AndroidAPS/app/src/main/java/info/nightscout/androidaps/utils/JsonHelper.java

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package info.nightscout.androidaps.utils;
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import androidx.annotation.Nullable;
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import org.json.JSONException;
import org.json.JSONObject;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* JSonHelper is a Helper class which contains several methods to safely get data from the ggiven JSONObject.
*
* Created by triplem on 04.01.18.
*/
public class JsonHelper {
private static final Logger log = LoggerFactory.getLogger(JsonHelper.class);
private JsonHelper() {};
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public static Object safeGetObject(JSONObject json, String fieldName, Object defaultValue) {
Object result = defaultValue;
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if (json != null && json.has(fieldName)) {
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try {
result = json.get(fieldName);
} catch (JSONException ignored) {
}
}
return result;
}
@Nullable
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public static String safeGetString(JSONObject json, String fieldName) {
String result = null;
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if (json != null && json.has(fieldName)) {
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try {
result = json.getString(fieldName);
} catch (JSONException ignored) {
}
}
return result;
}
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public static String safeGetString(JSONObject json, String fieldName, String defaultValue) {
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String result = defaultValue;
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if (json != null && json.has(fieldName)) {
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try {
result = json.getString(fieldName);
} catch (JSONException ignored) {
}
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}
return result;
}
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public static double safeGetDouble(JSONObject json, String fieldName) {
double result = 0d;
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if (json != null && json.has(fieldName)) {
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try {
result = json.getDouble(fieldName);
} catch (JSONException ignored) {
}
}
return result;
}
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public static int safeGetInt(JSONObject json, String fieldName) {
int result = 0;
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if (json != null && json.has(fieldName)) {
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try {
result = json.getInt(fieldName);
} catch (JSONException ignored) {
}
}
return result;
}
public static long safeGetLong(JSONObject json, String fieldName) {
long result = 0;
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if (json != null && json.has(fieldName)) {
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try {
result = json.getLong(fieldName);
} catch (JSONException e) {
}
}
return result;
}
public static boolean safeGetBoolean(JSONObject json, String fieldName) {
boolean result = false;
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if (json != null && json.has(fieldName)) {
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try {
result = json.getBoolean(fieldName);
} catch (JSONException e) {
}
}
return result;
}
}