Example usage for com.google.gson JsonElement isJsonPrimitive

Introduction

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

Prototype

public boolean isJsonPrimitive() 

Source Link

Document

provides check for verifying if this element is a primitive or not.

Usage

From source file:com.epishie.tabs.gson.ThingDeserializer.java

License:Apache License

@Override
public Thing deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
        throws JsonParseException {
    if (!json.isJsonObject()) {
        throw new JsonParseException("Expected json object");
    }/*from   w  w  w  .jav  a  2 s . co m*/
    JsonObject jsonObject = json.getAsJsonObject();
    if (!jsonObject.has(KIND)) {
        throw new JsonParseException("Expected to have \"kind\" field");
    }
    JsonElement kindElement = jsonObject.get(KIND);
    if (!kindElement.isJsonPrimitive()) {
        throw new JsonParseException("Expected to have a primitive \"kind\" field");
    }
    if (!jsonObject.has(DATA)) {
        throw new JsonParseException("Expected to have a\"data\" field");
    }
    String kind = kindElement.getAsString();
    String id = null;
    String name = null;
    if (jsonObject.has(ID)) {
        JsonElement idElement = jsonObject.get(ID);
        id = idElement.getAsString();
    }
    if (jsonObject.has(NAME)) {
        JsonElement nameElement = jsonObject.get(NAME);
        name = nameElement.getAsString();
    }
    Thing thing = null;
    switch (kind) {
    case Link.KIND:
        Link link = context.deserialize(jsonObject.get(DATA), Link.class);
        thing = new Thing<>(id, name, link);
        break;
    case Listing.KIND:
        Listing listing = context.deserialize(jsonObject.get(DATA), Listing.class);
        // noinspection unchecked
        thing = new Thing(id, name, listing);
        break;
    case Subreddit.KIND:
        Subreddit subreddit = context.deserialize(jsonObject.get(DATA), Subreddit.class);
        // noinspection unchecked
        thing = new Thing(id, name, subreddit);
        break;
    case Comment.KIND:
        Comment comment = context.deserialize(jsonObject.get(DATA), Comment.class);
        // noinspection unchecked
        thing = new Thing(id, name, comment);
        break;
    }
    return thing;
}

---

From source file:com.esotericsoftware.spine.SkeletonJson.java

License:Open Source License

void readCurve(CurveTimeline timeline, int frameIndex, JsonObject valueMap) {
    JsonElement curve = valueMap.has("curve") ? valueMap.get("curve") : null;
    if (curve == null)
        return;// w w  w  .  j  a  v  a 2  s  . c om
    if (curve.isJsonPrimitive() && curve.getAsString().equals("stepped"))
        timeline.setStepped(frameIndex);
    else if (curve.isJsonArray()) {
        JsonArray curveArray = curve.getAsJsonArray();
        timeline.setCurve(frameIndex, curveArray.get(0).getAsFloat(), curveArray.get(1).getAsFloat(),
                curveArray.get(2).getAsFloat(), curveArray.get(3).getAsFloat());
    }
}

---

From source file:com.evolveum.polygon.connector.googleapps.GoogleAppsUtil.java

License:Open Source License

private static ArrayMap<String, Object> parseJson(String json) {
    JsonObject object = (JsonObject) new com.google.gson.JsonParser().parse(json);
    Set<Map.Entry<String, JsonElement>> set = object.entrySet();
    Iterator<Map.Entry<String, JsonElement>> iterator = set.iterator();
    ArrayMap<String, Object> map = new ArrayMap<String, Object>();
    while (iterator.hasNext()) {
        Map.Entry<String, JsonElement> entry = iterator.next();
        String key = entry.getKey();
        JsonElement value = entry.getValue();
        if (!value.isJsonPrimitive()) {
            map.put(key, parseJson(value.toString()));
        } else {/*  w  ww  . ja  va2  s  .co  m*/
            map.put(key, value.getAsString());
        }
    }
    return map;
}

---

From source file:com.facebook.buck.apple.XctoolOutputParsing.java

License:Apache License

private static void dispatchEventCallback(Gson gson, JsonElement element, XctoolEventCallback eventCallback)
        throws JsonParseException {
    LOG.debug("Parsing xctool event: %s", element);
    if (!element.isJsonObject()) {
        LOG.warn("Couldn't parse JSON object from xctool event: %s", element);
        return;//from  ww w  .  java 2  s  .  c om
    }
    JsonObject object = element.getAsJsonObject();
    if (!object.has("event")) {
        LOG.warn("Couldn't parse JSON event from xctool event: %s", element);
        return;
    }
    JsonElement event = object.get("event");
    if (event == null || !event.isJsonPrimitive()) {
        LOG.warn("Couldn't parse event field from xctool event: %s", element);
        return;
    }
    switch (event.getAsString()) {
    case "begin-ocunit":
        eventCallback.handleBeginOcunitEvent(gson.fromJson(element, BeginOcunitEvent.class));
        break;
    case "end-ocunit":
        eventCallback.handleEndOcunitEvent(gson.fromJson(element, EndOcunitEvent.class));
        break;
    case "begin-test-suite":
        eventCallback.handleBeginTestSuiteEvent(gson.fromJson(element, BeginTestSuiteEvent.class));
        break;
    case "end-test-suite":
        eventCallback.handleEndTestSuiteEvent(gson.fromJson(element, EndTestSuiteEvent.class));
        break;
    case "begin-test":
        eventCallback.handleBeginTestEvent(gson.fromJson(element, BeginTestEvent.class));
        break;
    case "end-test":
        eventCallback.handleEndTestEvent(gson.fromJson(element, EndTestEvent.class));
        break;
    }
}

---

From source file:com.facebook.buck.httpserver.TracesHelper.java

License:Apache License

private static Optional<String> tryToFindCommand(JsonObject json) {
    JsonElement nameEl = json.get("name");
    if (nameEl == null || !nameEl.isJsonPrimitive()) {
        return Optional.absent();
    }/*w ww . j  a  v a  2  s. c o m*/

    JsonElement argsEl = json.get("args");
    if (argsEl == null || !argsEl.isJsonObject() || argsEl.getAsJsonObject().get("command_args") == null
            || !argsEl.getAsJsonObject().get("command_args").isJsonPrimitive()) {
        return Optional.absent();
    }

    String name = nameEl.getAsString();
    String commandArgs = argsEl.getAsJsonObject().get("command_args").getAsString();
    String command = "buck " + name + " " + commandArgs;

    return Optional.of(command);
}

---

From source file:com.facebook.buck.json.RawParser.java

License:Apache License

/**
 * @return One of: String, Boolean, Long, Number, List<Object>, Map<String, Object>.
 *//*from w  w w .  j a  v  a2s.  c  o m*/
@Nullable
@VisibleForTesting
static Object toRawTypes(JsonElement json) {
    // Cases are ordered from most common to least common.
    if (json.isJsonPrimitive()) {
        JsonPrimitive primitive = json.getAsJsonPrimitive();
        if (primitive.isString()) {
            return interner.intern(primitive.getAsString());
        } else if (primitive.isBoolean()) {
            return primitive.getAsBoolean();
        } else if (primitive.isNumber()) {
            Number number = primitive.getAsNumber();
            // Number is likely an instance of class com.google.gson.internal.LazilyParsedNumber.
            if (number.longValue() == number.doubleValue()) {
                return number.longValue();
            } else {
                return number;
            }
        } else {
            throw new IllegalStateException("Unknown primitive type: " + primitive);
        }
    } else if (json.isJsonArray()) {
        JsonArray array = json.getAsJsonArray();
        List<Object> out = Lists.newArrayListWithCapacity(array.size());
        for (JsonElement item : array) {
            out.add(toRawTypes(item));
        }
        return out;
    } else if (json.isJsonObject()) {
        Map<String, Object> out = new LinkedHashMap<>(json.getAsJsonObject().entrySet().size());
        for (Map.Entry<String, JsonElement> entry : json.getAsJsonObject().entrySet()) {
            // On a large project, without invoking intern(), we have seen `buck targets` OOM. When this
            // happened, according to the .hprof file generated using -XX:+HeapDumpOnOutOfMemoryError,
            // 39.6% of the memory was spent on char[] objects while 14.5% was spent on Strings.
            // (Another 10.5% was spent on java.util.HashMap$Entry.) Introducing intern() stopped the
            // OOM from happening.
            out.put(interner.intern(entry.getKey()), toRawTypes(entry.getValue()));
        }
        return out;
    } else if (json.isJsonNull()) {
        return null;
    } else {
        throw new IllegalStateException("Unknown type: " + json);
    }
}

---

From source file:com.facebook.buck.util.trace.ChromeTraceParser.java

License:Apache License

/**
 * Parses a Chrome trace and stops parsing once all of the specified matchers have been
 * satisfied. This method parses only one Chrome trace event at a time, which avoids loading the
 * entire trace into memory.// ww  w.  j av a2s . co  m
 * @param pathToTrace is a relative path [to the ProjectFilesystem] to a Chrome trace in the
 *     "JSON Array Format."
 * @param chromeTraceEventMatchers set of matchers this invocation of {@code parse()} is trying to
 *     satisfy. Once a matcher finds a match, it will not consider any other events in the trace.
 * @return a {@code Map} where every matcher that found a match will have an entry whose key is
 *     the matcher and whose value is the one returned by
 *     {@link ChromeTraceEventMatcher#test(JsonObject, String)} without the {@link Optional}
 *     wrapper.
 */
public Map<ChromeTraceEventMatcher<?>, Object> parse(Path pathToTrace,
        Set<ChromeTraceEventMatcher<?>> chromeTraceEventMatchers) throws IOException {
    Set<ChromeTraceEventMatcher<?>> unmatchedMatchers = new HashSet<>(chromeTraceEventMatchers);
    Preconditions.checkArgument(!unmatchedMatchers.isEmpty(), "Must specify at least one matcher");
    Map<ChromeTraceEventMatcher<?>, Object> results = new HashMap<>();

    try (InputStream input = projectFilesystem.newFileInputStream(pathToTrace);
            JsonReader jsonReader = new JsonReader(new InputStreamReader(input))) {
        jsonReader.beginArray();
        Gson gson = new Gson();

        featureSearch: while (true) {
            // If END_ARRAY is the next token, then there are no more elements in the array.
            if (jsonReader.peek().equals(JsonToken.END_ARRAY)) {
                break;
            }

            // Verify and extract the name property before invoking any of the matchers.
            JsonObject event = gson.fromJson(jsonReader, JsonObject.class);
            JsonElement nameEl = event.get("name");
            if (nameEl == null || !nameEl.isJsonPrimitive()) {
                continue;
            }
            String name = nameEl.getAsString();

            // Prefer Iterator to Iterable+foreach so we can use remove().
            for (Iterator<ChromeTraceEventMatcher<?>> iter = unmatchedMatchers.iterator(); iter.hasNext();) {
                ChromeTraceEventMatcher<?> chromeTraceEventMatcher = iter.next();
                Optional<?> result = chromeTraceEventMatcher.test(event, name);
                if (result.isPresent()) {
                    iter.remove();
                    results.put(chromeTraceEventMatcher, result.get());

                    if (unmatchedMatchers.isEmpty()) {
                        break featureSearch;
                    }
                }
            }
        }
    }

    // We could throw if !unmatchedMatchers.isEmpty(), but that might be overbearing.
    return results;
}

---

From source file:com.flipkart.android.proteus.builder.DataParsingLayoutBuilder.java

License:Apache License

public String isDataPath(JsonElement element) {
    if (!element.isJsonPrimitive()) {
        return null;
    }/*  www  . ja v a 2 s.c  om*/
    String attributeValue = element.getAsString();
    if (attributeValue != null && !"".equals(attributeValue)
            && (attributeValue.charAt(0) == ProteusConstants.DATA_PREFIX
                    || attributeValue.charAt(0) == ProteusConstants.REGEX_PREFIX)) {
        return attributeValue;
    }
    return null;
}

---

From source file:com.flipkart.android.proteus.parser.ParseHelper.java

License:Apache License

public static int parseVisibility(JsonElement element) {
    Integer returnValue = null;//from w  w  w.  j  a  v  a2s. c o  m
    if (element.isJsonPrimitive()) {
        String attributeValue = element.getAsString();
        returnValue = sVisibilityMode.get(attributeValue);
        if (null == returnValue && (attributeValue.isEmpty() || FALSE.equals(attributeValue)
                || ProteusConstants.DATA_NULL.equals(attributeValue))) {
            returnValue = View.GONE;
        }
    } else if (element.isJsonNull()) {
        returnValue = View.GONE;
    }
    return returnValue == null ? View.VISIBLE : returnValue;
}

---

From source file:com.flipkart.android.proteus.parser.ParseHelper.java

License:Apache License

public static int parseInvisibility(JsonElement element) {
    Integer returnValue = null;//from  w  ww  .ja v  a2 s.co m
    if (element.isJsonPrimitive()) {
        String attributeValue = element.getAsString();
        returnValue = sVisibilityMode.get(attributeValue);
        if (null == returnValue && (attributeValue.isEmpty() || FALSE.equals(attributeValue)
                || ProteusConstants.DATA_NULL.equals(attributeValue))) {
            returnValue = View.VISIBLE;
        }
    } else if (element.isJsonNull()) {
        returnValue = View.VISIBLE;
    }

    return returnValue == null ? View.GONE : returnValue;
}

---

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