Examples with APIIdentifier org.wso2.carbon.apimgt.api.model.APIIdentifier used on opensource projects

Example 16 with APIIdentifier

use of org.wso2.carbon.apimgt.api.model.APIIdentifier in project carbon-apimgt by wso2.

the class RegistryPersistenceImpl method saveOASDefinition.

@Override
public void saveOASDefinition(Organization org, String apiId, String apiDefinition) throws OASPersistenceException {
    boolean isTenantFlowStarted = false;
    try {
        RegistryHolder holder = getRegistry(org.getName());
        Registry registry = holder.getRegistry();
        isTenantFlowStarted = holder.isTenantFlowStarted();
        GenericArtifactManager artifactManager = RegistryPersistenceUtil.getArtifactManager(registry, APIConstants.API_KEY);
        if (artifactManager == null) {
            String errorMessage = "Failed to retrieve artifact manager when deleting API " + apiId;
            log.error(errorMessage);
            throw new OASPersistenceException(errorMessage);
        }
        GenericArtifact apiArtifact = artifactManager.getGenericArtifact(apiId);
        String apiProviderName = apiArtifact.getAttribute(APIConstants.API_OVERVIEW_PROVIDER);
        String apiName = apiArtifact.getAttribute(APIConstants.API_OVERVIEW_NAME);
        String apiVersion = apiArtifact.getAttribute(APIConstants.API_OVERVIEW_VERSION);
        String visibleRoles = apiArtifact.getAttribute(APIConstants.API_OVERVIEW_VISIBLE_ROLES);
        String visibility = apiArtifact.getAttribute(APIConstants.API_OVERVIEW_VISIBILITY);
        String resourcePath = RegistryPersistenceUtil.getOpenAPIDefinitionFilePath(apiName, apiVersion, apiProviderName);
        resourcePath = resourcePath + APIConstants.API_OAS_DEFINITION_RESOURCE_NAME;
        Resource resource;
        if (!registry.resourceExists(resourcePath)) {
            resource = registry.newResource();
        } else {
            resource = registry.get(resourcePath);
        }
        resource.setContent(apiDefinition);
        resource.setMediaType("application/json");
        registry.put(resourcePath, resource);
        String[] visibleRolesArr = null;
        if (visibleRoles != null) {
            visibleRolesArr = visibleRoles.split(",");
        }
        // Need to set anonymous if the visibility is public
        RegistryPersistenceUtil.clearResourcePermissions(resourcePath, new APIIdentifier(apiProviderName, apiName, apiVersion), ((UserRegistry) registry).getTenantId());
        RegistryPersistenceUtil.setResourcePermissions(apiProviderName, visibility, visibleRolesArr, resourcePath);
    } catch (RegistryException | APIPersistenceException | APIManagementException e) {
        throw new OASPersistenceException("Error while adding OSA Definition for " + apiId, e);
    } finally {
        if (isTenantFlowStarted) {
            PrivilegedCarbonContext.endTenantFlow();
        }
    }
}

Example 17 with APIIdentifier

use of org.wso2.carbon.apimgt.api.model.APIIdentifier in project carbon-apimgt by wso2.

the class RegistryPersistenceImpl method addAPIRevision.

@Override
public String addAPIRevision(Organization org, String apiUUID, int revisionId) throws APIPersistenceException {
    String revisionUUID;
    boolean transactionCommitted = false;
    Registry registry = null;
    boolean tenantFlowStarted = false;
    try {
        RegistryHolder holder = getRegistry(org.getName());
        registry = holder.getRegistry();
        tenantFlowStarted = holder.isTenantFlowStarted();
        registry.beginTransaction();
        GenericArtifactManager artifactManager = RegistryPersistenceUtil.getArtifactManager(registry, APIConstants.API_KEY);
        GenericArtifact apiArtifact = artifactManager.getGenericArtifact(apiUUID);
        if (apiArtifact != null) {
            API api = RegistryPersistenceUtil.getApiForPublishing(registry, apiArtifact);
            APIIdentifier apiId = api.getId();
            String apiPath = RegistryPersistenceUtil.getAPIPath(apiId);
            int prependIndex = apiPath.lastIndexOf("/api");
            String apiSourcePath = apiPath.substring(0, prependIndex);
            String revisionTargetPath = RegistryPersistenceUtil.getRevisionPath(apiId.getUUID(), revisionId);
            if (registry.resourceExists(revisionTargetPath)) {
                throw new APIManagementException("API revision already exists with id: " + revisionId, ExceptionCodes.from(ExceptionCodes.EXISTING_API_REVISION_FOUND, String.valueOf(revisionId)));
            }
            registry.copy(apiSourcePath, revisionTargetPath);
            Resource apiRevisionArtifact = registry.get(revisionTargetPath + "api");
            registry.commitTransaction();
            transactionCommitted = true;
            if (log.isDebugEnabled()) {
                String logMessage = "Revision for API Name: " + apiId.getApiName() + ", API Version " + apiId.getVersion() + " created";
                log.debug(logMessage);
            }
            revisionUUID = apiRevisionArtifact.getUUID();
        } else {
            String msg = "Failed to get API. API artifact corresponding to artifactId " + apiUUID + " does not exist";
            throw new APIMgtResourceNotFoundException(msg);
        }
    } catch (RegistryException e) {
        try {
            registry.rollbackTransaction();
        } catch (RegistryException re) {
            // Throwing an error here would mask the original exception
            log.error("Error while rolling back the transaction for API Revision create for API: " + apiUUID, re);
        }
        throw new APIPersistenceException("Error while performing registry transaction operation", e);
    } catch (APIManagementException e) {
        throw new APIPersistenceException("Error while creating API Revision", e);
    } finally {
        try {
            if (tenantFlowStarted) {
                RegistryPersistenceUtil.endTenantFlow();
            }
            if (!transactionCommitted) {
                registry.rollbackTransaction();
            }
        } catch (RegistryException ex) {
            throw new APIPersistenceException("Error while rolling back the transaction for API Revision create for API: " + apiUUID, ex);
        }
    }
    return revisionUUID;
}

Example 18 with APIIdentifier

use of org.wso2.carbon.apimgt.api.model.APIIdentifier in project carbon-apimgt by wso2.

the class RegistryPersistenceImpl method deleteAPI.

@Override
public void deleteAPI(Organization org, String apiId) throws APIPersistenceException {
    boolean transactionCommitted = false;
    boolean tenantFlowStarted = false;
    Registry registry = null;
    try {
        String tenantDomain = org.getName();
        RegistryHolder holder = getRegistry(tenantDomain);
        registry = holder.getRegistry();
        tenantFlowStarted = holder.isTenantFlowStarted();
        registry.beginTransaction();
        GovernanceUtils.loadGovernanceArtifacts((UserRegistry) registry);
        GenericArtifactManager artifactManager = RegistryPersistenceUtil.getArtifactManager(registry, APIConstants.API_KEY);
        if (artifactManager == null) {
            String errorMessage = "Failed to retrieve artifact manager when deleting API " + apiId;
            log.error(errorMessage);
            throw new APIPersistenceException(errorMessage);
        }
        GenericArtifact apiArtifact = artifactManager.getGenericArtifact(apiId);
        APIIdentifier identifier = new APIIdentifier(apiArtifact.getAttribute(APIConstants.API_OVERVIEW_PROVIDER), apiArtifact.getAttribute(APIConstants.API_OVERVIEW_NAME), apiArtifact.getAttribute(APIConstants.API_OVERVIEW_VERSION));
        // Delete the dependencies associated  with the api artifact
        GovernanceArtifact[] dependenciesArray = apiArtifact.getDependencies();
        if (dependenciesArray.length > 0) {
            for (GovernanceArtifact artifact : dependenciesArray) {
                registry.delete(artifact.getPath());
            }
        }
        artifactManager.removeGenericArtifact(apiArtifact);
        String path = APIConstants.API_ROOT_LOCATION + RegistryConstants.PATH_SEPARATOR + identifier.getProviderName() + RegistryConstants.PATH_SEPARATOR + identifier.getApiName() + RegistryConstants.PATH_SEPARATOR + identifier.getVersion();
        Resource apiResource = registry.get(path);
        String artifactId = apiResource.getUUID();
        artifactManager.removeGenericArtifact(artifactId);
        String thumbPath = RegistryPersistenceUtil.getIconPath(identifier);
        if (registry.resourceExists(thumbPath)) {
            registry.delete(thumbPath);
        }
        String wsdlArchivePath = RegistryPersistenceUtil.getWsdlArchivePath(identifier);
        if (registry.resourceExists(wsdlArchivePath)) {
            registry.delete(wsdlArchivePath);
        }
        /*Remove API Definition Resource - swagger*/
        String apiDefinitionFilePath = APIConstants.API_DOC_LOCATION + RegistryConstants.PATH_SEPARATOR + identifier.getApiName() + '-' + identifier.getVersion() + '-' + identifier.getProviderName();
        if (registry.resourceExists(apiDefinitionFilePath)) {
            registry.delete(apiDefinitionFilePath);
        }
        /*remove empty directories*/
        String apiCollectionPath = APIConstants.API_ROOT_LOCATION + RegistryConstants.PATH_SEPARATOR + identifier.getProviderName() + RegistryConstants.PATH_SEPARATOR + identifier.getApiName();
        if (registry.resourceExists(apiCollectionPath)) {
            Resource apiCollection = registry.get(apiCollectionPath);
            CollectionImpl collection = (CollectionImpl) apiCollection;
            // if there is no other versions of apis delete the directory of the api
            if (collection.getChildCount() == 0) {
                if (log.isDebugEnabled()) {
                    log.debug("No more versions of the API found, removing API collection from registry");
                }
                registry.delete(apiCollectionPath);
            }
        }
        String apiProviderPath = APIConstants.API_ROOT_LOCATION + RegistryConstants.PATH_SEPARATOR + identifier.getProviderName();
        if (registry.resourceExists(apiProviderPath)) {
            Resource providerCollection = registry.get(apiProviderPath);
            CollectionImpl collection = (CollectionImpl) providerCollection;
            // if there is no api for given provider delete the provider directory
            if (collection.getChildCount() == 0) {
                if (log.isDebugEnabled()) {
                    log.debug("No more APIs from the provider " + identifier.getProviderName() + " found. " + "Removing provider collection from registry");
                }
                registry.delete(apiProviderPath);
            }
        }
        registry.commitTransaction();
        transactionCommitted = true;
    } catch (RegistryException e) {
        throw new APIPersistenceException("Failed to remove the API : " + apiId, e);
    } finally {
        if (tenantFlowStarted) {
            RegistryPersistenceUtil.endTenantFlow();
        }
        try {
            if (!transactionCommitted) {
                registry.rollbackTransaction();
            }
        } catch (RegistryException ex) {
            throw new APIPersistenceException("Error occurred while rolling back the transaction. ", ex);
        }
    }
}

Example 19 with APIIdentifier

use of org.wso2.carbon.apimgt.api.model.APIIdentifier in project carbon-apimgt by wso2.

the class RegistryPersistenceUtil method getAPI.

/**
 * This Method is different from getAPI method, as this one returns
 * URLTemplates without aggregating duplicates. This is to be used for building synapse config.
 *
 * @param artifact
 * @param registry
 * @return API
 * @throws org.wso2.carbon.apimgt.api.APIManagementException
 */
public static API getAPI(GovernanceArtifact artifact, Registry registry) throws APIManagementException {
    API api;
    try {
        String providerName = artifact.getAttribute(APIConstants.API_OVERVIEW_PROVIDER);
        String apiName = artifact.getAttribute(APIConstants.API_OVERVIEW_NAME);
        String apiVersion = artifact.getAttribute(APIConstants.API_OVERVIEW_VERSION);
        APIIdentifier apiIdentifier = new APIIdentifier(providerName, apiName, apiVersion, artifact.getId());
        api = new API(apiIdentifier);
        // set uuid
        api.setUuid(artifact.getId());
        // set rating
        String artifactPath = GovernanceUtils.getArtifactPath(registry, artifact.getId());
        // String artifactPath = APIConstants.API_ROOT_LOCATION + RegistryConstants.PATH_SEPARATOR
        // + RegistryPersistenceUtil.replaceEmailDomain(api.getId().getProviderName())
        // + RegistryConstants.PATH_SEPARATOR + api.getId().getName() + RegistryConstants.PATH_SEPARATOR
        // + api.getId().getVersion() + RegistryConstants.PATH_SEPARATOR + APIConstants.API_KEY;
        Resource apiResource = registry.get(artifactPath);
        api = setResourceProperties(api, apiResource, artifactPath);
        // set description
        api.setDescription(artifact.getAttribute(APIConstants.API_OVERVIEW_DESCRIPTION));
        // set url
        api.setStatus(getLcStateFromArtifact(artifact));
        api.setThumbnailUrl(artifact.getAttribute(APIConstants.API_OVERVIEW_THUMBNAIL_URL));
        api.setWsdlUrl(artifact.getAttribute(APIConstants.API_OVERVIEW_WSDL));
        api.setWadlUrl(artifact.getAttribute(APIConstants.API_OVERVIEW_WADL));
        api.setTechnicalOwner(artifact.getAttribute(APIConstants.API_OVERVIEW_TEC_OWNER));
        api.setTechnicalOwnerEmail(artifact.getAttribute(APIConstants.API_OVERVIEW_TEC_OWNER_EMAIL));
        api.setBusinessOwner(artifact.getAttribute(APIConstants.API_OVERVIEW_BUSS_OWNER));
        api.setBusinessOwnerEmail(artifact.getAttribute(APIConstants.API_OVERVIEW_BUSS_OWNER_EMAIL));
        api.setVisibility(artifact.getAttribute(APIConstants.API_OVERVIEW_VISIBILITY));
        api.setVisibleRoles(artifact.getAttribute(APIConstants.API_OVERVIEW_VISIBLE_ROLES));
        api.setVisibleTenants(artifact.getAttribute(APIConstants.API_OVERVIEW_VISIBLE_TENANTS));
        api.setEndpointSecured(Boolean.parseBoolean(artifact.getAttribute(APIConstants.API_OVERVIEW_ENDPOINT_SECURED)));
        api.setEndpointAuthDigest(Boolean.parseBoolean(artifact.getAttribute(APIConstants.API_OVERVIEW_ENDPOINT_AUTH_DIGEST)));
        api.setEndpointUTUsername(artifact.getAttribute(APIConstants.API_OVERVIEW_ENDPOINT_USERNAME));
        if (!((APIConstants.DEFAULT_MODIFIED_ENDPOINT_PASSWORD).equals(artifact.getAttribute(APIConstants.API_OVERVIEW_ENDPOINT_PASSWORD)))) {
            api.setEndpointUTPassword(artifact.getAttribute(APIConstants.API_OVERVIEW_ENDPOINT_PASSWORD));
        } else {
            // If APIEndpointPasswordRegistryHandler is enabled take password from the registry hidden property
            api.setEndpointUTPassword(apiResource.getProperty(APIConstants.REGISTRY_HIDDEN_ENDPOINT_PROPERTY));
        }
        api.setTransports(artifact.getAttribute(APIConstants.API_OVERVIEW_TRANSPORTS));
        api.setInSequence(artifact.getAttribute(APIConstants.API_OVERVIEW_INSEQUENCE));
        api.setOutSequence(artifact.getAttribute(APIConstants.API_OVERVIEW_OUTSEQUENCE));
        api.setFaultSequence(artifact.getAttribute(APIConstants.API_OVERVIEW_FAULTSEQUENCE));
        api.setResponseCache(artifact.getAttribute(APIConstants.API_OVERVIEW_RESPONSE_CACHING));
        api.setImplementation(artifact.getAttribute(APIConstants.PROTOTYPE_OVERVIEW_IMPLEMENTATION));
        api.setType(artifact.getAttribute(APIConstants.API_OVERVIEW_TYPE));
        api.setProductionMaxTps(artifact.getAttribute(APIConstants.API_PRODUCTION_THROTTLE_MAXTPS));
        api.setSandboxMaxTps(artifact.getAttribute(APIConstants.API_SANDBOX_THROTTLE_MAXTPS));
        api.setGatewayVendor(artifact.getAttribute(APIConstants.API_GATEWAY_VENDOR));
        api.setAsyncTransportProtocols(artifact.getAttribute(APIConstants.ASYNC_API_TRANSPORT_PROTOCOLS));
        int cacheTimeout = APIConstants.API_RESPONSE_CACHE_TIMEOUT;
        try {
            String strCacheTimeout = artifact.getAttribute(APIConstants.API_OVERVIEW_CACHE_TIMEOUT);
            if (strCacheTimeout != null && !strCacheTimeout.isEmpty()) {
                cacheTimeout = Integer.parseInt(strCacheTimeout);
            }
        } catch (NumberFormatException e) {
            if (log.isWarnEnabled()) {
                log.warn("Error while retrieving cache timeout from the registry for " + apiIdentifier);
            }
        // ignore the exception and use default cache timeout value
        }
        api.setCacheTimeout(cacheTimeout);
        api.setEndpointConfig(artifact.getAttribute(APIConstants.API_OVERVIEW_ENDPOINT_CONFIG));
        api.setRedirectURL(artifact.getAttribute(APIConstants.API_OVERVIEW_REDIRECT_URL));
        api.setApiExternalProductionEndpoint(artifact.getAttribute(APIConstants.API_OVERVIEW_EXTERNAL_PRODUCTION_ENDPOINT));
        api.setApiExternalSandboxEndpoint(artifact.getAttribute(APIConstants.API_OVERVIEW_EXTERNAL_SANDBOX_ENDPOINT));
        api.setAdvertiseOnlyAPIVendor(artifact.getAttribute(APIConstants.API_OVERVIEW_ADVERTISE_ONLY_API_VENDOR));
        api.setApiOwner(artifact.getAttribute(APIConstants.API_OVERVIEW_OWNER));
        api.setAdvertiseOnly(Boolean.parseBoolean(artifact.getAttribute(APIConstants.API_OVERVIEW_ADVERTISE_ONLY)));
        api.setType(artifact.getAttribute(APIConstants.API_OVERVIEW_TYPE));
        api.setSubscriptionAvailability(artifact.getAttribute(APIConstants.API_OVERVIEW_SUBSCRIPTION_AVAILABILITY));
        api.setSubscriptionAvailableTenants(artifact.getAttribute(APIConstants.API_OVERVIEW_SUBSCRIPTION_AVAILABLE_TENANTS));
        String tenantDomainName = MultitenantUtils.getTenantDomain(replaceEmailDomainBack(providerName));
        int tenantId = ServiceReferenceHolder.getInstance().getRealmService().getTenantManager().getTenantId(tenantDomainName);
        String tiers = artifact.getAttribute(APIConstants.API_OVERVIEW_TIER);
        Set<Tier> availableTiers = new HashSet<Tier>();
        if (tiers != null) {
            String[] tiersArray = tiers.split("\\|\\|");
            for (String tierName : tiersArray) {
                availableTiers.add(new Tier(tierName));
            }
        }
        api.setAvailableTiers(availableTiers);
        // This contains the resolved context
        api.setContext(artifact.getAttribute(APIConstants.API_OVERVIEW_CONTEXT));
        // We set the context template here
        api.setContextTemplate(artifact.getAttribute(APIConstants.API_OVERVIEW_CONTEXT_TEMPLATE));
        api.setLatest(Boolean.parseBoolean(artifact.getAttribute(APIConstants.API_OVERVIEW_IS_LATEST)));
        api.setEnableSchemaValidation(Boolean.parseBoolean(artifact.getAttribute(APIConstants.API_OVERVIEW_ENABLE_JSON_SCHEMA)));
        api.setEnableStore(Boolean.parseBoolean(artifact.getAttribute(APIConstants.API_OVERVIEW_ENABLE_STORE)));
        api.setTestKey(artifact.getAttribute(APIConstants.API_OVERVIEW_TESTKEY));
        Set<String> tags = new HashSet<String>();
        Tag[] tag = registry.getTags(artifactPath);
        for (Tag tag1 : tag) {
            tags.add(tag1.getTagName());
        }
        api.setTags(tags);
        api.setLastUpdated(apiResource.getLastModified());
        api.setCreatedTime(String.valueOf(apiResource.getCreatedTime().getTime()));
        api.setImplementation(artifact.getAttribute(APIConstants.PROTOTYPE_OVERVIEW_IMPLEMENTATION));
        api.setEnvironments(getEnvironments(artifact.getAttribute(APIConstants.API_OVERVIEW_ENVIRONMENTS)));
        api.setCorsConfiguration(getCorsConfigurationFromArtifact(artifact));
        api.setWebsubSubscriptionConfiguration(getWebsubSubscriptionConfigurationFromArtifact(artifact));
        api.setAuthorizationHeader(artifact.getAttribute(APIConstants.API_OVERVIEW_AUTHORIZATION_HEADER));
        api.setApiSecurity(artifact.getAttribute(APIConstants.API_OVERVIEW_API_SECURITY));
        // set data and status related to monetization
        api.setMonetizationEnabled(Boolean.parseBoolean(artifact.getAttribute(APIConstants.Monetization.API_MONETIZATION_STATUS)));
        String monetizationInfo = artifact.getAttribute(APIConstants.Monetization.API_MONETIZATION_PROPERTIES);
        api.setWsUriMapping(getWsUriMappingFromArtifact(artifact));
        api.setAudience(artifact.getAttribute(APIConstants.API_OVERVIEW_AUDIENCE));
        api.setVersionTimestamp(artifact.getAttribute(APIConstants.API_OVERVIEW_VERSION_TIMESTAMP));
        // set selected clusters which API needs to be deployed
        String deployments = artifact.getAttribute(APIConstants.API_OVERVIEW_DEPLOYMENTS);
        if (StringUtils.isNotBlank(monetizationInfo)) {
            JSONParser parser = new JSONParser();
            JSONObject jsonObj = (JSONObject) parser.parse(monetizationInfo);
            api.setMonetizationProperties(jsonObj);
        }
        api.setApiCategories(getAPICategoriesFromAPIGovernanceArtifact(artifact, tenantId));
        // get endpoint config string from artifact, parse it as a json and set the environment list configured with
        // non empty URLs to API object
        String keyManagers = artifact.getAttribute(APIConstants.API_OVERVIEW_KEY_MANAGERS);
        if (StringUtils.isNotEmpty(keyManagers)) {
            api.setKeyManagers(new Gson().fromJson(keyManagers, List.class));
        } else {
            api.setKeyManagers(Arrays.asList(APIConstants.API_LEVEL_ALL_KEY_MANAGERS));
        }
        try {
            api.setEnvironmentList(extractEnvironmentListForAPI(artifact.getAttribute(APIConstants.API_OVERVIEW_ENDPOINT_CONFIG)));
        } catch (ParseException e) {
            String msg = "Failed to parse endpoint config JSON of API: " + apiName + " " + apiVersion;
            log.error(msg, e);
            throw new APIManagementException(msg, e);
        } catch (ClassCastException e) {
            String msg = "Invalid endpoint config JSON found in API: " + apiName + " " + apiVersion;
            log.error(msg, e);
            throw new APIManagementException(msg, e);
        }
    } catch (GovernanceException e) {
        String msg = "Failed to get API for artifact ";
        throw new APIManagementException(msg, e);
    } catch (RegistryException e) {
        String msg = "Failed to get LastAccess time or Rating";
        throw new APIManagementException(msg, e);
    } catch (UserStoreException e) {
        String msg = "Failed to get User Realm of API Provider";
        throw new APIManagementException(msg, e);
    } catch (ParseException e) {
        String msg = "Failed to get parse monetization information.";
        throw new APIManagementException(msg, e);
    }
    return api;
}

Example 20 with APIIdentifier

use of org.wso2.carbon.apimgt.api.model.APIIdentifier in project carbon-apimgt by wso2.

the class GraphQLSchemaDefinition method getGraphqlSchemaDefinition.

/**
 * Returns the graphQL content in registry specified by the wsdl name
 *
 * @param apiId Api Identifier
 * @return graphQL content matching name if exist else null
 */
public String getGraphqlSchemaDefinition(APIIdentifier apiId, Registry registry) throws APIManagementException {
    String apiName = apiId.getApiName();
    String apiVersion = apiId.getVersion();
    String apiProviderName = apiId.getProviderName();
    APIRevision apiRevision = ApiMgtDAO.getInstance().checkAPIUUIDIsARevisionUUID(apiId.getUUID());
    String resourcePath;
    if (apiRevision != null && apiRevision.getApiUUID() != null) {
        resourcePath = APIUtil.getRevisionPath(apiRevision.getApiUUID(), apiRevision.getId());
    } else {
        resourcePath = APIUtil.getGraphqlDefinitionFilePath(apiName, apiVersion, apiProviderName);
    }
    String schemaDoc = null;
    String schemaName = apiId.getProviderName() + APIConstants.GRAPHQL_SCHEMA_PROVIDER_SEPERATOR + apiId.getApiName() + apiId.getVersion() + APIConstants.GRAPHQL_SCHEMA_FILE_EXTENSION;
    String schemaResourePath = resourcePath + schemaName;
    try {
        if (registry.resourceExists(schemaResourePath)) {
            Resource schemaResource = registry.get(schemaResourePath);
            schemaDoc = IOUtils.toString(schemaResource.getContentStream(), RegistryConstants.DEFAULT_CHARSET_ENCODING);
        }
    } catch (RegistryException e) {
        String msg = "Error while getting schema file from the registry " + schemaResourePath;
        log.error(msg, e);
        throw new APIManagementException(msg, e);
    } catch (IOException e) {
        String error = "Error occurred while getting the content of schema: " + schemaName;
        log.error(error);
        throw new APIManagementException(error, e);
    }
    return schemaDoc;
}