dataSetFormatter.dateFormat.parse(rawValue);
}
if (Number.class.isAssignableFrom(type)) {
return dataSetFormatter.numberFormat.parse(rawValue).doubleValue();
}
return rawValue;
}
public DataSet toDataSet() throws ParseException {
DataSetImpl dataSet = new DataSetImpl();
for (int i = 0; i < columnIds.length; i++) {
dataSet.addColumn(columnIds[i], getColumnType(types[i]));
for (int j = 0; j < data.length; j++) {
String[] row = data[j];
Object value = parseValue(row[i], types[i]);
dataSet.setValueAt(j, i, value);
}
}
return dataSet;
}
public ColumnType getColumnType(Class<?> type) {
if (Date.class.isAssignableFrom(type)) return ColumnType.DATE;
if (Number.class.isAssignableFrom(type)) return ColumnType.NUMBER;
return ColumnType.LABEL;
}
}