/**
* I think in the basic framework this method is never called explicitely, because processing is
* done implicitly by the render
*/
@Override
public void process(
Processor processor, Parameters blockParameters, Parameters frameworkParameters)
throws FrameworkException {
HttpServletRequest request = frameworkParameters.get(Parameter.REQUEST);
State state = State.getState(request);
state.startBlock(frameworkParameters, null);
setBlockParametersForProcess(state, blockParameters);
processor.process(blockParameters);
}
@Override
public Block getRenderingBlock(Parameters frameworkParameters) {
HttpServletRequest request = frameworkParameters.get(Parameter.REQUEST);
State state = State.getState(request);
if (state.isRendering()) {
return state.getBlock();
} else {
return null;
}
}
@Override
public String getProcessUrl(
String path, Map<String, ?> parameters, Parameters frameworkParameters, boolean escapeAmps)
throws FrameworkException {
HttpServletRequest request =
BasicUrlConverter.getUserRequest(frameworkParameters.get(Parameter.REQUEST));
State state = State.getState(request);
frameworkParameters.set(ACTION, state.getId());
Url url = urlConverter.getProcessUrl(path, parameters, frameworkParameters, escapeAmps);
if (url == Url.NOT) {
log.debug("Fall back url");
return fallbackConverter
.getProcessUrl(path, parameters, frameworkParameters, escapeAmps)
.getUrl();
} else {
log.debug("Url converter url " + url);
return url.getUrl();
}
}
@SuppressWarnings("unchecked")
protected void setBlockParametersForRender(State state, Parameters blockParameters) {
ServletRequest request = state.getRequest();
String prefix = getPrefix(state);
log.debug("prefix " + prefix);
blockParameters.setAutoCasting(true);
for (Map.Entry<String, String[]> entry :
((Map<String, String[]>) request.getParameterMap()).entrySet()) {
String key = entry.getKey();
if (key.startsWith(prefix)) {
log.trace("setting" + entry);
blockParameters.setIfDefined(key.substring(prefix.length()), entry.getValue());
}
}
if (log.isDebugEnabled()) {
log.debug("Set " + blockParameters);
}
}
protected String getPrefix(final State state) {
// return "_" + renderer.getBlock().getComponent().getName() + "_" +
// renderer.getBlock().getName() + "_" + count + "_";
return state.getId() + ":";
}
/**
* Basic Framework implicitely also processes, i'm not sure if we should require any framework to
* do that (perhaps we could say, that the render method must process, if that is necessary, and
* not yet done).
*/
@Override
public void render(
Renderer renderer,
Parameters blockParameters,
Parameters frameworkParameters,
Writer w,
WindowState windowState)
throws FrameworkException {
ServletRequest request = frameworkParameters.get(Parameter.REQUEST);
if (request == null) {
throw new IllegalArgumentException("No request object given");
}
State state = State.getState(request);
if (state
.isRendering()) { // mm:component used during rending of a component, that's fine, but use a
// new State.
state = new State(request);
log.debug("Alreadying rendering, taking a new state for sub-block-rendering: " + state);
}
log.debug("Rendering " + renderer.getBlock() + " " + renderer);
Object prevHints = request.getAttribute(RenderHints.KEY);
try {
request.setAttribute(COMPONENT_CLASS_KEY, getComponentClass());
request.setAttribute(COMPONENT_CURRENTUSER_KEY, getUserNode(frameworkParameters));
Renderer actualRenderer = state.startBlock(frameworkParameters, renderer);
if (!actualRenderer.equals(renderer)) {
Parameters newBlockParameters = actualRenderer.getBlock().createParameters();
newBlockParameters.setAllIfDefined(blockParameters);
blockParameters = newBlockParameters;
}
state.setAction(request.getParameter(ACTION.getName()));
if (state.needsProcess()) {
log.service("Performing action on " + actualRenderer.getBlock());
Processor processor = actualRenderer.getBlock().getProcessor();
state.process(processor);
log.service("Processing " + actualRenderer.getBlock() + " " + processor);
setBlockParametersForProcess(state, blockParameters);
processor.process(blockParameters);
state.endProcess();
}
state.render(actualRenderer);
setBlockParametersForRender(state, blockParameters);
RenderHints hints =
new RenderHints(
actualRenderer,
windowState,
state.getId(),
getComponentClass(),
RenderHints.Mode.NORMAL);
request.setAttribute(RenderHints.KEY, hints);
actualRenderer.render(blockParameters, w, hints);
request.setAttribute("org.mmbase.framework.hints", hints);
} catch (FrameworkException fe) {
log.debug(fe);
URI uri = renderer.getUri();
Renderer error =
new ErrorRenderer(
renderer.getType(),
renderer.getBlock(),
(uri != null) ? uri.toString() : null,
500,
fe);
RenderHints hints =
new RenderHints(
error, windowState, state.getId(), getComponentClass(), RenderHints.Mode.NORMAL);
error.render(blockParameters, w, hints);
} finally {
request.setAttribute(RenderHints.KEY, prevHints);
state.endBlock();
}
}
/** @todo */
protected void setBlockParametersForProcess(State state, Parameters blockParameters) {
ServletRequest request = state.getRequest();
for (Map.Entry<String, ?> entry : blockParameters.toMap().entrySet()) {
request.setAttribute(entry.getKey(), entry.getValue());
}
}
