@Test(expected = IllegalArgumentException.class)
public void testReplaceMissingResource() {
final Group group = new Group("group");
group.replace(
Resource.create("/path", ResourceType.JS),
Arrays.asList(Resource.create("", ResourceType.JS)));
}
/**
* Creates a resource from a given resourceElement. It can be css, js. If resource tag name is
* group-ref, the method will start a recursive computation.
*
* @param resourceElement
* @param resources list of parsed resources where the parsed resource is added.
*/
private void parseResource(
final Element resourceElement,
final Collection<Resource> resources,
final Collection<Group> groups) {
ResourceType type = null;
final String tagName = resourceElement.getTagName();
final String uri = resourceElement.getTextContent();
if (TAG_JS.equals(tagName)) {
type = ResourceType.JS;
} else if (TAG_CSS.equals(tagName)) {
type = ResourceType.CSS;
} else if (TAG_GROUP_REF.equals(tagName)) {
// uri in this case is the group name
final Element groupElement = allGroupElements.get(uri);
resources.addAll(parseGroup(groupElement, groups));
}
if (type != null) {
final String minimizeAsString = resourceElement.getAttribute(ATTR_MINIMIZE);
final boolean minimize =
StringUtils.isEmpty(minimizeAsString)
? true
: Boolean.valueOf(resourceElement.getAttribute(ATTR_MINIMIZE));
final Resource resource = Resource.create(uri, type);
resource.setMinimize(minimize);
resources.add(resource);
}
}
/** {@inheritDoc} */
@Override
public void process(final Resource resource, final Reader reader, final Writer writer)
throws IOException {
final String content = IOUtils.toString(reader);
final AbstractLinter linter = enginePool.getObject();
try {
// TODO investigate why linter fails when trying to reuse the same instance twice
linter.setOptions(options).validate(content);
} catch (final LinterException e) {
onLinterException(e, resource);
} catch (final WroRuntimeException e) {
onException(e);
final String resourceUri =
resource == null ? StringUtils.EMPTY : "[" + resource.getUri() + "]";
LOG.warn(
"Exception while applying "
+ getClass().getSimpleName()
+ " processor on the "
+ resourceUri
+ " resource, no processing applied...",
e);
} finally {
// don't change the processed content no matter what happens.
writer.write(content);
reader.close();
writer.close();
enginePool.returnObject(linter);
}
}
@SuppressWarnings("unchecked")
@Test
public void testReplaceWithEmptyCollection() {
final Group group = new Group("group");
final Resource resource = Resource.create("/path", ResourceType.JS);
group.addResource(resource);
group.replace(resource, Collections.EMPTY_LIST);
Assert.assertTrue(group.getResources().isEmpty());
}
@Test
public void testResoruceOfTypeFound() {
final Group group = new Group("group");
final List<Resource> resources = new ArrayList<Resource>();
resources.add(Resource.create("/some.css", ResourceType.CSS));
group.setResources(resources);
Assert.assertEquals(true, group.hasResourcesOfType(ResourceType.CSS));
Assert.assertEquals(false, group.hasResourcesOfType(ResourceType.JS));
}
/**
* Check if the resource was changed from previous run. The implementation uses resource content
* digest (hash) to check for change.
*
* @param resource the {@link Resource} to check.
* @return true if the resource was changed.
*/
private boolean isChanged(final Resource resource, final String groupName) {
LOG.debug("Check change for resource {}", resource.getUri());
try {
final String uri = resource.getUri();
// using AtomicBoolean because we need to mutate this variable inside an anonymous class.
final AtomicBoolean changeDetected =
new AtomicBoolean(getResourceChangeDetector().checkChangeForGroup(uri, groupName));
if (!changeDetected.get() && resource.getType() == ResourceType.CSS) {
final Reader reader = new InputStreamReader(locatorFactory.locate(uri));
LOG.debug("Check @import directive from {}", resource);
createCssImportProcessor(changeDetected, groupName)
.process(resource, reader, new StringWriter());
}
return changeDetected.get();
} catch (final IOException e) {
LOG.debug(
"[FAIL] Cannot check {} resource (Exception message: {}). Assuming it is unchanged...",
resource,
e.getMessage());
return false;
}
}
/** {@inheritDoc} */
@Override
protected void doContribution(
final Group group, final ModelAndView modelAndView, final Map<String, Group> additionalGroups)
throws IOException {
String bundle = group.getName();
Map<String, Object> model = modelAndView.getModel();
StringBuilder buffer = new StringBuilder();
if (useCache()) {
buffer.append(script("/bundle/" + bundle + ".js?v=" + version));
} else {
List<Resource> candidates = group.getResources();
List<Resource> resources = new ArrayList<Resource>();
for (Resource resource : candidates) {
if (resource.getType() == ResourceType.JS) {
buffer.append(script(resource.getUri()));
resources.add(resource);
}
}
model.put(resourcesVarName(), resources);
}
// 2. Publish as a model attribute.
model.put(varName(), buffer.toString());
logger.trace("Publishing {}:\n{}", varName(), buffer);
}
@Test
public void testReplaceWithFewResources() {
final Group group = new Group("group");
final Resource resource = Resource.create("/static/*", ResourceType.JS);
resource.setMinimize(false);
group.addResource(resource);
group.replace(
resource,
Arrays.asList(
Resource.create("/static/one.js", ResourceType.JS),
Resource.create("/static/two.js", ResourceType.JS)));
Assert.assertEquals(2, group.getResources().size());
Assert.assertEquals(resource.isMinimize(), group.getResources().get(0).isMinimize());
}
/** {@inheritDoc} */
public void process(final Resource resource, final Reader reader, final Writer writer)
throws IOException {
final String content = IOUtils.toString(reader);
try {
writer.write(doProcess(content));
} catch (final WroRuntimeException e) {
onException(e);
writer.write(content);
final String resourceUri =
resource == null ? StringUtils.EMPTY : "[" + resource.getUri() + "]";
LOG.warn(
"Exception while applying lessCss processor on the "
+ resourceUri
+ " resource, no processing applied...",
e);
} finally {
reader.close();
writer.close();
}
}
