Using Nested Projections in Spring Data REST - java

How to get expected output below where OrderProjection uses ItemProjection to render Items using Spring Data REST
GET /orders/1?projection=with_items
Projections :
#Projection(name = "summary", types = Item.class)
public interface ItemProjection {
String getName();
}
#Projection(name = "with_item", types = Order.class)
public interface OrderProjection {
LocalDateTime getOrderedDate();
Status getStatus();
Set<ItemProjection> getItems(); // this is marshalling as Set<Item> (full Item graph)
}
Currently getting as output:
{
"status" : "PAYMENT_EXPECTED",
"orderedDate" : "2014-11-09T11:33:02.823",
"items" : [ {
"name" : "Java Chip",
"quantity" : 1,
"milk" : "SEMI",
"size" : "LARGE",
"price" : {
"currency" : "EUR",
"value" : 4.20
}
} ],
"_links" : {
"self" : {
"href" : "http://localhost:8080/orders/1{?projection}",
"templated" : true
},
"restbucks:items" : {
"href" : "http://localhost:8080/orders/1/items"
},
"curies" : [ {
"href" : "http://localhost:8080/alps/{rel}",
"name" : "restbucks",
"templated" : true
} ]
}
}
Expected Output:
{
"status" : "PAYMENT_EXPECTED",
"orderedDate" : "2014-11-09T11:33:02.823",
"items" : [ {
"name" : "Java Chip"
} ],
"_links" : {
"self" : {
"href" : "http://localhost:8080/orders/1{?projection}",
"templated" : true
},
"restbucks:items" : {
"href" : "http://localhost:8080/orders/1/items"
},
"curies" : [ {
"href" : "http://localhost:8080/alps/{rel}",
"name" : "restbucks",
"templated" : true
} ]
}
}

You're running into DATAREST-394 which has been fixed a few days a go and will be making it into 2.2.2 and 2.3 RC1. It's already available in the snapshots for said versions, feel free to give them a spin.

Related

Stop nested resources being mapped to '/' - Spring Boot

I'm currently learning about Spring Boot and am undertaking a project where users can make posts, view those posts, etc.
A user's post(s) can be viewed via http://localhost:8080/users/{user_id}/posts and http://localhost:8080/users/{user_id}/posts/{post_id}
As a result I have the following UserPostController
#RestController
#RequestMapping("/users")
public class UserPostController {
#Autowired
private UserPostService postService;
#GetMapping("/{user_id}/posts")
public List<Post> retrieveUserPosts(#PathVariable int user_id) {
return postService.retrieveUserPostList(user_id);
}
#GetMapping("/{user_id}/posts/{post_id}")
public EntityModel<Post> retrieveUserPost(#PathVariable int user_id, #PathVariable int post_id) {
return postService.retrieveUserPost(user_id, post_id);
}
#PostMapping("/{user_id}/posts")
public ResponseEntity<Object> createUserPost(#PathVariable int user_id, #Valid #RequestBody Post post) {
return postService.saveUserPost(user_id, post);
}
}
Every request to the links work correctly. For example a GET request to http://localhost:8080/users/1/posts returns [{"id":1,"description":"This is a post"},{"id":2,"description":"This is another post"}], which is the expected action.
However, for some reason I am able to visit http://localhost:8080/posts which then returns a list of all posts:
{
"_embedded" : {
"posts" : [ {
"description" : "This is a post",
"_links" : {
"self" : {
"href" : "http://localhost:8080/posts/1"
},
"post" : {
"href" : "http://localhost:8080/posts/1"
},
"user" : {
"href" : "http://localhost:8080/posts/1/user"
}
}
}, {
"description" : "This another post",
"_links" : {
"self" : {
"href" : "http://localhost:8080/posts/2"
},
"post" : {
"href" : "http://localhost:8080/posts/2"
},
"user" : {
"href" : "http://localhost:8080/posts/2/user"
}
}
}, {
"description" : "This is yet another post",
"_links" : {
"self" : {
"href" : "http://localhost:8080/posts/3"
},
"post" : {
"href" : "http://localhost:8080/posts/3"
},
"user" : {
"href" : "http://localhost:8080/posts/3/user"
}
}
} ]
},
"_links" : {
"self" : {
"href" : "http://localhost:8080/posts"
},
"profile" : {
"href" : "http://localhost:8080/profile/posts"
}
},
"page" : {
"size" : 20,
"totalElements" : 3,
"totalPages" : 1,
"number" : 0
}
}
Through HATEOAS I am able to also see available links of the format http://localhost:8080/posts/{user_id}/user which I have also not created methods for, but they still exist.
Is there a reason why these unwanted routes exist? If so how do I change this?
Thank you :)

Populate vertical table in JSP

I'm new in web development, I need your help & suggestion to make with easy ways vertical table in JSP or Javascript from the JSON data, like below image:
This is for table from database:
And here for the JSON data:
{
"_embedded" : {
"shipping" : [ {
"dayCd" : "1",
"shiftCd" : "1",
"qty" : "40",
"productName" : "Prod1",
"_links" : {
"self" : {
"href" : "http://127.0.0.1:8080/shipping/1001"
},
"shipping" : {
"href" : "http://127.0.0.1:8080/shipping/1001"
}
}
}, {
"dayCd" : "2",
"shiftCd" : "1",
"qty" : "40",
"productName" : "Prod1",
"_links" : {
"self" : {
"href" : "http://127.0.0.1:8080/shipping/1002"
},
"shipping" : {
"href" : "http://127.0.0.1:8080/shipping/1002"
}
}
}, {
"dayCd" : "3",
"shiftCd" : "1",
"qty" : "40",
"productName" : "Prod1",
"_links" : {
"self" : {
"href" : "http://127.0.0.1:8080/shipping/1003"
},
"shipping" : {
"href" : "http://127.0.0.1:8080/shipping/1003"
}
}
..........

Java Spring Boot: How to enable pagination for dependency request

I am building an REST API with Spring Boot. The question is really simple, how can I enable pagination for dependency request?
This how the results look for a non dependency request http://localhost:8080/dimensionAttributes:
{
"_embedded" : {
"dimensionAttribute" : [ {
"name" : "SollFreitag",
"description" : "Sollstunden Freitags",
"dataType" : "DEC",
"hasHistory" : true,
"hasTrigger" : null,
"allowInterface" : true,
"readOnly" : null,
"discrete" : null,
"mandatory" : false,
"_links" : {
"self" : {
"href" : "http://localhost:8080/dimensionAttributes/20"
},
"dimensionAttribute" : {
"href" : "http://localhost:8080/dimensionAttributes/20"
},
"dimension" : {
"href" : "http://localhost:8080/dimensionAttributes/20/dimension"
},
"dimensionAttributeValue" : {
"href" : "http://localhost:8080/dimensionAttributes/20/dimensionAttributeValue"
}
}
} ]
},
"_links" : {
"first" : {
"href" : "http://localhost:8080/dimensionAttributes?page=0&size=20"
},
"self" : {
"href" : "http://localhost:8080/dimensionAttributes{?page,size,sort}",
"templated" : true
},
"next" : {
"href" : "http://localhost:8080/dimensionAttributes?page=1&size=20"
},
"last" : {
"href" : "http://localhost:8080/dimensionAttributes?page=1&size=20"
},
"profile" : {
"href" : "http://localhost:8080/profile/dimensionAttributes"
},
"search" : {
"href" : "http://localhost:8080/dimensionAttributes/search"
}
},
"page" : {
"size" : 20,
"totalElements" : 35,
"totalPages" : 2,
"number" : 0
}
}
But running an dependency request (in this case its "dimensionAttributeValue" ) http://localhost:8080/dimensionAttributes/20/dimensionAttributeValue, the page section, as well as the next url and other links are missing.
{
"_embedded" : {
"dimensionAttributeValue" : [ {
"chrValue" : "Mihal, Matus",
"intValue" : null,
"decValue" : null,
"datValue" : null,
"startDate" : null,
"_links" : {
"self" : {
"href" : "http://localhost:8080/dimensionAttributeValues/18993"
},
"dimensionAttributeValue" : {
"href" : "http://localhost:8080/dimensionAttributeValues/18993"
},
"lstValue" : {
"href" : "http://localhost:8080/dimensionAttributeValues/18993/lstValue"
},
"dimensionAttribute" : {
"href" : "http://localhost:8080/dimensionAttributeValues/18993/dimensionAttribute"
},
"masterData" : {
"href" : "http://localhost:8080/dimensionAttributeValues/18993/masterData"
}
}
} ]
},
"_links" : {
"self" : {
"href" : "http://localhost:8080/dimensionAttributes/1/dimensionAttributeValue?page=0,&size=1"
}
}
}

How to return collection of entities without pagination? Spring Boot REST

I have simple Spring Boot application. My controller looks like this:
#RequestMapping(value = "/", method = RequestMethod.GET)
public List<Employee> getAllEmployees() {
return employeeRepository.findAll();
}
This code produce this json:
{
"_embedded" : {
"employees" : [ {
"firstName" : "firstName1",
"lastName" : "lastName1",
"_links" : {
"self" : {
"href" : "http://localhost:8080/employees/1"
},
"employee" : {
"href" : "http://localhost:8080/employees/1"
}
}
}, {
"firstName" : "firstName 1",
"lastName" : "lastName 1",
"_links" : {
"self" : {
"href" : "http://localhost:8080/employees/2"
},
"employee" : {
"href" : "http://localhost:8080/employees/2"
}
}
}, {
"firstName" : "firstName 3",
"lastName" : "lastName 3",
"_links" : {
"self" : {
"href" : "http://localhost:8080/employees/4"
},
"employee" : {
"href" : "http://localhost:8080/employees/4"
}
},
"_links" : {
"self" : {
"href" : "http://localhost:8080/employees"
},
"profile" : {
"href" : "http://localhost:8080/profile/employees"
}
},
"page" : {
"size" : 20,
"totalElements" : 7,
"totalPages" : 1,
"number" : 0
}
}
But I need something like this:
[
{
"firstName" : "firstName1",
"lastName" : "lastName1",
},
{
"firstName" : "firstName2",
"lastName" : "lastName2",
},
]
The solution is removing spring-boot-starter-data-rest module.

ElasticSearch Querying and OR

Here's my mapping
{
"app" : {
"mappings" : {
"patient" : {
"properties" : {
"LastName" : {
"type" : "string"
},
"consultations" : {
"type" : "nested",
"properties" : {
"deleted" : {
"type" : "boolean"
},
"diagnosis" : {
"type" : "string"
},
"documentDate" : {
"type" : "date",
"format" : "dateOptionalTime"
},
"firstName" : {
"type" : "string"
},
"lastName" : {
"type" : "string"
},
"middleName" : {
"type" : "string"
},
"prescriptions" : {
"type" : "string"
}
}
},
"firstName" : {
"type" : "string"
},
"gender" : {
"type" : "string"
},
"id" : {
"type" : "string",
"index" : "not_analyzed"
},
"lastName" : {
"type" : "string"
},
"middleName" : {
"type" : "string"
},
"owner" : {
"type" : "string",
"index" : "not_analyzed"
},
"patientPin" : {
"type" : "string"
}
}
}
}
}
}
Then let's say I have this data
{
"id":"21",
"firstName":"Scrappy",
"patientPin":"2012010000000021",
"middleName":"D",
"consultations":[
{
"id":null,
"prescriptions":[
"GADOTERIC Acid DOTAREM"
],
"diagnosis":[
"Kawasaki's Disease",
"Alcohol Intoxication"
],
"documentDate":"2014-07-31T13:19:00.000+08:00",
"deleted":false,
"lastName":"Doo",
"firstName":"Scrappy",
"middleName":"D"
}
],
"owner":"TENANT1",
"gender":"FEMALE",
"lastName":"Doo"
}
{
"id":"100066",
"firstName":"Kyel ",
"patientPin":"201408000001",
"middleName":"John ",
"consultations":[
{
"id":null,
"prescriptions":[
],
"diagnosis":[
"headache"
],
"documentDate":"2014-08-05T10:10:00.000+08:00",
"deleted":false,
"lastName":"David",
"firstName":"Mika",
"middleName":"John "
}
],
"owner":"TENANT1",
"gender":"MALE",
"lastName":"David"
}
How do I query patients that has consultations that has a "headache" OR "Alcohol Intoxication"?
For your result I am suggesting you to use filter.
You can achieve this using,
For or, terms filter match document with any of value provided (which means does or for values)
client.prepareSearch("app").setTypes("patient").setPostFilter(
FilterBuilders.termsFilter("consultations.diagnosis","headache","Alcohol Intoxication")
);
For and,
client.prepareSearch("app").setTypes("patient").setPostFilter(
FilterBuilders.andFilter(
FilterBuilders.termsFilter("consultations.diagnosis","headache"),
FilterBuilders.termsFilter("consultations.diagnosis","Alcohol Intoxication")
)
);
For this, Any value you want to filter should be index : not_analyzed .
try learning elasticsearch.

Categories