/**
* Joins array elements to string.
*
* @param arr Array.
* @return String.
*/
@Nullable
public static String compactArray(Object[] arr) {
if (arr == null || arr.length == 0) return null;
String sep = ", ";
StringBuilder sb = new StringBuilder();
for (Object s : arr) sb.append(s).append(sep);
if (sb.length() > 0) sb.setLength(sb.length() - sep.length());
return U.compact(sb.toString());
}
public static void main(String[] args) throws MessagingException, IOException {
Properties props = new Properties();
try (InputStream in = Files.newInputStream(Paths.get("mail", "mail.properties"))) {
props.load(in);
}
List<String> lines = Files.readAllLines(Paths.get(args[0]), Charset.forName("UTF-8"));
String from = lines.get(0);
String to = lines.get(1);
String subject = lines.get(2);
StringBuilder builder = new StringBuilder();
for (int i = 3; i < lines.size(); i++) {
builder.append(lines.get(i));
builder.append("\n");
}
Console console = System.console();
String password = new String(console.readPassword("Password: "));
Session mailSession = Session.getDefaultInstance(props);
// mailSession.setDebug(true);
MimeMessage message = new MimeMessage(mailSession);
message.setFrom(new InternetAddress(from));
message.addRecipient(RecipientType.TO, new InternetAddress(to));
message.setSubject(subject);
message.setText(builder.toString());
Transport tr = mailSession.getTransport();
try {
tr.connect(null, password);
tr.sendMessage(message, message.getAllRecipients());
} finally {
tr.close();
}
}
/**
* Concatenates some {@link NlsString} objects. The result has the charset and collation of the
* first element. The other elements must have matching (or null) charset and collation.
* Concatenates all at once, not pairwise, to avoid string copies.
*
* @param args array of {@link NlsString} to be concatenated
*/
public static NlsString concat(List<NlsString> args) {
if (args.size() < 2) {
return args.get(0);
}
String charSetName = args.get(0).charsetName;
SqlCollation collation = args.get(0).collation;
int length = args.get(0).value.length();
// sum string lengths and validate
for (int i = 1; i < args.size(); i++) {
final NlsString arg = args.get(i);
length += arg.value.length();
if (!((arg.charsetName == null) || arg.charsetName.equals(charSetName))) {
throw new IllegalArgumentException("mismatched charsets");
}
if (!((arg.collation == null) || arg.collation.equals(collation))) {
throw new IllegalArgumentException("mismatched collations");
}
}
StringBuilder sb = new StringBuilder(length);
for (NlsString arg : args) {
sb.append(arg.value);
}
return new NlsString(sb.toString(), charSetName, collation);
}
/**
* Computes the digest field. This should be called in every non-abstract subclass constructor
* once the type is fully defined.
*/
protected void computeDigest() {
StringBuilder sb = new StringBuilder();
generateTypeString(sb, true);
if (!isNullable()) {
sb.append(" NOT NULL");
}
digest = sb.toString();
}
private Number readNumber() {
char c;
boolean d = false;
StringBuilder sb = new StringBuilder();
while (true)
switch (c = peek()) {
case '.':
case 'e':
case 'E':
case '+':
d = true;
case '-':
sb.append(next());
continue;
default:
if (check(c, '0', '9')) sb.append(next());
else if (check(c, ",:; \n\r\t>}])")) {
return d ? new BigDecimal(sb.toString()) : new BigInteger(sb.toString());
} else throw new RuntimeException("unexpected character: " + c);
}
}
/**
* Returns compact class host.
*
* @param obj Object to compact.
* @return String.
*/
@Nullable
public static Object compactObject(Object obj) {
if (obj == null) return null;
if (obj instanceof Enum) return obj.toString();
if (obj instanceof String || obj instanceof Boolean || obj instanceof Number) return obj;
if (obj instanceof Collection) {
Collection col = (Collection) obj;
Object[] res = new Object[col.size()];
int i = 0;
for (Object elm : col) res[i++] = compactObject(elm);
return res;
}
if (obj.getClass().isArray()) {
Class<?> arrType = obj.getClass().getComponentType();
if (arrType.isPrimitive()) {
if (obj instanceof boolean[]) return Arrays.toString((boolean[]) obj);
if (obj instanceof byte[]) return Arrays.toString((byte[]) obj);
if (obj instanceof short[]) return Arrays.toString((short[]) obj);
if (obj instanceof int[]) return Arrays.toString((int[]) obj);
if (obj instanceof long[]) return Arrays.toString((long[]) obj);
if (obj instanceof float[]) return Arrays.toString((float[]) obj);
if (obj instanceof double[]) return Arrays.toString((double[]) obj);
}
Object[] arr = (Object[]) obj;
int iMax = arr.length - 1;
StringBuilder sb = new StringBuilder("[");
for (int i = 0; i <= iMax; i++) {
sb.append(compactObject(arr[i]));
if (i != iMax) sb.append(", ");
}
sb.append("]");
return sb.toString();
}
return U.compact(obj.getClass().getName());
}
/**
* Converts the given string to camel case.
*
* @param string string to convert
* @return resulting string
*/
public static String camelCase(final String string) {
final StringBuilder sb = new StringBuilder(string.length());
boolean dash = false;
for (int p = 0; p < string.length(); p++) {
final char ch = string.charAt(p);
if (dash) {
sb.append(Character.toUpperCase(ch));
dash = false;
} else {
dash = ch == '-';
if (!dash) sb.append(ch);
}
}
return sb.toString();
}
// Find and unescape a string.
private String readString() {
StringBuilder sb = new StringBuilder();
char c = next();
if (c != '"') throw new RuntimeException("expecting start of string");
while (true)
switch (c = next()) {
case '"':
return sb.toString();
case '\\':
sb.append(readEscaped());
continue;
default:
if (Character.isISOControl(c)) throw new RuntimeException("illegal character in string");
sb.append(c);
}
}
/**
* Returns an MD5 hash.
*
* @param pw String
* @return String
*/
private static String md5(final String pw) {
final StringBuilder sb = new StringBuilder();
try {
final MessageDigest md = MessageDigest.getInstance("MD5");
md.update(pw.getBytes());
for (final byte b : md.digest()) {
final String s = Integer.toHexString(b & 0xFF);
if (s.length() == 1) sb.append('0');
sb.append(s);
}
} catch (final NoSuchAlgorithmException ex) {
// should not occur
ex.printStackTrace();
}
return sb.toString();
}
/**
* Returns a string of the specified UTF8 token.
*
* @param token token
* @param start start position
* @param length length
* @return string
*/
private static String utf8(final byte[] token, final int start, final int length) {
// input is assumed to be correct UTF8. if input contains codepoints
// larger than Character.MAX_CODE_POINT, results might be unexpected.
final StringBuilder sb = new StringBuilder(length << 1);
final int il = Math.min(start + length, token.length);
for (int i = start; i < il; i += cl(token, i)) {
final int cp = cp(token, i);
if (cp < Character.MIN_SUPPLEMENTARY_CODE_POINT) {
sb.append((char) cp);
} else {
final int o = cp - Character.MIN_SUPPLEMENTARY_CODE_POINT;
sb.append((char) ((o >>> 10) + Character.MIN_HIGH_SURROGATE));
sb.append((char) ((o & 0x3ff) + Character.MIN_LOW_SURROGATE));
}
}
return sb.toString();
}
/**
* Returns the string quoted for SQL, for example <code>_ISO-8859-1'is it a
* plane? no it''s superman!'</code>.
*
* @param prefix if true, prefix the character set name
* @param suffix if true, suffix the collation clause
* @return the quoted string
*/
public String asSql(boolean prefix, boolean suffix) {
StringBuilder ret = new StringBuilder();
if (prefix && (null != charsetName)) {
ret.append("_");
ret.append(charsetName);
}
ret.append("'");
ret.append(Util.replace(value, "'", "''"));
ret.append("'");
// NOTE jvs 3-Feb-2005: see FRG-78 for why this should go away
if (false) {
if (suffix && (null != collation)) {
ret.append(" ");
ret.append(collation.toString());
}
}
return ret.toString();
}
// implement RelDataType
public String toString() {
StringBuilder sb = new StringBuilder();
generateTypeString(sb, false);
return sb.toString();
}
// Try to read an atom.
private Atom readAtom() {
StringBuilder sb = new StringBuilder();
for (char c = peek(); validAtomPart(c); c = peek()) sb.append(next());
return new Atom(sb.toString());
}