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Common utilities and classes used throughout the MDfromHTML project
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/**
* (c) Copyright 2020 IBM Corporation
* 1 New Orchard Road,
* Armonk, New York, 10504-1722
* United States
* +1 914 499 1900
* support: Nathaniel Mills [email protected]
*
* Licensed 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 com.mdfromhtml.core;
import java.io.File;
import java.io.Serializable;
import java.math.BigInteger;
import java.net.URI;
import java.nio.charset.Charset;
import java.rmi.dgc.VMID;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
import java.text.DecimalFormat;
import java.util.Date;
import java.util.Random;
/**
*
*/
public class MDfromHTMLConstants implements Serializable {
/**
* The default encryption key used for properties files. This can be
* overridden by setting the ENV_MDfromHTML_KEY in the environment.
*/
static public final char[] MDfromHTML_DEFAULT_PROPERTY_FILE_KEY = "MDfromHTML!"
.toCharArray();
static public final String ERRANT_JSON_STRING = "JSON Generation Error: []";
static final public String IPC_DEFAULT_TOPIC = "MDfromHTML";
static final public String MDfromHTML_HOME_DIRECTORY_NAME = "MDfromHTML";
static public final String MDfromHTML_DIR_PROPERTIES = "properties"
+ File.separator;
static public final String MDfromHTML_SVCS_PropertiesFileName = "MDfromHTML.properties";
static public final String MDfromHTML_SVCS_HOST_NAME_PROP = "hostname";
static public final String MDfromHTML_SVCS_PORT_PROP = "port";
static public final String MDfromHTML_SVCS_PROTOCOL_PROP = "protocol";
static public final String MDfromHTML_SVCS_SERVLET_NAME_PROP = "servletname";
static public final String MDfromHTML_SVCS_VERSION_PROP = "version";
static final public String MDfromHTML_SVCS_LOGGER_DIRECTORY = "logger.directory";
static final public String MDfromHTML_SVCS_LOGGER_STEM_NAME = "logger.stem.name";
static final public String MDfromHTML_SVCS_LOGGER_MAX_SIZE = "logger.max.size";
static final public String MDfromHTML_SVCS_LOGGER_MAX_NUMBER = "logger.max.number";
static final public String MDfromHTML_SVCS_LOGGER_FILE_LEVEL = "logger.file.level";
static final public String MDfromHTML_SVCS_LOGGER_CONSOLE_LEVEL = "logger.console.level";
static public final String APPLICATION_NAME = "MDfromHTML";
static public final String ENV_MDfromHTML_HOME = "MDfromHTML_HOME";
static public final String MDfromHTML_IPC_PropertiesFileName = "MDfromHTMLIPC.properties";
static public final String MDfromHTML_DELIMITER = "~";
static public final int DAY_MS = 86400000;
static public final String MDfromHTML_TRACE_FILE_NAME = "MDfromHTMLTrace.log";
static public final String MDfromHTML_TRACE_SPEC = "*=all=disabled";
static public final String MDfromHTML_DOMAIN = "MDfromHTML.com";
static public final String MDfromHTML_EMAIL_DOMAIN = "@"
+ MDfromHTML_DOMAIN;
static public final String INTERNAL_ActorEmail = "MDfromHTML_internal@"
+ MDfromHTML_DOMAIN;
/**
* Equal to new Double(0), this is used to initialize values, typically used
* for optionally present values.
*/
static public final Double EMPTY_Double = new Double(0);
/**
* Equal to new Float(0f), this is used to initialize values, typically used
* for optionally present values.
*/
static public final Float EMPTY_Float = new Float(0f);
/**
* Equal to new Integer(0), this is used to initialize values, typically
* used for optionally present values.
*/
static public final Integer EMPTY_Integer = new Integer(0);
/**
* Equal to new Long(0L), this is used to initialize values, typically used
* for optionally present values.
*/
static public final Long EMPTY_Long = new Long(0L);
/**
* Equal to new Short((short)0), this is used to initialize values,
* typically used for optionally present values.
*/
static public final Short EMPTY_Short = new Short((short) 0);
/**
* Equal to "", this is used to initialize values, typically used for
* optionally present values (e.g., descriptions, notes, long names).
*/
static public final String EMPTY_String = "";
static public final DecimalFormat FMT = new DecimalFormat("#0.000");
static public final byte[] HEX_BYTES = new byte[] {
48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 65, 66, 67, 68, 69, 70
};
static public final String HEX_CHARS = "0123456789ABCDEF";
static public final int HOUR_MS = 3600000;
static public final String IPC_MAX_MESSAGE_SIZE = "IPC_MAX_MESSAGE_SIZE";
static public final int MIN_MS = 60000;
/**
* If this class is initialized in a different JVM is started at the same
* millisecond, its s_r will generate the same sequence of random numbers.
*/
static public Random SEED_RANDOM = new Random();
static public SecureRandom SEED_SECURE_RANDOM = null;
private static final long serialVersionUID = -439955604090390701L;
/**
* Equal to 9223372036854775806L (Long.MAX_VALUE - 1), this is used to
* identify and/or initialize a BigInteger value that has yet to receive a
* valid value. Typically used for comparisons to glean if the value has
* been set properly.
*/
static public final BigInteger UNDEFINED_BigInteger = new BigInteger(
new Long(Long.MAX_VALUE - 1).toString());
/**
* Equal to null, this is used to identify and/or initialize a Boolean value
* that has yet to receive a valid value. Typically used for comparisons to
* glean if the value has been set properly. There is no equivalent value
* for boolean as it can only have two states (true or false).
*/
static public final Boolean UNDEFINED_Boolean = null;
/**
* Equal to 126 (Byte.MAX_VALUE - 1), this is used to identify and/or
* initialize a byte value that has yet to receive a valid value. Typically
* used for comparisons to glean if the value has been set properly.
*/
static public final byte UNDEFINED_byte = (byte) (Byte.MAX_VALUE - 1);
/**
* Equal to 126, this is used to identify and/or initialize a Byte value
* that has yet to receive a valid value. Typically used for comparisons to
* glean if the value has been set properly.
*/
static public final Byte UNDEFINED_Byte = new Byte(UNDEFINED_byte);
/**
* Equal to 65534 (Character.MAX_VALUE-1), this is used to identify and/or
* initialize a char value that has yet to receive a valid value. Typically
* used for comparisons to glean if the value has been set properly.
*/
static public final char UNDEFINED_char = (char) (Character.MAX_VALUE - 1);
/**
* Equal to Character.MAX_VALUE-1 (65534), this is used to identify and/or
* initialize a Character value that has yet to receive a valid value.
* Typically used for comparisons to glean if the value has been set
* properly.
*/
static public final Character UNDEFINED_Character = new Character(
UNDEFINED_char);
static public Class UNDEFINED_Class = null;
/**
* Equal to one millisecond after the epoch date (midnight 1/1/1970
* 00:00:00.001), this is used to identify and/or initialize a Date value
* that has yet to receive a valid value. Typically used for comparisons to
* glean if the value has been set properly.
*/
static public final Date UNDEFINED_Date = new Date(1);
/**
* Equal to Double.longBitsToDouble(0x7feffffffffffffeL), this is used to
* identify and/or initialize a double value that has yet to receive a valid
* value. Typically used for comparisons to glean if the value has been set
* properly.
*/
static public final double UNDEFINED_double = 1.7976931348623155E308;
/**
* Equal to Double.longBitsToDouble(0x7feffffffffffffeL), this is used to
* identify and/or initialize a Double value that has yet to receive a valid
* value. Typically used for comparisons to glean if the value has been set
* properly.
*/
static public final Double UNDEFINED_Double = new Double(UNDEFINED_double);
/**
* Equal to Float.intBitsToFloat(0x7f7ffffe), this is used to identify
* and/or initialize a float value that has yet to receive a valid value.
* Typically used for comparisons to glean if the value has been set
* properly.
*/
static public final float UNDEFINED_float = Float
.intBitsToFloat(0x7f7ffffe); // (Float.NaN-1);
/**
* Equal to Float.intBitsToFloat(0x7f7ffffe), this is used to identify
* and/or initialize a Float value that has yet to receive a valid value.
* Typically used for comparisons to glean if the value has been set
* properly.
*/
static public final Float UNDEFINED_Float = new Float(UNDEFINED_float);
static public final String UNDEFINED_ID = "??????????????????????";
/**
* Equal to 2147483646 (Integer.MAX_VALUE - 1), this is used to identify
* and/or initialize an int value that has yet to receive a valid value.
* Typically used for comparisons to glean if the value has been set
* properly.
*/
static public final int UNDEFINED_int = Integer.MAX_VALUE - 1;
/**
* Equal to 2147483646, this is used to identify and/or initialize a Integer
* value that has yet to receive a valid value. Typically used for
* comparisons to glean if the value has been set properly.
*/
static public final Integer UNDEFINED_Integer = new Integer(UNDEFINED_int);
/**
* Equal to 9223372036854775806L (Long.MAX_VALUE - 1), this is used to
* identify and/or initialize a long value that has yet to receive a valid
* value. Typically used for comparisons to glean if the value has been set
* properly.
*
* Note: altered for Javascript compatibility Number.MAX_SAFE_INTEGER-1
*/
static public final long UNDEFINED_long = 9007199254740990L;
/**
* Equal to 9223372036854775806, this is used to identify and/or initialize
* a Long value that has yet to receive a valid value. Typically used for
* comparisons to glean if the value has been set properly.
*/
static public final Long UNDEFINED_Long = new Long(UNDEFINED_long);
/**
* Equal to -1, this is used to identify and/or initialize an int value that
* is intended to be nonnegative but that has yet to receive a valid (i.e.,
* >= 0) value. Typically used for comparisons to glean if the value has
* been set properly. Also useful for initializing loop-control variables.
*/
static public final int UNDEFINED_nonnegative_int = -1;
/**
* Equal to -1, this is used to identify and/or initialize an Integer value
* that is intended to be nonnegative but that has yet to receive a valid
* (i.e., >= 0) value. Typically used for comparisons to glean if the value
* has been set properly. Also useful for initializing loop-control
* variables.
*/
static public final Integer UNDEFINED_Nonnegative_Integer = new Integer(-1);
/**
* Equal to -1L, this is used to identify and/or initialize a long value
* that is intended to be nonnegative but that has yet to receive a valid
* (i.e., >= 0) value. Typically used for comparisons to glean if the value
* has been set properly. Also useful for initializing loop-control
* variables.
*/
static public final long UNDEFINED_nonnegative_long = -1L;
/**
* Equal to -1, this is used to identify and/or initialize a Long value that
* is intended to be nonnegative but that has yet to receive a valid (i.e.,
* >= 0) value. Typically used for comparisons to glean if the value has
* been set properly. Also useful for initializing loop-control variables.
*/
static public final Long UNDEFINED_Nonnegative_Long = new Long(-1);
/**
* Equal to -1L, this is used to identify and/or initialize a short value
* that is intended to be nonnegative but that has yet to receive a valid
* (i.e., >= 0) value. Typically used for comparisons to glean if the value
* has been set properly. Also useful for initializing loop-control
* variables.
*/
static public final short UNDEFINED_nonnegative_short = -1;
/**
* Equal to -1, this is used to identify and/or initialize a Short value
* that is intended to be nonnegative but that has yet to receive a valid
* (i.e., >= 0) value. Typically used for comparisons to glean if the value
* has been set properly. Also useful for initializing loop-control
* variables.
*/
static public final Short UNDEFINED_Nonnegative_Short = new Short(
(short) -1);
/**
* Equal to 0, this is used to identify and/or initialize an int value that
* is intended to be positive but that has yet to receive a valid (i.e., >
* 0) value. Typically used for comparisons to glean if the value has been
* set properly. Also useful for initializing loop-control variables.
*/
static public final int UNDEFINED_positive_int = -1;
/**
* Equal to 0, this is used to identify and/or initialize an Integer value
* that is intended to be positive but that has yet to receive a valid
* (i.e., > 0) value. Typically used for comparisons to glean if the value
* has been set properly. Also useful for initializing loop-control
* variables.
*/
static public final Integer UNDEFINED_Positive_Integer = new Integer(-1);
/**
* Equal to 0, this is used to identify and/or initialize a long value that
* is intended to be positive but that has yet to receive a valid (i.e., >
* 0) value. Typically used for comparisons to glean if the value has been
* set properly. Also useful for initializing loop-control variables.
*/
static public final long UNDEFINED_positive_long = -1L;
/**
* Equal to 0, this is used to identify and/or initialize a Long value that
* is intended to be positive but that has yet to receive a valid (i.e., >
* 0) value. Typically used for comparisons to glean if the value has been
* set properly. Also useful for initializing loop-control variables.
*/
static public final Long UNDEFINED_Positive_Long = new Long(-1);
/**
* Equal to -1, this is used to identify and/or initialize a short value
* that is intended to be positive but that has yet to receive a valid
* (i.e., > 0) value. Typically used for comparisons to glean if the value
* has been set properly. Also useful for initializing loop-control
* variables.
*/
static public final short UNDEFINED_positive_short = -1;
/**
* Equal to 0, this is used to identify and/or initialize a Short value that
* is intended to be positive but that has yet to receive a valid (i.e., >
* 0) value. Typically used for comparisons to glean if the value has been
* set properly. Also useful for initializing loop-control variables.
*/
static public final Short UNDEFINED_Positive_Short = new Short((short) -1);
/**
* Equal to 32766 (Short.MAX_VALUE - 1), this is used to identify and/or
* initialize a short value that has yet to receive a valid value. Typically
* used for comparisons to glean if the value has been set properly.
*/
static public final short UNDEFINED_short = (short) (Short.MAX_VALUE - 1);
/**
* Equal to 32766, this is used to identify and/or initialize a short value
* that has yet to receive a valid value. Typically used for comparisons to
* glean if the value has been set properly.
*/
static public final Short UNDEFINED_Short = new Short(UNDEFINED_short);
/**
* Equal to a question mark, this is used to identify and/or initialize a
* String that has yet to receive a valid value. Typically used for
* comparisons to glean if the value has been set properly.
*/
static public final String UNDEFINED_String = "?";
/**
* Equal to "//", this is used to identify and/or initialize a URI that has
* yet to receive a valid value. Typically used for comparisons to glean if
* the value has been set properly.
*/
static public URI UNDEFINED_URI = null;
static final public Charset UTF8_CHARSET = Charset.forName("UTF-8");
static {
try {
SEED_SECURE_RANDOM = SecureRandom.getInstance("SHA1PRNG");
SEED_SECURE_RANDOM.setSeed(new VMID().toString().getBytes());
} catch (NoSuchAlgorithmException nsae) {
System.out.println(
"Unable to retrieve algorithm SHA1PRNG for unique id generation.");
}
}
static public final String MDfromHTML_DIR_DATA = "data" + File.separator;
static public final String MDfromHTML_SVCS_SCHEMA_FILENAME = "MDfromHTML_RESTServicesSchema.json";
}
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