public void generateQuery(Feed feed) {
try {
JClass transformedType = getTransformedType(feed);
if (transformedType == null) {
return;
}
JDefinedClass cls =
pkg._class(JMod.PUBLIC | JMod.FINAL, String.format("%sQuery", feed.getName()));
cls._extends(parent.narrow(transformedType));
if (feed.getTitle() != null) {
cls.javadoc().add(String.format("<p>%s</p>", feed.getTitle()));
}
addResourcePath(cls, feed);
addResultTypeMethod(model, cls, transformedType);
addConstructor(cls);
JDefinedClass bldrCls = addBuilderCls(feed, cls);
cls.method(JMod.PUBLIC | JMod.STATIC | JMod.FINAL, bldrCls, "builder")
.body()
._return(JExpr._new(bldrCls));
JMethod cpyMthd = cls.method(JMod.PROTECTED | JMod.FINAL, cls, "copy");
JVar cpyParam = cpyMthd.param(immutableMap.narrow(String.class, Object.class), "params");
cpyMthd.body()._return(JExpr._new(cls).arg(cpyParam));
} catch (Exception e) {
throw new IllegalStateException(e);
}
}
private void addResourcePath(JDefinedClass cls, Feed feed) {
JFieldVar field = cls.field(privateStaticFinal, String.class, "RESOURCE_PATH");
field.init(JExpr.lit(feed.getHref()));
JMethod method = cls.method(JMod.PROTECTED | JMod.FINAL, String.class, "resourcePath");
method.annotate(Override.class);
method.body()._return(field);
}
private JDefinedClass addBuilderCls(Feed feed, JDefinedClass cls)
throws JClassAlreadyExistsException, ClassNotFoundException {
JDefinedClass bldrCls = cls._class(JMod.PUBLIC | JMod.STATIC | JMod.FINAL, "Builder");
JVar paramBuilder =
bldrCls
.field(JMod.PRIVATE | JMod.FINAL, immutableMapBldr, "params")
.init(immutableMap.staticInvoke("builder"));
for (Filter filter : feed.getFilters().getFilter()) {
if (!Boolean.TRUE.equals(filter.isDeprecated())) {
addWithersFor(filter, bldrCls, paramBuilder);
}
}
if (feed.getMixins() != null && feed.getMixins().getMixin() != null) {
JDefinedClass mixinEnum = getMixinEnum(feed);
for (Mixin mixin : feed.getMixins().getMixin()) {
String mixinName = mixin.getName().toUpperCase().replace(' ', '_');
JEnumConstant mixinCnst = mixinEnum.enumConstant(mixinName);
mixinCnst.arg(JExpr.lit(mixin.getName().replace(' ', '+')));
}
JFieldVar field = cls.field(privateStaticFinal, String.class, "MIXIN");
field.init(JExpr.lit("mixin"));
JMethod iterWither = bldrCls.method(JMod.PUBLIC, bldrCls, "withMixins");
JVar param = iterWither.param(iterable(mixinEnum), "mixins");
JBlock mthdBody = iterWither.body();
mthdBody.add(
paramBuilder
.invoke("put")
.arg(field)
.arg(immutableList.staticInvoke("copyOf").arg(param)));
mthdBody._return(JExpr._this());
JMethod varArgWither = bldrCls.method(JMod.PUBLIC, bldrCls, "withMixins");
param = varArgWither.varParam(mixinEnum, "mixins");
varArgWither
.body()
._return(JExpr.invoke(iterWither).arg(immutableList.staticInvoke("copyOf").arg(param)));
}
JMethod bldMthd = bldrCls.method(JMod.PUBLIC, cls, "build");
bldMthd.body()._return(JExpr._new(cls).arg(paramBuilder.invoke("build")));
// TODO: add sorts
return bldrCls;
}
private JDefinedClass getMixinEnum(Feed feed) throws JClassAlreadyExistsException {
String enumName = camel(feed.getName(), true) + "Mixin";
if (pkg.isDefined(enumName)) {
return pkg._getClass(enumName);
}
JDefinedClass valueEnum = pkg._enum(enumName);
JFieldVar valField = valueEnum.field(JMod.PRIVATE | JMod.FINAL, String.class, "value");
JMethod ctor = valueEnum.constructor(JMod.PRIVATE);
JVar param = ctor.param(String.class, "val");
ctor.body().assign(valField, param);
JMethod toString = valueEnum.method(JMod.PUBLIC, String.class, "toString");
toString.annotate(Override.class);
toString.body()._return(valField);
return valueEnum;
}
private JClass getTransformedType(Feed feed) {
Class<?> cls = null;
String name = feed.getName();
if (name.equals("Versions")) {
cls = Version.class;
return model.ref(cls);
}
if (name.equals("Groups")) {
cls = GroupBody.class;
return model.ref(cls);
}
cls = tryLoadClass(MODEL_PKG + name);
if (cls == null) { // attempt in possible naive singular.
cls = tryLoadClass(MODEL_PKG + name.substring(0, name.length() - 1));
}
if (cls == null) {
cls = Object.class;
}
return model.ref(cls);
}