Get keys from nested JSONObject fluently
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I'm trying to extract a value from a nested JSONObject, say "id". I'm using org.json.simple
package and my code looks like:
JSONArray entries = (JSONArray) response.get("entries");
JSONObject entry = (JSONObject) entries.get(0);
JSONArray runs = (JSONArray) entry.get("runs");
JSONObject run = (JSONObject) runs.get(0);
String run_id = run.get("id").toString();
where response is a JSONObject.
Is it possible to refactor the code using Fluent Interface Pattern so the code is more readable? For example,
String run_id = response.get("entries")
.get(0)
.get("runs")
.get(0)
.get("id").toString();
Thanks in advance.
java fluent-interface
add a comment |
I'm trying to extract a value from a nested JSONObject, say "id". I'm using org.json.simple
package and my code looks like:
JSONArray entries = (JSONArray) response.get("entries");
JSONObject entry = (JSONObject) entries.get(0);
JSONArray runs = (JSONArray) entry.get("runs");
JSONObject run = (JSONObject) runs.get(0);
String run_id = run.get("id").toString();
where response is a JSONObject.
Is it possible to refactor the code using Fluent Interface Pattern so the code is more readable? For example,
String run_id = response.get("entries")
.get(0)
.get("runs")
.get(0)
.get("id").toString();
Thanks in advance.
java fluent-interface
add a comment |
I'm trying to extract a value from a nested JSONObject, say "id". I'm using org.json.simple
package and my code looks like:
JSONArray entries = (JSONArray) response.get("entries");
JSONObject entry = (JSONObject) entries.get(0);
JSONArray runs = (JSONArray) entry.get("runs");
JSONObject run = (JSONObject) runs.get(0);
String run_id = run.get("id").toString();
where response is a JSONObject.
Is it possible to refactor the code using Fluent Interface Pattern so the code is more readable? For example,
String run_id = response.get("entries")
.get(0)
.get("runs")
.get(0)
.get("id").toString();
Thanks in advance.
java fluent-interface
I'm trying to extract a value from a nested JSONObject, say "id". I'm using org.json.simple
package and my code looks like:
JSONArray entries = (JSONArray) response.get("entries");
JSONObject entry = (JSONObject) entries.get(0);
JSONArray runs = (JSONArray) entry.get("runs");
JSONObject run = (JSONObject) runs.get(0);
String run_id = run.get("id").toString();
where response is a JSONObject.
Is it possible to refactor the code using Fluent Interface Pattern so the code is more readable? For example,
String run_id = response.get("entries")
.get(0)
.get("runs")
.get(0)
.get("id").toString();
Thanks in advance.
java fluent-interface
java fluent-interface
asked Jan 4 at 10:30
Eric HungEric Hung
16516
16516
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
Here's a possibility.
class FluentJson {
private Object value;
public FluentJson(Object value) {
this.value = value;
}
public FluentJson get(int index) throws JSONException {
JSONArray a = (JSONArray) value;
return new FluentJson(a.get(index));
}
public FluentJson get(String key) throws JSONException {
JSONObject o = (JSONObject) value;
return new FluentJson(o.get(key));
}
public String toString() {
return value == null ? null : value.toString();
}
public Number toNumber() {
return (Number) value;
}
}
You can use it like this
String run_id = new FluentJson(response)
.get("entries")
.get(0)
.get("runs")
.get(0)
.get("id").toString();
How about returningthis
by addingvalue = a
andvalue = o
after a and o are assigned respectively?
– Eric Hung
Jan 7 at 4:04
1
That also works.
– Leo Aso
Jan 7 at 9:13
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
Here's a possibility.
class FluentJson {
private Object value;
public FluentJson(Object value) {
this.value = value;
}
public FluentJson get(int index) throws JSONException {
JSONArray a = (JSONArray) value;
return new FluentJson(a.get(index));
}
public FluentJson get(String key) throws JSONException {
JSONObject o = (JSONObject) value;
return new FluentJson(o.get(key));
}
public String toString() {
return value == null ? null : value.toString();
}
public Number toNumber() {
return (Number) value;
}
}
You can use it like this
String run_id = new FluentJson(response)
.get("entries")
.get(0)
.get("runs")
.get(0)
.get("id").toString();
How about returningthis
by addingvalue = a
andvalue = o
after a and o are assigned respectively?
– Eric Hung
Jan 7 at 4:04
1
That also works.
– Leo Aso
Jan 7 at 9:13
add a comment |
Here's a possibility.
class FluentJson {
private Object value;
public FluentJson(Object value) {
this.value = value;
}
public FluentJson get(int index) throws JSONException {
JSONArray a = (JSONArray) value;
return new FluentJson(a.get(index));
}
public FluentJson get(String key) throws JSONException {
JSONObject o = (JSONObject) value;
return new FluentJson(o.get(key));
}
public String toString() {
return value == null ? null : value.toString();
}
public Number toNumber() {
return (Number) value;
}
}
You can use it like this
String run_id = new FluentJson(response)
.get("entries")
.get(0)
.get("runs")
.get(0)
.get("id").toString();
How about returningthis
by addingvalue = a
andvalue = o
after a and o are assigned respectively?
– Eric Hung
Jan 7 at 4:04
1
That also works.
– Leo Aso
Jan 7 at 9:13
add a comment |
Here's a possibility.
class FluentJson {
private Object value;
public FluentJson(Object value) {
this.value = value;
}
public FluentJson get(int index) throws JSONException {
JSONArray a = (JSONArray) value;
return new FluentJson(a.get(index));
}
public FluentJson get(String key) throws JSONException {
JSONObject o = (JSONObject) value;
return new FluentJson(o.get(key));
}
public String toString() {
return value == null ? null : value.toString();
}
public Number toNumber() {
return (Number) value;
}
}
You can use it like this
String run_id = new FluentJson(response)
.get("entries")
.get(0)
.get("runs")
.get(0)
.get("id").toString();
Here's a possibility.
class FluentJson {
private Object value;
public FluentJson(Object value) {
this.value = value;
}
public FluentJson get(int index) throws JSONException {
JSONArray a = (JSONArray) value;
return new FluentJson(a.get(index));
}
public FluentJson get(String key) throws JSONException {
JSONObject o = (JSONObject) value;
return new FluentJson(o.get(key));
}
public String toString() {
return value == null ? null : value.toString();
}
public Number toNumber() {
return (Number) value;
}
}
You can use it like this
String run_id = new FluentJson(response)
.get("entries")
.get(0)
.get("runs")
.get(0)
.get("id").toString();
answered Jan 4 at 11:37
Leo AsoLeo Aso
5,57711229
5,57711229
How about returningthis
by addingvalue = a
andvalue = o
after a and o are assigned respectively?
– Eric Hung
Jan 7 at 4:04
1
That also works.
– Leo Aso
Jan 7 at 9:13
add a comment |
How about returningthis
by addingvalue = a
andvalue = o
after a and o are assigned respectively?
– Eric Hung
Jan 7 at 4:04
1
That also works.
– Leo Aso
Jan 7 at 9:13
How about returning
this
by adding value = a
and value = o
after a and o are assigned respectively?– Eric Hung
Jan 7 at 4:04
How about returning
this
by adding value = a
and value = o
after a and o are assigned respectively?– Eric Hung
Jan 7 at 4:04
1
1
That also works.
– Leo Aso
Jan 7 at 9:13
That also works.
– Leo Aso
Jan 7 at 9:13
add a comment |
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