public Object eval(ScriptEngine engine, String script, ScriptContext context)
throws ScriptException {
if (engine instanceof Compilable && Config.SCRIPT_ALLOW_COMPILATION) {
Compilable eng = (Compilable) engine;
CompiledScript cs = eng.compile(script);
return context != null ? cs.eval(context) : cs.eval();
} else return context != null ? engine.eval(script, context) : engine.eval(script);
}
boolean init_functions() {
GenericDialog gd = new GenericDialog("Fitting Options");
gd.addStringField("Extra Definitions", exdef, 50);
gd.addCheckbox("Weight Using Plot Errors", false);
gd.addStringField("Weighting Equation (y is for data)", weightfunction, 50);
gd.addStringField("Fit_Equation", function, 50);
gd.showDialog();
if (gd.wasCanceled()) {
return false;
}
exdef = gd.getNextString();
boolean errweights = gd.getNextBoolean();
weightfunction = gd.getNextString();
function = gd.getNextString();
// first initialize the weights
weights = new float[tempdata.length];
if (errweights
|| weightfunction.equals("")
|| weightfunction == null
|| weightfunction == "1.0") {
if (errweights) {
for (int i = 0; i < tempdata.length; i++) weights[i] = 1.0f / (errs[i] * errs[i]);
} else {
for (int i = 0; i < tempdata.length; i++) weights[i] = 1.0f;
}
} else {
for (int i = 0; i < tempdata.length; i++) {
String script =
"y =" + tempdata[i] + "; " + "x =" + tempx[i] + "; " + "retval=" + weightfunction + ";";
Double temp = new Double(0.0);
try {
temp = (Double) engine.eval(script);
} catch (Exception e) {
IJ.log(e.getMessage());
}
if (!(temp.isInfinite() || temp.isNaN())) {
weights[i] = temp.floatValue();
}
}
}
// now compile the function script
try {
String script1 = exdef + "; retval=" + function + ";";
cs = ce.compile(script1);
} catch (Exception e) {
IJ.log(e.toString());
return false;
}
return true;
}
public void executeScript(ScriptEngine engine, File file)
throws FileNotFoundException, ScriptException {
BufferedReader reader = new BufferedReader(new InputStreamReader(new FileInputStream(file)));
if (Config.SCRIPT_DEBUG) {
_log.info("Loading Script: " + file.getAbsolutePath());
}
if (Config.SCRIPT_ERROR_LOG) {
String name = file.getAbsolutePath() + ".error.log";
File errorLog = new File(name);
if (errorLog.isFile()) {
errorLog.delete();
}
}
if (engine instanceof Compilable && Config.SCRIPT_ALLOW_COMPILATION) {
ScriptContext context = new SimpleScriptContext();
context.setAttribute(
"mainClass",
getClassForFile(file).replace('/', '.').replace('\\', '.'),
ScriptContext.ENGINE_SCOPE);
context.setAttribute(ScriptEngine.FILENAME, file.getName(), ScriptContext.ENGINE_SCOPE);
context.setAttribute(
"classpath", SCRIPT_FOLDER.getAbsolutePath(), ScriptContext.ENGINE_SCOPE);
context.setAttribute(
"sourcepath", SCRIPT_FOLDER.getAbsolutePath(), ScriptContext.ENGINE_SCOPE);
context.setAttribute(
JythonScriptEngine.JYTHON_ENGINE_INSTANCE, engine, ScriptContext.ENGINE_SCOPE);
setCurrentLoadingScript(file);
ScriptContext ctx = engine.getContext();
try {
engine.setContext(context);
if (Config.SCRIPT_CACHE) {
CompiledScript cs = _cache.loadCompiledScript(engine, file);
cs.eval(context);
} else {
Compilable eng = (Compilable) engine;
CompiledScript cs = eng.compile(reader);
cs.eval(context);
}
} finally {
engine.setContext(ctx);
setCurrentLoadingScript(null);
context.removeAttribute(ScriptEngine.FILENAME, ScriptContext.ENGINE_SCOPE);
context.removeAttribute("mainClass", ScriptContext.ENGINE_SCOPE);
}
} else {
ScriptContext context = new SimpleScriptContext();
context.setAttribute(
"mainClass",
getClassForFile(file).replace('/', '.').replace('\\', '.'),
ScriptContext.ENGINE_SCOPE);
context.setAttribute(ScriptEngine.FILENAME, file.getName(), ScriptContext.ENGINE_SCOPE);
context.setAttribute(
"classpath", SCRIPT_FOLDER.getAbsolutePath(), ScriptContext.ENGINE_SCOPE);
context.setAttribute(
"sourcepath", SCRIPT_FOLDER.getAbsolutePath(), ScriptContext.ENGINE_SCOPE);
setCurrentLoadingScript(file);
try {
engine.eval(reader, context);
} finally {
setCurrentLoadingScript(null);
engine.getContext().removeAttribute(ScriptEngine.FILENAME, ScriptContext.ENGINE_SCOPE);
engine.getContext().removeAttribute("mainClass", ScriptContext.ENGINE_SCOPE);
}
}
}
