/*******************************************************************************
* Copyright (c) 2006 IBM Corporation.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - Jeff Briggs, Henry Hughes, Ryan Morse
*******************************************************************************/
package org.eclipse.linuxtools.systemtap.graphing.core.datasets.row;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.PrintStream;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import org.eclipse.linuxtools.internal.systemtap.graphing.core.Localization;
import org.eclipse.linuxtools.systemtap.graphing.core.datasets.IDataEntry;
import org.eclipse.linuxtools.systemtap.graphing.core.datasets.IHistoricalDataSet;
public class RowDataSet implements IHistoricalDataSet {
//IDataSet Methods
public RowDataSet(String[] titles) {
if (titles != null){
this.titles = Arrays.copyOf(titles, titles.length);
}
data = new ArrayList<>();
}
@Override
public void setData(IDataEntry entry) {
append(entry);
}
@Override
public void append(IDataEntry entry) {
RowEntry dataBlock = (RowEntry)entry;
if(dataBlock.getRow(null).length != this.getColCount())
throw new ArrayIndexOutOfBoundsException(Localization.getString("RowDataSet.ArraySizeMismatch") + dataBlock.getRow(null).length + " != " + this.getColCount()); //$NON-NLS-1$ //$NON-NLS-2$
data.add(entry);
}
@Override
public String[] getTitles() {
return titles;
}
@Override
public Object[] getColumn(int col) {
return getColumn(col, 0, getRowCount());
}
@Override
public Object[] getColumn(int col, int start, int end) {
return getHistoricalData(null, col, start, end);
}
@Override
public Object[] getRow(int row) {
IDataEntry entry = getEntry(row);
if(null != entry) {
return entry.getRow(null);
}
return null;
}
@Override
public int getRowCount() {
return getEntryCount();
}
@Override
public int getColCount() {
if(null == titles) {
return -1;
}
return titles.length;
}
@Override
public boolean readFromFile(File file) {
try (FileReader fr = new FileReader(file);
BufferedReader br = new BufferedReader(fr)){
br.readLine(); //Skip the ID
br.readLine(); //Skip the Titles
String line;
RowEntry entry;
while(null != (line = br.readLine())) {
entry = new RowEntry();
entry.putRow(0, line.split(", ")); //$NON-NLS-1$
append(entry);
}
return true;
} catch(IOException|ArrayIndexOutOfBoundsException e) {
}
return false;
}
@Override
public boolean writeToFile(File file) {
try {
file.createNewFile();
try (FileOutputStream fos = new FileOutputStream(file);
PrintStream ps = new PrintStream(fos)) {
String line = ""; //$NON-NLS-1$
Object[] dataRow;
// ID
ps.print(ID + "\n"); //$NON-NLS-1$
// Labels
int i, j;
for (i = 0; i < titles.length; i++)
line += titles[i] + ", "; //$NON-NLS-1$
ps.print(line + "\n"); //$NON-NLS-1$
// Data
for (i = 0; i < getRowCount(); i++) {
dataRow = getRow(i);
line = ""; //$NON-NLS-1$
for (j = 0; j < dataRow.length; j++)
line += dataRow[j].toString() + ", "; //$NON-NLS-1$
ps.print(line + "\n"); //$NON-NLS-1$
}
}
return true;
} catch (IOException e) {
}
return false;
}
@Override
public String getID() {
return ID;
}
//End IDataSet Methods
//IHistoricalDataSet Methods
@Override
public Object[] getHistoricalData(String key, int col) {
return getHistoricalData(key, col, 0, getRowCount());
}
@Override
public Object[] getHistoricalData(String key, int col, int start, int end) {
if(start > end || start < 0 || end > getRowCount() || col < COL_ROW_NUM || col >= this.getColCount()) {
return null;
}
if(COL_ROW_NUM == col) {
Integer[] rows = new Integer[Math.min(end-start, data.size())];
for(int i=0;i<rows.length; i++) {
rows[i] = Integer.valueOf(start+i+1);
}
return rows;
}
Object[] d = new Object[Math.min(end-start, data.size())];
for(int i=0; i<d.length; i++) {
d[i] = data.get(start+i).getColumn(col)[0];
}
return d;
}
@Override
public int getEntryCount() {
return data.size();
}
@Override
public boolean remove(IDataEntry entry) {
return data.remove(entry);
}
@Override
public boolean remove(int entry) {
if(entry < 0 || entry >= data.size()) {
return false;
}
return (null != data.remove(entry));
}
@Override
public IDataEntry getEntry(int entry) {
if(entry < 0 || entry >= getEntryCount()) {
return null;
} else {
return data.get(entry);
}
}
//End IHistoricalDataSet Methods
protected List<IDataEntry> data;
private String[] titles;
public static final String ID = "org.eclipse.linuxtools.systemtap.graphing.core.datasets.rowdataset"; //$NON-NLS-1$
}