/**
* Examines the supplied experiment to determine the results destination and attempts to load the
* results.
*
* @param exp a value of type 'Experiment'
*/
protected void setInstancesFromExp(Experiment exp) {
if ((exp.getResultListener() instanceof CSVResultListener)) {
File resultFile = ((CSVResultListener) exp.getResultListener()).getOutputFile();
if ((resultFile == null)) {
m_FromLab.setText("No result file");
} else {
setInstancesFromFile(resultFile);
}
} else if (exp.getResultListener() instanceof DatabaseResultListener) {
String dbaseURL = ((DatabaseResultListener) exp.getResultListener()).getDatabaseURL();
try {
if (m_InstanceQuery == null) {
m_InstanceQuery = new InstanceQuery();
}
m_InstanceQuery.setDatabaseURL(dbaseURL);
m_InstanceQuery.connectToDatabase();
String tableName = m_InstanceQuery.getResultsTableName(exp.getResultProducer());
setInstancesFromDatabaseTable(tableName);
} catch (Exception ex) {
m_FromLab.setText("Problem reading database");
}
} else {
m_FromLab.setText("Can't get results from experiment");
}
}
/** Queries the user enough to make a database query to retrieve experiment results. */
protected void setInstancesFromDBaseQuery() {
try {
if (m_InstanceQuery == null) {
m_InstanceQuery = new InstanceQuery();
}
String dbaseURL = m_InstanceQuery.getDatabaseURL();
dbaseURL =
(String)
JOptionPane.showInputDialog(
this,
"Enter the database URL",
"Query Database",
JOptionPane.PLAIN_MESSAGE,
null,
null,
dbaseURL);
if (dbaseURL == null) {
m_FromLab.setText("Cancelled");
return;
}
m_InstanceQuery.setDatabaseURL(dbaseURL);
m_InstanceQuery.connectToDatabase();
if (!m_InstanceQuery.experimentIndexExists()) {
m_FromLab.setText("No experiment index");
return;
}
m_FromLab.setText("Getting experiment index");
Instances index =
m_InstanceQuery.retrieveInstances("SELECT * FROM " + InstanceQuery.EXP_INDEX_TABLE);
if (index.numInstances() == 0) {
m_FromLab.setText("No experiments available");
return;
}
m_FromLab.setText("Got experiment index");
DefaultListModel lm = new DefaultListModel();
for (int i = 0; i < index.numInstances(); i++) {
lm.addElement(index.instance(i).toString());
}
JList jl = new JList(lm);
ListSelectorDialog jd = new ListSelectorDialog(null, jl);
int result = jd.showDialog();
if (result != ListSelectorDialog.APPROVE_OPTION) {
m_FromLab.setText("Cancelled");
return;
}
Instance selInst = index.instance(jl.getSelectedIndex());
Attribute tableAttr = index.attribute(InstanceQuery.EXP_RESULT_COL);
String table = InstanceQuery.EXP_RESULT_PREFIX + selInst.toString(tableAttr);
setInstancesFromDatabaseTable(table);
} catch (Exception ex) {
m_FromLab.setText("Problem reading database");
}
}
/**
* Queries a database to load results from the specified table name. The database connection must
* have already made by m_InstanceQuery.
*
* @param tableName the name of the table containing results to retrieve.
*/
protected void setInstancesFromDatabaseTable(String tableName) {
try {
m_FromLab.setText("Reading from database, please wait...");
final Instances i = m_InstanceQuery.retrieveInstances("SELECT * FROM " + tableName);
SwingUtilities.invokeAndWait(
new Runnable() {
public void run() {
setInstances(i);
}
});
m_InstanceQuery.disconnectFromDatabase();
} catch (Exception ex) {
m_FromLab.setText(ex.getMessage());
}
}
/**
* Test the class from the command line. The instance query should be specified with -Q sql_query
*
* @param args contains options for the instance query
*/
public static void main(String args[]) {
try {
InstanceQuery iq = new InstanceQuery();
String query = Utils.getOption('Q', args);
if (query.length() == 0) {
iq.setQuery("select * from Experiment_index");
} else {
iq.setQuery(query);
}
iq.setOptions(args);
try {
Utils.checkForRemainingOptions(args);
} catch (Exception e) {
System.err.println("Options for weka.experiment.InstanceQuery:\n");
Enumeration en = iq.listOptions();
while (en.hasMoreElements()) {
Option o = (Option) en.nextElement();
System.err.println(o.synopsis() + "\n" + o.description());
}
System.exit(1);
}
Instances aha = iq.retrieveInstances();
iq.disconnectFromDatabase();
// query returned no result -> exit
if (aha == null) return;
// The dataset may be large, so to make things easier we'll
// output an instance at a time (rather than having to convert
// the entire dataset to one large string)
System.out.println(new Instances(aha, 0));
for (int i = 0; i < aha.numInstances(); i++) {
System.out.println(aha.instance(i));
}
} catch (Exception e) {
e.printStackTrace();
System.err.println(e.getMessage());
}
}
/** Queries the user enough to make a database query to retrieve experiment results. */
protected void setInstancesFromDBaseQuery() {
try {
if (m_InstanceQuery == null) {
m_InstanceQuery = new InstanceQuery();
}
String dbaseURL = m_InstanceQuery.getDatabaseURL();
String username = m_InstanceQuery.getUsername();
String passwd = m_InstanceQuery.getPassword();
/*dbaseURL = (String) JOptionPane.showInputDialog(this,
"Enter the database URL",
"Query Database",
JOptionPane.PLAIN_MESSAGE,
null,
null,
dbaseURL);*/
DatabaseConnectionDialog dbd = new DatabaseConnectionDialog(null, dbaseURL, username);
dbd.setVisible(true);
// if (dbaseURL == null) {
if (dbd.getReturnValue() == JOptionPane.CLOSED_OPTION) {
m_FromLab.setText("Cancelled");
return;
}
dbaseURL = dbd.getURL();
username = dbd.getUsername();
passwd = dbd.getPassword();
m_InstanceQuery.setDatabaseURL(dbaseURL);
m_InstanceQuery.setUsername(username);
m_InstanceQuery.setPassword(passwd);
m_InstanceQuery.setDebug(dbd.getDebug());
m_InstanceQuery.connectToDatabase();
if (!m_InstanceQuery.experimentIndexExists()) {
System.err.println("not found");
m_FromLab.setText("No experiment index");
m_InstanceQuery.disconnectFromDatabase();
return;
}
System.err.println("found");
m_FromLab.setText("Getting experiment index");
Instances index =
m_InstanceQuery.retrieveInstances("SELECT * FROM " + InstanceQuery.EXP_INDEX_TABLE);
if (index.numInstances() == 0) {
m_FromLab.setText("No experiments available");
m_InstanceQuery.disconnectFromDatabase();
return;
}
m_FromLab.setText("Got experiment index");
DefaultListModel lm = new DefaultListModel();
for (int i = 0; i < index.numInstances(); i++) {
lm.addElement(index.instance(i).toString());
}
JList jl = new JList(lm);
jl.setSelectedIndex(0);
int result;
// display dialog only if there's not just one result!
if (jl.getModel().getSize() != 1) {
ListSelectorDialog jd = new ListSelectorDialog(null, jl);
result = jd.showDialog();
} else {
result = ListSelectorDialog.APPROVE_OPTION;
}
if (result != ListSelectorDialog.APPROVE_OPTION) {
m_FromLab.setText("Cancelled");
m_InstanceQuery.disconnectFromDatabase();
return;
}
Instance selInst = index.instance(jl.getSelectedIndex());
Attribute tableAttr = index.attribute(InstanceQuery.EXP_RESULT_COL);
String table = InstanceQuery.EXP_RESULT_PREFIX + selInst.toString(tableAttr);
setInstancesFromDatabaseTable(table);
} catch (Exception ex) {
// 1. print complete stacktrace
ex.printStackTrace();
// 2. print message in panel
m_FromLab.setText("Problem reading database: '" + ex.getMessage() + "'");
}
}
public void processFolder(File folder) throws Exception {
if (!folder.isDirectory()) {
// manipulate file here
String fileName = folder.getName();
System.out.println(fileName);
// String extension = getFileExtension(fileName);
testdata = new Instances(new BufferedReader(new FileReader(folder)));
if (!fileName.startsWith(".") && (fileName.contains(".csv") || fileName.contains(".xls"))) {
CSVLoader loader = new CSVLoader();
loader.setSource(new File(folder.getAbsolutePath()));
traindata = loader.getDataSet();
System.out.println(traindata.toSummaryString());
this.chooseClassifier();
} else if (!fileName.startsWith(".") && fileName.contains(".txt")) {
TextDirectoryLoader loader = new TextDirectoryLoader();
System.out.println("About to load text file " + fileName);
System.out.println("Name of path " + folder.getAbsolutePath());
loader.setSource(folder);
traindata = loader.getDataSet();
System.out.println(traindata.toSummaryString());
this.chooseClassifier();
} else if (!fileName.startsWith(".") && fileName.contains(".json")) {
JSONLoader loader = new JSONLoader();
loader.setSource(new File(folder.getAbsolutePath()));
traindata = loader.getDataSet();
System.out.println(traindata.toSummaryString());
this.chooseClassifier();
} else if (!fileName.startsWith(".") && fileName.contains(".xrff")) {
XRFFLoader loader = new XRFFLoader();
loader.setSource(new File(folder.getAbsolutePath()));
traindata = loader.getDataSet();
System.out.println(traindata.toSummaryString());
this.chooseClassifier();
} else if (!fileName.startsWith(".") && fileName.contains(".arff")) {
traindata = new Instances(new BufferedReader(new FileReader(folder.getAbsolutePath())));
testdata = new Instances(new BufferedReader(new FileReader(folder)));
System.out.println(traindata.toSummaryString());
this.chooseClassifier();
} else if (!fileName.startsWith(".") && fileName.contains(".mdf")) {
DatabaseConnection loader = new DatabaseConnection();
loader.connectToDatabase();
InstanceQuery query = new InstanceQuery();
query.setUsername("lamogha");
query.setPassword("l@mmyPHD");
query.setQuery("select * from customers");
// You can declare that your data set is sparse
// query.setSparseData(true);
Instances data = query.retrieveInstances();
System.out.println(data.toSummaryString());
this.chooseClassifier();
}
} else {
for (final File fileEntry : folder.listFiles()) {
if (fileEntry.isDirectory()) {
this.processFolder(fileEntry);
} else {
// manipulate file here
String fileName = fileEntry.getName();
System.out.println(fileName);
if (!fileName.startsWith(".")
&& (fileName.contains(".csv") || fileName.contains(".xls"))) {
CSVLoader loader = new CSVLoader();
loader.setSource(new File(fileEntry.getAbsolutePath()));
traindata = loader.getDataSet();
System.out.println(traindata.toSummaryString());
this.chooseClassifier();
} else if (!fileName.startsWith(".") && fileName.contains(".txt")) {
TextDirectoryLoader loader = new TextDirectoryLoader();
System.out.println("About to load text file " + fileName);
System.out.println("Name of path " + fileEntry.getAbsolutePath());
loader.setSource(folder);
traindata = loader.getDataSet();
System.out.println(traindata.toSummaryString());
this.chooseClassifier();
} else if (!fileName.startsWith(".") && fileName.contains(".json")) {
JSONLoader loader = new JSONLoader();
loader.setSource(new File(fileEntry.getAbsolutePath()));
traindata = loader.getDataSet();
System.out.println(traindata.toSummaryString());
this.chooseClassifier();
} else if (!fileName.startsWith(".") && fileName.contains(".xrff")) {
XRFFLoader loader = new XRFFLoader();
loader.setSource(new File(fileEntry.getAbsolutePath()));
traindata = loader.getDataSet();
System.out.println(traindata.toSummaryString());
this.chooseClassifier();
} else if (!fileName.startsWith(".")) {
traindata =
new Instances(new BufferedReader(new FileReader(fileEntry.getAbsolutePath())));
System.out.println(traindata.toSummaryString());
this.chooseClassifier();
} else if (!fileName.startsWith(".") && fileName.contains(".mdf")) {
DatabaseConnection loader = new DatabaseConnection();
loader.connectToDatabase();
InstanceQuery query = new InstanceQuery();
query.setUsername("lamogha");
query.setPassword("l@mmyPHD");
query.setQuery("select * from customers");
// You can declare that your data set is sparse
// query.setSparseData(true);
Instances data = query.retrieveInstances();
System.out.println(data.toSummaryString());
this.chooseClassifier();
}
}
}
// System.exit(0);
}
}
public static Instances readDB(String sqlQuery, String tableName, int sourceIndex) {
/*
proper mysql query is needed.
sqlQuery : "SELECT * FROM AccelerometerSensorProbe"
*/
if (!sqlQuery.contains(tableName)) {
System.out.println("tableName must be included in sqlQuery!");
System.out.println("tableName : " + tableName + " / sqlQuery : " + sqlQuery);
System.exit(-1);
}
ProjectEvaluator.tableUsed(tableName);
Instances dataSet = null;
try {
InstanceQuery query = new InstanceQuery();
if (sourceIndex == 0) {
query.setDatabaseURL(DBConn.url);
query.setUsername(DBConn.user);
query.setPassword(DBConn.pwd);
} else if (sourceIndex == 1) {
query.setDatabaseURL(DBConn.url_validation);
query.setUsername(DBConn.user_validation);
query.setPassword(DBConn.pwd_validation);
} else if (sourceIndex == 2) {
query.setDatabaseURL(ProjectEvaluator.testUrl);
query.setUsername(ProjectEvaluator.testUser);
query.setPassword(ProjectEvaluator.testPwd);
} else {
throw new Exception("source index must be 0, 1 or 2!");
}
query.setQuery(sqlQuery);
dataSet = query.retrieveInstances();
dataSet.setClassIndex(dataSet.numAttributes() - 1);
} catch (Exception e) {
e.printStackTrace();
}
return dataSet;
}