import org.apache.wicket.ajax.json.JSONObject; //导入依赖的package包/类
public String getUrlFromJson(final String jsonString) throws JSONException {
    // The handle API returns a JSON structure with a number of handle
    // record fields. We are only interested in the value at
    // values[x].data.value where values[x].type == 'URL'

    final JSONObject jsonResponse = new JSONObject(jsonString);
    final JSONArray valuesArray = jsonResponse.getJSONArray("values");
    for (int i = 0; i < valuesArray.length(); i++) {
        final JSONObject object = valuesArray.getJSONObject(i);
        final String type = object.getString("type");
        if ("URL".equals(type) && object.has("data")) {
            final JSONObject data = object.getJSONObject("data");
            if (data.has("value")) {
                // the field we were looking for
                return data.getString("value");
            }
        }
    }
    // no URL field??
    logger.error("Handle API response did not incude a URL field");
    return null;
}
 

import org.apache.wicket.ajax.json.JSONObject; //导入依赖的package包/类
private IModel<String> createJsonModel(final IModel<SolrDocument> model, final IModel<String> endpointModel) {
    // Prepare a JSON object that holds the CQL endpoint and the document self link
    return new AbstractReadOnlyModel<String>() {
        @Override
        public String getObject() {
            final String endPoint = endpointModel.getObject();
            final Object selfLink = model.getObject().getFirstValue(FacetConstants.FIELD_SELF_LINK);
            try {
                final JSONObject json = new JSONObject();
                json.put(endPoint, new JSONArray(new Object[]{selfLink}));
                return json.toString(2);
            } catch (JSONException ex) {
                logger.warn("Could not create JSON for aggregation context with endpoint '{}' and docId '{}'", endPoint, selfLink, ex);
                return null;
            }
        }

        @Override
        public void detach() {
            super.detach();
            endpointModel.detach();
        }

    };
}
 

import org.apache.wicket.ajax.json.JSONObject; //导入依赖的package包/类
@Override
protected void postprocessConfiguration(JSONObject attributesJson, Component component) throws JSONException {
	super.postprocessConfiguration(attributesJson, component);
	if (choice) {
		/* RadioGroups *may* not have an ID in the resulting HTML, so we must attach the handler to each
		 * input with the correct name in the same form.
		 * See also: getUniqueEventName(), getCallbackScript(), updateAjaxAttributes()
		 */
		attributesJson.put(AjaxAttributeName.MARKUP_ID.jsonName(), component.findParent(Form.class).getMarkupId());
		attributesJson.put(AjaxAttributeName.CHILD_SELECTOR.jsonName(), "input[name=\"" + ((FormComponent<?>)component).getInputName() + "\"]");
	}
}
 

import org.apache.wicket.ajax.json.JSONObject; //导入依赖的package包/类
/**
 * List all the projects for a given user with their roles
 * 
 * Test when running in Eclipse: Open your browser, paste following URL with appropriate values
 * for username and password:
 * 
 * http://USERNAME:[email protected]:8080/webanno-webapp/api/projects
 * 
 * @return JSON string of project where user has access to and respective roles in the project.
 * @throws Exception
 *             if there was an error.
 */
@RequestMapping(
        value = ("/" + PROJECTS), 
        method = RequestMethod.GET)
public ResponseEntity<String> projectList()
    throws Exception
{
    // Get current user
    String username = SecurityContextHolder.getContext().getAuthentication().getName();
    User user = userRepository.get(username);
    if (user == null) {
        return ResponseEntity
                .badRequest()
                .body("User [" + username + "] not found.");
    }

    // Get projects with permission
    List<Project> accessibleProjects = projectRepository.listAccessibleProjects(user);

    // Add permissions for each project into JSON array and store in JSON object
    JSONObject returnJSONObj = new JSONObject();
    for (Project project : accessibleProjects) {
        String projectId = Long.toString(project.getId());
        List<ProjectPermission> projectPermissions = projectRepository
                .listProjectPermissionLevel(user, project);
        JSONArray permissionArr = new JSONArray();
        JSONObject projectJSON = new JSONObject();

        for (ProjectPermission p : projectPermissions) {
            permissionArr.put(p.getLevel().getName());
        }
        projectJSON.put(project.getName(), permissionArr);
        returnJSONObj.put(projectId, projectJSON);
    }
    return ResponseEntity.ok(returnJSONObj.toString());
}
 

import org.apache.wicket.ajax.json.JSONObject; //导入依赖的package包/类
public List<Measurement> cubesAdapterQuery(String bindedSystem, String cubeName, String queryExpression) throws uQasarException{
	URI uri = null;
	LinkedList<Measurement> measurements = new LinkedList<>();

	try {
		uri = new URI(bindedSystem + "/" + queryExpression);
		String url = uri.toASCIIString();

		JSONResource res = getJSON(url);
		us.monoid.json.JSONObject json = res.toObject();
		logger.info(json.toString());

		JSONArray measurementResultJSONArray = new JSONArray();
		JSONObject bp = new JSONObject();
		bp.put("self", url);
		bp.put("key", cubeName);
		bp.put("name", queryExpression);
		measurementResultJSONArray.put(bp);
		logger.info(measurementResultJSONArray.toString());

		measurements.add(new Measurement(uQasarMetric.PROJECTS_PER_SYSTEM_INSTANCE, measurementResultJSONArray.toString()));

	} catch (URISyntaxException | org.apache.wicket.ajax.json.JSONException | JSONException | IOException e) {
		e.printStackTrace();
	}

       return measurements;
}
 

import org.apache.wicket.ajax.json.JSONObject; //导入依赖的package包/类
/**
 * creates the initializer script
 *
 * @param data configuration data
 * @return new initializer script.
 */
protected CharSequence createInitializerScript(final Map<String, Object> data) {
    try {
        return "window.wicketClientSideLogging(jQuery, Wicket, window.amplify, " + JSONObject.valueToString(data) + ");";
    } catch (JSONException e) {
        throw new WicketRuntimeException(e);
    }
}
 

import org.apache.wicket.ajax.json.JSONObject; //导入依赖的package包/类
/**
 * Show source documents in given project where user has ADMIN access
 * 
 * http://USERNAME:[email protected]:8080/webanno-webapp/api/projects/{aProjectId}/sourcedocs
 * 
 * @param aProjectId the project ID
 * @return JSON with {@link SourceDocument} : id
 */
@RequestMapping(
        value = "/" + PROJECTS + "/{" + PARAM_PROJECT_ID + "}/" + DOCUMENTS, 
        method = RequestMethod.GET)
public ResponseEntity<String> sourceDocumentList(
        @PathVariable(PARAM_PROJECT_ID) long aProjectId)
    throws Exception
{               
    // Get current user
    String username = SecurityContextHolder.getContext().getAuthentication().getName();
    User user = userRepository.get(username);
    if (user == null) {
        return ResponseEntity
                .badRequest()
                .body("User [" + username + "] not found.");
    }
    
    // Get project
    Project project;
    try {
        project = projectRepository.getProject(aProjectId);
    }
    catch (NoResultException e) {
        return ResponseEntity
                .status(HttpStatus.NOT_FOUND)
                .body("Project [" + aProjectId + "] not found.");
    }
    
    // Check for the access
    boolean hasAccess = 
            SecurityUtil.isProjectAdmin(project, projectRepository, user) ||
            SecurityUtil.isSuperAdmin(projectRepository, user);
    if (!hasAccess) {
        return ResponseEntity.status(HttpStatus.FORBIDDEN).body("User [" + username
                + "] is not allowed to access project [" + aProjectId + "]");
    }
        
    List<SourceDocument> srcDocumentList = documentRepository.listSourceDocuments(project);
    JSONArray sourceDocumentJSONArr = new JSONArray();
    for (SourceDocument s : srcDocumentList) { 
        JSONObject sourceDocumentJSONObj = new JSONObject();                 
        sourceDocumentJSONObj.put("id", s.getId());
        sourceDocumentJSONObj.put("name", s.getName());
        sourceDocumentJSONObj.put("state", s.getState());
        sourceDocumentJSONArr.put(sourceDocumentJSONObj);                                 
    }
    
    return ResponseEntity.ok(sourceDocumentJSONArr.toString());
}
 

import org.apache.wicket.ajax.json.JSONObject; //导入依赖的package包/类
/**
 * Upload a source document into project where user has "ADMIN" role
 * 
 * Test when running in Eclipse, use the Linux "curl" command.
 * 
 * curl -v -F '[email protected]' -F 'filetype=text'
 * 'http://USERNAME:[email protected]:8080/webanno-webapp/api/projects/{aProjectId}/sourcedocs/
 * '
 * 
 * @param aFile
 *            File for {@link SourceDocument}.
 * @param aProjectId
 *            {@link Project} id.
 * @param aFileType
 *            Extension of the file.
 * @return returns JSON string with id to the created source document.
 * @throws Exception
 *             if there was an error.
 */
@RequestMapping(
        value = "/" + PROJECTS + "/{" + PARAM_PROJECT_ID + "}/" + DOCUMENTS, 
        method = RequestMethod.POST, 
        consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
public ResponseEntity<String> sourceDocumentCreate(
        @RequestParam(PARAM_FILE) MultipartFile aFile,
        @RequestParam(PARAM_FILETYPE) String aFileType, 
        @PathVariable(PARAM_PROJECT_ID) long aProjectId)
            throws Exception
{
    // Get current user
    String username = SecurityContextHolder.getContext().getAuthentication().getName();
    User user = userRepository.get(username);
    if (user == null) {
        return ResponseEntity
                .badRequest()
                .body("User [" + username + "] not found.");
    }

    // Get project
    Project project;
    try {
        project = projectRepository.getProject(aProjectId);
    }
    catch (NoResultException e) {
        return ResponseEntity
                .status(HttpStatus.NOT_FOUND)
                .body("Project [" + aProjectId + "] not found.");
    }

    // Check for the access
    boolean hasAccess = 
            SecurityUtil.isProjectAdmin(project, projectRepository, user) ||
            SecurityUtil.isSuperAdmin(projectRepository, user);
    if (!hasAccess) {
        return ResponseEntity.status(HttpStatus.FORBIDDEN).body("User [" + username
                + "] is not allowed to access project [" + aProjectId + "]");
    }
    
    // Existing project
    if (documentRepository.existsSourceDocument(project, aFile.getOriginalFilename())) {
        return ResponseEntity
                .status(HttpStatus.CONFLICT)
                .body("A document with name [" + aFile.getOriginalFilename() + "] already exists");
    }
    
    // Check if file already present or not
    try (InputStream is = aFile.getInputStream()) {
        uploadSourceDocumentFile(is,aFile.getOriginalFilename(), project, aFileType);
    }
    
    // add id of added source document in return json string
    JSONObject returnJSON = new JSONObject();
    returnJSON.put("id",
            documentRepository.getSourceDocument(project, aFile.getOriginalFilename()).getId());
    return ResponseEntity.ok(returnJSON.toString());
}