Example usage for com.google.gson JsonElement getAsJsonPrimitive

Introduction

In this page you can find the example usage for com.google.gson JsonElement getAsJsonPrimitive.

Prototype

public JsonPrimitive getAsJsonPrimitive() 

Source Link

Document

convenience method to get this element as a JsonPrimitive .

Usage

From source file:com.flipkart.android.proteus.toolbox.Utils.java

License:Apache License

public static JsonElement merge(JsonElement oldJson, JsonElement newJson, boolean useCopy, Gson gson) {

    JsonElement newDataElement;//from  w  w  w  .j  ava 2s. c  o m
    JsonArray oldArray;
    JsonArray newArray;
    JsonElement oldArrayItem;
    JsonElement newArrayItem;
    JsonObject oldObject;

    if (oldJson == null || oldJson.isJsonNull()) {
        return useCopy ? gson.fromJson(newJson, JsonElement.class) : newJson;
    }

    if (newJson == null || newJson.isJsonNull()) {
        newJson = JsonNull.INSTANCE;
        return newJson;
    }

    if (newJson.isJsonPrimitive()) {
        JsonPrimitive value;
        if (!useCopy) {
            return newJson;
        }
        if (newJson.getAsJsonPrimitive().isBoolean()) {
            value = new JsonPrimitive(newJson.getAsBoolean());
        } else if (newJson.getAsJsonPrimitive().isNumber()) {
            value = new JsonPrimitive(newJson.getAsNumber());
        } else if (newJson.getAsJsonPrimitive().isString()) {
            value = new JsonPrimitive(newJson.getAsString());
        } else {
            value = newJson.getAsJsonPrimitive();
        }
        return value;
    }

    if (newJson.isJsonArray()) {
        if (!oldJson.isJsonArray()) {
            return useCopy ? gson.fromJson(newJson, JsonArray.class) : newJson;
        } else {
            oldArray = oldJson.getAsJsonArray();
            newArray = newJson.getAsJsonArray();

            if (oldArray.size() > newArray.size()) {
                while (oldArray.size() > newArray.size()) {
                    oldArray.remove(oldArray.size() - 1);
                }
            }

            for (int index = 0; index < newArray.size(); index++) {
                if (index < oldArray.size()) {
                    oldArrayItem = oldArray.get(index);
                    newArrayItem = newArray.get(index);
                    oldArray.set(index, merge(oldArrayItem, newArrayItem, useCopy, gson));
                } else {
                    oldArray.add(newArray.get(index));
                }
            }
        }
    } else if (newJson.isJsonObject()) {
        if (!oldJson.isJsonObject()) {
            return useCopy ? gson.fromJson(newJson, JsonObject.class) : newJson;
        } else {
            oldObject = oldJson.getAsJsonObject();
            for (Map.Entry<String, JsonElement> entry : newJson.getAsJsonObject().entrySet()) {
                newDataElement = merge(oldObject.get(entry.getKey()), entry.getValue(), useCopy, gson);
                oldObject.add(entry.getKey(), newDataElement);
            }
        }
    } else {
        return useCopy ? gson.fromJson(newJson, JsonElement.class) : newJson;
    }

    return oldJson;
}

---

From source file:com.flipkart.polyguice.config.JsonConfiguration.java

License:Apache License

private void flatten(String prefix, JsonElement element) {
    if (element.isJsonPrimitive()) {
        JsonPrimitive jsonPrim = element.getAsJsonPrimitive();
        if (jsonPrim.isBoolean()) {
            configTab.put(prefix, jsonPrim.getAsBoolean());
        } else if (jsonPrim.isNumber()) {
            configTab.put(prefix, jsonPrim.getAsNumber());
        } else if (jsonPrim.isString()) {
            configTab.put(prefix, jsonPrim.getAsString());
        }//from  ww w .j a va2 s .c  o m
    } else if (element.isJsonObject()) {
        JsonObject jsonObj = element.getAsJsonObject();
        for (Map.Entry<String, JsonElement> entry : jsonObj.entrySet()) {
            String prefix1 = ((prefix != null) ? prefix + "." : "") + entry.getKey();
            flatten(prefix1, entry.getValue());
        }
    }
}

---

From source file:com.frontier45.flume.sink.elasticsearch2.ElasticSearchLogStashEventSerializer.java

License:Apache License

private Object getValue(JsonElement obj) {
    JsonPrimitive jp = obj.getAsJsonPrimitive();
    if (jp.isBoolean()) {
        return jp.getAsBoolean();
    } else if (jp.isNumber()) {
        String value = jp.getAsString();
        if (value.indexOf(".") > 0) {
            return jp.getAsDouble();
        } else {/*from w w  w . java 2 s.c o  m*/
            return jp.getAsLong();
        }
    } else if (jp.isString()) {
        return jp.getAsString();
    }
    return obj;
}

---

From source file:com.getperka.flatpack.codexes.BooleanCodex.java

License:Apache License

@Override
public Boolean readNotNull(JsonElement element, DeserializationContext context) {
    return element.getAsJsonPrimitive().isNumber() ? element.getAsNumber().intValue() != 0
            : element.getAsBoolean();//from   w  ww .  j  a v a  2 s  . c o  m
}

---

From source file:com.getperka.flatpack.codexes.CharacterCodex.java

License:Apache License

@Override
public Character readNotNull(JsonElement element, DeserializationContext context) throws Exception {
    if (element.isJsonPrimitive()) {
        JsonPrimitive primitive = element.getAsJsonPrimitive();
        // Treat a number as a BMP code point
        if (primitive.isNumber()) {
            return (char) primitive.getAsInt();
        } else {/*from  ww w.  j a  v  a 2 s .  c  o  m*/
            return primitive.getAsCharacter();
        }
    }
    throw new IllegalArgumentException("Cannot convert " + element.toString() + " to a char");
}

---

From source file:com.getperka.flatpack.codexes.DateCodex.java

License:Apache License

@Override
public D readNotNull(JsonElement element, DeserializationContext context) throws Exception {
    if (element.isJsonPrimitive()) {
        long instant;
        JsonPrimitive primitive = element.getAsJsonPrimitive();
        if (primitive.isNumber()) {
            instant = primitive.getAsLong();
        } else {/*w w  w. java  2 s .c  om*/
            instant = ISODateTimeFormat.dateTimeParser().parseMillis(primitive.getAsString());
        }
        return constructor.newInstance(instant);
    }
    throw new IllegalArgumentException("Could not parse " + element.toString() + " as a date value");
}

---

From source file:com.getperka.flatpack.codexes.DynamicCodex.java

License:Apache License

/**
 * Attempt to infer the type from the JsonElement presented.
 * <ul>/*from  w  w  w  . ja  va 2 s  . c  om*/
 * <li>boolean -> {@link Boolean}
 * <li>number -> {@link BigDecimal}
 * <li>string -> {@link HasUuid} or {@link String}
 * <li>array -> {@link ListCodex}
 * <li>object -> {@link StringMapCodex}
 * </ul>
 */
@Override
public Object readNotNull(JsonElement element, DeserializationContext context) throws Exception {
    if (element.isJsonPrimitive()) {
        JsonPrimitive primitive = element.getAsJsonPrimitive();
        if (primitive.isBoolean()) {
            return primitive.getAsBoolean();
        } else if (primitive.isNumber()) {
            // Always return numbers as BigDecimals for consistency
            return primitive.getAsBigDecimal();
        } else {
            String value = primitive.getAsString();

            // Interpret UUIDs as entity references
            if (UUID_PATTERN.matcher(value).matches()) {
                UUID uuid = UUID.fromString(value);
                HasUuid entity = context.getEntity(uuid);
                if (entity != null) {
                    return entity;
                }
            }

            return value;
        }
    } else if (element.isJsonArray()) {
        return listCodex.get().readNotNull(element, context);
    } else if (element.isJsonObject()) {
        return mapCodex.get().readNotNull(element, context);
    }
    context.fail(new UnsupportedOperationException("Cannot infer data type for " + element.toString()));
    return null;
}

---

From source file:com.github.francescojo.gsondbg.GsonDebuggable.java

private void inspectJsonObject(JsonObject jsonObject, Class<?> klass) {
    Map<String, Field> mappingInfo = new HashMap<String, Field>();
    for (Field classField : klass.getDeclaredFields()) {
        Annotation[] annotations = classField.getAnnotations();
        if (null == annotations || 0 == annotations.length) {
            mappingInfo.put(classField.getName(), classField);
        } else {/*from www  .j a  v  a 2  s .  com*/
            for (Annotation annotation : annotations) {
                if (annotation instanceof SerializedName) {
                    String customName = ((SerializedName) annotation).value();
                    mappingInfo.put(customName, classField);
                    /*
                     * FIXME: alternate() is introduced in Gson 2.4. Safe to delete if your Gson is lower than 2.4.
                     */
                    try {
                        String[] alternateNames = ((SerializedName) annotation).alternate();
                        for (String alternateName : alternateNames) {
                            mappingInfo.put(alternateName, classField);
                        }
                    } catch (NoSuchMethodError ignore) {
                    }
                }
            }
        }
    }

    for (Map.Entry<String, JsonElement> entry : jsonObject.entrySet()) {
        String key = entry.getKey();
        JsonElement value = entry.getValue();
        if (!mappingInfo.containsKey(key)) {
            /*
             * Gson ignores fields that are not found in json by default - following same rule in here.
             */
            continue;
        }

        Field javaField = mappingInfo.get(key);
        Class<?> javaType = javaField.getType();

        if (WellKnownTypeCastingRules.isWellKnown(javaType)) {
            if (!(value instanceof JsonPrimitive)) {
                log("%s#%s is declared as ''%s''; however JSON is: { \"%s\": %s }",
                        javaField.getDeclaringClass().getName(), javaField.getName(),
                        javaField.getType().getCanonicalName(), key, value);
                continue;
            }

            WellKnownTypeCastingRules rule = WellKnownTypeCastingRules.byJavaType(javaType);
            JsonPrimitive primitive = value.getAsJsonPrimitive();
            if (rule.isAcceptable(primitive)) {
                continue;
            }

            log("%s#%s is declared as ''%s''; however JSON is: { \"%s\": %s }",
                    javaField.getDeclaringClass().getName(), javaField.getName(),
                    javaField.getType().getCanonicalName(), key, value);
        } else if (javaType.isArray()) {
            try {
                gson.fromJson(value, javaType);
            } catch (JsonSyntaxException e) {
                log("%s#%s is declared as ''%s''; however JSON is: { \"%s\": %s }",
                        javaField.getDeclaringClass().getName(), javaField.getName(),
                        javaField.getType().getCanonicalName(), key, value);
            }
        } else if (value.isJsonObject()) {
            inspectJsonObject(value.getAsJsonObject(), javaType);
        }
    }
}

---

From source file:com.github.GsonPrettyPrinter.java

License:Open Source License

private List<String> toStringList(final JsonElement je) {
    if (je == null || je.isJsonNull())
        return new ArrayList<String>(Arrays.asList(new String[] { "null" }));
    if (je.isJsonPrimitive())
        return Collections.singletonList(je.getAsJsonPrimitive().toString());
    if (je.isJsonArray()) {
        final JsonArray jsonArray = je.getAsJsonArray();
        return arrayToStringList(jsonArray);
    } else if (je.isJsonObject()) {
        final JsonObject jsonObject = je.getAsJsonObject();
        return objectToStringList(jsonObject);
    }/*from   w  ww.j  av  a  2 s . com*/
    throw new RuntimeException("Unsupported Json element: " + je.getClass().getName());
}

---

From source file:com.github.maoo.indexer.client.WebScriptsAlfrescoClient.java

License:Apache License

private String getString(JsonObject responseObject, String key) {
    if (responseObject.has(key)) {
        JsonElement element = responseObject.get(key);
        if (element.isJsonPrimitive() && element.getAsJsonPrimitive().isString()) {
            return element.getAsString();
        } else {//from   w w  w. jav a 2  s .c o m
            logger.warn("The {} property (={}) is not a string in document: {}",
                    new Object[] { key, element, responseObject });
        }
    } else {
        logger.warn("The key {} is missing from document: {}", key, responseObject);
    }
    return "";
}

---

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