Examples of org.wso2.carbon.registry.core.ResourceImpl

org.wso2.carbon.registry.core.ResourceImpl
Represents any file or collection stored in the registry. It encapsulates both the content of the entity and its meta data. In addition to files and collections, instances of Resource are used to represent results of runtime queries. In such scenarios, comments, tags, ratings as well as collections of comments, etc. are also represented by Resource objects.
Each resource instance contains a unique path within a Registry instance. {@link Registry#get(String)} method invocation using this path gives an instance of that resource. Thispath can be combined with the base URL of the registry server to generate a URI for the resource.
Handling content
Contents of resource can be set either as an input stream or an object. If an input stream is set, an unique file based content will be created for the given input stream. If an object of type byte[] or String is set, an in-memory input stream will be created from it and then a unique file based input stream is created. If an object of any other type is set, there should be a handler to convert it to an input stream before reaching the repository.
When a resource is retrieved from the database layer, its content is not retrieved from the database. Instead, UUID referring to the database content is stored in dbBasedContentID. When the content is first accessed, a file based input stream is created from the database content and fileBasedContentID is set (fileBasedContentID = dbBasedContentID).


        RegistryProperty regProp = null;
        String prop = "";
        List<String> propList = null;
        String propName = tempArr[tempArr.length - 1];
        ResourceImpl res = null;
        boolean resFlag = false;


        try {


            regProp = new RegistryProperty((CollectionImpl) registrySession.getUserRegistry().get(tempPath), registrySession, tempArr[tempArr.length - 1]);


            if ((registrySession.getUserRegistry().resourceExists(absPath)) && (registrySession.getUserRegistry().get(absPath) != null)) {
                res = (ResourceImpl) registrySession.getUserRegistry().get(absPath);
                resFlag = true;


            }


            if ((!resFlag) && (registrySession.getUserRegistry().resourceExists(tempPath)) && (registrySession.getUserRegistry().get(tempPath) != null)) {




                propList = registrySession.getUserRegistry().get(tempPath).getPropertyValues(propName);


                if ((propList != null) && (propList.size() == 1)) {


                    prop = propList.get(0);
                    regProp.setValue(prop);
                } else {


                    if (propList != null) {


                        String[] arr = new String[propList.size()];
                        int i = 0;


                        for (Object ob : propList) {


                            arr[i] = ob.toString();
                            i++;
                        }
                        regProp.setValue(arr);
                    }


                }




            } else if (res != null) {


                if ((res.getProperty("registry.jcr.property.type") != null) && (res.getProperty("registry.jcr.property.type").equals("input_stream"))) {
                    regProp.setValue(res.getContentStream());


                } else if ((res.getProperty("registry.jcr.property.type") != null) && (res.getProperty("registry.jcr.property.type").equals("values_type"))) {
                    List<String> valuesProp = res.getPropertyValues(propName);
                    if (valuesProp != null) {
                        int i = 0;
                        Value[] values = new RegistryValue[valuesProp.size()];


                        for (int j = 0; j < values.length; j++) {


                            values[j] = new RegistryValue(valuesProp.get(j));


                        }


                        regProp.setValue(values);
                    }
                } else if (res.getContent() instanceof String) {
                    prop = res.getContent().toString();


                } else if (res.getContent() instanceof byte[]) {
                    prop = new String((byte[]) res.getContent());


                } else if (prop.equals("")) {


                    throw new PathNotFoundException();
                }




                regProp = RegistrySession.getRegistryProperty(res.getProperty("registry.jcr.property.type"), prop, regProp);


                resFlag = false;




            }

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            String symlinkLocation, Registry registry)
            throws Exception {


        try {
            boolean isNew = !(registry.resourceExists(path));
            ResourceImpl resourceImpl = (ResourceImpl) (isNew ? registry.newResource() :
                    registry.get(path));
            if (resourceImpl.getProperty(RegistryConstants.REGISTRY_LINK) != null &&
                    (CommonConstants.WSDL_MEDIA_TYPE.equals(mediaType) ||
                            CommonConstants.SCHEMA_MEDIA_TYPE.equals(mediaType))) {
                resourceImpl = (ResourceImpl) registry.newResource();
            }
            resourceImpl.setMediaType(mediaType);
            resourceImpl.setDescription(description);
            resourceImpl.setContentStream(content.getInputStream());


            if (symlinkLocation != null && isNew) {
                if (!symlinkLocation.endsWith(RegistryConstants.PATH_SEPARATOR)) {
                    symlinkLocation += RegistryConstants.PATH_SEPARATOR;
                }
                resourceImpl.setProperty(RegistryConstants.SYMLINK_PROPERTY_NAME, symlinkLocation);
                // The symbolic link location is expected to be set only for WSDLs, Schemas and
                // Policies. Therefore, if this has been set, a symbolic link will be created at the
                // given location. However, if the symbolic link already exists, that means that the
                // content is being updated. In such a situation, the symbolic link will first be
                // removed before attempting to do the put operation. This will fix the issue
                // mentioned in CARBON-7350.
                if (registry.resourceExists(path)) {
                    Resource resource = registry.get(path);
                    if (resource != null) {
                        if (resource.getProperty("registry.link") != null) {
                            registry.removeLink(path);
                        }
                    }
                }
            }
            registry.put(path, resourceImpl);
            resourceImpl.discard();


        } catch (Exception e) {


            String msg = "Failed to add resource " + path + ". " + ((e.getCause() instanceof SQLException) ?
                    "" : e.getMessage());

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    private Resource createResource(String path) {
        try {
            String resolvedPath = getCorrectPath(path);
            if (!registry.resourceExists(resolvedPath)) {
                ResourceImpl resource = new ResourceImpl();
                resource.setPath(resolvedPath);
                return resource;
            }
        } catch (RegistryException e) {
            handleException("Unable to create a Resource in path : " + path, e);
        }

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        try {
            String path = requestContext.getResourcePath().getPath();
            UserStoreManager userStoreManager;
            String [] pathParts = path.split("/");
            String username = pathParts[pathParts.length - 2];
            ResourceImpl col = null;
            UserRealm realm = CurrentSession.getUserRealm();


            try{
                userStoreManager = realm.getUserStoreManager();
                /* check the existence of the user in the user manager */
                if(!userStoreManager.isExistingUser(username))
                {


                    if(username.equals("users")){
                        log.error("No user with the username:" +  username + " in the User Manager");
                    }
                    return null;
                }
                StringBuffer resourceContent = new StringBuffer();
                String[] profileNames = userStoreManager.getProfileNames(username);
                for (String temp : profileNames) {
                    Claim[] claimValues = userStoreManager.getUserClaimValues(username, temp);
                    if (claimValues.length != 0) {
                        resourceContent.append(temp).append("%");
                        for (Claim claim : claimValues) {
                            resourceContent.append(claim.getDisplayTag()).append(";").append(
                                    claim.getValue()).append(";");
                        }
                    }
                    resourceContent.append("#");
                }
                Registry registry = requestContext.getRegistry();
                if (registry.resourceExists(path)) {
                    col = (ResourceImpl) registry.get(path);
                    col.setContent(resourceContent.toString());
                }
            } catch (UserStoreException e) {
                log.error("An error occurred while reading profile details", e);
            }
            return col;

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            Resource resource1 = registry.get(path);


            assertEquals("File content is not matching", new String((byte[]) resource1.getContent()),
                    new String((byte[]) res1.getContent()));


            Resource resource = new ResourceImpl();
            byte[] r1content1 = "R2 content updated".getBytes();
            resource.setContent(r1content1);
            resource.setProperty("abc", "abc");


            registry.put(path, resource);


            Resource resource2 = registry.get(path);


            assertEquals("File content is not matching", new String((byte[]) resource.getContent()),
                    new String((byte[]) resource2.getContent()));


            resource.discard();
            res1.discard();
            resource1.discard();
            resource2.discard();
            Thread.sleep(100);
        }

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     *
     * @throws Exception if an error occurs.
     */
    public static void addConfig(Registry registry) throws Exception {


        Resource config = new ResourceImpl();
        String path = RegistryUtils.getAbsolutePath(
                registry.getRegistryContext(), RegistryConstants.CONFIG_REGISTRY_BASE_PATH +
                        RegistryConstants.GOVERNANCE_SERVICES_CONFIG_PATH + "service");
        if (RegistryUtils.systemResourceShouldBeAdded(registry, path)) {
            if (registry.getRegistryContext() != null && registry.getRegistryContext().isClone()) {
                return;
            }
            String serviceConfig = getConfigFile();
            if (serviceConfig != null) {
                config.setContent(serviceConfig.getBytes());
                registry.put(path, config);
            }
        }


    }

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     *
     * @throws Exception if an error occurs.
     */
    public static void addConfigSchema(Registry registry) throws Exception {


        Resource config = new ResourceImpl();
        String path = RegistryUtils.getAbsolutePath(
                registry.getRegistryContext(), RegistryConstants.CONFIG_REGISTRY_BASE_PATH +
                        RegistryConstants.GOVERNANCE_SERVICES_CONFIG_PATH + "service-schema");
        if (RegistryUtils.systemResourceShouldBeAdded(registry, path)) {
            if (registry.getRegistryContext() != null && registry.getRegistryContext().isClone()) {
                return;
            }
            String serviceConfig = getConfigSchemaFile();
            if (serviceConfig != null) {
                config.setContent(serviceConfig.getBytes());
                registry.put(path, config);
            }
        }


    }

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     * @throws RegistryException if the operation failed.
     */
    public void createSnapshot(Resource resource,
                               boolean isRenewing,
                               boolean keepProperties) throws RegistryException {
        ResourceImpl resourceImpl = (ResourceImpl) resource;
        // archiving the old root resource
        createVersionForResource(resourceImpl, isRenewing, keepProperties);


        long version = resourceImpl.getVersionNumber();
        boolean isCollection = resourceImpl instanceof CollectionImpl;
        ResourceIDImpl rootResourceID = resourceImpl.getResourceIDImpl();
        ArrayList<Long> versionList = new ArrayList<Long>();
        versionList.add(version);
        if (isCollection) {
            // for collection we have to iterate through children
            addDescendants(rootResourceID, versionList, isRenewing, keepProperties);
        }
        // wrap the array list into stream
        InputStream versionsInputStream = new VersionInputStream(versionList);


        int pathId = rootResourceID.getPathID();
        String resourceName = rootResourceID.getName();
        long snapshotID =
                resourceVersionDAO.createSnapshot(pathId, resourceName, versionsInputStream);
        // Associations can be created only once we have created the snapshot, since we need to know
        // the snapshotID.
        if (snapshotID != -1) {
            VersionedPath versionedPath = new VersionedPath();
            versionedPath.setVersion(snapshotID);
            versionedPath.setPath(resourceImpl.getPath());
            associationDAO.copyAssociations(resourceImpl.getPath(), versionedPath.toString());
        }
    }

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            String msg = "Failed to get resource id to create a snapshot to the resource " +
                    path + ". ";
            throw new RegistryException(msg);


        }
        ResourceImpl resource = resourceDAO.getResourceMetaData(resourceID);
        createSnapshot(resource, isRenewing, keepProperties);
    }

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                               boolean isRenewing,
                               boolean keepProperties) throws RegistryException {
        ArrayList<ResourceIDImpl> childIds = resourceDAO.getChildPathIds(resourceID);
        // immediate children will be added before others
        for (ResourceIDImpl childId : childIds) {
            ResourceImpl childResourceImpl = resourceDAO.getResourceWithNoUpdate(childId);
            long version = childResourceImpl.getVersionNumber();
            versionList.add(version);


            // we are archiving all the resources
            createVersionForResource(childResourceImpl, isRenewing, keepProperties);
        }

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