void process(MessageContext synCtx) {
if (log.isDebugEnabled()) {
log.debug(
"Processing message with ID: "
+ synCtx.getMessageID()
+ " through the "
+ "API: "
+ name);
}
synCtx.setProperty(RESTConstants.SYNAPSE_REST_API, getName());
synCtx.setProperty(RESTConstants.SYNAPSE_REST_API_VERSION, versionStrategy.getVersion());
synCtx.setProperty(RESTConstants.REST_API_CONTEXT, context);
// Remove the API context part from the REST_URL_POSTFIX
String restURLPostfix =
(String)
((Axis2MessageContext) synCtx)
.getAxis2MessageContext()
.getProperty(NhttpConstants.REST_URL_POSTFIX);
if (restURLPostfix != null) {
if (!restURLPostfix.startsWith("/")) {
restURLPostfix = "/" + restURLPostfix;
}
if (restURLPostfix.startsWith(context)) {
restURLPostfix = restURLPostfix.substring(context.length());
if (versionStrategy instanceof URLBasedVersionStrategy) {
String version = versionStrategy.getVersion();
if (restURLPostfix.startsWith(version)) {
restURLPostfix = restURLPostfix.substring(version.length());
} else if (restURLPostfix.startsWith("/" + version)) {
restURLPostfix = restURLPostfix.substring(version.length() + 1);
}
}
((Axis2MessageContext) synCtx)
.getAxis2MessageContext()
.setProperty(NhttpConstants.REST_URL_POSTFIX, restURLPostfix);
}
}
for (Handler handler : handlers) {
if (log.isDebugEnabled()) {
log.debug(
"Processing message with ID: "
+ synCtx.getMessageID()
+ " through "
+ "handler: "
+ handler.getClass().getName());
}
boolean proceed;
if (synCtx.isResponse()) {
proceed = handler.handleResponse(synCtx);
} else {
proceed = handler.handleRequest(synCtx);
}
if (!proceed) {
return;
}
}
if (synCtx.isResponse()) {
String resourceName = (String) synCtx.getProperty(RESTConstants.SYNAPSE_RESOURCE);
if (resourceName != null) {
Resource resource = resources.get(resourceName);
if (resource != null) {
resource.process(synCtx);
}
} else if (log.isDebugEnabled()) {
log.debug("No resource information on the response: " + synCtx.getMessageID());
}
return;
}
String path = RESTUtils.getFullRequestPath(synCtx);
String subPath;
if (versionStrategy.getVersionType().equals(VersionStrategyFactory.TYPE_URL)) {
// for URL based
// request --> http://{host:port}/context/version/path/to/resource
subPath = path.substring(context.length() + versionStrategy.getVersion().length() + 1);
} else {
subPath = path.substring(context.length());
}
if ("".equals(subPath)) {
subPath = "/";
}
synCtx.setProperty(RESTConstants.REST_SUB_REQUEST_PATH, subPath);
org.apache.axis2.context.MessageContext msgCtx =
((Axis2MessageContext) synCtx).getAxis2MessageContext();
String hostHeader = getHostHeader(msgCtx);
if (hostHeader != null) {
synCtx.setProperty(
RESTConstants.REST_URL_PREFIX, msgCtx.getIncomingTransportName() + "://" + hostHeader);
}
Set<Resource> acceptableResources = new HashSet<Resource>();
for (Resource r : resources.values()) {
if (r.canProcess(synCtx)) {
acceptableResources.add(r);
}
}
boolean processed = false;
if (!acceptableResources.isEmpty()) {
for (RESTDispatcher dispatcher : RESTUtils.getDispatchers()) {
Resource resource = dispatcher.findResource(synCtx, acceptableResources);
if (resource != null) {
resource.process(synCtx);
processed = true;
break;
}
}
}
if (!processed) {
if (log.isDebugEnabled()) {
log.debug("No matching resource was found for the request: " + synCtx.getMessageID());
}
Mediator sequence = synCtx.getSequence(RESTConstants.NO_MATCHING_RESOURCE_HANDLER);
if (sequence != null) {
sequence.mediate(synCtx);
}
}
}
public VerbInfoDTO findMatchingVerb(MessageContext synCtx)
throws ResourceNotFoundException, APISecurityException {
VerbInfoDTO verb = null;
// This function is used by more than one handler. If on one execution of this function, it has
// found and placed
// the matching verb in the cache, the same can be re-used from all handlers since all handlers
// share the same
// MessageContext. The API_RESOURCE_CACHE_KEY property will be set in the MessageContext to
// indicate that the
// verb has been put into the cache.
String resourceCacheKey = (String) synCtx.getProperty(APIConstants.API_RESOURCE_CACHE_KEY);
if (resourceCacheKey != null) {
verb = (VerbInfoDTO) getResourceCache().get(resourceCacheKey);
// Cache hit
if (verb != null) {
if (log.isDebugEnabled()) {
log.debug("Found resource in Cache for key: ".concat(resourceCacheKey));
}
return verb;
}
if (log.isDebugEnabled()) {
log.debug("Resource not found in cache for key: ".concat(resourceCacheKey));
}
}
String resourceString = (String) synCtx.getProperty(APIConstants.API_ELECTED_RESOURCE);
String apiContext = (String) synCtx.getProperty(RESTConstants.REST_API_CONTEXT);
String apiVersion = (String) synCtx.getProperty(RESTConstants.SYNAPSE_REST_API_VERSION);
String fullRequestPath = (String) synCtx.getProperty(RESTConstants.REST_FULL_REQUEST_PATH);
String apiName = (String) synCtx.getProperty(RESTConstants.SYNAPSE_REST_API);
String requestPath = Utils.getRequestPath(synCtx, fullRequestPath, apiContext, apiVersion);
if ("".equals(requestPath)) {
requestPath = "/";
}
if (log.isDebugEnabled()) {
log.debug("Setting REST_SUB_REQUEST_PATH in msg context: ".concat(requestPath));
}
synCtx.setProperty(RESTConstants.REST_SUB_REQUEST_PATH, requestPath);
String httpMethod =
(String)
((Axis2MessageContext) synCtx)
.getAxis2MessageContext()
.getProperty(Constants.Configuration.HTTP_METHOD);
if (resourceString == null) {
API selectedApi = synCtx.getConfiguration().getAPI(apiName);
Resource selectedResource = null;
if (selectedApi != null) {
Resource[] selectedAPIResources = selectedApi.getResources();
Set<Resource> acceptableResources = new HashSet<Resource>();
for (Resource resource : selectedAPIResources) {
// If the requesting method is OPTIONS or if the Resource contains the requesting method
if (RESTConstants.METHOD_OPTIONS.equals(httpMethod)
|| (resource.getMethods() != null
&& Arrays.asList(resource.getMethods()).contains(httpMethod))) {
acceptableResources.add(resource);
}
}
if (acceptableResources.size() > 0) {
for (RESTDispatcher dispatcher : RESTUtils.getDispatchers()) {
Resource resource = dispatcher.findResource(synCtx, acceptableResources);
if (resource != null && Arrays.asList(resource.getMethods()).contains(httpMethod)) {
selectedResource = resource;
break;
}
}
}
}
if (selectedResource == null) {
// No matching resource found.
String msg = "Could not find matching resource for " + requestPath;
log.error(msg);
throw new ResourceNotFoundException(msg);
}
resourceString = selectedResource.getDispatcherHelper().getString();
resourceCacheKey =
APIUtil.getResourceInfoDTOCacheKey(apiContext, apiVersion, resourceString, httpMethod);
if (log.isDebugEnabled()) {
log.debug("Selected Resource: ".concat(resourceString));
}
// Set the elected resource
synCtx.setProperty(APIConstants.API_ELECTED_RESOURCE, resourceString);
}
verb = (VerbInfoDTO) getResourceCache().get(resourceCacheKey);
// Cache hit
if (verb != null) {
if (log.isDebugEnabled()) {
log.debug("Got Resource from cache for key: ".concat(resourceCacheKey));
}
// Set cache key in the message context so that it can be used by the subsequent handlers.
synCtx.setProperty(APIConstants.API_RESOURCE_CACHE_KEY, resourceCacheKey);
return verb;
}
if (log.isDebugEnabled()) {
log.debug("Cache miss for Resource for key: ".concat(resourceCacheKey));
}
String apiCacheKey = APIUtil.getAPIInfoDTOCacheKey(apiContext, apiVersion);
APIInfoDTO apiInfoDTO = null;
apiInfoDTO = (APIInfoDTO) getResourceCache().get(apiCacheKey);
// Cache miss
if (apiInfoDTO == null) {
if (log.isDebugEnabled()) {
log.debug("Could not find API object in cache for key: ".concat(apiCacheKey));
}
apiInfoDTO = doGetAPIInfo(apiContext, apiVersion);
getResourceCache().put(apiCacheKey, apiInfoDTO);
}
if (apiInfoDTO.getResources() != null) {
for (ResourceInfoDTO resourceInfoDTO : apiInfoDTO.getResources()) {
if ((resourceString.trim()).equalsIgnoreCase(resourceInfoDTO.getUrlPattern().trim())) {
for (VerbInfoDTO verbDTO : resourceInfoDTO.getHttpVerbs()) {
if (verbDTO.getHttpVerb().equals(httpMethod)) {
if (log.isDebugEnabled()) {
log.debug("Putting resource object in cache with key: ".concat(resourceCacheKey));
}
verbDTO.setRequestKey(resourceCacheKey);
// Store verb in cache
getResourceCache().put(resourceCacheKey, verbDTO);
// Set cache key in the message context so that it can be used by the subsequent
// handlers.
synCtx.setProperty(APIConstants.API_RESOURCE_CACHE_KEY, resourceCacheKey);
return verbDTO;
}
}
}
}
}
return null;
}