com.github.fracpete.wekavirtualenv.gui.command.Script Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of weka-virtualenv Show documentation
Show all versions of weka-virtualenv Show documentation
Virtual environment managment for Weka.
The newest version!
/*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see lines;
try {
lines = Files.readAllLines(file.toPath());
m_TextScript.setText(Utils.flatten(lines, "\n"));
m_CurrentFile = file;
}
catch (Exception e) {
GUIHelper.showErrorMessage(this, "Failed to load script: " + file, e);
}
}
/**
* Lets the user load a script.
*/
public void loadScript() {
int retVal;
retVal = m_FileChooser.showOpenDialog(this);
if (retVal != BaseFileChooser.APPROVE_OPTION)
return;
loadScript(m_FileChooser.getSelectedFile());
}
/**
* Lets the user save the current script.
*/
public void saveScript() {
if (m_CurrentFile == null) {
saveScriptAs();
return;
}
saveScript(m_CurrentFile);
}
/**
* Saves the current script under the specified file name.
*
* @param file the file to save to
* @see #m_CurrentFile
*/
protected void saveScript(File file) {
String msg;
msg = FileUtils.writeToFileMsg(file.getAbsolutePath(), m_TextScript.getText(), false, null);
if (msg != null)
GUIHelper.showErrorMessage(this, "Failed to save script to: " + file + "\n" + msg);
}
/**
* Lets the user save the current script under a new name.
*/
public void saveScriptAs() {
int retVal;
File file;
retVal = m_FileChooser.showSaveDialog(this);
if (retVal != BaseFileChooser.APPROVE_OPTION)
return;
file = m_FileChooser.getSelectedFile();
saveScript(file);
m_CurrentFile = file;
}
/**
* Saves the current script to a temp file and returns the name.
*
* @return the generated file name
*/
protected File saveScriptToTempFile() {
File result;
result = new File(
System.getProperty("java.io.tmpdir")
+ File.separator
+ Long.toHexString(System.currentTimeMillis())
+ "-"
+ Integer.toHexString(m_Counter++)
+ ".scr");
saveScript(result);
return result;
}
/**
* Gets called when output was produced.
*
* @param line the line to process
* @param stdout whether stdout or stderr
*/
public void outputOccurred(String line, boolean stdout) {
boolean atEnd;
atEnd = (m_TextOutput.getCaretPosition() == m_TextOutput.getText().length());
m_TextOutput.append(line + "\n", stdout ? m_StdOutAttributeSet : m_StdErrAttributeSet);
if (atEnd)
m_TextOutput.setCaretPosition(m_TextOutput.getText().length());
}
/**
* Executes the currently loaded script.
*/
public void execute() {
SwingWorker worker;
final ScriptPanel owner;
owner = this;
worker = new SwingWorker() {
protected String m_Error;
@Override
protected Object doInBackground() throws Exception {
m_TextOutput.setText("");
File tmpFile = saveScriptToTempFile();
m_Command = new com.github.fracpete.wekavirtualenv.command.Script();
m_Command.addOutputListener(owner);
boolean result = m_Command.execute(new String[]{
"--file",
tmpFile.getAbsolutePath(),
});
if (!result) {
if (m_Command.hasErrors())
m_Error = m_Command.getErrors();
else
m_Error = "Failed to execute script!";
}
return null;
}
@Override
protected void done() {
super.done();
m_Command = null;
if (m_Error != null)
GUIHelper.showErrorMessage(owner, m_Error);
}
};
worker.execute();
}
/**
* Destroys the process if possible.
*/
public void stop() {
if (m_Command != null)
m_Command.destroy();
}
/**
* Removes itself from the tabbed pane (after stopping).
*/
public void close() {
stop();
m_Owner.remove(this);
}
}
/** the script panel. */
protected ScriptPanel m_PanelScript;
/** the counter for the script panels. */
protected static int m_PanelCounter;
static {
m_PanelCounter = 0;
}
/**
* Returns the name of the action (displayed in GUI).
*
* @return the name
*/
@Override
public String getName() {
return "Script";
}
/**
* The group this action belongs to.
*
* @return the group
*/
@Override
public String getGroup() {
return "run";
}
/**
* Returns whether the action requires an environment.
*
* @return true if the action requires an environment
*/
@Override
public boolean requiresEnvironment() {
return false;
}
/**
* Returns whether the action generates console output.
*
* @return true if the action generates console output
*/
public boolean generatesOutput() {
return false;
}
/**
* Performs the actual execution.
*
* @return null if successful, otherwise error message
*/
@Override
protected String doExecute() {
m_PanelCounter++;
m_PanelScript = new ScriptPanel(getTabbedPane());
getTabbedPane().addTab("Script (" + m_PanelCounter + ")", m_PanelScript);
return null;
}
/**
* Destroys the process if possible.
*/
public void destroy() {
if (m_PanelScript != null)
m_PanelScript.stop();
}
}