DateTime.java
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|---|---|---|
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org.apache.derby.client.am |
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Apache Derby |
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| JAVA0076 | JAVA0076 Use of magic number |  |
| JAVA0177 | JAVA0177 Variable declaration missing initializer | |
| LINE_COMMENT | Number of line comments | |
| SIZE | Size of the file in bytes | |
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| LOGICAL_LINES | Number of statements | |
| ELOC | Effective lines of code | |
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| LINES | Number of lines in the source file | |
| DOC_COMMENT | Number of javadoc comment lines | |
| LOC | Lines of code | |
| JAVA0034 | JAVA0034 Missing braces in if statement | |
| DECL_COMMENTS | Comments in declarations | |
| UNIQUE_OPERANDS | Number of unique operands | |
| INTERFACE_COMPLEXITY | Interface complexity | |
| PROGRAM_VOCAB | Halstead program vocabulary | |
| JAVA0117 | JAVA0117 Missing javadoc: method 'method' | |
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| JAVA0108 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| COMPARISONS | Number of comparison operators | |
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| JAVA0145 | JAVA0145 Tab character used in source file | |
/*
Derby - Class org.apache.derby.client.am.DateTime
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package org.apache.derby.client.am;
import org.apache.derby.shared.common.i18n.MessageUtil;
import org.apache.derby.shared.common.reference.SQLState;
import java.io.UnsupportedEncodingException;
import java.util.Calendar;
import org.apache.derby.client.net.Typdef;
/**
* High performance converters from date/time byte encodings to JDBC Date, Time and Timestamp objects.
* <p/>
* Using this class for direct date/time conversions from bytes offers superior performance over the alternative method
* of first constructing a Java String from the encoded bytes, and then using {@link java.sql.Date#valueOf
* java.sql.Date.valueOf()}, {@link java.sql.Time#valueOf java.sql.Time.valueOf()} or {@link java.sql.Timestamp#valueOf
* java.sql.Timestamp.valueOf()}.
* <p/>
*/
public class DateTime {
// Hide the default constructor
private DateTime() {
}
private static final int dateRepresentationLength = 10;
private static final int timeRepresentationLength = 8;
private static final int timestampRepresentationLength = 26;
// *********************************************************
// ********** Output converters (byte[] -> class) **********
// *********************************************************
/**
* Expected character representation is DERBY string representation of a date,
* which is in JIS format: <code> yyyy-mm-dd </code>
*
* @param buffer
* @param offset
* @param recyclableCal
* @param encoding encoding of buffer data
* @return Date translated from buffer with specified encoding
* @throws UnsupportedEncodingException
*/
public static final java.sql.Date dateBytesToDate(byte[] buffer,
int offset,
Calendar recyclableCal,
String encoding)
throws UnsupportedEncodingException {
int year, month, day;
String date = new String(buffer, offset,
DateTime.dateRepresentationLength,encoding);
int yearIndx, monthIndx, dayIndx;
if (date.charAt(4) == '-') {
// JIS format: yyyy-mm-dd.
yearIndx = 0;
monthIndx = 5;
dayIndx = 8;
} else {
throw new java.lang.IllegalArgumentException(
SqlException.getMessageUtil().getTextMessage(
SQLState.LANG_FORMAT_EXCEPTION));
}
int zeroBase = ((int) '0');
// Character arithmetic is used rather than
// the less efficient Integer.parseInt (date.substring()).
year =
1000 * (((int) date.charAt(yearIndx)) - zeroBase) +
100 * (((int) date.charAt(yearIndx + 1)) - zeroBase) +
10 * (((int) date.charAt(yearIndx + 2)) - zeroBase) +
(((int) date.charAt(yearIndx + 3)) - zeroBase);
month =
10 * (((int) date.charAt(monthIndx)) - zeroBase) +
(((int) date.charAt(monthIndx + 1)) - zeroBase) -
1;
day =
10 * (((int) date.charAt(dayIndx)) - zeroBase) +
(((int) date.charAt(dayIndx + 1)) - zeroBase);
Calendar cal = getCleanCalendar(recyclableCal);
cal.set(year, month, day);
return new java.sql.Date(cal.getTimeInMillis());
}
/**
* Expected character representation is DERBY string representation of time,
* which is in the format: <code> hh.mm.ss </code>
* @param buffer
* @param offset
* @param recyclableCal
* @param encoding encoding of buffer
* @return Time translated from buffer with specified encoding
* @throws UnsupportedEncodingException
*/
public static final java.sql.Time timeBytesToTime(byte[] buffer,
int offset,
Calendar recyclableCal,
String encoding)
throws UnsupportedEncodingException {
int hour, minute, second;
String time = new String(buffer, offset,
DateTime.timeRepresentationLength, encoding);
int zeroBase = ((int) '0');
// compute hour.
hour =
10 * (((int) time.charAt(0)) - zeroBase) +
(((int) time.charAt(1)) - zeroBase);
// compute minute.
minute =
10 * (((int) time.charAt(3)) - zeroBase) +
(((int) time.charAt(4)) - zeroBase);
// compute second.
second =
10 * (((int) time.charAt(6)) - zeroBase) +
(((int) time.charAt(7)) - zeroBase);
Calendar cal = getCleanCalendar(recyclableCal);
cal.set(1970, Calendar.JANUARY, 1, hour, minute, second);
return new java.sql.Time(cal.getTimeInMillis());
}
/**
* Expected character representation is DERBY string representation of a timestamp:
* <code>yyyy-mm-dd-hh.mm.ss.ffffff</code>.
*
* @param buffer
* @param offset
* @param recyclableCal
* @param encoding encoding of buffer
* @return TimeStamp translated from buffer with specified encoding
* @throws UnsupportedEncodingException
*/
public static final java.sql.Timestamp timestampBytesToTimestamp(byte[] buffer,
int offset,
Calendar recyclableCal,
String encoding)
throws UnsupportedEncodingException
{
int year, month, day, hour, minute, second, fraction;
String timestamp = new String(buffer, offset,
DateTime.timestampRepresentationLength,encoding);
Calendar cal = getCleanCalendar(recyclableCal);
/* java.sql.Timestamp has nanosecond precision, so we have to keep
* the parsed microseconds value and use that to set nanos.
*/
int micros = parseTimestampString(timestamp, cal);
java.sql.Timestamp ts = new java.sql.Timestamp(cal.getTimeInMillis());
ts.setNanos(micros * 1000);
return ts;
}
/**
* Parse a String of the form <code>yyyy-mm-dd-hh.mm.ss.ffffff</code>
* and store the various fields into the received Calendar object.
*
* @param timestamp Timestamp value to parse, as a String.
* @param cal Calendar into which to store the parsed fields. Should
* not be null.
*
* @return The microseconds field as parsed from the timestamp string.
* This cannot be set in the Calendar object but we still want to
* preserve the value, in case the caller needs it (for example, to
* create a java.sql.Timestamp with microsecond precision).
*/
private static int parseTimestampString(String timestamp,
Calendar cal)
{
int zeroBase = ((int) '0');
cal.set(Calendar.YEAR,
1000 * (((int) timestamp.charAt(0)) - zeroBase) +
100 * (((int) timestamp.charAt(1)) - zeroBase) +
10 * (((int) timestamp.charAt(2)) - zeroBase) +
(((int) timestamp.charAt(3)) - zeroBase));
cal.set(Calendar.MONTH,
10 * (((int) timestamp.charAt(5)) - zeroBase) +
(((int) timestamp.charAt(6)) - zeroBase) - 1);
cal.set(Calendar.DAY_OF_MONTH,
10 * (((int) timestamp.charAt(8)) - zeroBase) +
(((int) timestamp.charAt(9)) - zeroBase));
cal.set(Calendar.HOUR,
10 * (((int) timestamp.charAt(11)) - zeroBase) +
(((int) timestamp.charAt(12)) - zeroBase));
cal.set(Calendar.MINUTE,
10 * (((int) timestamp.charAt(14)) - zeroBase) +
(((int) timestamp.charAt(15)) - zeroBase));
cal.set(Calendar.SECOND,
10 * (((int) timestamp.charAt(17)) - zeroBase) +
(((int) timestamp.charAt(18)) - zeroBase));
int micros =
100000 * (((int) timestamp.charAt(20)) - zeroBase) +
10000 * (((int) timestamp.charAt(21)) - zeroBase) +
1000 * (((int) timestamp.charAt(22)) - zeroBase) +
100 * (((int) timestamp.charAt(23)) - zeroBase) +
10 * (((int) timestamp.charAt(24)) - zeroBase) +
(((int) timestamp.charAt(25)) - zeroBase);
/* The "ffffff" that we parsed is microseconds. In order to
* capture that information inside of the MILLISECOND field
* we have to divide by 1000.
*/
cal.set(Calendar.MILLISECOND, micros / 1000);
return micros;
}
// ********************************************************
// ********** Input converters (class -> byte[]) **********
// ********************************************************
/**
* Date is converted to a char representation in JDBC date format: <code>yyyy-mm-dd</code> date format
* and then converted to bytes using UTF8 encoding
* @param buffer bytes in UTF8 encoding of the date
* @param offset write into the buffer from this offset
* @param date date value
* @return DateTime.dateRepresentationLength. This is the fixed length in
* bytes taken to represent the date value
* @throws SqlException
* @throws UnsupportedEncodingException if UTF8 Encoding is not supported
*/
public static final int dateToDateBytes(byte[] buffer,
int offset,
java.sql.Date date)
throws SqlException,UnsupportedEncodingException {
int year = date.getYear() + 1900;
if (year > 9999) {
throw new SqlException(null,
new ClientMessageId(SQLState.YEAR_EXCEEDS_MAXIMUM),
new Integer(year), "9999");
}
int month = date.getMonth() + 1;
int day = date.getDate();
char[] dateChars = new char[DateTime.dateRepresentationLength];
int zeroBase = (int) '0';
dateChars[0] = (char) (year / 1000 + zeroBase);
dateChars[1] = (char) ((year % 1000) / 100 + zeroBase);
dateChars[2] = (char) ((year % 100) / 10 + zeroBase);
dateChars[3] = (char) (year % 10 + +zeroBase);
dateChars[4] = '-';
dateChars[5] = (char) (month / 10 + zeroBase);
dateChars[6] = (char) (month % 10 + zeroBase);
dateChars[7] = '-';
dateChars[8] = (char) (day / 10 + zeroBase);
dateChars[9] = (char) (day % 10 + zeroBase);
// Network server expects to read the date parameter value bytes with
// UTF-8 encoding. Reference - DERBY-1127
// see DRDAConnThread.readAndSetParams
byte[] dateBytes = (new String(dateChars)).getBytes(Typdef.UTF8ENCODING);
System.arraycopy(dateBytes, 0, buffer, offset, DateTime.dateRepresentationLength);
return DateTime.dateRepresentationLength;
}
/**
* java.sql.Time is converted to character representation which is in JDBC time escape
* format: <code>hh:mm:ss</code>, which is the same as JIS time format in DERBY string
* representation of a time. The char representation is converted to bytes using UTF8
* encoding.
* @param buffer bytes in UTF8 encoding of the time
* @param offset write into the buffer from this offset
* @param time java.sql.Time value
* @return DateTime.timeRepresentationLength. This is the fixed length in
* bytes taken to represent the time value
* @throws UnsupportedEncodingException
*/
public static final int timeToTimeBytes(byte[] buffer,
int offset,
java.sql.Time time)
throws UnsupportedEncodingException {
int hour = time.getHours();
int minute = time.getMinutes();
int second = time.getSeconds();
char[] timeChars = new char[DateTime.timeRepresentationLength];
int zeroBase = (int) '0';
timeChars[0] = (char) (hour / 10 + zeroBase);
timeChars[1] = (char) (hour % 10 + +zeroBase);
timeChars[2] = ':';
timeChars[3] = (char) (minute / 10 + zeroBase);
timeChars[4] = (char) (minute % 10 + zeroBase);
timeChars[5] = ':';
timeChars[6] = (char) (second / 10 + zeroBase);
timeChars[7] = (char) (second % 10 + zeroBase);
// Network server expects to read the time parameter value bytes with
// UTF-8 encoding. Reference - DERBY-1127
// see DRDAConnThread.readAndSetParams
byte[] timeBytes = (new String(timeChars)).getBytes(Typdef.UTF8ENCODING);
System.arraycopy(timeBytes, 0, buffer, offset, DateTime.timeRepresentationLength);
return DateTime.timeRepresentationLength;
}
/**
* java.sql.Timestamp is converted to a character representation which is in DERBY string
* representation of a timestamp: <code>yyyy-mm-dd-hh.mm.ss.ffffff</code>.
* and then converted to bytes using UTF8 encoding
* @param buffer bytes in UTF8 encoding of the timestamp
* @param offset write into the buffer from this offset
* @param timestamp timestamp value
* @return DateTime.timestampRepresentationLength. This is the fixed
* length in bytes, taken to represent the timestamp value
* @throws SqlException
* @throws UnsupportedEncodingException
*/
public static final int timestampToTimestampBytes(byte[] buffer,
int offset,
java.sql.Timestamp timestamp)
throws SqlException,UnsupportedEncodingException {
int year = timestamp.getYear() + 1900;
if (year > 9999) {
throw new SqlException(null,
new ClientMessageId(SQLState.YEAR_EXCEEDS_MAXIMUM),
new Integer(year), "9999");
}
int month = timestamp.getMonth() + 1;
int day = timestamp.getDate();
int hour = timestamp.getHours();
int minute = timestamp.getMinutes();
int second = timestamp.getSeconds();
int microsecond = timestamp.getNanos() / 1000;
char[] timestampChars = new char[DateTime.timestampRepresentationLength];
int zeroBase = (int) '0';
timestampChars[0] = (char) (year / 1000 + zeroBase);
timestampChars[1] = (char) ((year % 1000) / 100 + zeroBase);
timestampChars[2] = (char) ((year % 100) / 10 + zeroBase);
timestampChars[3] = (char) (year % 10 + +zeroBase);
timestampChars[4] = '-';
timestampChars[5] = (char) (month / 10 + zeroBase);
timestampChars[6] = (char) (month % 10 + zeroBase);
timestampChars[7] = '-';
timestampChars[8] = (char) (day / 10 + zeroBase);
timestampChars[9] = (char) (day % 10 + zeroBase);
timestampChars[10] = '-';
timestampChars[11] = (char) (hour / 10 + zeroBase);
timestampChars[12] = (char) (hour % 10 + zeroBase);
timestampChars[13] = '.';
timestampChars[14] = (char) (minute / 10 + zeroBase);
timestampChars[15] = (char) (minute % 10 + zeroBase);
timestampChars[16] = '.';
timestampChars[17] = (char) (second / 10 + zeroBase);
timestampChars[18] = (char) (second % 10 + zeroBase);
timestampChars[19] = '.';
timestampChars[20] = (char) (microsecond / 100000 + zeroBase);
timestampChars[21] = (char) ((microsecond % 100000) / 10000 + zeroBase);
timestampChars[22] = (char) ((microsecond % 10000) / 1000 + zeroBase);
timestampChars[23] = (char) ((microsecond % 1000) / 100 + zeroBase);
timestampChars[24] = (char) ((microsecond % 100) / 10 + zeroBase);
timestampChars[25] = (char) (microsecond % 10 + zeroBase);
// Network server expects to read the timestamp parameter value bytes with
// UTF-8 encoding. Reference - DERBY-1127
// see DRDAConnThread.readAndSetParams
byte[] timestampBytes = (new String(timestampChars)).getBytes(Typdef.UTF8ENCODING);
System.arraycopy(timestampBytes, 0, buffer, offset, DateTime.timestampRepresentationLength);
return DateTime.timestampRepresentationLength;
}
// *********************************************************
// ******* CROSS output converters (byte[] -> class) *******
// *********************************************************
/**
* Expected character representation is DERBY string representation of a date
* which is in JIS format: <code> yyyy-mm-dd </code>
*
* @param buffer
* @param offset
* @param recyclableCal
* @param encoding encoding of buffer
* @return Timestamp translated from buffer with specified encoding
* @throws UnsupportedEncodingException
*/
public static final java.sql.Timestamp dateBytesToTimestamp(byte[] buffer,
int offset,
Calendar recyclableCal,
String encoding)
throws UnsupportedEncodingException {
int year, month, day;
String date = new String(buffer, offset, DateTime.dateRepresentationLength,
encoding);
int yearIndx, monthIndx, dayIndx;
yearIndx = 0;
monthIndx = 5;
dayIndx = 8;
int zeroBase = ((int) '0');
// Character arithmetic is used rather than
// the less efficient Integer.parseInt (date.substring()).
year =
1000 * (((int) date.charAt(yearIndx)) - zeroBase) +
100 * (((int) date.charAt(yearIndx + 1)) - zeroBase) +
10 * (((int) date.charAt(yearIndx + 2)) - zeroBase) +
(((int) date.charAt(yearIndx + 3)) - zeroBase);
month =
10 * (((int) date.charAt(monthIndx)) - zeroBase) +
(((int) date.charAt(monthIndx + 1)) - zeroBase) -
1;
day =
10 * (((int) date.charAt(dayIndx)) - zeroBase) +
(((int) date.charAt(dayIndx + 1)) - zeroBase);
Calendar cal = getCleanCalendar(recyclableCal);
cal.set(year, month, day, 0, 0, 0);
java.sql.Timestamp ts = new java.sql.Timestamp(cal.getTimeInMillis());
ts.setNanos(0);
return ts;
}
/**
* Expected character representation is DERBY string representation of time
* which is in the format: <code> hh.mm.ss </code>
*
* @param buffer
* @param offset
* @param recyclableCal
* @param encoding encoding of buffer
* @return Timestamp translated from buffer with specified encoding
* @throws UnsupportedEncodingException
*
*/
public static final java.sql.Timestamp timeBytesToTimestamp(byte[] buffer,
int offset,
Calendar recyclableCal,
String encoding)
throws UnsupportedEncodingException {
int hour, minute, second;
String time = new String(buffer, offset,
DateTime.timeRepresentationLength, encoding);
int zeroBase = ((int) '0');
// compute hour.
hour =
10 * (((int) time.charAt(0)) - zeroBase) +
(((int) time.charAt(1)) - zeroBase);
// compute minute.
minute =
10 * (((int) time.charAt(3)) - zeroBase) +
(((int) time.charAt(4)) - zeroBase);
// compute second JIS format: hh:mm:ss.
second =
10 * (((int) time.charAt(6)) - zeroBase) +
(((int) time.charAt(7)) - zeroBase);
// The SQL standard specifies that the date portion of the returned
// timestamp should be set to the current date. See DERBY-889 for
// more details.
Calendar cal = getCleanCalendar(recyclableCal);
cal.setTime(new java.util.Date());
// Now override the time fields with the values we parsed.
cal.set(Calendar.HOUR_OF_DAY, hour);
cal.set(Calendar.MINUTE, minute);
cal.set(Calendar.SECOND, second);
// Derby's resolution for the TIME type is only seconds.
cal.set(Calendar.MILLISECOND, 0);
return new java.sql.Timestamp(cal.getTimeInMillis());
}
/**
* Expected character representation is DERBY string representation of a timestamp:
* <code>yyyy-mm-dd-hh.mm.ss.ffffff</code>.
*
* @param buffer
* @param offset
* @param recyclableCal
* @param encoding encoding of buffer
* @return Date translated from buffer with specified encoding
* @throws UnsupportedEncodingException
*/
public static final java.sql.Date timestampBytesToDate(byte[] buffer,
int offset,
Calendar recyclableCal,
String encoding)
throws UnsupportedEncodingException
{
int year, month, day;
String timestamp = new String(buffer, offset,
DateTime.timestampRepresentationLength, encoding);
int zeroBase = ((int) '0');
year =
1000 * (((int) timestamp.charAt(0)) - zeroBase) +
100 * (((int) timestamp.charAt(1)) - zeroBase) +
10 * (((int) timestamp.charAt(2)) - zeroBase) +
(((int) timestamp.charAt(3)) - zeroBase);
month =
10 * (((int) timestamp.charAt(5)) - zeroBase) +
(((int) timestamp.charAt(6)) - zeroBase) -
1;
day =
10 * (((int) timestamp.charAt(8)) - zeroBase) +
(((int) timestamp.charAt(9)) - zeroBase);
Calendar cal = getCleanCalendar(recyclableCal);
cal.set(year, month, day);
return new java.sql.Date(cal.getTimeInMillis());
}
/**
* Expected character representation is DERBY string representation of a timestamp:
* <code>yyyy-mm-dd-hh.mm.ss.ffffff</code>.
*
* @param buffer
* @param offset
* @param recyclableCal
* @param encoding encoding of buffer
* @return Time translated from buffer with specified Encoding
* @throws UnsupportedEncodingException
*/
public static final java.sql.Time timestampBytesToTime(byte[] buffer,
int offset,
Calendar recyclableCal,
String encoding)
throws UnsupportedEncodingException
{
/* When getting a java.sql.Time object from a TIMESTAMP value we
* need to preserve the milliseconds from the timestamp.
*
* Note: a Derby SQL TIME value has by definition resolution of only
* a second so its millisecond value is always zero. However,
* java.sql.Time is not a direct mapping to the SQL Type; rather, it's
* a JDBC type, and the JDBC java.sql.Time class has a precision of
* milliseconds. So when converting from a SQL TIMESTAMP we should
* retain the millisecond precision. DERBY-1816.
*
* In order to accomplish this we parse *all* fields of the timestamp
* into a Calendar object, then create the java.sql.Time object from
* that Calendar. This allows us to preserve the sub-second resolution
* that is parsed from the timestamp.
*/
String timestamp = new String(buffer, offset,
DateTime.timestampRepresentationLength, encoding);
Calendar cal = getCleanCalendar(recyclableCal);
/* Note that "parseTimestampString()" returns microseconds but we
* ignore micros because java.sql.Time only has millisecond precision.
*/
parseTimestampString(timestamp, cal);
/* Java API indicates that the date components of a Time value
* must be set to January 1, 1970. So override those values now.
*/
cal.set(1970, Calendar.JANUARY, 1);
return new java.sql.Time(cal.getTimeInMillis());
}
/**
* Return a clean (i.e. all values cleared out) Calendar object
* that can be used for creating Time, Timestamp, and Date objects.
* If the received Calendar object is non-null, then just clear
* that and return it.
*
* @param recyclableCal Calendar object to use if non-null.
*/
private static Calendar getCleanCalendar(Calendar recyclableCal)
{
if (recyclableCal != null)
{
recyclableCal.clear();
return recyclableCal;
}
/* Default GregorianCalendar initializes to current time.
* Make sure we clear that out before returning, per the
* contract of this method.
*/
Calendar result = new java.util.GregorianCalendar();
result.clear();
return result;
}
// *********************************************************
// ******* CROSS input converters (class -> byte[]) ********
// *********************************************************
/**
* java.sql.Timestamp is converted to character representation that is in JDBC date escape
* format: <code>yyyy-mm-dd</code>, which is the same as JIS date format in DERBY string representation of a date.
* and then converted to bytes using UTF8 encoding.
* @param buffer
* @param offset write into the buffer from this offset
* @param timestamp timestamp value
* @return DateTime.dateRepresentationLength. This is the fixed length
* in bytes, that is taken to represent the timestamp value as a date.
* @throws SqlException
* @throws UnsupportedEncodingException
*/
public static final int timestampToDateBytes(byte[] buffer,
int offset,
java.sql.Timestamp timestamp)
throws SqlException,UnsupportedEncodingException {
int year = timestamp.getYear() + 1900;
if (year > 9999) {
throw new SqlException(null,
new ClientMessageId(SQLState.YEAR_EXCEEDS_MAXIMUM),
new Integer(year), "9999");
}
int month = timestamp.getMonth() + 1;
int day = timestamp.getDate();
char[] dateChars = new char[DateTime.dateRepresentationLength];
int zeroBase = (int) '0';
dateChars[0] = (char) (year / 1000 + zeroBase);
dateChars[1] = (char) ((year % 1000) / 100 + zeroBase);
dateChars[2] = (char) ((year % 100) / 10 + zeroBase);
dateChars[3] = (char) (year % 10 + +zeroBase);
dateChars[4] = '-';
dateChars[5] = (char) (month / 10 + zeroBase);
dateChars[6] = (char) (month % 10 + zeroBase);
dateChars[7] = '-';
dateChars[8] = (char) (day / 10 + zeroBase);
dateChars[9] = (char) (day % 10 + zeroBase);
// Network server expects to read the date parameter value bytes with
// UTF-8 encoding. Reference - DERBY-1127
// see DRDAConnThread.readAndSetParams
byte[] dateBytes = (new String(dateChars)).getBytes(Typdef.UTF8ENCODING);
System.arraycopy(dateBytes, 0, buffer, offset, DateTime.dateRepresentationLength);
return DateTime.dateRepresentationLength;
}
/**
* java.sql.Timestamp is converted to character representation in JDBC time escape format:
* <code>hh:mm:ss</code>, which is the same as
* JIS time format in DERBY string representation of a time. The char representation is
* then converted to bytes using UTF8 encoding and written out into the buffer
* @param buffer
* @param offset write into the buffer from this offset
* @param timestamp timestamp value
* @return DateTime.timeRepresentationLength. This is the fixed length
* in bytes taken to represent the timestamp value as Time.
* @throws UnsupportedEncodingException
*/
public static final int timestampToTimeBytes(byte[] buffer,
int offset,
java.sql.Timestamp timestamp)
throws UnsupportedEncodingException {
int hour = timestamp.getHours();
int minute = timestamp.getMinutes();
int second = timestamp.getSeconds();
char[] timeChars = new char[DateTime.timeRepresentationLength];
int zeroBase = (int) '0';
timeChars[0] = (char) (hour / 10 + zeroBase);
timeChars[1] = (char) (hour % 10 + +zeroBase);
timeChars[2] = ':';
timeChars[3] = (char) (minute / 10 + zeroBase);
timeChars[4] = (char) (minute % 10 + zeroBase);
timeChars[5] = ':';
timeChars[6] = (char) (second / 10 + zeroBase);
timeChars[7] = (char) (second % 10 + zeroBase);
// Network server expects to read the time parameter value bytes with
// UTF-8 encoding. Reference - DERBY-1127
// see DRDAConnThread.readAndSetParams
byte[] timeBytes = (new String(timeChars)).getBytes(Typdef.UTF8ENCODING);
System.arraycopy(timeBytes, 0, buffer, offset, DateTime.timeRepresentationLength);
return DateTime.timeRepresentationLength;
}
/**
* java.sql.Date is converted to character representation that is in DERBY string
* representation of a timestamp:<code>yyyy-mm-dd-hh.mm.ss.ffffff</code> and then
* converted to bytes using UTF8 encoding and written out to the buffer
* @param buffer
* @param offset offset in buffer to start writing to
* @param date date value
* @return DateTime.timestampRepresentationLength. This is the fixed length
* in bytes, taken to represent the timestamp value.
* @throws SqlException
* @throws UnsupportedEncodingException
*/
public static final int dateToTimestampBytes(byte[] buffer,
int offset,
java.sql.Date date)
throws SqlException, UnsupportedEncodingException {
int year = date.getYear() + 1900;
if (year > 9999) {
throw new SqlException(null,
new ClientMessageId(SQLState.YEAR_EXCEEDS_MAXIMUM),
new Integer(year), "9999");
}
int month = date.getMonth() + 1;
int day = date.getDate();
char[] timestampChars = new char[DateTime.timestampRepresentationLength];
int zeroBase = (int) '0';
timestampChars[0] = (char) (year / 1000 + zeroBase);
timestampChars[1] = (char) ((year % 1000) / 100 + zeroBase);
timestampChars[2] = (char) ((year % 100) / 10 + zeroBase);
timestampChars[3] = (char) (year % 10 + +zeroBase);
timestampChars[4] = '-';
timestampChars[5] = (char) (month / 10 + zeroBase);
timestampChars[6] = (char) (month % 10 + zeroBase);
timestampChars[7] = '-';
timestampChars[8] = (char) (day / 10 + zeroBase);
timestampChars[9] = (char) (day % 10 + zeroBase);
timestampChars[10] = '-';
timestampChars[11] = '0';
timestampChars[12] = '0';
timestampChars[13] = '.';
timestampChars[14] = '0';
timestampChars[15] = '0';
timestampChars[16] = '.';
timestampChars[17] = '0';
timestampChars[18] = '0';
timestampChars[19] = '.';
timestampChars[20] = '0';
timestampChars[21] = '0';
timestampChars[22] = '0';
timestampChars[23] = '0';
timestampChars[24] = '0';
timestampChars[25] = '0';
// Network server expects to read the timestamp parameter value bytes with
// UTF-8 encoding. Reference - DERBY-1127
// see DRDAConnThread.readAndSetParams
byte[] timestampBytes = (new String(timestampChars)).getBytes(Typdef.UTF8ENCODING);
System.arraycopy(timestampBytes, 0, buffer, offset, DateTime.timestampRepresentationLength);
return DateTime.timestampRepresentationLength;
}
/**
* java.sql.Time is converted to a character representation that is in DERBY string representation of a timestamp:
* <code>yyyy-mm-dd-hh.mm.ss.ffffff</code> and converted to bytes using UTF8 encoding
* @param buffer
* @param offset offset in buffer to start writing to
* @param time time value
* @return DateTime.timestampRepresentationLength which is the fixed length
* taken up by the conversion of time to timestamp in bytes
* @throws UnsupportedEncodingException
*/
public static final int timeToTimestampBytes(byte[] buffer,
int offset,
java.sql.Time time)
throws UnsupportedEncodingException {
int hour = time.getHours();
int minute = time.getMinutes();
int second = time.getSeconds();
char[] timestampChars = new char[DateTime.timestampRepresentationLength];
int zeroBase = (int) '0';
timestampChars[0] = '1';
timestampChars[1] = '9';
timestampChars[2] = '0';
timestampChars[3] = '0';
timestampChars[4] = '-';
timestampChars[5] = '0';
timestampChars[6] = '1';
timestampChars[7] = '-';
timestampChars[8] = '0';
timestampChars[9] = '1';
timestampChars[10] = '-';
timestampChars[11] = (char) (hour / 10 + zeroBase);
timestampChars[12] = (char) (hour % 10 + zeroBase);
timestampChars[13] = '.';
timestampChars[14] = (char) (minute / 10 + zeroBase);
timestampChars[15] = (char) (minute % 10 + zeroBase);
timestampChars[16] = '.';
timestampChars[17] = (char) (second / 10 + zeroBase);
timestampChars[18] = (char) (second % 10 + zeroBase);
timestampChars[19] = '.';
timestampChars[20] = '0';
timestampChars[21] = '0';
timestampChars[22] = '0';
timestampChars[23] = '0';
timestampChars[24] = '0';
timestampChars[25] = '0';
// Network server expects to read the timestamp parameter value bytes with
// UTF-8 encoding. Reference - DERBY-1127
// see DRDAConnThread.readAndSetParams for TIMESTAMP
byte[] timestampBytes = (new String(timestampChars)).getBytes(Typdef.UTF8ENCODING);
System.arraycopy(timestampBytes, 0, buffer, offset, DateTime.timestampRepresentationLength);
return DateTime.timestampRepresentationLength;
}
}
The table below shows all metrics for DateTime.java.
| Metric | Value | Description | |
|---|---|---|---|
| BLOCKS | 24.00 | Number of blocks | |
| BLOCK_COMMENT | 52.00 | Number of block comment lines | |
| COMMENTS | 290.00 | Comment lines | |
| COMMENT_DENSITY | 0.68 | Comment density | |
| COMPARISONS | 15.00 | Number of comparison operators | |
| CYCLOMATIC | 23.00 | Cyclomatic complexity | |
| DECL_COMMENTS | 23.00 | Comments in declarations | |
| DOC_COMMENT | 188.00 | Number of javadoc comment lines | |
| ELOC | 425.00 | Effective lines of code | |
| EXEC_COMMENTS | 25.00 | Comments in executable code | |
| EXITS | 21.00 | Procedure exits | |
| FUNCTIONS | 17.00 | Number of function declarations | |
| HALSTEAD_DIFFICULTY | 99.65 | Halstead difficulty | |
| HALSTEAD_EFFORT | 0.00 | Halstead effort | |
| INTERFACE_COMPLEXITY | 82.00 | Interface complexity | |
| JAVA0001 | 0.00 | JAVA0001 Package name does not contain only lower case letters | |
| JAVA0002 | 0.00 | JAVA0002 Package name does not begin with a top level domain name or country code | |
| JAVA0003 | 0.00 | JAVA0003 Minimize use of on-demand (.*) imports | |
| JAVA0004 | 0.00 | JAVA0004 Unnecessary import from java.lang | |
| JAVA0005 | 1.00 | JAVA0005 Imports not in specified order | |
| JAVA0006 | 0.00 | JAVA0006 Empty finally block | |
| JAVA0007 | 0.00 | JAVA0007 Should not declare public field | |
| JAVA0008 | 0.00 | JAVA0008 Empty catch block | |
| JAVA0009 | 0.00 | JAVA0009 Protected member in final class | |
| JAVA0010 | 0.00 | JAVA0010 Non-instantiable class does not contain a non-private static member | |
| JAVA0011 | 0.00 | JAVA0011 Abstract class does not contain an abstract method | |
| JAVA0012 | 0.00 | JAVA0012 Non-constructor method with same name as declaring class | |
| JAVA0013 | 0.00 | JAVA0013 Non-blank final field is not static | |
| JAVA0014 | 0.00 | JAVA0014 Class with only static members has non-private constructor | |
| JAVA0015 | 0.00 | JAVA0015 Package class contains public nested type | |
| JAVA0016 | 0.00 | JAVA0016 Abstract class contains public constructor | |
| JAVA0017 | 0.00 | JAVA0017 Class name does not have required form | |
| JAVA0018 | 0.00 | JAVA0018 Method name does not have required form | |
| JAVA0019 | 0.00 | JAVA0019 Interface name does not have required form | |
| JAVA0020 | 0.00 | JAVA0020 Field name does not have required form | |
| JAVA0021 | 0.00 | JAVA0021 Interface method name does not have required form | |
| JAVA0022 | 0.00 | JAVA0022 Static final field name does not have required form | |
| JAVA0023 | 0.00 | JAVA0023 Empty finalize method | |
| JAVA0024 | 0.00 | JAVA0024 Empty class | |
| JAVA0025 | 0.00 | JAVA0025 Method override is empty | |
| JAVA0026 | 0.00 | JAVA0026 Finalize method with parameters | |
| JAVA0029 | 0.00 | JAVA0029 Private method not used | |
| JAVA0030 | 0.00 | JAVA0030 Private field not used | |
| JAVA0031 | 0.00 | JAVA0031 Case statement not properly closed | |
| JAVA0032 | 0.00 | JAVA0032 Switch statement missing default | |
| JAVA0033 | 0.00 | JAVA0033 default: not last case in switch statement | |
| JAVA0034 | 0.00 | JAVA0034 Missing braces in if statement | |
| JAVA0035 | 0.00 | JAVA0035 Missing braces in for statement | |
| JAVA0036 | 0.00 | JAVA0036 Missing braces in while statement | |
| JAVA0038 | 0.00 | JAVA0038 Non-case label in switch statement | |
| JAVA0039 | 0.00 | JAVA0039 Break statement with label | |
| JAVA0040 | 0.00 | JAVA0040 Switch statement contains N cases (maximum: M) | |
| JAVA0041 | 0.00 | JAVA0041 Nested synchronized block | |
| JAVA0042 | 0.00 | JAVA0042 Empty synchronized statement | |
| JAVA0043 | 0.00 | JAVA0043 Inner class does not use outer class | |
| JAVA0044 | 0.00 | JAVA0044 Serializable class with no instance variables | |
| JAVA0045 | 0.00 | JAVA0045 Serializable class with only transient fields | |
| JAVA0046 | 0.00 | JAVA0046 Name of class not derived from Exception ends with 'Exception' | |
| JAVA0047 | 0.00 | JAVA0047 Serializable class derives from invalid base class | |
| JAVA0048 | 0.00 | JAVA0048 Name of class derived from Exception does not end with 'Exception' | |
| JAVA0049 | 0.00 | JAVA0049 Nested block at depth N (maximum: M) | |
| JAVA0050 | 0.00 | JAVA0050 Class derives from java.lang.Error | |
| JAVA0051 | 0.00 | JAVA0051 Class derives from java.lang.RuntimeException | |
| JAVA0052 | 0.00 | JAVA0052 Class derives from java.lang.Throwable | |
| JAVA0053 | 0.00 | JAVA0053 Unused label | |
| JAVA0054 | 0.00 | JAVA0054 Inheritance depth N exceeds maximum M | |
| JAVA0055 | 0.00 | JAVA0055 Class should be interface | |
| JAVA0056 | 0.00 | JAVA0056 Unnecessary abstract modifier for interface or annotation | |
| JAVA0057 | 0.00 | JAVA0057 Unnecessary default constructor | |
| JAVA0058 | 0.00 | JAVA0058 Constructor calls super() | |
| JAVA0059 | 0.00 | JAVA0059 Method override only calls super() | |
| JAVA0061 | 0.00 | JAVA0061 Inaccessible member in anonymous class | |
| JAVA0062 | 0.00 | JAVA0062 Public class missing public member or protected constructor | |
| JAVA0063 | 0.00 | JAVA0063 Identifier name should not contain '$' | |
| JAVA0064 | 0.00 | JAVA0064 N variations of identifier name (maximum: M) | |
| JAVA0065 | 0.00 | JAVA0065 Unnecessary final modifier for method in final class | |
| JAVA0066 | 0.00 | JAVA0066 Unnecessary modifier for interface nested type | |
| JAVA0067 | 0.00 | JAVA0067 Array descriptor on identifier name | |
| JAVA0068 | 0.00 | JAVA0068 Modifiers not declared in recommended order | |
| JAVA0071 | 0.00 | JAVA0071 Strings compared with == | |
| JAVA0073 | 0.00 | JAVA0073 Integer division in floating-point context | |
| JAVA0074 | 0.00 | JAVA0074 Use of Object.notify() | |
| JAVA0075 | 0.00 | JAVA0075 Method parameter hides field | |
| JAVA0076 | 217.00 | JAVA0076 Use of magic number | |
| JAVA0077 | 0.00 | JAVA0077 Private field not used in declaring class | |
| JAVA0078 | 0.00 | JAVA0078 Floating point values compared with == | |
| JAVA0079 | 0.00 | JAVA0079 Use of instance to reference static member | |
| JAVA0080 | 1.00 | JAVA0080 Import declaration not used | |
| JAVA0081 | 0.00 | JAVA0081 Boolean literal in comparison | |
| JAVA0082 | 0.00 | JAVA0082 Unnecessary widening cast | |
| JAVA0083 | 0.00 | JAVA0083 Unnecessary instanceof test | |
| JAVA0084 | 0.00 | JAVA0084 Should use compound assignment operator | |
| JAVA0085 | 0.00 | JAVA0085 Use of sun.* class | |
| JAVA0087 | 0.00 | JAVA0087 Use of Thread.sleep() | |
| JAVA0089 | 0.00 | JAVA0089 Use of restricted package | |
| JAVA0092 | 0.00 | JAVA0092 Use of restricted type | |
| JAVA0093 | 0.00 | JAVA0093 Redundant assignment | |
| JAVA0094 | 0.00 | JAVA0094 Field hides a superclass field | |
| JAVA0095 | 0.00 | JAVA0095 Uninitialized private field | |
| JAVA0096 | 0.00 | JAVA0096 Field in nested class hides outer field | |
| JAVA0098 | 0.00 | JAVA0098 Minimize use of implicit field initializers | |
| JAVA0100 | 0.00 | JAVA0100 Class contains N non-final fields (maximum: M) | |
| JAVA0101 | 0.00 | JAVA0101 Unnecessary modifier for field in interface | |
| JAVA0102 | 0.00 | JAVA0102 Last statement in finalize() not super.finalize() | |
| JAVA0103 | 0.00 | JAVA0103 Explicit call to finalize() | |
| JAVA0104 | 0.00 | JAVA0104 finalize() only calls super.finalize() | |
| JAVA0105 | 0.00 | JAVA0105 Duplicate import declaration | |
| JAVA0106 | 0.00 | JAVA0106 Unnecessary import from current package | |
| JAVA0108 | 0.00 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| JAVA0109 | 0.00 | JAVA0109 Incorrect javadoc: no parameter 'parameter' | |
| JAVA0110 | 1.00 | JAVA0110 Incorrect javadoc: no @return tag | |
| JAVA0111 | 0.00 | JAVA0111 Incorrect javadoc: @return tag for void method | |
| JAVA0112 | 0.00 | JAVA0112 Incorrect javadoc: no exception 'exception' in throws | |
| JAVA0113 | 1.00 | JAVA0113 Incorrect javadoc: no @author tag | |
| JAVA0114 | 1.00 | JAVA0114 Incorrect javadoc: no @version tag | |
| JAVA0115 | 0.00 | JAVA0115 Incorrect javadoc: no @throws or @exception tag for 'exception' | |
| JAVA0116 | 0.00 | JAVA0116 Missing javadoc: field 'field' | |
| JAVA0117 | 0.00 | JAVA0117 Missing javadoc: method 'method' | |
| JAVA0118 | 0.00 | JAVA0118 Missing javadoc: type 'type' | |
| JAVA0119 | 0.00 | JAVA0119 Control variable changed within body of for loop | |
| JAVA0123 | 0.00 | JAVA0123 Use all three components of for loop | |
| JAVA0125 | 0.00 | JAVA0125 Continue statement with label | |
| JAVA0126 | 0.00 | JAVA0126 Method declares unchecked exception in throws | |
| JAVA0128 | 0.00 | JAVA0128 Public constructor in non-public class | |
| JAVA0130 | 0.00 | JAVA0130 Non-static method does not use instance fields | |
| JAVA0131 | 0.00 | JAVA0131 Compatible method does not override base | |
| JAVA0132 | 0.00 | JAVA0132 Method overload with compatible signature | |
| JAVA0133 | 0.00 | JAVA0133 Non-synchronized method overrides synchronized method | |
| JAVA0135 | 0.00 | JAVA0135 Only one of Object.equals and Object.hashCode defined: missing 'method' | |
| JAVA0136 | 0.00 | JAVA0136 N methods defined in class (maximum: M) | |
| JAVA0137 | 0.00 | JAVA0137 Non-abstract class missing constructor | |
| JAVA0138 | 0.00 | JAVA0138 N parameters defined for method (maximum: M) | |
| JAVA0139 | 0.00 | JAVA0139 Definition of main other than public static void main(java.lang.String[]) | |
| JAVA0141 | 0.00 | JAVA0141 Unnecessary modifier for method in interface | |
| JAVA0143 | 0.00 | JAVA0143 Synchronized method | |
| JAVA0144 | 0.00 | JAVA0144 Line exceeds maximum M characters | |
| JAVA0145 | 0.00 | JAVA0145 Tab character used in source file | |
| JAVA0150 | 0.00 | JAVA0150 java.lang.Error (or subclass) thrown | |
| JAVA0153 | 0.00 | JAVA0153 Inefficient conversion of integer to string | |
| JAVA0159 | 0.00 | JAVA0159 Inefficient conversion of string to integer | |
| JAVA0160 | 0.00 | JAVA0160 Method does not throw specified exception | |
| JAVA0161 | 0.00 | JAVA0161 Conditional wait() not in loop | |
| JAVA0163 | 0.00 | JAVA0163 Empty statement | |
| JAVA0165 | 0.00 | JAVA0165 Conflicting return statement in finally block | |
| JAVA0166 | 0.00 | JAVA0166 Generic exception caught | |
| JAVA0167 | 0.00 | JAVA0167 ThreadDeath not rethrown | |
| JAVA0169 | 0.00 | JAVA0169 Unnecessary catch block: exception 'exception' | |
| JAVA0170 | 0.00 | JAVA0170 Caught exception not derived from java.lang.Exception | |
| JAVA0171 | 7.00 | JAVA0171 Unused local variable | |
| JAVA0173 | 0.00 | JAVA0173 Unused method parameter | |
| JAVA0174 | 0.00 | JAVA0174 Assigned local variable never used | |
| JAVA0175 | 0.00 | JAVA0175 Successive assignment to variable | |
| JAVA0176 | 0.00 | JAVA0176 Local variable name does not have required form | |
| JAVA0177 | 28.00 | JAVA0177 Variable declaration missing initializer | |
| JAVA0179 | 0.00 | JAVA0179 Local variable hides visible field | |
| JAVA0233 | 0.00 | JAVA0233 Definition of serialVersionUID other than 'private static final long serialVersionUID' | |
| JAVA0234 | 0.00 | JAVA0234 Class is Serializable but does not define serialVersionUID | |
| JAVA0235 | 0.00 | JAVA0235 Class defines serialVersionUID but does not implement Serializable | |
| JAVA0236 | 0.00 | JAVA0236 Attempt to clone an object which does not implement Cloneable | |
| JAVA0237 | 0.00 | JAVA0237 Class implements Cloneable but does not have public clone method | |
| JAVA0238 | 0.00 | JAVA0238 Clone method does not call super.clone() | |
| JAVA0239 | 0.00 | JAVA0239 Class declares 'readObject' or 'writeObject' but does not implement Serializable | |
| JAVA0240 | 0.00 | JAVA0240 Serializable class which declares readObject or writeObject but not both | |
| JAVA0241 | 0.00 | JAVA0241 'readObject' or 'writeObject' should be declared private in Serializable class | |
| JAVA0242 | 0.00 | JAVA0242 Transient field in non-Serializable class | |
| JAVA0243 | 0.00 | JAVA0243 'readResolve' or 'writeReplace' should be declared private or protected | |
| JAVA0244 | 0.00 | JAVA0244 Field or method name in subclass differs only by case from inherited field or method | |
| JAVA0245 | 0.00 | JAVA0245 JUnit TestCase with non-trivial constructor | |
| JAVA0246 | 0.00 | JAVA0246 JUnit assertXXX statement missing message parameter | |
| JAVA0247 | 0.00 | JAVA0247 JUnit 'setUp()' and 'tearDown()' should call super method | |
| JAVA0248 | 0.00 | JAVA0248 JUnit method 'setUp' or 'tearDown' with incorrect signature | |
| JAVA0249 | 0.00 | JAVA0249 JUnit TestCase 'suite()' should be declared static | |
| JAVA0250 | 0.00 | JAVA0250 JUnit TestCase declares testXXX method with incorrect signature | |
| JAVA0251 | 0.00 | JAVA0251 Use '%n' for line breaks in printf/format for platform independence | |
| JAVA0252 | 0.00 | JAVA0252 'enum' is a Java 1.5 reserved word | |
| JAVA0253 | 0.00 | JAVA0253 Not all enum constants consumed in switch statement | |
| JAVA0254 | 0.00 | JAVA0254 Use enhanced for loop construct instead of Iterator | |
| JAVA0255 | 0.00 | JAVA0255 Result of method invocation not used | |
| JAVA0256 | 0.00 | JAVA0256 Assignment of external collection/array to field | |
| JAVA0257 | 0.00 | JAVA0257 Use of 'Constant Interface' anti-pattern | |
| JAVA0258 | 0.00 | JAVA0258 Implement Iterable for foreach compatibility | |
| JAVA0259 | 0.00 | JAVA0259 Return of collection/array field | |
| JAVA0260 | 0.00 | JAVA0260 Use 'enum' instead of Enumerated Type pattern | |
| JAVA0261 | 0.00 | JAVA0261 Use specialized Enum collection types | |
| JAVA0262 | 0.00 | JAVA0262 Use of char in integer context | |
| JAVA0263 | 0.00 | JAVA0263 Long literal ends with 'l' instead of 'L' | |
| JAVA0264 | 0.00 | JAVA0264 Integer math in long context - check for overflow | |
| JAVA0265 | 0.00 | JAVA0265 Use of Throwable.printStackTrace() | |
| JAVA0266 | 0.00 | JAVA0266 Use of System.out | |
| JAVA0267 | 0.00 | JAVA0267 Use of System.err | |
| JAVA0269 | 0.00 | JAVA0269 Contents of StringBuffer never used | |
| JAVA0270 | 0.00 | JAVA0270 Use Java 5.0 enhanced for loop construct to iterate over all elements in an array | |
| JAVA0271 | 0.00 | JAVA0271 Minimize use of on-demand (.*) static imports | |
| JAVA0272 | 0.00 | JAVA0272 Thread.run() called | |
| JAVA0273 | 0.00 | JAVA0273 Non-final derivative of Thread calls start() in constructor | |
| JAVA0274 | 0.00 | JAVA0274 Serializable class has a synchronized readObject() | |
| JAVA0275 | 0.00 | JAVA0275 Serializable class has a synchronized writeObject() and no other synchronized methods | |
| JAVA0276 | 0.00 | JAVA0276 Unnecessary use of String constructor | |
| JAVA0277 | 0.00 | JAVA0277 Iterator.next() implementation does not throw NoSuchElementException | |
| JAVA0278 | 0.00 | JAVA0278 Unnecessary use of Boolean constructor | |
| JAVA0279 | 0.00 | JAVA0279 Serialization method readObject or readObjectNoData calls an overridable method | |
| JAVA0280 | 0.00 | JAVA0280 IllegalMonitorStateException caught | |
| JAVA0281 | 0.00 | JAVA0281 Iterator.next() not called in loop | |
| JAVA0282 | 0.00 | JAVA0282 Call to Iterator.next() in loop which does not test Iterator.hasNext() | |
| JAVA0283 | 0.00 | JAVA0283 Control variable not updated in loop body | |
| JAVA0284 | 0.00 | JAVA0284 Explicit garbage collection | |
| JAVA0285 | 0.00 | JAVA0285 Dereference of potentially null variable | |
| JAVA0286 | 0.00 | JAVA0286 Dereference of null variable | |
| JAVA0287 | 0.00 | JAVA0287 Unnecessary null check | |
| JAVA0288 | 0.00 | JAVA0288 Inconsistent null check | |
| LINES | 833.00 | Number of lines in the source file | |
| LINE_COMMENT | 50.00 | Number of line comments | |
| LOC | 455.00 | Lines of code | |
| LOGICAL_LINES | 274.00 | Number of statements | |
| LOOPS | 0.00 | Number of loops | |
| NEST_DEPTH | 2.00 | Maximum nesting depth | |
| OPERANDS | 1526.00 | Number of operands | |
| OPERATORS | 2976.00 | Number of operators | |
| PARAMS | 52.00 | Number of formal parameter declarations | |
| PROGRAM_LENGTH | 4502.00 | Halstead program length | |
| PROGRAM_VOCAB | 303.00 | Halstead program vocabulary | |
| PROGRAM_VOLUME | 0.00 | Halstead program volume | |
| RETURNS | 30.00 | Number of return points from functions | |
| SIZE | 36229.00 | Size of the file in bytes | |
| UNIQUE_OPERANDS | 268.00 | Number of unique operands | |
| UNIQUE_OPERATORS | 35.00 | Number of unique operators | |
| WHITESPACE | 88.00 | Number of whitespace lines | |