Github user gauravgopi123 commented on a diff in the pull request:
https://github.com/apache/incubator-apex-malhar/pull/103#discussion_r45100675
--- Diff:
library/src/main/java/com/datatorrent/lib/appdata/gpo/GPOUtils.java ---
@@ -304,52 +355,216 @@ else if(type == Type.CHAR) {
+ " that is not one character
long.");
}
- gpo.setField(field, val.charAt(0));
- }
- else if(type == Type.STRING) {
+ return val.charAt(0);
+ } else if (type == Type.STRING) {
String val;
try {
val = jo.getString(field);
- }
- catch(JSONException ex) {
+ } catch (JSONException ex) {
throw new IllegalArgumentException("The key "
+ field
+ " does not have a valid
string value.",
ex);
}
- gpo.setField(field, val);
- }
- else if(type == Type.DOUBLE) {
+ return val;
+ } else if (type == Type.DOUBLE) {
Double val;
try {
val = jo.getDouble(field);
- }
- catch(JSONException ex) {
+ } catch (JSONException ex) {
throw new IllegalArgumentException("The key "
+ field
+ " does not have a valid
double value.",
ex);
}
- gpo.setFieldGeneric(field, val);
- }
- else if(type == Type.FLOAT) {
+ return val;
+ } else if (type == Type.FLOAT) {
Float val;
try {
val = (float)jo.getDouble(field);
- }
- catch(JSONException ex) {
+ } catch (JSONException ex) {
throw new IllegalArgumentException("The key "
+ field
+ " does not have a valid
double value.",
ex);
}
- gpo.setFieldGeneric(field, val);
+ return val;
+ } else {
+ throw new UnsupportedOperationException("The type " + type + " is
not supported.");
+ }
+ }
+
+ /**
+ * This method gets an object of the given {@link Type} from the given
{@link JSONArray} at the
+ * given index.
+ * @param type The {@link Type} of the object to retrieve from the
{@link JSONArray}.
+ * @param ja The {@link JSONArray} to retrieve objects from.
+ * @param index The index of the object in the {@link JSONArray} to
retrieve.
+ * @return The object retrieved from the {@link JSONArray}.
+ */
+ public static Object getFieldFromJSON(Type type, JSONArray ja, int index)
+ {
+ if (type == Type.BOOLEAN) {
+ Boolean val;
+
+ try {
+ val = ja.getBoolean(index);
+ } catch (JSONException ex) {
+ throw new IllegalArgumentException("The index " + index + " does
not have a valid bool value.", ex);
+ }
+
+ return val;
+ } else if (type == Type.BYTE) {
+ int val;
+
+ try {
+ val = ja.getInt(index);
+ } catch (JSONException ex) {
+ throw new IllegalArgumentException("The index "
+ + index
+ + " does not have a valid byte
value.", ex);
+ }
+
+ if (val < (int)Byte.MIN_VALUE) {
+ throw new IllegalArgumentException("The index "
+ + index
+ + " has a value "
+ + val
+ + " which is too small to fit
into a byte.");
+ }
+
+ if (val > (int)Byte.MAX_VALUE) {
+ throw new IllegalArgumentException("The index "
+ + index
+ + " has a value "
+ + val
+ + " which is too larg to fit
into a byte.");
+ }
+
+ return ((byte)val);
+ } else if (type == Type.SHORT) {
+ int val;
+
+ try {
+ val = ja.getInt(index);
+ } catch (JSONException ex) {
+ throw new IllegalArgumentException("The index "
+ + index
+ + " does not have a valid short
value.",
+ ex);
+ }
+
+ if (val < (int)Short.MIN_VALUE) {
+ throw new IllegalArgumentException("The index "
+ + index
+ + " has a value "
+ + val
+ + " which is too small to fit
into a short.");
+ }
+
+ if (val > (int)Short.MAX_VALUE) {
+ throw new IllegalArgumentException("The index "
+ + index
+ + " has a value "
+ + val
+ + " which is too large to fit
into a short.");
+ }
+
+ return ((short)val);
+ } else if (type == Type.INTEGER) {
+ int val;
+
+ try {
+ val = ja.getInt(index);
+ } catch (JSONException ex) {
+ throw new IllegalArgumentException("The index "
+ + index
+ + " does not have a valid int
value.",
+ ex);
+ }
+
+ return val;
+ } else if (type == Type.LONG) {
+ long val;
+
+ try {
+ val = ja.getLong(index);
+ } catch (JSONException ex) {
+ throw new IllegalArgumentException("The index "
+ + index
+ + " does not have a valid long
value.",
+ ex);
+ }
+
+ return val;
+ } else if (type == Type.CHAR) {
+ String val;
+
+ try {
+ val = ja.getString(index);
+ } catch (JSONException ex) {
+ throw new IllegalArgumentException("The index "
+ + index
+ + " does not have a valid
character value.",
+ ex);
+ }
+
+ if (val.length() != 1) {
+ throw new IllegalArgumentException("The index "
+ + index
+ + " has a value "
+ + val
+ + " that is not one character
long.");
+ }
+
+ return val.charAt(0);
+ } else if (type == Type.STRING) {
+ String val;
+
+ try {
+ val = ja.getString(index);
+ } catch (JSONException ex) {
+ throw new IllegalArgumentException("The index "
+ + index
+ + " does not have a valid
string value.",
+ ex);
+ }
+
+ return val;
+ } else if (type == Type.DOUBLE) {
+ Double val;
+
+ try {
+ val = ja.getDouble(index);
--- End diff --
same..
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