How to continue processing next items on exception for the following code snippet?
0
When I run the code, the output coming is as follows
(a)Test(a=100)
(b)error here- java.lang.NullPointerException
In the current output, whenever the second item throws an exception, the flowable stop processing. But I want to process the third object like these
(a)Test(a=100)
(b)error here {} java.lang.NullPointerException
(c)Test(a=200)
public class Test {
Integer a;
public Integer getA() {
return a * 10;
}
public static void main(String args) {
Test test = new Test(10);
Test test2 = new Test(null); //this object throws exception when it enters flowable
Test test3 = new Test(20);
List<Test> strings = Arrays.asList(test, test2, test3);
Flowable.fromCallable(() -> strings)
.flatMap(s -> Flowable.fromIterable(s)
.flatMap(a -> {
System.out.println(a);
return Flowable.just(a);
})
.onErrorResumeNext(r -> {
System.out.println("error here " + r);
return Flowable.empty();
})
)
.onErrorResumeNext(s -> {
return Flowable.empty();
})
.subscribe();
}`
}
I tried above approach but does not work.
java error-handling nullpointerexception rx-java2
edited Dec 8 '18 at 18:30
Filip
3,30931226
asked Nov 14 '18 at 18:00
prabhuprabhu
1
add a comment |
0
When I run the code, the output coming is as follows
(a)Test(a=100)
(b)error here- java.lang.NullPointerException
In the current output, whenever the second item throws an exception, the flowable stop processing. But I want to process the third object like these
(a)Test(a=100)
(b)error here {} java.lang.NullPointerException
(c)Test(a=200)
public class Test {
Integer a;
public Integer getA() {
return a * 10;
}
public static void main(String args) {
Test test = new Test(10);
Test test2 = new Test(null); //this object throws exception when it enters flowable
Test test3 = new Test(20);
List<Test> strings = Arrays.asList(test, test2, test3);
Flowable.fromCallable(() -> strings)
.flatMap(s -> Flowable.fromIterable(s)
.flatMap(a -> {
System.out.println(a);
return Flowable.just(a);
})
.onErrorResumeNext(r -> {
System.out.println("error here " + r);
return Flowable.empty();
})
)
.onErrorResumeNext(s -> {
return Flowable.empty();
})
.subscribe();
}`
}
I tried above approach but does not work.
java error-handling nullpointerexception rx-java2
edited Dec 8 '18 at 18:30
Filip
3,30931226
asked Nov 14 '18 at 18:00
prabhuprabhu
1
1
Why you don't want filterTest(null)items? That should solve your problem without any complicated error handling
– ConstOrVar
Nov 14 '18 at 18:56
Here, Test(null) is just for example. I am facing an exception where I can't add a filter. So, I need to handle exception when it comes and continue processing other items
– prabhu
Nov 15 '18 at 19:17
There is overloadedflatMap(Function<? super T,? extends ObservableSource<? extends R>> mapper, boolean delayErrors)that allows delay errors . You can pass delayErros = true in that case.
– ConstOrVar
Nov 15 '18 at 19:44
add a comment |
0
0
0
When I run the code, the output coming is as follows
(a)Test(a=100)
(b)error here- java.lang.NullPointerException
In the current output, whenever the second item throws an exception, the flowable stop processing. But I want to process the third object like these
(a)Test(a=100)
(b)error here {} java.lang.NullPointerException
(c)Test(a=200)
public class Test {
Integer a;
public Integer getA() {
return a * 10;
}
public static void main(String args) {
Test test = new Test(10);
Test test2 = new Test(null); //this object throws exception when it enters flowable
Test test3 = new Test(20);
List<Test> strings = Arrays.asList(test, test2, test3);
Flowable.fromCallable(() -> strings)
.flatMap(s -> Flowable.fromIterable(s)
.flatMap(a -> {
System.out.println(a);
return Flowable.just(a);
})
.onErrorResumeNext(r -> {
System.out.println("error here " + r);
return Flowable.empty();
})
)
.onErrorResumeNext(s -> {
return Flowable.empty();
})
.subscribe();
}`
}
I tried above approach but does not work.
java error-handling nullpointerexception rx-java2
edited Dec 8 '18 at 18:30
Filip
3,30931226
asked Nov 14 '18 at 18:00
prabhuprabhu
1
When I run the code, the output coming is as follows
(a)Test(a=100)
(b)error here- java.lang.NullPointerException
In the current output, whenever the second item throws an exception, the flowable stop processing. But I want to process the third object like these
(a)Test(a=100)
(b)error here {} java.lang.NullPointerException
(c)Test(a=200)
public class Test {
Integer a;
public Integer getA() {
return a * 10;
}
public static void main(String args) {
Test test = new Test(10);
Test test2 = new Test(null); //this object throws exception when it enters flowable
Test test3 = new Test(20);
List<Test> strings = Arrays.asList(test, test2, test3);
Flowable.fromCallable(() -> strings)
.flatMap(s -> Flowable.fromIterable(s)
.flatMap(a -> {
System.out.println(a);
return Flowable.just(a);
})
.onErrorResumeNext(r -> {
System.out.println("error here " + r);
return Flowable.empty();
})
)
.onErrorResumeNext(s -> {
return Flowable.empty();
})
.subscribe();
}`
}
I tried above approach but does not work.
java error-handling nullpointerexception rx-java2
java error-handling nullpointerexception rx-java2
edited Dec 8 '18 at 18:30
Filip
3,30931226
asked Nov 14 '18 at 18:00
prabhuprabhu
1
edited Dec 8 '18 at 18:30
Filip
3,30931226
asked Nov 14 '18 at 18:00
prabhuprabhu
1
edited Dec 8 '18 at 18:30
Filip
3,30931226
edited Dec 8 '18 at 18:30
Filip
3,30931226
edited Dec 8 '18 at 18:30
Filip
3,30931226
3,30931226
asked Nov 14 '18 at 18:00
prabhuprabhu
1
asked Nov 14 '18 at 18:00
prabhuprabhu
1
asked Nov 14 '18 at 18:00
prabhuprabhu
1
1
1
Why you don't want filterTest(null)items? That should solve your problem without any complicated error handling
– ConstOrVar
Nov 14 '18 at 18:56
Here, Test(null) is just for example. I am facing an exception where I can't add a filter. So, I need to handle exception when it comes and continue processing other items
– prabhu
Nov 15 '18 at 19:17
There is overloadedflatMap(Function<? super T,? extends ObservableSource<? extends R>> mapper, boolean delayErrors)that allows delay errors . You can pass delayErros = true in that case.
– ConstOrVar
Nov 15 '18 at 19:44
add a comment |
1
Why you don't want filterTest(null)items? That should solve your problem without any complicated error handling
– ConstOrVar
Nov 14 '18 at 18:56
Here, Test(null) is just for example. I am facing an exception where I can't add a filter. So, I need to handle exception when it comes and continue processing other items
– prabhu
Nov 15 '18 at 19:17
There is overloadedflatMap(Function<? super T,? extends ObservableSource<? extends R>> mapper, boolean delayErrors)that allows delay errors . You can pass delayErros = true in that case.
– ConstOrVar
Nov 15 '18 at 19:44
1
1
Why you don't want filter
Test(null) items? That should solve your problem without any complicated error handling– ConstOrVar
Nov 14 '18 at 18:56
Why you don't want filter
Test(null) items? That should solve your problem without any complicated error handling– ConstOrVar
Nov 14 '18 at 18:56
Here, Test(null) is just for example. I am facing an exception where I can't add a filter. So, I need to handle exception when it comes and continue processing other items
– prabhu
Nov 15 '18 at 19:17
Here, Test(null) is just for example. I am facing an exception where I can't add a filter. So, I need to handle exception when it comes and continue processing other items
– prabhu
Nov 15 '18 at 19:17
There is overloaded
flatMap(Function<? super T,? extends ObservableSource<? extends R>> mapper, boolean delayErrors) that allows delay errors . You can pass delayErros = true in that case.– ConstOrVar
Nov 15 '18 at 19:44
There is overloaded
flatMap(Function<? super T,? extends ObservableSource<? extends R>> mapper, boolean delayErrors) that allows delay errors . You can pass delayErros = true in that case.– ConstOrVar
Nov 15 '18 at 19:44
add a comment |
0
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1
Why you don't want filter
Test(null)items? That should solve your problem without any complicated error handling– ConstOrVar
Nov 14 '18 at 18:56
Here, Test(null) is just for example. I am facing an exception where I can't add a filter. So, I need to handle exception when it comes and continue processing other items
– prabhu
Nov 15 '18 at 19:17
There is overloaded
flatMap(Function<? super T,? extends ObservableSource<? extends R>> mapper, boolean delayErrors)that allows delay errors . You can pass delayErros = true in that case.– ConstOrVar
Nov 15 '18 at 19:44