Webflux webclient and generic types
I am trying to build a generic class that will consume a REST api. The api returns lists of objects depending on the url.
I have built a Generic class
public class RestConsumer<T> {
WebClient client;
public RestConsumer(){
//Initialize client
}
public List<T> getList(String relativeUrl){
try{
return client
.get()
.uri(relativeUrl)
.retrieve()
.bodyToMono(new ParameterizeTypeReference<List<T>> (){}
.block()
catch(Exception e){}
}
}
The problem is that T is replaced by Object at compilation time and the whole thing return a List of LinkedHashMap instead of a List of T.
I tried lots of workarounds but no luck. Any suggestions?
java spring jackson spring-webflux
asked Nov 19 '18 at 15:45
liorc2121liorc2121
1
add a comment |
I am trying to build a generic class that will consume a REST api. The api returns lists of objects depending on the url.
I have built a Generic class
public class RestConsumer<T> {
WebClient client;
public RestConsumer(){
//Initialize client
}
public List<T> getList(String relativeUrl){
try{
return client
.get()
.uri(relativeUrl)
.retrieve()
.bodyToMono(new ParameterizeTypeReference<List<T>> (){}
.block()
catch(Exception e){}
}
}
The problem is that T is replaced by Object at compilation time and the whole thing return a List of LinkedHashMap instead of a List of T.
I tried lots of workarounds but no luck. Any suggestions?
java spring jackson spring-webflux
asked Nov 19 '18 at 15:45
liorc2121liorc2121
1
add a comment |
I am trying to build a generic class that will consume a REST api. The api returns lists of objects depending on the url.
I have built a Generic class
public class RestConsumer<T> {
WebClient client;
public RestConsumer(){
//Initialize client
}
public List<T> getList(String relativeUrl){
try{
return client
.get()
.uri(relativeUrl)
.retrieve()
.bodyToMono(new ParameterizeTypeReference<List<T>> (){}
.block()
catch(Exception e){}
}
}
The problem is that T is replaced by Object at compilation time and the whole thing return a List of LinkedHashMap instead of a List of T.
I tried lots of workarounds but no luck. Any suggestions?
java spring jackson spring-webflux
asked Nov 19 '18 at 15:45
liorc2121liorc2121
1
I am trying to build a generic class that will consume a REST api. The api returns lists of objects depending on the url.
I have built a Generic class
public class RestConsumer<T> {
WebClient client;
public RestConsumer(){
//Initialize client
}
public List<T> getList(String relativeUrl){
try{
return client
.get()
.uri(relativeUrl)
.retrieve()
.bodyToMono(new ParameterizeTypeReference<List<T>> (){}
.block()
catch(Exception e){}
}
}
The problem is that T is replaced by Object at compilation time and the whole thing return a List of LinkedHashMap instead of a List of T.
I tried lots of workarounds but no luck. Any suggestions?
java spring jackson spring-webflux
java spring jackson spring-webflux
asked Nov 19 '18 at 15:45
liorc2121liorc2121
1
asked Nov 19 '18 at 15:45
liorc2121liorc2121
1
asked Nov 19 '18 at 15:45
liorc2121liorc2121
1
asked Nov 19 '18 at 15:45
liorc2121liorc2121
1
asked Nov 19 '18 at 15:45
liorc2121liorc2121
1
1
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
Create a class (say CollectionT) and add List of T as an attribute there. Then You can easily cast it into Mono, which on, .map(x -> x.getList()) will return a Mono of List of T. It also makes your code look more non-blocking by avoiding, .block()
Here goes the code: ->
public class CollectionT {
private List<T> data;
//getters
public List<T> getData(){
return data;
}
//setters
...
}
public class RestConsumer<T> {
WebClient client = WebClient.create();
public RestConsumer(){
//Initialize client
}
public List<T> getList(String relativeUrl){
return client
.get()
.uri(relativeUrl)
.retrieve()
.bodyToMono(CollectionT.class)
.map(x -> x.getData());
}
}
answered Nov 26 '18 at 8:53
AshishAshish
637
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
Create a class (say CollectionT) and add List of T as an attribute there. Then You can easily cast it into Mono, which on, .map(x -> x.getList()) will return a Mono of List of T. It also makes your code look more non-blocking by avoiding, .block()
Here goes the code: ->
public class CollectionT {
private List<T> data;
//getters
public List<T> getData(){
return data;
}
//setters
...
}
public class RestConsumer<T> {
WebClient client = WebClient.create();
public RestConsumer(){
//Initialize client
}
public List<T> getList(String relativeUrl){
return client
.get()
.uri(relativeUrl)
.retrieve()
.bodyToMono(CollectionT.class)
.map(x -> x.getData());
}
}
answered Nov 26 '18 at 8:53
AshishAshish
637
add a comment |
Create a class (say CollectionT) and add List of T as an attribute there. Then You can easily cast it into Mono, which on, .map(x -> x.getList()) will return a Mono of List of T. It also makes your code look more non-blocking by avoiding, .block()
Here goes the code: ->
public class CollectionT {
private List<T> data;
//getters
public List<T> getData(){
return data;
}
//setters
...
}
public class RestConsumer<T> {
WebClient client = WebClient.create();
public RestConsumer(){
//Initialize client
}
public List<T> getList(String relativeUrl){
return client
.get()
.uri(relativeUrl)
.retrieve()
.bodyToMono(CollectionT.class)
.map(x -> x.getData());
}
}
answered Nov 26 '18 at 8:53
AshishAshish
637
add a comment |
Create a class (say CollectionT) and add List of T as an attribute there. Then You can easily cast it into Mono, which on, .map(x -> x.getList()) will return a Mono of List of T. It also makes your code look more non-blocking by avoiding, .block()
Here goes the code: ->
public class CollectionT {
private List<T> data;
//getters
public List<T> getData(){
return data;
}
//setters
...
}
public class RestConsumer<T> {
WebClient client = WebClient.create();
public RestConsumer(){
//Initialize client
}
public List<T> getList(String relativeUrl){
return client
.get()
.uri(relativeUrl)
.retrieve()
.bodyToMono(CollectionT.class)
.map(x -> x.getData());
}
}
answered Nov 26 '18 at 8:53
AshishAshish
637
Create a class (say CollectionT) and add List of T as an attribute there. Then You can easily cast it into Mono, which on, .map(x -> x.getList()) will return a Mono of List of T. It also makes your code look more non-blocking by avoiding, .block()
Here goes the code: ->
public class CollectionT {
private List<T> data;
//getters
public List<T> getData(){
return data;
}
//setters
...
}
public class RestConsumer<T> {
WebClient client = WebClient.create();
public RestConsumer(){
//Initialize client
}
public List<T> getList(String relativeUrl){
return client
.get()
.uri(relativeUrl)
.retrieve()
.bodyToMono(CollectionT.class)
.map(x -> x.getData());
}
}
answered Nov 26 '18 at 8:53
AshishAshish
637
answered Nov 26 '18 at 8:53
AshishAshish
637
answered Nov 26 '18 at 8:53
AshishAshish
637
answered Nov 26 '18 at 8:53
AshishAshish
637
637
add a comment |
add a comment |
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