Examples with IJsonInput org.structr.core.IJsonInput used on opensource projects

Example 1 with IJsonInput

use of org.structr.core.IJsonInput in project structr by structr.

the class JsonRestServlet method doPost.

// </editor-fold>
// <editor-fold defaultstate="collapsed" desc="POST">
@Override
protected void doPost(final HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    final List<RestMethodResult> results = new LinkedList<>();
    final SecurityContext securityContext;
    final Authenticator authenticator;
    final Resource resource;
    try {
        assertInitialized();
        // first thing to do!
        request.setCharacterEncoding("UTF-8");
        response.setCharacterEncoding("UTF-8");
        response.setContentType("application/json; charset=utf-8");
        // get reader before initalizing security context
        final String input = IOUtils.toString(request.getReader());
        // isolate request authentication in a transaction
        try (final Tx tx = StructrApp.getInstance().tx()) {
            authenticator = config.getAuthenticator();
            securityContext = authenticator.initializeAndExamineRequest(request, response);
            tx.success();
        }
        final App app = StructrApp.getInstance(securityContext);
        final IJsonInput jsonInput = cleanAndParseJsonString(app, input);
        if (securityContext != null) {
            // isolate resource authentication
            try (final Tx tx = app.tx()) {
                resource = ResourceHelper.applyViewTransformation(request, securityContext, ResourceHelper.optimizeNestedResourceChain(securityContext, request, resourceMap, propertyView), propertyView);
                authenticator.checkResourceAccess(securityContext, request, resource.getResourceSignature(), propertyView.get(securityContext));
                tx.success();
            }
            // isolate doPost
            boolean retry = true;
            while (retry) {
                if (resource.createPostTransaction()) {
                    try (final Tx tx = app.tx()) {
                        for (JsonInput propertySet : jsonInput.getJsonInputs()) {
                            results.add(resource.doPost(convertPropertySetToMap(propertySet)));
                        }
                        tx.success();
                        retry = false;
                    } catch (RetryException ddex) {
                        retry = true;
                    }
                } else {
                    try {
                        for (JsonInput propertySet : jsonInput.getJsonInputs()) {
                            results.add(resource.doPost(convertPropertySetToMap(propertySet)));
                        }
                        retry = false;
                    } catch (RetryException ddex) {
                        retry = true;
                    }
                }
            }
            // set default value for property view
            propertyView.set(securityContext, config.getDefaultPropertyView());
            // isolate write output
            try (final Tx tx = app.tx()) {
                if (!results.isEmpty()) {
                    final RestMethodResult result = results.get(0);
                    final int resultCount = results.size();
                    if (result != null) {
                        if (resultCount > 1) {
                            for (final RestMethodResult r : results) {
                                final GraphObject objectCreated = r.getContent().get(0);
                                if (!result.getContent().contains(objectCreated)) {
                                    result.addContent(objectCreated);
                                }
                            }
                            // remove Location header if more than one object was
                            // written because it may only contain a single URL
                            result.addHeader("Location", null);
                        }
                        result.commitResponse(gson.get(), response);
                    }
                }
                tx.success();
            }
        } else {
            // isolate write output
            try (final Tx tx = app.tx()) {
                new RestMethodResult(HttpServletResponse.SC_FORBIDDEN).commitResponse(gson.get(), response);
                tx.success();
            }
        }
    } catch (FrameworkException frameworkException) {
        // set status & write JSON output
        response.setStatus(frameworkException.getStatus());
        gson.get().toJson(frameworkException, response.getWriter());
        response.getWriter().println();
    } catch (JsonSyntaxException jsex) {
        logger.warn("POST: Invalid JSON syntax", jsex.getMessage());
        int code = HttpServletResponse.SC_BAD_REQUEST;
        response.setStatus(code);
        response.getWriter().append(RestMethodResult.jsonError(code, "JsonSyntaxException in POST: " + jsex.getMessage()));
    } catch (JsonParseException jpex) {
        logger.warn("Unable to parse JSON string", jpex.getMessage());
        int code = HttpServletResponse.SC_BAD_REQUEST;
        response.setStatus(code);
        response.getWriter().append(RestMethodResult.jsonError(code, "JsonParseException in POST: " + jpex.getMessage()));
    } catch (UnsupportedOperationException uoe) {
        logger.warn("POST not supported");
        int code = HttpServletResponse.SC_BAD_REQUEST;
        response.setStatus(code);
        response.getWriter().append(RestMethodResult.jsonError(code, "POST not supported: " + uoe.getMessage()));
    } catch (Throwable t) {
        logger.warn("Exception in POST", t);
        int code = HttpServletResponse.SC_INTERNAL_SERVER_ERROR;
        response.setStatus(code);
        response.getWriter().append(RestMethodResult.jsonError(code, "JsonSyntaxException in POST: " + t.getMessage()));
    } finally {
        try {
            // response.getWriter().flush();
            response.getWriter().close();
        } catch (Throwable t) {
            logger.warn("Unable to flush and close response: {}", t.getMessage());
        }
    }
}

Example 2 with IJsonInput

use of org.structr.core.IJsonInput in project structr by structr.

the class JsonRestServlet method doPut.

// </editor-fold>
// <editor-fold defaultstate="collapsed" desc="PUT">
@Override
protected void doPut(final HttpServletRequest request, final HttpServletResponse response) throws ServletException, IOException {
    final SecurityContext securityContext;
    final Authenticator authenticator;
    final Resource resource;
    RestMethodResult result = new RestMethodResult(HttpServletResponse.SC_BAD_REQUEST);
    try {
        assertInitialized();
        // first thing to do!
        request.setCharacterEncoding("UTF-8");
        response.setCharacterEncoding("UTF-8");
        response.setContentType("application/json; charset=utf-8");
        // get reader before initalizing security context
        final String input = IOUtils.toString(request.getReader());
        // isolate request authentication in a transaction
        try (final Tx tx = StructrApp.getInstance().tx()) {
            authenticator = config.getAuthenticator();
            securityContext = authenticator.initializeAndExamineRequest(request, response);
            tx.success();
        }
        final App app = StructrApp.getInstance(securityContext);
        final IJsonInput jsonInput = cleanAndParseJsonString(app, input);
        if (securityContext != null) {
            // isolate resource authentication
            try (final Tx tx = app.tx()) {
                // evaluate constraint chain
                resource = ResourceHelper.applyViewTransformation(request, securityContext, ResourceHelper.optimizeNestedResourceChain(securityContext, request, resourceMap, propertyView), propertyView);
                authenticator.checkResourceAccess(securityContext, request, resource.getResourceSignature(), propertyView.get(securityContext));
                tx.success();
            }
            // isolate doPut
            boolean retry = true;
            while (retry) {
                try (final Tx tx = app.tx()) {
                    result = resource.doPut(convertPropertySetToMap(jsonInput.getJsonInputs().get(0)));
                    tx.success();
                    retry = false;
                } catch (RetryException ddex) {
                    retry = true;
                }
            }
            // isolate write output
            try (final Tx tx = app.tx()) {
                result.commitResponse(gson.get(), response);
                tx.success();
            }
        } else {
            // isolate write output
            try (final Tx tx = app.tx()) {
                result = new RestMethodResult(HttpServletResponse.SC_FORBIDDEN);
                result.commitResponse(gson.get(), response);
                tx.success();
            }
        }
    } catch (FrameworkException frameworkException) {
        // set status & write JSON output
        response.setStatus(frameworkException.getStatus());
        gson.get().toJson(frameworkException, response.getWriter());
        response.getWriter().println();
    } catch (JsonSyntaxException jsex) {
        logger.warn("PUT: Invalid JSON syntax", jsex.getMessage());
        int code = HttpServletResponse.SC_BAD_REQUEST;
        response.setStatus(code);
        response.getWriter().append(RestMethodResult.jsonError(code, "JsonSyntaxException in PUT: " + jsex.getMessage()));
    } catch (JsonParseException jpex) {
        logger.warn("PUT: Unable to parse JSON string", jpex.getMessage());
        int code = HttpServletResponse.SC_BAD_REQUEST;
        response.setStatus(code);
        response.getWriter().append(RestMethodResult.jsonError(code, "JsonSyntaxException in PUT: " + jpex.getMessage()));
    } catch (Throwable t) {
        logger.warn("Exception in PUT", t);
        logger.warn("", t);
        int code = HttpServletResponse.SC_INTERNAL_SERVER_ERROR;
        response.setStatus(code);
        response.getWriter().append(RestMethodResult.jsonError(code, "JsonSyntaxException in PUT: " + t.getMessage()));
    } finally {
        try {
            // response.getWriter().flush();
            response.getWriter().close();
        } catch (Throwable t) {
            logger.warn("Unable to flush and close response: {}", t.getMessage());
        }
    }
}

Example 3 with IJsonInput

use of org.structr.core.IJsonInput in project structr by structr.

the class JsonRestServlet method cleanAndParseJsonString.

// </editor-fold>
// <editor-fold defaultstate="collapsed" desc="private methods">
private IJsonInput cleanAndParseJsonString(final App app, final String input) throws FrameworkException {
    IJsonInput jsonInput = null;
    // isolate input parsing (will include read and write operations)
    try (final Tx tx = app.tx()) {
        jsonInput = gson.get().fromJson(input, IJsonInput.class);
        tx.success();
    } catch (JsonSyntaxException jsx) {
        logger.warn("", jsx);
        throw new FrameworkException(400, jsx.getMessage());
    }
    if (jsonInput == null) {
        if (StringUtils.isBlank(input)) {
            try (final Tx tx = app.tx()) {
                jsonInput = gson.get().fromJson("{}", IJsonInput.class);
                tx.success();
            }
        } else {
            // throw new JsonParseException("Invalid or empty JSON string, must at least contain {} to be valid!");
            jsonInput = new JsonSingleInput();
        }
    }
    return jsonInput;
}

Example 4 with IJsonInput

use of org.structr.core.IJsonInput in project structr by structr.

the class JsonInputGSONAdapter method deserialize.

@Override
public IJsonInput deserialize(final JsonElement json, final Type typeOfT, final JsonDeserializationContext context) throws JsonParseException {
    IJsonInput jsonInput = null;
    JsonInput wrapper = null;
    if (json.isJsonObject()) {
        jsonInput = new JsonSingleInput();
        wrapper = deserialize(json, context);
        jsonInput.add(wrapper);
    } else if (json.isJsonArray()) {
        jsonInput = new JsonSingleInput();
        JsonArray array = json.getAsJsonArray();
        for (final JsonElement elem : array) {
            wrapper = deserialize(elem, context);
            jsonInput.add(wrapper);
        }
    } else {
        // not one of the expected types => error
        throw new JsonSyntaxException("Invalid JSON, expecting object or array");
    }
    return jsonInput;
}