/** {@inheritDoc} */
public Object execute(CommandLine commandLine) throws Exception {
String project = commandLine.getValue(Options.PROJECT_OPTION);
String file = commandLine.getValue(Options.FILE_OPTION);
String propertiesOption = commandLine.getValue(Options.PROPERTIES_OPTION);
String[] properties = {};
if (propertiesOption != null) {
properties = StringUtils.split(propertiesOption, ',');
}
int offset = getOffset(commandLine);
// validate supplied fields.
ICompilationUnit src = JavaUtils.getCompilationUnit(project, file);
IType type = TypeUtils.getType(src, offset);
for (int ii = 0; ii < properties.length; ii++) {
if (!type.getField(properties[ii]).exists()) {
throw new RuntimeException(
Services.getMessage("field.not.found", properties[ii], type.getElementName()));
}
}
// check if constructor already exists.
IMethod method = null;
if (properties.length == 0) {
method = type.getMethod(type.getElementName(), null);
} else {
String[] fieldSigs = new String[properties.length];
for (int ii = 0; ii < properties.length; ii++) {
fieldSigs[ii] = type.getField(properties[ii]).getTypeSignature();
}
method = type.getMethod(type.getElementName(), fieldSigs);
}
if (method.exists()) {
throw new RuntimeException(
Services.getMessage(
"constructor.already.exists",
type.getElementName() + " (" + buildParams(type, properties) + ")"));
}
// find the sibling to insert before.
IJavaElement sibling = null;
IMethod[] methods = type.getMethods();
for (int ii = 0; ii < methods.length; ii++) {
if (methods[ii].isConstructor()) {
sibling = ii < methods.length - 1 ? methods[ii + 1] : null;
}
}
// insert before any other methods or inner classes if any.
if (sibling == null) {
if (methods.length > 0) {
sibling = methods[0];
} else {
IType[] types = type.getTypes();
sibling = types != null && types.length > 0 ? types[0] : null;
}
}
HashMap<String, Object> values = new HashMap<String, Object>();
values.put("type", type.getElementName());
boolean hasProperties = properties != null && properties.length > 0;
values.put("fields", hasProperties ? properties : null);
values.put("params", hasProperties ? buildParams(type, properties) : StringUtils.EMPTY);
PluginResources resources = (PluginResources) Services.getPluginResources(PluginResources.NAME);
String constructor = TemplateUtils.evaluate(resources, TEMPLATE, values);
Position position =
TypeUtils.getPosition(type, type.createMethod(constructor, sibling, false, null));
JavaUtils.format(
src, CodeFormatter.K_COMPILATION_UNIT, position.getOffset(), position.getLength());
return null;
}
