public PrintStream getOut() {
UIOutput output = getOutput();
if (output != null) {
return output.out();
} else {
return System.out;
}
}
@Override
public Result execute(UIExecutionContext context) throws Exception {
UIContext uiContext = context.getUIContext();
JavaResource resource = (JavaResource) uiContext.getInitialSelection().get();
String name = named.getValue();
String fieldName = conversationFieldName.getValue();
String beginName = beginMethodName.getValue();
String endName = endMethodName.getValue();
Boolean overwriteValue = overwrite.getValue();
UIOutput output = uiContext.getProvider().getOutput();
if (resource.exists()) {
if (resource.getJavaSource().isClass()) {
JavaClass javaClass = (JavaClass) resource.getJavaSource();
if (javaClass.hasField(fieldName)
&& !javaClass.getField(fieldName).isType(Conversation.class)) {
if (overwriteValue) {
javaClass.removeField(javaClass.getField(fieldName));
} else {
return Results.fail("Field [" + fieldName + "] already exists.");
}
}
if (javaClass.hasMethodSignature(beginName)
&& (javaClass.getMethod(beginName).getParameters().size() == 0)) {
if (overwriteValue) {
javaClass.removeMethod(javaClass.getMethod(beginName));
} else {
return Results.fail("Method [" + beginName + "] exists.");
}
}
if (javaClass.hasMethodSignature(endName)
&& (javaClass.getMethod(endName).getParameters().size() == 0)) {
if (overwriteValue) {
javaClass.removeMethod(javaClass.getMethod(endName));
} else {
return Results.fail("Method [" + endName + "] exists.");
}
}
javaClass
.addField()
.setPrivate()
.setName(fieldName)
.setType(Conversation.class)
.addAnnotation(Inject.class);
Method<JavaClass> beginMethod =
javaClass.addMethod().setName(beginName).setReturnTypeVoid().setPublic();
if (Strings.isNullOrEmpty(name)) {
beginMethod.setBody(fieldName + ".begin();");
} else {
beginMethod.setBody(fieldName + ".begin(\"" + name + "\");");
}
if (timeout.getValue() != null) {
beginMethod.setBody(
beginMethod.getBody() + "\n" + fieldName + ".setTimeout(" + timeout + ");");
}
javaClass
.addMethod()
.setName(endName)
.setReturnTypeVoid()
.setPublic()
.setBody(fieldName + ".end();");
if (javaClass.hasSyntaxErrors()) {
output.err().println("Modified Java class contains syntax errors:");
for (SyntaxError error : javaClass.getSyntaxErrors()) {
output.err().print(error.getDescription());
}
}
resource.setContents(javaClass);
} else {
return Results.fail(
"Must operate on a Java Class file, not an ["
+ resource.getJavaSource().getSourceType()
+ "]");
}
}
return Results.success("Conversation block created");
}