/**
* Returns the signature of this method, as determined from its method descriptor.
*
* @return The signature of this method.
*/
public String getSignature() {
StringBuffer sb = new StringBuffer();
// Return type.
if (!isConstructor()) { // Don't print "void" return type.
sb.append(getReturnTypeString(false));
sb.append(' ');
}
// Method name and param list.
sb.append(getName());
sb.append('(');
appendParamDescriptors(sb);
sb.append(')');
// "throws" clause.
for (int i = 0; i < getAttributeCount(); i++) {
AttributeInfo ai = (AttributeInfo) attributes.get(i);
if (ai instanceof Exceptions) { // At most 1 Exceptions attribute
sb.append(" throws ");
Exceptions ex = (Exceptions) ai;
for (int j = 0; j < ex.getExceptionCount(); j++) {
sb.append(ex.getException(j));
if (j < ex.getExceptionCount() - 1) {
sb.append(", ");
}
}
}
}
return sb.toString();
}
public static CharBuf read(Reader input, CharBuf charBuf, final int bufSize) {
if (charBuf == null) {
charBuf = CharBuf.create(bufSize);
} else {
charBuf.readForRecycle();
}
try {
char[] buffer = charBuf.toCharArray();
int size = input.read(buffer);
if (size != -1) {
charBuf._len(size);
}
if (size < 0) {
return charBuf;
}
copy(input, charBuf);
} catch (IOException e) {
Exceptions.handle(e);
} finally {
try {
input.close();
} catch (IOException e) {
Exceptions.handle(e);
}
}
return charBuf;
}
/**
* Converts an exception to SystemException or OperationException depending on whether t
* implements Expetable.
*
* @see Exceptions#wrap
*/
public static SystemException wrap(Throwable t, int code) {
t = Exceptions.unwrap(t);
if (t instanceof Warning)
return (WarningException) Exceptions.wrap(t, WarningException.class, code);
if (t instanceof Expectable)
return (OperationException) Exceptions.wrap(t, OperationException.class, code);
return (SystemException) Exceptions.wrap(t, SystemException.class, code);
}
protected void traceFailure(final Throwable reason) {
if (Exceptions.isEarlyFinish(reason)) {
_shallowTraceBuilder.setResultType(ResultType.EARLY_FINISH);
} else {
_shallowTraceBuilder.setResultType(ResultType.ERROR);
_shallowTraceBuilder.setValue(Exceptions.failureToString(reason));
}
}
/** URL 编码, Encode默认为UTF-8. */
public static String urlEncode(String part) {
try {
return URLEncoder.encode(part, DEFAULT_URL_ENCODING);
} catch (UnsupportedEncodingException e) {
throw Exceptions.unchecked(e);
}
}
/**
* Returns {@code json} serialized to a JsonNode.
*
* @throws RuntimeException if serialization fails
*/
public static JsonNode toJsonNode(String json) {
try {
return mapper.readTree(json);
} catch (Exception e) {
throw Exceptions.uncheck(e, "Failed to deserialize json: {}", json);
}
}
public String encryptPassword(String password) {
try {
return Base64.encodeBase64String(hash(password));
} catch (NoSuchAlgorithmException ex) {
return Exceptions.chuck(ex);
}
}
/** Hex解码. */
public static byte[] decodeHex(String input) {
try {
return Hex.decodeHex(input.toCharArray());
} catch (DecoderException e) {
throw Exceptions.unchecked(e);
}
}
/**
* Deserializes the given {@code json} and injects it into the fields and methods of the {@code
* object}.
*
* @throws RuntimeException if deserialization or injection fails
*/
public static void injectMembers(Object object, JsonNode jsonNode) {
try {
rootMapper.readerForUpdating(object).readValue(jsonNode);
} catch (Exception e) {
throw Exceptions.uncheck(e, "Failed to inject members with json: {}", jsonNode);
}
}
@Override
public void onError(Throwable e) {
long p = produced;
if (p != 0L) {
arbiter.produced(p);
}
Observable<T> o;
try {
o = onError.call(e);
} catch (Throwable ex) {
Exceptions.throwIfFatal(ex);
actual.onError(new CompositeException(e, ex));
return;
}
if (o == null) {
actual.onError(
new NullPointerException("The onError function returned a null Observable."));
} else {
o.unsafeSubscribe(new ResumeSubscriber<T>(actual, arbiter));
}
}
/**
* Returns an instance of {@code targetType} deserialized from the given {@code json}.
*
* @throws RuntimeException if deserialization fails
*/
public static <T> T fromJson(String json, Class<T> targetType) {
try {
return (T) rootMapper.readValue(json, targetType);
} catch (Exception e) {
throw Exceptions.uncheck(e, "Failed to deserialize json: {}", json);
}
}
/**
* A static convience method for decoding an object from a String.
*
* <p>All exceptions are logged using LogMgr internally and then rethrown as GlueException with
* the same message as written to the log.
*
* @param title The name to be given to the object when decoded.
* @param bytes The Glue formated data to be decoded.
* @throws GlueException If unable to decode the string.
*/
public static Object decodeBytes(String title, byte bytes[]) throws GlueException {
try {
GlueDecoderImpl gd = new GlueDecoderImpl();
InputStream in = null;
try {
in = new ByteArrayInputStream(bytes);
GlueParser parser = new GlueParser(in);
return parser.Decode(gd, gd.getState());
} catch (ParseException ex) {
throw new GlueException(ex);
} catch (TokenMgrError ex) {
throw new GlueException(ex);
} finally {
in.close();
}
} catch (GlueException ex) {
String msg = ("Unable to Glue decode: " + title + "\n" + " " + ex.getMessage());
LogMgr.getInstance().log(LogMgr.Kind.Glu, LogMgr.Level.Severe, msg);
throw new GlueException(msg);
} catch (Exception ex) {
String msg = Exceptions.getFullMessage("INTERNAL ERROR:", ex, true, true);
LogMgr.getInstance().log(LogMgr.Kind.Glu, LogMgr.Level.Severe, msg);
throw new GlueException(msg);
}
}
/**
* Returns {@code node} serialized to a json string for the {@code node}.
*
* @throws RuntimeException if deserialization fails
*/
public static String toJson(JsonNode node) {
try {
ObjectWriter writer = mapper.writer();
return writer.writeValueAsString(node);
} catch (Exception e) {
throw Exceptions.uncheck(e, "Failed to serialize object: {}", node);
}
}
/**
* @param Will be JSON-encoded.
* @return the view query for chained calls
*/
public ViewQuery endKey(Object o) {
reset();
try {
endKey = mapper.writeValueAsString(o);
} catch (Exception e) {
throw Exceptions.propagate(e);
}
return this;
}
public boolean checkPassword(String unhashed, String hashed) {
try {
byte[] bytes = hash(unhashed);
byte[] check = Base64.decodeBase64(hashed);
return Arrays.equals(bytes, check);
} catch (NoSuchAlgorithmException ex) {
return Exceptions.chuck(ex);
}
}
public CharBuf(byte[] bytes) {
this.buffer = null;
try {
String str = new String(bytes, "UTF-8");
__init__(FastStringUtils.toCharArray(str));
} catch (UnsupportedEncodingException e) {
Exceptions.handle(e);
}
}
/**
* 使用HMAC-SHA1进行消息签名, 返回字节数组,长度为20字节.
*
* @param input 原始输入字符数组
* @param key HMAC-SHA1密钥
*/
public static byte[] hmacSha1(byte[] input, byte[] key) {
try {
SecretKey secretKey = new SecretKeySpec(key, HMACSHA1);
Mac mac = Mac.getInstance(HMACSHA1);
mac.init(secretKey);
return mac.doFinal(input);
} catch (GeneralSecurityException e) {
throw Exceptions.unchecked(e);
}
}
/** 生成AES密钥,可选长度为128,192,256位. */
public static byte[] generateAesKey(int keysize) {
try {
KeyGenerator keyGenerator = KeyGenerator.getInstance(AES);
keyGenerator.init(keysize);
SecretKey secretKey = keyGenerator.generateKey();
return secretKey.getEncoded();
} catch (GeneralSecurityException e) {
throw Exceptions.unchecked(e);
}
}
/** 生成HMAC-SHA1密钥,返回字节数组,长度为160位(20字节). HMAC-SHA1算法对密钥无特殊要求, RFC2401建议最少长度为160位(20字节). */
public static byte[] generateHmacSha1Key() {
try {
KeyGenerator keyGenerator = KeyGenerator.getInstance(HMACSHA1);
keyGenerator.init(DEFAULT_HMACSHA1_KEYSIZE);
SecretKey secretKey = keyGenerator.generateKey();
return secretKey.getEncoded();
} catch (GeneralSecurityException e) {
throw Exceptions.unchecked(e);
}
}
@Override
public void call(final Subscriber<? super T> subscriber) {
try {
// create the resource
final Resource resource = resourceFactory.call();
// create an action/subscription that disposes only once
final DisposeAction<Resource> disposeOnceOnly =
new DisposeAction<Resource>(dispose, resource);
// dispose on unsubscription
subscriber.add(disposeOnceOnly);
// create the observable
final Observable<? extends T> source =
observableFactory
// create the observable
.call(resource);
final Observable<? extends T> observable;
// supplement with on termination disposal if requested
if (disposeEagerly)
observable =
source
// dispose on completion or error
.doOnTerminate(disposeOnceOnly);
else observable = source;
try {
// start
observable.unsafeSubscribe(Subscribers.wrap(subscriber));
} catch (Throwable e) {
Throwable disposeError = disposeEagerlyIfRequested(disposeOnceOnly);
Exceptions.throwIfFatal(e);
Exceptions.throwIfFatal(disposeError);
if (disposeError != null)
subscriber.onError(new CompositeException(Arrays.asList(e, disposeError)));
else
// propagate error
subscriber.onError(e);
}
} catch (Throwable e) {
// then propagate error
Exceptions.throwOrReport(e, subscriber);
}
}
/**
* Returns {@code object} serialized to a JsonNode.
*
* @throws RuntimeException if deserialization fails
*/
public static JsonNode toJsonNode(Object object) {
try {
ObjectNode rootNode = mapper.createObjectNode();
JsonNode node = mapper.valueToTree(object);
rootNode.put(rootNameFor(Types.deProxy(object.getClass())), node);
return rootNode;
} catch (Exception e) {
throw Exceptions.uncheck(e, "Failed to serialize object: {}", object);
}
}
/**
* 使用AES加密或解密无编码的原始字节数组, 返回无编码的字节数组结果.
*
* @param input 原始字节数组
* @param key 符合AES要求的密钥
* @param mode Cipher.ENCRYPT_MODE 或 Cipher.DECRYPT_MODE
*/
private static byte[] aes(byte[] input, byte[] key, int mode) {
try {
SecretKey secretKey = new SecretKeySpec(key, AES);
Cipher cipher = Cipher.getInstance(AES);
cipher.init(mode, secretKey);
return cipher.doFinal(input);
} catch (GeneralSecurityException e) {
throw Exceptions.unchecked(e);
}
}
/**
* Returns {@code object} serialized to a json string.
*
* @throws RuntimeException if deserialization fails
*/
public static String toJson(Object object) {
Class<?> unwrappedType = Types.deProxy(object.getClass());
registerTarget(unwrappedType);
try {
ObjectWriter writer = rootMapper.writerWithType(unwrappedType);
return writer.writeValueAsString(object);
} catch (Exception e) {
throw Exceptions.uncheck(e, "Failed to serialize object: {}", object);
}
}
/**
* Returns a fully injected instance that is constructed by the {@code Injector} with member
* values being injected from the given {@code json}.
*
* @throws IllegalArgumentException if {@code node} does not contain a single root key
* @throws IllegalStateException if no target type has been registered for the {@code node}'s root
* key
* @throws RuntimeException if deserialization fails
*/
public static <T> T fromJson(String json) {
JsonNode node = null;
try {
node = mapper.readTree(json);
} catch (Exception e) {
throw Exceptions.uncheck(e, "Failed to deserialize json: {}", json);
}
return fromJson(node);
}
private void traceDone(final T value) {
_shallowTraceBuilder.setResultType(ResultType.SUCCESS);
final Function<T, String> traceValueProvider = _traceValueProvider;
if (traceValueProvider != null) {
try {
_shallowTraceBuilder.setValue(traceValueProvider.apply(value));
} catch (Exception e) {
_shallowTraceBuilder.setValue(Exceptions.failureToString(e));
}
}
}
public String toJson(ObjectMapper mapper) {
ObjectNode rootNode = mapper.createObjectNode();
ArrayNode keysNode = rootNode.putArray("keys");
for (Object key : keys) {
keysNode.addPOJO(key);
}
try {
return mapper.writeValueAsString(rootNode);
} catch (Exception e) {
throw Exceptions.propagate(e);
}
}
public ContinuousChangesFeed(String dbName, HttpResponse httpResponse) {
this.httpResponse = httpResponse;
try {
reader = new BufferedReader(new InputStreamReader(httpResponse.getContent(), "UTF-8"));
thread.setName(
String.format(
"ektorp-%s-changes-listening-thread-%s", dbName, THREAD_COUNT.getAndIncrement()));
thread.start();
} catch (UnsupportedEncodingException e) {
throw Exceptions.propagate(e);
}
}
private DesignDocument.View loadViewFromFile(
Map<String, DesignDocument.View> views, View input, Class<?> repositoryClass) {
try {
InputStream in = repositoryClass.getResourceAsStream(input.file());
if (in == null) {
throw new FileNotFoundException("Could not load view file with path: " + input.file());
}
String json = IOUtils.toString(in, "UTF-8");
return mapper().readValue(json.replaceAll("\n", ""), DesignDocument.View.class);
} catch (Exception e) {
throw Exceptions.propagate(e);
}
}
public List<AccessLevel> GenerateObjectList(ResultSet resultSet) {
List<AccessLevel> AccessLevelList = new ArrayList<AccessLevel>();
try {
while (resultSet.next()) {
AccessLevel AccessLevelObj =
new AccessLevel(resultSet.getInt("CodAccessLevel"), resultSet.getString("Description"));
AccessLevelList.add(AccessLevelObj);
}
} catch (SQLException ex) {
exception.manageException(ex);
}
return AccessLevelList;
}
public static long copyLarge(Reader reader, Writer writer, char[] buffer) {
long count = 0;
int n;
try {
while (EOF != (n = reader.read(buffer))) {
writer.write(buffer, 0, n);
count += n;
}
} catch (IOException e) {
Exceptions.handle(e);
}
return count;
}
