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package org.glassfish.jersey.server.wadl.internal;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Set;
import javax.ws.rs.FormParam;
import javax.ws.rs.ProcessingException;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.UriBuilder;
import javax.ws.rs.core.UriInfo;
import javax.xml.namespace.QName;
import org.glassfish.jersey.internal.Version;
import org.glassfish.jersey.server.internal.LocalizationMessages;
import org.glassfish.jersey.server.model.Parameter;
import org.glassfish.jersey.server.model.ResourceMethod;
import org.glassfish.jersey.server.wadl.WadlGenerator;
import com.sun.research.ws.wadl.Application;
import com.sun.research.ws.wadl.Doc;
import com.sun.research.ws.wadl.Param;
import com.sun.research.ws.wadl.ParamStyle;
import com.sun.research.ws.wadl.Representation;
import com.sun.research.ws.wadl.Request;
import com.sun.research.ws.wadl.Resource;
import com.sun.research.ws.wadl.Resources;
import com.sun.research.ws.wadl.Response;
/**
* This class implements the algorithm how the wadl is built for one or more {@link org.glassfish.jersey.server.model.Resource}
* classes. Wadl artifacts are created by a {@link org.glassfish.jersey.server.wadl.WadlGenerator}. Created on: Jun 18, 2008
*
* @author Marc Hadley
* @author Martin Grotzke (martin.grotzke at freiheit.com)
* @author Miroslav Fuksa
*/
public class WadlBuilder {
private final WadlGenerator _wadlGenerator;
private final UriInfo uriInfo;
private final boolean detailedWadl;
public WadlBuilder(WadlGenerator wadlGenerator, boolean detailedWadl, UriInfo uriInfo) {
this.detailedWadl = detailedWadl;
_wadlGenerator = wadlGenerator;
this.uriInfo = uriInfo;
}
/**
* Generate WADL for a set of resources.
*
* @param resources the set of resources.
* @return the JAXB WADL application bean.
*/
public ApplicationDescription generate(List resources) {
Application wadlApplication = _wadlGenerator.createApplication();
Resources wadlResources = _wadlGenerator.createResources();
// for each resource
for (org.glassfish.jersey.server.model.Resource r : resources) {
Resource wadlResource = generateResource(r, r.getPath());
if (wadlResource == null) {
continue;
}
wadlResources.getResource().add(wadlResource);
}
wadlApplication.getResources().add(wadlResources);
addVersion(wadlApplication);
addHint(wadlApplication);
// Build any external grammars
WadlGenerator.ExternalGrammarDefinition external =
_wadlGenerator.createExternalGrammar();
//
ApplicationDescription description = new ApplicationDescription(wadlApplication, external);
// Attach the data to the parts of the model
_wadlGenerator.attachTypes(description);
// Return the description of the application
return description;
}
/**
* Generate WADL for a resource.
*
* @param resource the resource
* @param description the overall application description so we can
* @return the JAXB WADL application bean
*/
public Application generate(
ApplicationDescription description,
org.glassfish.jersey.server.model.Resource resource) {
try {
Application wadlApplication = _wadlGenerator.createApplication();
Resources wadlResources = _wadlGenerator.createResources();
Resource wadlResource = generateResource(resource, null);
if (wadlResource == null) {
return null;
}
wadlResources.getResource().add(wadlResource);
wadlApplication.getResources().add(wadlResources);
addVersion(wadlApplication);
// Attach the data to the parts of the model
_wadlGenerator.attachTypes(description);
// Return the WADL
return wadlApplication;
} catch (Exception e) {
throw new ProcessingException(LocalizationMessages.ERROR_WADL_BUILDER_GENERATION_RESOURCE(resource), e);
}
}
private void addVersion(Application wadlApplication) {
// Include Jersey version as doc element with generatedBy attribute
Doc d = new Doc();
d.getOtherAttributes().put(new QName(WadlApplicationContextImpl.WADL_JERSEY_NAMESPACE, "generatedBy", "jersey"),
Version.getBuildId());
wadlApplication.getDoc().add(d);
}
private void addHint(Application wadlApplication) {
// TODO: this not-null check is here only because of unit tests
if (uriInfo != null) {
Doc d = new Doc();
String message;
if (detailedWadl) {
final String uriWithoutQueryParam = UriBuilder.fromUri(uriInfo.getRequestUri()).replaceQuery("").build()
.toString();
message = LocalizationMessages.WADL_DOC_EXTENDED_WADL(WadlUtils.DETAILED_WADL_QUERY_PARAM, uriWithoutQueryParam);
} else {
final String uriWithQueryParam = UriBuilder.fromUri(uriInfo.getRequestUri())
.queryParam(WadlUtils.DETAILED_WADL_QUERY_PARAM, "true").build().toString();
message = LocalizationMessages.WADL_DOC_SIMPLE_WADL(WadlUtils.DETAILED_WADL_QUERY_PARAM, uriWithQueryParam);
}
d.getOtherAttributes().put(new QName(WadlApplicationContextImpl.WADL_JERSEY_NAMESPACE, "hint", "jersey"), message);
wadlApplication.getDoc().add(d);
}
}
private com.sun.research.ws.wadl.Method generateMethod(
final org.glassfish.jersey.server.model.Resource parentResource,
final Map wadlResourceParams,
final org.glassfish.jersey.server.model.ResourceMethod resourceMethod) {
try {
if (!detailedWadl && resourceMethod.isExtended()) {
return null;
}
com.sun.research.ws.wadl.Method wadlMethod = _wadlGenerator.createMethod(parentResource, resourceMethod);
// generate the request part
Request wadlRequest = generateRequest(parentResource, resourceMethod, wadlResourceParams);
if (wadlRequest != null) {
wadlMethod.setRequest(wadlRequest);
}
// generate the response part
final List responses = generateResponses(parentResource, resourceMethod);
if (responses != null) {
wadlMethod.getResponse().addAll(responses);
}
return wadlMethod;
} catch (Exception e) {
throw new ProcessingException(
LocalizationMessages.ERROR_WADL_BUILDER_GENERATION_METHOD(resourceMethod, parentResource), e);
}
}
private Request generateRequest(org.glassfish.jersey.server.model.Resource parentResource,
final org.glassfish.jersey.server.model.ResourceMethod resourceMethod,
Map wadlResourceParams) {
try {
final List requestParams = new LinkedList<>(resourceMethod.getInvocable().getParameters());
// Adding handler instance parameters to the list of potential request parameters.
requestParams.addAll(resourceMethod.getInvocable().getHandler().getParameters());
if (requestParams.isEmpty()) {
return null;
}
Request wadlRequest = _wadlGenerator.createRequest(parentResource, resourceMethod);
processRequestParameters(parentResource, resourceMethod, wadlResourceParams, requestParams, wadlRequest);
if (wadlRequest.getRepresentation().size() + wadlRequest.getParam().size() == 0) {
return null;
} else {
return wadlRequest;
}
} catch (Exception e) {
throw new ProcessingException(LocalizationMessages.ERROR_WADL_BUILDER_GENERATION_REQUEST(
resourceMethod, parentResource), e);
}
}
/**
* Recursively processes provided request parameters and adds the resulting WADL information into the WADL request.
*/
private void processRequestParameters(final org.glassfish.jersey.server.model.Resource parentResource,
final ResourceMethod resourceMethod,
final Map wadlResourceParams,
final Collection requestParameters,
final Request wadlRequest) {
for (Parameter parameter : requestParameters) {
if (parameter.getSource() == Parameter.Source.ENTITY || parameter.getSource() == Parameter.Source.UNKNOWN) {
for (MediaType mediaType : resourceMethod.getConsumedTypes()) {
setRepresentationForMediaType(parentResource, resourceMethod, mediaType, wadlRequest);
}
} else if (parameter.getSourceAnnotation().annotationType() == FormParam.class) {
// Use application/x-www-form-urlencoded if no @Consumes
List supportedInputTypes = resourceMethod.getConsumedTypes();
if (supportedInputTypes.isEmpty()
|| (supportedInputTypes.size() == 1 && supportedInputTypes.get(0).isWildcardType())) {
supportedInputTypes = Collections.singletonList(MediaType.APPLICATION_FORM_URLENCODED_TYPE);
}
for (MediaType mediaType : supportedInputTypes) {
final Representation wadlRepresentation =
setRepresentationForMediaType(parentResource, resourceMethod, mediaType, wadlRequest);
if (getParamByName(wadlRepresentation.getParam(), parameter.getSourceName()) == null) {
final Param wadlParam = generateParam(parentResource, resourceMethod, parameter);
if (wadlParam != null) {
wadlRepresentation.getParam().add(wadlParam);
}
}
}
} else if ("org.glassfish.jersey.media.multipart.FormDataParam".equals(
parameter.getSourceAnnotation().annotationType().getName())) { // jersey-multipart support
// Use multipart/form-data if no @Consumes
List supportedInputTypes = resourceMethod.getConsumedTypes();
if (supportedInputTypes.isEmpty()
|| (supportedInputTypes.size() == 1 && supportedInputTypes.get(0).isWildcardType())) {
supportedInputTypes = Collections.singletonList(MediaType.MULTIPART_FORM_DATA_TYPE);
}
for (MediaType mediaType : supportedInputTypes) {
final Representation wadlRepresentation =
setRepresentationForMediaType(parentResource, resourceMethod, mediaType, wadlRequest);
if (getParamByName(wadlRepresentation.getParam(), parameter.getSourceName()) == null) {
final Param wadlParam = generateParam(parentResource, resourceMethod, parameter);
if (wadlParam != null) {
wadlRepresentation.getParam().add(wadlParam);
}
}
}
} else if (parameter instanceof Parameter.BeanParameter) {
processRequestParameters(parentResource, resourceMethod, wadlResourceParams,
((Parameter.BeanParameter) parameter).getParameters(), wadlRequest);
} else {
Param wadlParam = generateParam(parentResource, resourceMethod, parameter);
if (wadlParam == null) {
continue;
}
if (wadlParam.getStyle() == ParamStyle.TEMPLATE || wadlParam.getStyle() == ParamStyle.MATRIX) {
wadlResourceParams.put(wadlParam.getName(), wadlParam);
} else {
wadlRequest.getParam().add(wadlParam);
}
}
}
}
private Param getParamByName(final List params, final String name) {
for (Param param : params) {
if (param.getName().equals(name)) {
return param;
}
}
return null;
}
/**
* Create the wadl {@link Representation} for the specified {@link MediaType} if not yet existing for the wadl {@link Request}
* and return it.
*
* @param r the resource
* @param m the resource method
* @param mediaType an accepted media type of the resource method
* @param wadlRequest the wadl request the wadl representation is to be created for (if not yet existing).
* @return the wadl request representation for the specified {@link MediaType}.
*/
private Representation setRepresentationForMediaType(org.glassfish.jersey.server.model.Resource r,
final org.glassfish.jersey.server.model.ResourceMethod m,
MediaType mediaType,
Request wadlRequest) {
try {
Representation wadlRepresentation = getRepresentationByMediaType(wadlRequest.getRepresentation(), mediaType);
if (wadlRepresentation == null) {
wadlRepresentation = _wadlGenerator.createRequestRepresentation(r, m, mediaType);
wadlRequest.getRepresentation().add(wadlRepresentation);
}
return wadlRepresentation;
} catch (Exception e) {
throw new ProcessingException(LocalizationMessages.ERROR_WADL_BUILDER_GENERATION_REQUEST_MEDIA_TYPE(mediaType,
m, r), e);
}
}
private Representation getRepresentationByMediaType(
final List representations, MediaType mediaType) {
for (Representation representation : representations) {
if (mediaType.toString().equals(representation.getMediaType())) {
return representation;
}
}
return null;
}
private Param generateParam(final org.glassfish.jersey.server.model.Resource resource,
final org.glassfish.jersey.server.model.ResourceMethod method,
final Parameter param) {
try {
if (param.getSource() == Parameter.Source.ENTITY || param.getSource() == Parameter.Source.CONTEXT) {
return null;
}
return _wadlGenerator.createParam(resource, method, param);
} catch (Exception e) {
throw new ProcessingException(LocalizationMessages.ERROR_WADL_BUILDER_GENERATION_PARAM(param, resource, method), e);
}
}
private Resource generateResource(org.glassfish.jersey.server.model.Resource r, String path) {
return generateResource(r, path, Collections.emptySet());
}
private Resource generateResource(final org.glassfish.jersey.server.model.Resource resource, String path,
Set visitedResources) {
try {
if (!detailedWadl && resource.isExtended()) {
return null;
}
Resource wadlResource = _wadlGenerator.createResource(resource, path);
// prevent infinite recursion
if (visitedResources.contains(resource)) {
return wadlResource;
} else {
visitedResources = new HashSet<>(visitedResources);
visitedResources.add(resource);
}
// if the resource contains subresource locator create new resource for this locator and return it instead
// of this resource
final ResourceMethod locator = resource.getResourceLocator();
if (locator != null) {
try {
org.glassfish.jersey.server.model.Resource.Builder builder = org.glassfish.jersey.server.model.Resource
.builder(locator.getInvocable().getRawResponseType());
if (builder == null) {
// for example in the case the return type of the sub resource locator is Object
builder = org.glassfish.jersey.server.model.Resource.builder().path(resource.getPath());
}
org.glassfish.jersey.server.model.Resource subResource = builder.build();
Resource wadlSubResource = generateResource(subResource, resource.getPath(), visitedResources);
if (wadlSubResource == null) {
return null;
}
if (locator.isExtended()) {
wadlSubResource.getAny().add(WadlApplicationContextImpl.EXTENDED_ELEMENT);
}
for (Parameter param : locator.getInvocable().getParameters()) {
Param wadlParam = generateParam(resource, locator, param);
if (wadlParam != null && wadlParam.getStyle() == ParamStyle.TEMPLATE) {
wadlSubResource.getParam().add(wadlParam);
}
}
return wadlSubResource;
} catch (RuntimeException e) {
throw new ProcessingException(LocalizationMessages.ERROR_WADL_BUILDER_GENERATION_RESOURCE_LOCATOR(locator,
resource), e);
}
}
Map wadlResourceParams = new HashMap<>();
// for each resource method
for (org.glassfish.jersey.server.model.ResourceMethod method : resource.getResourceMethods()) {
if (!detailedWadl && method.isExtended()) {
continue;
}
com.sun.research.ws.wadl.Method wadlMethod = generateMethod(resource, wadlResourceParams, method);
wadlResource.getMethodOrResource().add(wadlMethod);
}
// add method parameters that are associated with the resource PATH template
for (Param wadlParam : wadlResourceParams.values()) {
wadlResource.getParam().add(wadlParam);
}
// for each sub-resource method
Map wadlSubResources = new HashMap<>();
Map> wadlSubResourcesParams = new HashMap<>();
for (org.glassfish.jersey.server.model.Resource childResource : resource.getChildResources()) {
Resource childWadlResource = generateResource(childResource, childResource.getPath(),
visitedResources);
if (childWadlResource == null) {
continue;
}
wadlResource.getMethodOrResource().add(childWadlResource);
}
return wadlResource;
} catch (Exception e) {
throw new ProcessingException(LocalizationMessages.ERROR_WADL_BUILDER_GENERATION_RESOURCE_PATH(resource, path), e);
}
}
private List generateResponses(org.glassfish.jersey.server.model.Resource r, final ResourceMethod m) {
try {
if (m.getInvocable().getRawResponseType() == void.class) {
return null;
}
return _wadlGenerator.createResponses(r, m);
} catch (Exception e) {
throw new ProcessingException(LocalizationMessages.ERROR_WADL_BUILDER_GENERATION_RESPONSE(m, r), e);
}
}
}
