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package org.glassfish.jersey.server.wadl.internal;

import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;

import javax.ws.rs.FormParam;
import javax.ws.rs.core.MediaType;

import javax.xml.namespace.QName;

import org.glassfish.jersey.internal.ProcessingException;
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 org.glassfish.jersey.server.wadl.internal.generators.WadlGeneratorJAXBGrammarGenerator;

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 (miroslav.fuksa at oracle.com) */ public class WadlBuilder { private WadlGenerator _wadlGenerator; public WadlBuilder() { this(new WadlGeneratorJAXBGrammarGenerator()); } public WadlBuilder(WadlGenerator wadlGenerator) { _wadlGenerator = wadlGenerator; } /** * 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()); wadlResources.getResource().add(wadlResource); } wadlApplication.getResources().add(wadlResources); addVersion(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); 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("http://jersey.java.net/", "generatedBy", "jersey"), Version.getBuildId()); wadlApplication.getDoc().add(0, d); } private com.sun.research.ws.wadl.Method generateMethod(org.glassfish.jersey.server.model.Resource r, final Map wadlResourceParams, final org.glassfish.jersey.server.model.ResourceMethod m) { try { com.sun.research.ws.wadl.Method wadlMethod = _wadlGenerator.createMethod(r, m); // generate the request part Request wadlRequest = generateRequest(r, m, wadlResourceParams); if (wadlRequest != null) { wadlMethod.setRequest(wadlRequest); } // generate the response part final List responses = generateResponses(r, m); if (responses != null) { wadlMethod.getResponse().addAll(responses); } return wadlMethod; } catch (Exception e) { throw new ProcessingException(LocalizationMessages.ERROR_WADL_BUILDER_GENERATION_METHOD(m, r), e); } } private Request generateRequest(org.glassfish.jersey.server.model.Resource r, final org.glassfish.jersey.server.model.ResourceMethod m, Map wadlResourceParams) { try { if (m.getInvocable().getParameters().isEmpty()) { return null; } Request wadlRequest = _wadlGenerator.createRequest(r, m); for (Parameter p : m.getInvocable().getParameters()) { if (p.getSource() == Parameter.Source.ENTITY) { for (MediaType mediaType : m.getConsumedTypes()) { setRepresentationForMediaType(r, m, mediaType, wadlRequest); } } else if (p.getSourceAnnotation().annotationType() == FormParam.class) { // Use application/x-www-form-urlencoded if no @Consumes List supportedInputTypes = m.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(r, m, mediaType, wadlRequest); if (getParamByName(wadlRepresentation.getParam(), p.getSourceName()) == null) { final Param wadlParam = generateParam(r, m, p); if (wadlParam != null) { wadlRepresentation.getParam().add(wadlParam); } } } } else if (p.getSourceAnnotation().annotationType().getName().equals("org.glassfish.jersey.media.multipart" + ".FormDataParam")) { // jersey-multipart support // Use multipart/form-data if no @Consumes List supportedInputTypes = m.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(r, m, mediaType, wadlRequest); if (getParamByName(wadlRepresentation.getParam(), p.getSourceName()) == null) { final Param wadlParam = generateParam(r, m, p); if (wadlParam != null) { wadlRepresentation.getParam().add(wadlParam); } } } } else { Param wadlParam = generateParam(r, m, p); if (wadlParam == null) { continue; } if (wadlParam.getStyle() == ParamStyle.TEMPLATE || wadlParam.getStyle() == ParamStyle.MATRIX) { wadlResourceParams.put(wadlParam.getName(), wadlParam); } else { wadlRequest.getParam().add(wadlParam); } } } 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(m, r), e); } } 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). * @author Martin Grotzke * @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(org.glassfish.jersey.server.model.Resource resource, 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 { 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); 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()) { 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); 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); } } }




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