@Override
public Movie readFrom(
Class<Movie> type,
Type type1,
Annotation[] antns,
MediaType mt,
MultivaluedMap<String, String> mm,
InputStream in)
throws IOException, WebApplicationException {
Movie movie = new Movie();
JsonParser parser = Json.createParser(in);
while (parser.hasNext()) {
switch (parser.next()) {
case KEY_NAME:
String key = parser.getString();
parser.next();
switch (key) {
case "id":
movie.setId(parser.getInt());
break;
case "name":
movie.setName(parser.getString());
break;
case "actors":
movie.setActors(parser.getString());
break;
default:
break;
}
break;
default:
break;
}
}
return movie;
}
/**
* Populates query tags list from given JSON string. All unknown tags are ignored.
*
* @param jsonData the string with JSON data
* @throws Exception if JSON creation error occurs
*/
public void populateFromJson(String jsonData) throws TagsListParsingException {
try (JsonParser parser = Json.createParser(new StringReader(jsonData))) {
String key = null;
while (parser.hasNext()) {
JsonParser.Event event = parser.next();
switch (event) {
case KEY_NAME:
key = parser.getString();
break;
case VALUE_NUMBER:
tags.add(new QueryTag(key, parser.getInt()));
break;
case START_OBJECT:
case END_OBJECT:
break;
default:
logger.log(Level.SEVERE, "Unsupported tag passed in JSON string: " + jsonData);
break;
}
}
} catch (Exception e) {
logger.log(Level.SEVERE, "Error happen while parsing JSON string: " + jsonData, e);
throw new TagsListParsingException("Unable to decode tags list from URL", e);
}
}
public Event get(Event... events) {
Event event = parser.next();
if (event == Event.KEY_NAME || event == Event.VALUE_STRING) {
logger.debug(event + ": " + parser.getString());
} else {
logger.debug(event);
}
for (Event e : events) {
if (event == e) {
return event;
}
}
StringBuilder sb = new StringBuilder("event " + event + " is not of expected type [");
boolean first = true;
for (Event e : events) {
if (!first) {
sb.append(", ");
} else {
first = false;
}
sb.append(e);
}
sb.append(']');
throw new JsonException(sb.toString());
}
@POST
@Path("entityManager")
@Consumes(MediaType.APPLICATION_FORM_URLENCODED)
@Produces(MediaType.APPLICATION_JSON)
public String create(@FormParam("sessionId") String sessionId, @FormParam("entities") String json)
throws IcatException {
List<EntityBaseBean> entities = new ArrayList<>();
try (JsonParser parser = Json.createParser(new ByteArrayInputStream(json.getBytes()))) {
EventChecker checker = new EventChecker(parser);
checker.get(Event.START_ARRAY);
while (true) {
Event event = checker.get(Event.START_OBJECT, Event.END_ARRAY);
if (event == Event.END_ARRAY) {
break;
}
checker.get(Event.KEY_NAME);
String entityName = parser.getString();
checker.get(Event.START_OBJECT);
entities.add(parseEntity(checker, entityName));
checker.get(Event.END_OBJECT);
}
} catch (JsonException e) {
throw new IcatException(IcatExceptionType.INTERNAL, e.getMessage());
}
String userName = beanManager.getUserName(sessionId, manager);
List<CreateResponse> createResponses =
beanManager.createMany(userName, entities, manager, userTransaction);
ByteArrayOutputStream baos = new ByteArrayOutputStream();
try (JsonGenerator gen = Json.createGenerator(baos)) {
gen.writeStartArray();
for (CreateResponse createResponse : createResponses) {
transmitter.processMessage(createResponse.getNotificationMessage());
gen.write(createResponse.getPk());
}
gen.writeEnd();
} catch (JMSException e) {
throw new IcatException(
IcatException.IcatExceptionType.INTERNAL, e.getClass() + " " + e.getMessage());
}
return baos.toString();
}
@Override
public boolean didReceiveData(InputStream inputStream) {
JsonParser parser = Json.createParser(inputStream);
while (parser.hasNext()) {
JsonParser.Event event = parser.next();
switch (event) {
case KEY_NAME:
System.out.println("Key =" + parser.getString());
break;
case VALUE_STRING:
System.out.println("Value=" + parser.getString());
break;
default:
break;
}
}
return true;
}
@Test
public void testObjetoSimple() {
JsonParser parser =
Json.createParser(
Thread.currentThread().getContextClassLoader().getResourceAsStream("2.json"));
assertEquals(JsonParser.Event.START_OBJECT, parser.next());
assertEquals(JsonParser.Event.KEY_NAME, parser.next());
assertEquals(JsonParser.Event.VALUE_STRING, parser.next());
assertEquals(JsonParser.Event.KEY_NAME, parser.next());
assertEquals(JsonParser.Event.VALUE_STRING, parser.next());
assertEquals(JsonParser.Event.END_OBJECT, parser.next());
}
@POST
@Path("session")
@Consumes(MediaType.APPLICATION_FORM_URLENCODED)
@Produces(MediaType.APPLICATION_JSON)
public String login(@Context HttpServletRequest request, @FormParam("json") String jsonString)
throws IcatException {
logger.debug(jsonString);
if (jsonString == null) {
throw new IcatException(IcatExceptionType.BAD_PARAMETER, "json must not be null");
}
String plugin = null;
Map<String, String> credentials = new HashMap<>();
try (JsonParser parser = Json.createParser(new ByteArrayInputStream(jsonString.getBytes()))) {
String key = null;
boolean inCredentials = false;
while (parser.hasNext()) {
JsonParser.Event event = parser.next();
if (event == Event.KEY_NAME) {
key = parser.getString();
} else if (event == Event.VALUE_STRING) {
if (inCredentials) {
credentials.put(key, parser.getString());
} else {
if (key.equals("plugin")) {
plugin = parser.getString();
}
}
} else if (event == Event.START_ARRAY && key.equals("credentials")) {
inCredentials = true;
} else if (event == Event.END_ARRAY) {
inCredentials = false;
}
}
}
Authenticator authenticator = authPlugins.get(plugin);
if (authenticator == null) {
throw new IcatException(
IcatException.IcatExceptionType.SESSION,
"Authenticator mnemonic " + plugin + " not recognised");
}
logger.debug("Using " + plugin + " to authenticate");
String userName =
authenticator.authenticate(credentials, request.getRemoteAddr()).getUserName();
String sessionId = beanManager.login(userName, lifetimeMinutes, manager, userTransaction);
ByteArrayOutputStream baos = new ByteArrayOutputStream();
JsonGenerator gen = Json.createGenerator(baos);
gen.writeStartObject().write("sessionId", sessionId).writeEnd();
gen.close();
return baos.toString();
}
/** main */
public static void main(String[] args) {
String personJSONData =
" {"
+ " \"name\": \"John\", "
+ " \"age\" : 35, "
+ " \"isMarried\" : true, "
+ " \"email\": null, "
+ " \"address\": { "
+ " \"street\": \"#234, Pembroke Road\", "
+ " \"city\": \"Dublin\", "
+ " \"zipCode\": \"D4\" "
+ " }, "
+ " \"phoneNumbers\": [\"89-923-2342\", \"89-213-2364\"] "
+ " }";
JsonParser parser = Json.createParser(new StringReader(personJSONData));
while (parser.hasNext()) {
Event event = parser.next();
switch (event) {
case START_OBJECT:
System.out.print("{/*" + event + "*/ ");
break;
case END_OBJECT:
System.out.print("}/*" + event + "*/ ");
break;
case START_ARRAY:
System.out.print("[/*" + event + "*/ ");
break;
case END_ARRAY:
System.out.print("]/*" + event + "*/ ");
break;
case VALUE_NUMBER:
System.out.print(parser.getInt() + "/*" + event + "*/, ");
break;
case VALUE_STRING:
System.out.print(parser.getString() + "/*" + event + "*/, ");
break;
case VALUE_TRUE:
System.out.print("true/*" + event + "*/, ");
break;
case VALUE_FALSE:
System.out.print("false/*" + event + "*/, ");
break;
case VALUE_NULL:
System.out.print("null/*" + event + "*/, ");
break;
case KEY_NAME:
System.out.print(parser.getString() + "/*" + event + "*/: ");
break;
default:
System.out.print("Unrecognized Event : ");
}
}
}
/**
* PUT method for updating or creating an instance of ProductResource
*
* @param content representation for the resource
* @return an HTTP response with content of the updated or created resource.
*/
@PUT
@Path("{id}")
@Consumes(MediaType.APPLICATION_JSON)
public String putProduct(@PathParam("id") int id, String str) throws SQLException {
JsonParser parser = Json.createParser(new StringReader(str));
Map<String, String> productMap = new LinkedHashMap<String, String>();
String key = "";
String val = "";
while (parser.hasNext()) {
JsonParser.Event event = parser.next();
switch (event) {
case KEY_NAME:
key = parser.getString();
break;
case VALUE_STRING:
val = parser.getString();
productMap.put(key, val);
break;
case VALUE_NUMBER:
val = parser.getString();
productMap.put(key, val);
break;
default:
break;
}
}
if (conn == null) {
return "Not connected";
} else {
String query =
"UPDATE products SET name = ?, SET decription = ?, SET quantity = ? WHERE id = ? ";
PreparedStatement pstmt = conn.prepareStatement(query);
pstmt.setInt(4, id);
pstmt.setNString(1, productMap.get("name"));
pstmt.setNString(2, productMap.get("description"));
pstmt.setNString(3, productMap.get("quantity"));
return "row has been updated into the database";
}
}
@POST
@Path("/products")
@Consumes(MediaType.APPLICATION_JSON)
@Produces(MediaType.TEXT_PLAIN)
public String postProduct(String str) throws SQLException {
JsonParser parser = Json.createParser(new StringReader(str));
Map<String, String> productMap = new LinkedHashMap<String, String>();
String key = "";
String val = "";
while (parser.hasNext()) {
JsonParser.Event event = parser.next();
switch (event) {
case KEY_NAME:
key = parser.getString();
break;
case VALUE_STRING:
val = parser.getString();
productMap.put(key, val);
break;
case VALUE_NUMBER:
val = parser.getString();
productMap.put(key, val);
break;
default:
break;
}
}
if (conn == null) {
return "Not connected";
} else {
String query = "INSERT INTO products (name,decription,quantity) VALUES (?,?,?)";
PreparedStatement pstmt = conn.prepareStatement(query);
pstmt.setNString(1, productMap.get("product_id"));
pstmt.setNString(2, productMap.get("name"));
pstmt.setNString(3, productMap.get("description"));
pstmt.setNString(4, productMap.get("quantity"));
return "row has been inserted into the database";
}
}
@Test
public void testEstructuraCompuesta() {
JsonParser parser =
Json.createParser(
Thread.currentThread().getContextClassLoader().getResourceAsStream("4.json"));
assertEquals(JsonParser.Event.START_OBJECT, parser.next());
assertEquals(JsonParser.Event.KEY_NAME, parser.next());
assertEquals(JsonParser.Event.VALUE_STRING, parser.next());
assertEquals(JsonParser.Event.KEY_NAME, parser.next());
assertEquals(JsonParser.Event.VALUE_NUMBER, parser.next());
assertEquals(JsonParser.Event.KEY_NAME, parser.next());
assertEquals(JsonParser.Event.START_ARRAY, parser.next());
assertEquals(JsonParser.Event.VALUE_STRING, parser.next());
assertEquals(JsonParser.Event.VALUE_STRING, parser.next());
assertEquals(JsonParser.Event.VALUE_STRING, parser.next());
assertEquals(JsonParser.Event.END_ARRAY, parser.next());
assertEquals(JsonParser.Event.END_OBJECT, parser.next());
}
// Note that the START_OBJECT has already been swallowed
private EntityBaseBean parseEntity(EventChecker checker, String beanName) throws IcatException {
Class<EntityBaseBean> klass = EntityInfoHandler.getClass(beanName);
Map<Field, Method> getters = eiHandler.getGetters(klass);
Map<Field, Method> setters = eiHandler.getSetters(klass);
Set<Field> atts = eiHandler.getAttributes(klass);
Set<Field> updaters = eiHandler.getSettersForUpdate(klass).keySet();
Map<String, Field> fieldsByName = eiHandler.getFieldsByName(klass);
EntityBaseBean bean = null;
JsonParser parser = checker.parser;
try {
bean = klass.newInstance();
while (true) {
Event event = checker.get(Event.KEY_NAME, Event.END_OBJECT);
if (event == Event.END_OBJECT) {
break;
}
Field field = fieldsByName.get(parser.getString());
if (field == null) {
throw new IcatException(
IcatExceptionType.BAD_PARAMETER,
"Field " + parser.getString() + " not found in " + beanName);
} else if (field.getName().equals("id")) {
checker.get(Event.VALUE_NUMBER);
bean.setId(Long.parseLong(parser.getString()));
} else if (atts.contains(field)) {
checker.get(Event.VALUE_NUMBER, Event.VALUE_STRING);
String type = field.getType().getSimpleName();
Object arg;
if (type.equals("String")) {
arg = parser.getString();
} else if (type.equals("Integer")) {
arg = Integer.parseInt(parser.getString());
} else if (type.equals("Double")) {
arg = Double.parseDouble(parser.getString());
} else if (type.equals("Long")) {
arg = Long.parseLong(parser.getString());
} else if (type.equals("boolean")) {
arg = Boolean.parseBoolean(parser.getString());
// } else if (field.getType().isEnum()) {
// arg =
// gen.write(field.getName(), value.toString());
} else if (type.equals("Date")) {
synchronized (df8601) {
try {
arg = df8601.parse(parser.getString());
} catch (ParseException e) {
throw new IcatException(
IcatExceptionType.BAD_PARAMETER, "Badly formatted date " + parser.getString());
}
}
} else {
throw new IcatException(
IcatExceptionType.BAD_PARAMETER,
"Don't know how to parseEntity field of type " + type);
}
setters.get(field).invoke(bean, arg);
} else if (updaters.contains(field)) {
event = checker.get(Event.START_OBJECT);
EntityBaseBean arg = parseEntity(checker, field.getType().getSimpleName());
setters.get(field).invoke(bean, arg);
} else {
checker.get(Event.START_ARRAY);
@SuppressWarnings("unchecked")
List<EntityBaseBean> col = (List<EntityBaseBean>) getters.get(field).invoke(bean);
while (true) {
event = checker.get(Event.START_OBJECT, Event.END_ARRAY);
if (event == Event.END_ARRAY) {
break;
}
EntityBaseBean arg = parseEntity(checker, field.getName());
col.add(arg);
}
}
}
} catch (InstantiationException
| IllegalAccessException
| IllegalArgumentException
| InvocationTargetException
| JsonException e) {
throw new IcatException(
IcatExceptionType.BAD_PARAMETER,
e.getClass()
+ " "
+ e.getMessage()
+ " at "
+ parser.getLocation().getStreamOffset()
+ " in json");
}
return bean;
}
