Examples with Request org.restlet.Request used on opensource projects

Example 96 with Request

use of org.restlet.Request in project qi4j-sdk by Qi4j.

the class ContextResourceClient method delete.

// Delete
public HandlerCommand delete(ResponseHandler responseHandler, ResponseHandler processingErrorHandler) throws ResourceException {
    if (responseHandler == null)
        responseHandler = deleteHandler;
    Request request = new Request(Method.DELETE, new Reference(reference.toUri()).toString());
    contextResourceFactory.updateCommandRequest(request);
    int tries = 3;
    while (true) {
        Response response = new Response(request);
        try {
            contextResourceFactory.getClient().handle(request, response);
            if (!response.getStatus().isSuccess()) {
                return errorHandler.handleResponse(response, this);
            } else {
                // Reset modification date
                contextResourceFactory.updateCache(response);
                return responseHandler.handleResponse(response, this);
            }
        } catch (ResourceException e) {
            if (e.getStatus().equals(Status.CONNECTOR_ERROR_COMMUNICATION) || e.getStatus().equals(Status.CONNECTOR_ERROR_CONNECTION)) {
                if (tries == 0) {
                    // Give up
                    throw e;
                } else {
                    // Try again
                    tries--;
                    continue;
                }
            } else {
                // Abort
                throw e;
            }
        } finally {
            try {
                response.getEntity().exhaust();
            } catch (Throwable e) {
            // Ignore
            }
        }
    }
}

Example 97 with Request

use of org.restlet.Request in project qi4j-sdk by Qi4j.

the class ContextResource method handleQuery.

private void handleQuery(String segment) {
    Request request = Request.getCurrent();
    Response response = Response.getCurrent();
    // Query
    // Try to locate either the query method or command method that should be used
    Method queryMethod = resourceMethodQueries.get(segment);
    if (queryMethod == null) {
        queryMethod = resourceMethodCommands.get(segment);
    }
    if (queryMethod == null) {
        // Not found as interaction, try SubResource
        Method resourceMethod = subResources.get(segment);
        if (resourceMethod != null && resourceMethod.getAnnotation(SubResource.class) != null) {
            // Found it! Redirect to it
            response.setStatus(Status.REDIRECTION_FOUND);
            response.setLocationRef(new Reference(request.getResourceRef().toString() + "/").toString());
            return;
        } else {
            // 404
            throw new ResourceException(Status.CLIENT_ERROR_NOT_FOUND);
        }
    }
    // Check if this is a request to show the form for this interaction
    if ((request.getMethod().isSafe() && queryMethod.getParameterTypes().length != 0 && request.getResourceRef().getQuery() == null) || (!request.getMethod().isSafe() && queryMethod.getParameterTypes().length != 0 && !(request.getEntity().isAvailable() || request.getResourceRef().getQuery() != null || queryMethod.getParameterTypes()[0].equals(Response.class)))) {
        // Show form
        try {
            // Tell client to try again
            response.setStatus(Status.CLIENT_ERROR_UNPROCESSABLE_ENTITY);
            response.getAllowedMethods().add(org.restlet.data.Method.GET);
            response.getAllowedMethods().add(org.restlet.data.Method.POST);
            result(formForMethod(queryMethod));
        } catch (Exception e) {
            handleException(response, e);
        }
    } else {
        // Check timestamps
        ResourceValidity validity = (ResourceValidity) request.getAttributes().get(RESOURCE_VALIDITY);
        if (validity != null) {
            validity.checkRequest();
        }
        // Check method constraints
        if (!constraints.isValid(queryMethod, current(), module)) {
            throw new ResourceException(Status.CLIENT_ERROR_NOT_FOUND);
        }
        try {
            // Create argument
            Object[] arguments;
            if (queryMethod.getParameterTypes().length > 0) {
                try {
                    arguments = requestReader.readRequest(Request.getCurrent(), queryMethod);
                    if (arguments == null) {
                        // Show form
                        result(formForMethod(queryMethod));
                        return;
                    }
                } catch (IllegalArgumentException e) {
                    // Still missing some values - show form
                    result(formForMethod(queryMethod));
                    return;
                }
            } else {
                // No arguments to this query
                arguments = new Object[0];
            }
            // Invoke method
            Request.getCurrent().getAttributes().put(ARGUMENTS, arguments);
            Object result = queryMethod.invoke(this, arguments);
            if (result != null) {
                if (result instanceof Representation) {
                    response.setEntity((Representation) result);
                } else {
                    result(convert(result));
                }
            }
        } catch (Throwable e) {
            handleException(response, e);
        }
    }
}

Example 98 with Request

use of org.restlet.Request in project qi4j-sdk by Qi4j.

the class ContextResource method setResourceValidity.

// API methods
protected void setResourceValidity(EntityComposite entity) {
    Request request = Request.getCurrent();
    ResourceValidity validity = new ResourceValidity(entity, spi, request);
    request.getAttributes().put(RESOURCE_VALIDITY, validity);
}

Example 99 with Request

use of org.restlet.Request in project qi4j-sdk by Qi4j.

the class ContextResource method resource.

private void resource() {
    Request request = Request.getCurrent();
    Response response = Response.getCurrent();
    if (!request.getMethod().equals(org.restlet.data.Method.GET)) {
        response.setStatus(Status.CLIENT_ERROR_METHOD_NOT_ALLOWED);
        return;
    }
    ObjectSelection objectSelection = current();
    // Check for interaction->method mappings
    if (ResourceDelete.class.isAssignableFrom(getClass())) {
        response.getAllowedMethods().add(org.restlet.data.Method.DELETE);
    }
    if (ResourceUpdate.class.isAssignableFrom(getClass())) {
        response.getAllowedMethods().add(org.restlet.data.Method.PUT);
    }
    // Construct resource
    ValueBuilder<Resource> builder = module.newValueBuilder(Resource.class);
    List<Link> queriesProperty = builder.prototype().queries().get();
    for (Method query : resourceQueries) {
        if (constraints.isValid(query, objectSelection, module)) {
            ValueBuilder<Link> linkBuilder = module.newValueBuilder(Link.class);
            Link prototype = linkBuilder.prototype();
            prototype.classes().set("query");
            prototype.text().set(humanReadable(query.getName()));
            prototype.href().set(query.getName().toLowerCase());
            prototype.rel().set(query.getName().toLowerCase());
            prototype.id().set(query.getName().toLowerCase());
            queriesProperty.add(linkBuilder.newInstance());
        }
    }
    List<Link> commandsProperty = builder.prototype().commands().get();
    for (Method command : resourceCommands) {
        if (constraints.isValid(command, objectSelection, module)) {
            ValueBuilder<Link> linkBuilder = module.newValueBuilder(Link.class);
            Link prototype = linkBuilder.prototype();
            prototype.classes().set("command");
            prototype.text().set(humanReadable(command.getName()));
            prototype.href().set(command.getName().toLowerCase());
            prototype.rel().set(command.getName().toLowerCase());
            prototype.id().set(command.getName().toLowerCase());
            commandsProperty.add(linkBuilder.newInstance());
        }
    }
    List<Link> resourcesProperty = builder.prototype().resources().get();
    for (Method subResource : subResources.values()) {
        if (constraints.isValid(subResource, objectSelection, module)) {
            ValueBuilder<Link> linkBuilder = module.newValueBuilder(Link.class);
            Link prototype = linkBuilder.prototype();
            prototype.classes().set("resource");
            prototype.text().set(humanReadable(subResource.getName()));
            prototype.href().set(subResource.getName().toLowerCase() + "/");
            prototype.rel().set(subResource.getName().toLowerCase());
            prototype.id().set(subResource.getName().toLowerCase());
            resourcesProperty.add(linkBuilder.newInstance());
        }
    }
    try {
        Method indexMethod = resourceMethodQueries.get("index");
        if (indexMethod != null) {
            Object index = convert(indexMethod.invoke(this));
            if (index != null && index instanceof ValueComposite) {
                builder.prototype().index().set((ValueComposite) index);
            }
        }
    } catch (Throwable e) {
    // Ignore
    }
    try {
        responseWriter.writeResponse(builder.newInstance(), response);
    } catch (Throwable e) {
        handleException(response, e);
    }
}

Example 100 with Request

use of org.restlet.Request in project qi4j-sdk by Qi4j.

the class ContextResource method handleCommand.

private void handleCommand(String segment) {
    Request request = Request.getCurrent();
    Response response = Response.getCurrent();
    // Check if this is a request to show the form for this command
    Method interactionMethod = resourceMethodCommands.get(segment);
    if (shouldShowCommandForm(interactionMethod)) {
        // Show form
        // TODO This should check if method is idempotent
        response.getAllowedMethods().add(org.restlet.data.Method.POST);
        try {
            // Check if there is a query with this name - if so invoke it
            Method queryMethod = resourceMethodQueries.get(segment);
            if (queryMethod != null) {
                result(queryMethod.invoke(this));
            } else {
                request.setMethod(org.restlet.data.Method.POST);
                response.setStatus(Status.CLIENT_ERROR_UNPROCESSABLE_ENTITY);
                result(formForMethod(interactionMethod));
            }
        } catch (Exception e) {
            handleException(response, e);
        }
    } else {
        // Check timestamps
        ResourceValidity validity = (ResourceValidity) request.getAttributes().get(RESOURCE_VALIDITY);
        if (validity != null) {
            validity.checkRequest();
        }
        // Check method constraints
        if (!constraints.isValid(interactionMethod, current(), module)) {
            throw new ResourceException(Status.CLIENT_ERROR_NOT_FOUND);
        }
        // Create argument
        Object[] arguments = requestReader.readRequest(Request.getCurrent(), interactionMethod);
        Request.getCurrent().getAttributes().put(ARGUMENTS, arguments);
        // Invoke method
        try {
            Object result = interactionMethod.invoke(this, arguments);
            if (result != null) {
                if (result instanceof Representation) {
                    response.setEntity((Representation) result);
                } else {
                    result(convert(result));
                }
            }
        } catch (Throwable e) {
            handleException(response, e);
        }
    }
}