public ArrayList<String> parseJSONArray(String array) throws ParseException {
ArrayList<String> arrayList = new ArrayList<String>();
try {
JSONParser parser = new JSONParser();
Object obj = parser.parse(array);
JSONArray parsedArray = (JSONArray) obj;
for (int i = 0; i < parsedArray.size(); i++) {
arrayList.add((String) parsedArray.get(i));
}
} catch (ParseException pe) {
throw new ParseException(pe.getPosition(), pe.getErrorType(), pe);
}
return arrayList;
}
@SuppressWarnings("unchecked")
public void testDecode() throws Exception {
System.out.println("=======decode=======");
String s = "[0,{\"1\":{\"2\":{\"3\":{\"4\":[5,{\"6\":7}]}}}}]";
Object obj = JSONValue.parse(s);
JSONArray array = (JSONArray) obj;
System.out.println("======the 2nd element of array======");
System.out.println(array.get(1));
System.out.println();
assertEquals("{\"1\":{\"2\":{\"3\":{\"4\":[5,{\"6\":7}]}}}}", array.get(1).toString());
JSONObject obj2 = (JSONObject) array.get(1);
System.out.println("======field \"1\"==========");
System.out.println(obj2.get("1"));
assertEquals("{\"2\":{\"3\":{\"4\":[5,{\"6\":7}]}}}", obj2.get("1").toString());
s = "{}";
obj = JSONValue.parse(s);
assertEquals("{}", obj.toString());
s = "[5,]";
obj = JSONValue.parse(s);
assertEquals("[5]", obj.toString());
s = "[5,,2]";
obj = JSONValue.parse(s);
assertEquals("[5,2]", obj.toString());
s = "[\"hello\\bworld\\\"abc\\tdef\\\\ghi\\rjkl\\n123\\u4e2d\"]";
obj = JSONValue.parse(s);
assertEquals("hello\bworld\"abc\tdef\\ghi\rjkl\n123中", ((List<Object>) obj).get(0).toString());
JSONParser parser = new JSONParser();
s = "{\"name\":";
try {
obj = parser.parse(s);
} catch (ParseException pe) {
assertEquals(ParseException.ERROR_UNEXPECTED_TOKEN, pe.getErrorType());
assertEquals(8, pe.getPosition());
}
s = "{\"name\":}";
try {
obj = parser.parse(s);
} catch (ParseException pe) {
assertEquals(ParseException.ERROR_UNEXPECTED_TOKEN, pe.getErrorType());
assertEquals(8, pe.getPosition());
}
s = "{\"name";
try {
obj = parser.parse(s);
} catch (ParseException pe) {
assertEquals(ParseException.ERROR_UNEXPECTED_TOKEN, pe.getErrorType());
assertEquals(6, pe.getPosition());
}
s = "[[null, 123.45, \"a\\\tb c\"}, true]";
try {
parser.parse(s);
} catch (ParseException pe) {
assertEquals(24, pe.getPosition());
System.out.println("Error at character position: " + pe.getPosition());
switch (pe.getErrorType()) {
case ParseException.ERROR_UNEXPECTED_TOKEN:
System.out.println("Unexpected token: " + pe.getUnexpectedObject());
break;
case ParseException.ERROR_UNEXPECTED_CHAR:
System.out.println("Unexpected character: " + pe.getUnexpectedObject());
break;
case ParseException.ERROR_UNEXPECTED_EXCEPTION:
((Exception) pe.getUnexpectedObject()).printStackTrace();
break;
}
}
s = "{\"first\": 123, \"second\": [4, 5, 6], \"third\": 789}";
ContainerFactory containerFactory =
new ContainerFactory() {
public List<Object> creatArrayContainer() {
return new LinkedList<Object>();
}
public Map<Object, Object> createObjectContainer() {
return new LinkedHashMap<Object, Object>();
}
};
try {
Map<Object, Object> json = (Map<Object, Object>) parser.parse(s, containerFactory);
Iterator<Map.Entry<Object, Object>> iter = json.entrySet().iterator();
System.out.println("==iterate result==");
while (iter.hasNext()) {
Map.Entry<Object, Object> entry = (Map.Entry<Object, Object>) iter.next();
System.out.println(entry.getKey() + "=>" + entry.getValue());
}
System.out.println("==toJSONString()==");
System.out.println(JSONValue.toJSONString(json));
assertEquals(
"{\"first\":123,\"second\":[4,5,6],\"third\":789}", JSONValue.toJSONString(json));
} catch (ParseException pe) {
pe.printStackTrace();
}
s = "{\"first\": 123, \"second\": [{\"s1\":{\"s11\":\"v11\"}}, 4, 5, 6], \"third\": 789}";
ContentHandler myHandler =
new ContentHandler() {
public boolean endArray() throws ParseException {
System.out.println("endArray()");
return true;
}
public void endJSON() throws ParseException {
System.out.println("endJSON()");
}
public boolean endObject() throws ParseException {
System.out.println("endObject()");
return true;
}
public boolean endObjectEntry() throws ParseException {
System.out.println("endObjectEntry()");
return true;
}
public boolean primitive(Object value) throws ParseException {
System.out.println("primitive(): " + value);
return true;
}
public boolean startArray() throws ParseException {
System.out.println("startArray()");
return true;
}
public void startJSON() throws ParseException {
System.out.println("startJSON()");
}
public boolean startObject() throws ParseException {
System.out.println("startObject()");
return true;
}
public boolean startObjectEntry(String key) throws ParseException {
System.out.println("startObjectEntry(), key:" + key);
return true;
}
};
try {
parser.parse(s, myHandler);
} catch (ParseException pe) {
pe.printStackTrace();
}
class KeyFinder implements ContentHandler {
private Object value;
private boolean found = false;
private boolean end = false;
private String key;
private String matchKey;
public void setMatchKey(String matchKey) {
this.matchKey = matchKey;
}
public Object getValue() {
return value;
}
public boolean isEnd() {
return end;
}
public void setFound(boolean found) {
this.found = found;
}
public boolean isFound() {
return found;
}
public void startJSON() throws ParseException, IOException {
found = false;
end = false;
}
public void endJSON() throws ParseException, IOException {
end = true;
}
public boolean primitive(Object value) throws ParseException, IOException {
if (key != null) {
if (key.equals(matchKey)) {
found = true;
this.value = value;
key = null;
return false;
}
}
return true;
}
public boolean startArray() throws ParseException, IOException {
return true;
}
public boolean startObject() throws ParseException, IOException {
return true;
}
public boolean startObjectEntry(String key) throws ParseException, IOException {
this.key = key;
return true;
}
public boolean endArray() throws ParseException, IOException {
return false;
}
public boolean endObject() throws ParseException, IOException {
return true;
}
public boolean endObjectEntry() throws ParseException, IOException {
return true;
}
};
s =
"{\"first\": 123, \"second\": [{\"k1\":{\"id\":\"id1\"}}, 4, 5, 6, {\"id\": 123}], \"third\": 789, \"id\": null}";
parser.reset();
KeyFinder keyFinder = new KeyFinder();
keyFinder.setMatchKey("id");
int i = 0;
try {
while (!keyFinder.isEnd()) {
parser.parse(s, keyFinder, true);
if (keyFinder.isFound()) {
i++;
keyFinder.setFound(false);
System.out.println("found id:");
System.out.println(keyFinder.getValue());
if (i == 1) assertEquals("id1", keyFinder.getValue());
if (i == 2) {
assertTrue(keyFinder.getValue() instanceof Number);
assertEquals("123", String.valueOf(keyFinder.getValue()));
}
if (i == 3) assertTrue(null == keyFinder.getValue());
}
}
} catch (ParseException pe) {
pe.printStackTrace();
}
}
public void testYylex() throws Exception {
String s = "\"\\/\"";
System.out.println(s);
StringReader in = new StringReader(s);
Yylex lexer = new Yylex(in);
Yytoken token = lexer.yylex();
assertEquals(Yytoken.TYPE_VALUE, token.type);
assertEquals("/", token.value);
s = "\"abc\\/\\r\\b\\n\\t\\f\\\\\"";
System.out.println(s);
in = new StringReader(s);
lexer = new Yylex(in);
token = lexer.yylex();
assertEquals(Yytoken.TYPE_VALUE, token.type);
assertEquals("abc/\r\b\n\t\f\\", token.value);
s = "[\t \n\r\n{ \t \t\n\r}";
System.out.println(s);
in = new StringReader(s);
lexer = new Yylex(in);
token = lexer.yylex();
assertEquals(Yytoken.TYPE_LEFT_SQUARE, token.type);
token = lexer.yylex();
assertEquals(Yytoken.TYPE_LEFT_BRACE, token.type);
token = lexer.yylex();
assertEquals(Yytoken.TYPE_RIGHT_BRACE, token.type);
s = "\b\f{";
System.out.println(s);
in = new StringReader(s);
lexer = new Yylex(in);
ParseException err = null;
try {
token = lexer.yylex();
} catch (ParseException e) {
err = e;
System.out.println("error:" + err);
assertEquals(ParseException.ERROR_UNEXPECTED_CHAR, e.getErrorType());
assertEquals(0, e.getPosition());
assertEquals(new Character('\b'), e.getUnexpectedObject());
} catch (IOException ie) {
throw ie;
}
assertTrue(err != null);
s = "{a : b}";
System.out.println(s);
in = new StringReader(s);
lexer = new Yylex(in);
err = null;
try {
lexer.yylex();
token = lexer.yylex();
} catch (ParseException e) {
err = e;
System.out.println("error:" + err);
assertEquals(ParseException.ERROR_UNEXPECTED_CHAR, e.getErrorType());
assertEquals(new Character('a'), e.getUnexpectedObject());
assertEquals(1, e.getPosition());
} catch (IOException ie) {
throw ie;
}
assertTrue(err != null);
}