Java Code Examples for javax.json.stream.JsonParser#next()
The following examples show how to use
javax.json.stream.JsonParser#next() .
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Example 1
| Source File: ParsingJSONFiles.java From Java-Data-Analysis with MIT License | 6 votes |
|
public static ArrayList getList(JsonParser parser) {
ArrayList list = new ArrayList();
Event event = parser.next(); // advance past START_ARRAY
while (!event.equals(Event.END_ARRAY)) {
if (event.equals(Event.VALUE_STRING)) {
list.add(parser.getString());
event = parser.next();
} else if (event.equals(Event.START_OBJECT)) {
HashMap<String,Object> map = getMap(parser);
list.add(map);
event = parser.next();
} else if (event.equals(Event.START_ARRAY)) {
ArrayList subList = getList(parser); // recursion
list.add(subList);
event = parser.next();
}
}
return list;
}
Example 2
| Source File: WeatherServiceTest.java From tomee with Apache License 2.0 | 6 votes |
|
private List<JsonItem> convertToMap(String s) {
JsonParser expectedParser = Json.createParser(new StringReader(s));
List<JsonItem> list = new ArrayList<>();
while (expectedParser.hasNext()) {
JsonParser.Event event = expectedParser.next();
switch (event) {
case KEY_NAME:
case VALUE_STRING:
case VALUE_NUMBER:
list.add(new JsonItem(event, expectedParser.getValue().toString()));
break;
default:
list.add(new JsonItem(event));
}
}
return list;
}
Example 3
| Source File: JsonXmlReader.java From iaf with Apache License 2.0 | 6 votes |
|
public boolean parse(String key, JsonParser parser) throws IOException, SAXException {
Event event = parser.next();
if (event.equals(Event.START_OBJECT)) {
startElement("map", key);
while ((event = parser.next())!=Event.END_OBJECT) {
if (event!=Event.KEY_NAME) {
throw new SAXException("expected key name at "+parser.getLocation());
}
key=parser.getString();
parse(key,parser);
};
endElement("map");
} else if (event==Event.END_ARRAY) {
return false;
} else if (event==Event.START_ARRAY) {
startElement("array", key);
while (parse(null,parser)); // parse array elements until the close
endElement("array");
} else {
if (event==Event.VALUE_NULL) {
simpleElement("null", key, null);
} else {
if (event==Event.VALUE_FALSE) {
simpleElement("boolean", key, "false");
} else {
if (event==Event.VALUE_TRUE) {
simpleElement("boolean", key, "true");
} else {
String value =parser.getString();
if (event==Event.VALUE_NUMBER) {
simpleElement("number", key, value);
} else {
simpleElement("string", key, value);
}
}
}
}
}
return true;
}
Example 4
| Source File: MicroProfileMetricsIntegrationTest.java From wildfly-camel with Apache License 2.0 | 6 votes |
|
private void assertComplexMetricValue(CamelContext camelctx, String metricName, Number metricValue) throws Exception {
String metrics = getMetrics();
JsonParser parser = Json.createParser(new StringReader(metrics));
Assert.assertTrue("Metrics endpoint content is empty", parser.hasNext());
parser.next();
JsonObject jsonObject = parser.getObject();
JsonNumber result = null;
String[] nameParts = metricName.split("\\.");
for (int i = 0; i < nameParts.length; i++) {
String jsonKey = i + 1 == nameParts.length ? nameParts[i] + ";camelContext=" + camelctx.getName() : nameParts[i];
if (i + 1 == nameParts.length) {
result = jsonObject.getJsonNumber(jsonKey);
break;
} else {
jsonObject = jsonObject.getJsonObject(jsonKey);
}
}
Assert.assertNotNull("Expected to find metric " + metricName, result);
Assert.assertEquals("Expected metric " + metricName + " to have value " + metricValue, metricValue, result.intValue());
}
Example 5
| Source File: Client.java From webex-java-sdk with MIT License | 6 votes |
|
public <T> LinkedResponse<List<T>> paginate(final Class<T> clazz, URL url) {
LinkedResponse.BodyCreator<List<T>> function = new LinkedResponse.BodyCreator<List<T>>() {
@Override
public List<T> create(InputStream istream) {
JsonParser parser = Json.createParser(istream);
Client.this.scrollToItemsArray(parser);
List<T> result = new ArrayList<T>();
for (JsonParser.Event event = parser.next();
event == JsonParser.Event.START_OBJECT;
event = parser.next()) {
result.add(readObject(clazz, parser));
}
return result;
}
};
try {
return new LinkedResponse<List<T>>(this, url, function);
} catch (IOException e) {
throw new SparkException("io error", e);
}
}
Example 6
| Source File: MessageDecoder.java From javaee7-websocket with MIT License | 6 votes |
|
@Override
public boolean willDecode(String string) {
boolean decodes = false;
/* Convert the message into a map */
messageMap = new HashMap<>();
JsonParser parser = Json.createParser(new StringReader(string));
while (parser.hasNext()) {
if (parser.next() == JsonParser.Event.KEY_NAME) {
String key = parser.getString();
parser.next();
String value = parser.getString();
messageMap.put(key, value);
}
}
/* Check the kind of message and if all fields are included */
Set keys = messageMap.keySet();
if (keys.contains("type")) {
switch (messageMap.get("type")) {
case "betMatchWinner":
if (keys.contains("name"))
decodes = true;
break;
}
}
return decodes;
}
Example 7
| Source File: Index.java From FHIR with Apache License 2.0 | 6 votes |
|
private void parseFiles(JsonParser parser) {
int i = 0;
while (parser.hasNext()) {
Event event = parser.next();
switch (event) {
case START_OBJECT:
try {
parseFile(parser);
} catch (NullPointerException e) {
log.log(Level.WARNING, "Skipping index entry " + i + " due to " +
"one or more missing required fields, beginning with: " + e.getMessage());
}
i++;
break;
case END_ARRAY:
return;
default:
break;
}
}
}
Example 8
| Source File: JsonQueryMessageDecoder.java From datawave with Apache License 2.0 | 5 votes |
|
private void addValueToMap(String key, JsonParser parser, MultivaluedMap<String,String> map) {
boolean done = true; // By default we expect only a single value, but we could see an array.
do {
switch (parser.next()) {
case VALUE_STRING:
case VALUE_NUMBER:
map.add(key, parser.getString());
break;
case VALUE_TRUE:
map.add(key, Boolean.TRUE.toString());
break;
case VALUE_FALSE:
map.add(key, Boolean.FALSE.toString());
break;
case VALUE_NULL:
map.add(key, null);
break;
case START_ARRAY:
// If we hit an array, then mark done=false so we'll iterate through the do..while loop until we see END_ARRAY
done = false;
break;
case END_ARRAY:
// We should only hit this after having hit a corresponding START_ARRAY. Indicate that we're done so we exit the do..while loop.
done = true;
break;
case START_OBJECT:
throw new IllegalStateException("Cannot decode nested objects.");
}
} while (!done);
}
Example 9
| Source File: MicroProfileMetricsIntegrationTest.java From wildfly-camel with Apache License 2.0 | 5 votes |
|
private void assertSimpleMetricValue(CamelContext camelctx, String metricName, Number metricValue) throws Exception {
String metrics = getMetrics();
JsonParser parser = Json.createParser(new StringReader(metrics));
Assert.assertTrue("Metrics endpoint content is empty", parser.hasNext());
parser.next();
JsonNumber jsonNumber = parser.getObject().getJsonNumber(metricName + ";camelContext=" + camelctx.getName());
Assert.assertEquals("Expected to find metric" + metricName + " with value " + metricValue, metricValue, jsonNumber.intValue());
}
Example 10
| Source File: BookDeserializer.java From Java-EE-8-Sampler with MIT License | 5 votes |
|
@Override
public String deserialize(JsonParser parser, DeserializationContext ctx, Type rtType) {
while (parser.hasNext()) {
JsonParser.Event event = parser.next();
if (event == JsonParser.Event.KEY_NAME) {
String keyName = parser.getString();
if (keyName.equals("id")) {
return ctx.deserialize(String.class, parser);
}
}
parser.next();
}
return "";
}
Example 11
| Source File: CustomConfigSource.java From microprofile-sandbox with Apache License 2.0 | 5 votes |
|
public Map<String, String> getProperties() {
Map<String, String> m = new HashMap<String, String>();
String jsonData = this.readFile(this.fileLocation);
JsonParser parser = Json.createParser(new StringReader(jsonData));
String key = null;
while (parser.hasNext()) {
final Event event = parser.next();
switch (event) {
case KEY_NAME:
key = parser.getString();
break;
case VALUE_STRING:
String string = parser.getString();
m.put(key, string);
break;
case VALUE_NUMBER:
BigDecimal number = parser.getBigDecimal();
m.put(key, number.toString());
break;
case VALUE_TRUE:
m.put(key, "true");
break;
case VALUE_FALSE:
m.put(key, "false");
break;
default:
break;
}
}
parser.close();
return m;
}
Example 12
| Source File: JsonUnitTest.java From tutorials with MIT License | 5 votes |
|
@Test
public void whenUsingStreamingApiToQueryForSpecificProperty_thenExpectedValueIsReturned(
) throws IOException, ParseException {
JsonParser jsonParser = Json.createParser(new StringReader(petshopJson));
int count = 0;
String result = null;
while(jsonParser.hasNext()) {
Event e = jsonParser.next();
if (e == Event.KEY_NAME) {
if(jsonParser.getString().equals("name")) {
jsonParser.next();
if(++count == 3) {
result = jsonParser.getString();
break;
}
}
}
}
assertEquals(
"The query should return the 'name' property of the third pet from the list",
"Jake",
result);
}
Example 13
| Source File: JsonpTest.java From ee8-sandbox with Apache License 2.0 | 5 votes |
|
@Test
public void testJsonParser() {
String key = "";
String value = "";
JsonParser parser = Json.createParser(JsonpTest.class.getResourceAsStream("/person.json"));
while (parser.hasNext()) {
JsonParser.Event e = parser.next();
System.out.print(e.name());
switch (e) {
case START_ARRAY:
if (key.equals("phoneNumbers")) {
parser.skipArray();
}
break;
case KEY_NAME:
key = parser.getString();
System.out.print(" - " + parser.getString());
break;
case VALUE_STRING:
System.out.print(" - " + parser.getString());
if ("name".equals(key)) {
value = parser.getString();
}
}
System.out.println();
}
assertEquals("Duke", value);
}
Example 14
| Source File: CustomConfigSource.java From boost with Eclipse Public License 1.0 | 5 votes |
|
public Map<String, String> getProperties() {
Map<String, String> m = new HashMap<String, String>();
String jsonData = this.readFile(this.fileLocation);
JsonParser parser = Json.createParser(new StringReader(jsonData));
String key = null;
while (parser.hasNext()) {
final Event event = parser.next();
switch (event) {
case KEY_NAME:
key = parser.getString();
break;
case VALUE_STRING:
String string = parser.getString();
m.put(key, string);
break;
case VALUE_NUMBER:
BigDecimal number = parser.getBigDecimal();
m.put(key, number.toString());
break;
case VALUE_TRUE:
m.put(key, "true");
break;
case VALUE_FALSE:
m.put(key, "false");
break;
default:
break;
}
}
parser.close();
return m;
}
Example 15
| Source File: ActionMessage.java From sample.daytrader7 with Apache License 2.0 | 5 votes |
|
public void doDecoding(String jsonText) {
String keyName = null;
try
{
// JSON parse
JsonParser parser = Json.createParser(new StringReader(jsonText));
while (parser.hasNext()) {
JsonParser.Event event = parser.next();
switch(event) {
case KEY_NAME:
keyName=parser.getString();
break;
case VALUE_STRING:
if (keyName != null && keyName.equals("action")) {
decodedAction=parser.getString();
}
break;
default:
break;
}
}
} catch (Exception e) {
Log.error("ActionMessage:doDecoding(" + jsonText + ") --> failed", e);
}
if (Log.doTrace()) {
if (decodedAction != null ) {
Log.trace("ActionMessage:doDecoding -- decoded action -->" + decodedAction + "<--");
} else {
Log.trace("ActionMessage:doDecoding -- decoded action -->null<--");
}
}
}
Example 16
| Source File: CustomConfigSource.java From boost with Eclipse Public License 1.0 | 5 votes |
|
public Map<String, String> getProperties() {
Map<String, String> m = new HashMap<String, String>();
String jsonData = this.readFile(this.fileLocation);
JsonParser parser = Json.createParser(new StringReader(jsonData));
String key = null;
while (parser.hasNext()) {
final Event event = parser.next();
switch (event) {
case KEY_NAME:
key = parser.getString();
break;
case VALUE_STRING:
String string = parser.getString();
m.put(key, string);
break;
case VALUE_NUMBER:
BigDecimal number = parser.getBigDecimal();
m.put(key, number.toString());
break;
case VALUE_TRUE:
m.put(key, "true");
break;
case VALUE_FALSE:
m.put(key, "false");
break;
default:
break;
}
}
parser.close();
return m;
}
Example 17
| Source File: Client.java From webex-java-sdk with MIT License | 5 votes |
|
private void scrollToItemsArray(JsonParser parser) {
JsonParser.Event event;
while (parser.hasNext()) {
event = parser.next();
if (event == JsonParser.Event.KEY_NAME && parser.getString().equals("items")) {
break;
}
}
event = parser.next();
if (event != JsonParser.Event.START_ARRAY) {
throw new SparkException("bad json");
}
}
Example 18
| Source File: Index.java From FHIR with Apache License 2.0 | 5 votes |
|
public void load(Reader reader) {
JsonParser parser = PARSER_FACTORY.createParser(reader);
String keyName = null;
while (parser.hasNext()) {
Event event = parser.next();
switch (event) {
case KEY_NAME:
keyName = parser.getString();
break;
case VALUE_NUMBER:
if ("index-version".equals(keyName)) {
version = parser.getInt();
}
case START_ARRAY:
if ("files".equals(keyName)) {
parseFiles(parser);
}
break;
default:
break;
}
}
parser.close();
if (version < 1) {
throw new IllegalStateException("index version was not set");
}
}
Example 19
| Source File: PingJSONP.java From sample.daytrader7 with Apache License 2.0 | 4 votes |
|
/**
* this is the main method of the servlet that will service all get
* requests.
*
* @param request
* HttpServletRequest
* @param responce
* HttpServletResponce
**/
@Override
public void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {
try {
res.setContentType("text/html");
ServletOutputStream out = res.getOutputStream();
hitCount++;
// JSON generate
StringWriter sw = new StringWriter();
JsonGenerator generator = Json.createGenerator(sw);
generator.writeStartObject();
generator.write("initTime",initTime);
generator.write("hitCount", hitCount);
generator.writeEnd();
generator.flush();
String generatedJSON = sw.toString();
StringBuffer parsedJSON = new StringBuffer();
// JSON parse
JsonParser parser = Json.createParser(new StringReader(generatedJSON));
while (parser.hasNext()) {
JsonParser.Event event = parser.next();
switch(event) {
case START_ARRAY:
case END_ARRAY:
case START_OBJECT:
case END_OBJECT:
case VALUE_FALSE:
case VALUE_NULL:
case VALUE_TRUE:
break;
case KEY_NAME:
parsedJSON.append(parser.getString() + ":");
break;
case VALUE_STRING:
case VALUE_NUMBER:
parsedJSON.append(parser.getString() + " ");
break;
}
}
out.println("<html><head><title>Ping JSONP</title></head>"
+ "<body><HR><BR><FONT size=\"+2\" color=\"#000066\">Ping JSONP</FONT><BR>Generated JSON: " + generatedJSON + "<br>Parsed JSON: " + parsedJSON + "</body></html>");
} catch (Exception e) {
Log.error(e, "PingJSONP.doGet(...): general exception caught");
res.sendError(500, e.toString());
}
}
Example 20
| Source File: Index.java From FHIR with Apache License 2.0 | 4 votes |
|
private void parseFile(JsonParser parser) {
String fileName = null;
String resourceType = null;
String id = null;
String url = null;
String version = null;
String kind = null;
String type = null;
String keyName = null;
while (parser.hasNext()) {
Event event = parser.next();
switch (event) {
case KEY_NAME:
keyName = parser.getString();
break;
case VALUE_STRING:
switch (keyName) {
case "filename":
fileName = parser.getString();
break;
case "resourceType":
resourceType = parser.getString();
break;
case "id":
id = parser.getString();
break;
case "url":
url = parser.getString();
break;
case "version":
version = parser.getString();
break;
case "kind":
kind = parser.getString();
break;
case "type":
type = parser.getString();
break;
}
break;
case END_OBJECT:
entries.add(new Entry(fileName, resourceType, id, url, version, kind, type));
return;
default:
break;
}
}
}
