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Code Issues Releases Wiki Activity

Fix exception handling.

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This commit is contained in:
Danila Fedorin 2017-08-05 15:58:43 -07:00
parent 2381c93fb5
commit 55257f7274
1 changed files with 11 additions and 4 deletions
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15
src/main/java/org/nwapw/abacus/fx/AbacusController.java
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@ -51,6 +51,10 @@ public class AbacusController implements PluginListener {
* Constant string that is displayed if the calculations are stopped before they are done.
*/
private static final String ERR_STOP = "Stopped";
/**
* Constant string that is displayed if the calculations are interrupted by an exception.
*/
private static final String ERR_EXCEPTION = "Exception Thrown";
@FXML
private TabPane coreTabPane;
@FXML
@ -118,11 +122,11 @@ public class AbacusController implements PluginListener {
private final Runnable CALCULATION_RUNNABLE = new Runnable() {
private String attemptCalculation(){
TreeNode constructedTree = abacus.parseString(inputField.getText());
if (constructedTree == null) {
return ERR_SYNTAX;
}
try {
TreeNode constructedTree = abacus.parseString(inputField.getText());
if (constructedTree == null) {
return ERR_SYNTAX;
}
NumberInterface evaluatedNumber = abacus.evaluateTree(constructedTree);
if (evaluatedNumber == null) {
return ERR_EVAL;
@ -132,6 +136,9 @@ public class AbacusController implements PluginListener {
return resultingString;
} catch (ComputationInterruptedException exception) {
return ERR_STOP;
} catch (RuntimeException exception){
exception.printStackTrace();
return ERR_EXCEPTION;
}
}