/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE
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* or https://OpenDS.dev.java.net/OpenDS.LICENSE.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE. If applicable,
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* add the following below this CDDL HEADER, with the fields enclosed
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* by brackets "[]" replaced with your own identifying information:
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* Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*
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*
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* Copyright 2009 Sun Microsystems, Inc.
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*/
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package org.opends.sdk.schema;
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import static org.opends.messages.SchemaMessages.*;
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import static org.opends.sdk.schema.SchemaConstants.*;
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import java.text.SimpleDateFormat;
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import java.util.Date;
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import java.util.TimeZone;
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import org.opends.messages.Message;
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import org.opends.messages.MessageBuilder;
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import org.opends.sdk.DecodeException;
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import org.opends.sdk.util.ByteSequence;
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import org.opends.sdk.util.StaticUtils;
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/**
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* This class implements the UTC time attribute syntax. This is very
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* similar to the generalized time syntax (and actually has been
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* deprecated in favor of that), but requires that the minute be
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* provided and does not allow for sub-second times. All matching will
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* be performed using the generalized time matching rules, and equality,
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* ordering, and substring matching will be allowed.
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*/
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final class UTCTimeSyntaxImpl extends AbstractSyntaxImpl
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{
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/**
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* The lock that will be used to provide threadsafe access to the date
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* formatter.
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*/
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private final static Object dateFormatLock;
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/**
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* The date formatter that will be used to convert dates into UTC time
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* values. Note that all interaction with it must be synchronized.
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*/
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private final static SimpleDateFormat dateFormat;
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/*
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* Create the date formatter that will be used to construct and parse
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* normalized UTC time values.
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*/
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static
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{
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dateFormat = new SimpleDateFormat(DATE_FORMAT_UTC_TIME);
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dateFormat.setLenient(false);
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dateFormat.setTimeZone(TimeZone.getTimeZone(TIME_ZONE_UTC));
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dateFormatLock = new Object();
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}
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/**
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* Retrieves an string containing a UTC time representation of the
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* provided date.
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*
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* @param d
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* The date for which to retrieve the UTC time value.
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* @return The attribute value created from the date.
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*/
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static String createUTCTimeValue(Date d)
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{
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synchronized (dateFormatLock)
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{
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return dateFormat.format(d);
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}
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}
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/**
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* Decodes the provided normalized value as a UTC time value and
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* retrieves a Java <CODE>Date</CODE> object containing its
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* representation.
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*
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* @param valueString
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* The normalized UTC time value to decode to a Java
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* <CODE>Date</CODE>.
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* @return The Java <CODE>Date</CODE> created from the provided UTC
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* time value.
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* @throws DecodeException
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* If the provided value cannot be parsed as a valid UTC
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* time string.
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*/
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static Date decodeUTCTimeValue(String valueString)
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throws DecodeException
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{
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try
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{
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synchronized (dateFormatLock)
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{
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return dateFormat.parse(valueString);
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}
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}
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catch (final Exception e)
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{
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final Message message =
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ERR_ATTR_SYNTAX_UTC_TIME_CANNOT_PARSE.get(valueString, String
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.valueOf(e));
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final DecodeException de = DecodeException.error(message, e);
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StaticUtils.DEBUG_LOG.throwing("UTCTimeSyntax",
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"decodeUTCTimeValue", de);
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throw de;
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}
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}
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@Override
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public String getEqualityMatchingRule()
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{
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return EMR_GENERALIZED_TIME_OID;
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}
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public String getName()
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{
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return SYNTAX_UTC_TIME_NAME;
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}
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@Override
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public String getOrderingMatchingRule()
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{
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return OMR_GENERALIZED_TIME_OID;
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}
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@Override
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public String getSubstringMatchingRule()
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{
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return SMR_CASE_IGNORE_OID;
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}
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public boolean isHumanReadable()
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{
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return false;
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}
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/**
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* Indicates whether the provided value is acceptable for use in an
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* attribute with this syntax. If it is not, then the reason may be
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* appended to the provided buffer.
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*
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* @param schema
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* The schema in which this syntax is defined.
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* @param value
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* The value for which to make the determination.
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* @param invalidReason
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* The buffer to which the invalid reason should be appended.
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* @return <CODE>true</CODE> if the provided value is acceptable for
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* use with this syntax, or <CODE>false</CODE> if not.
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*/
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public boolean valueIsAcceptable(Schema schema, ByteSequence value,
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MessageBuilder invalidReason)
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{
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// Get the value as a string and verify that it is at least long
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// enough for "YYYYMMDDhhmmZ", which is the shortest allowed value.
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final String valueString = value.toString().toUpperCase();
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final int length = valueString.length();
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if (length < 11)
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{
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final Message message =
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ERR_ATTR_SYNTAX_UTC_TIME_TOO_SHORT.get(valueString);
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invalidReason.append(message);
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return false;
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}
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// The first two characters are the year, and they must be numeric
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// digits between 0 and 9.
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for (int i = 0; i < 2; i++)
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{
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switch (valueString.charAt(i))
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{
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case '0':
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case '1':
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case '2':
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case '3':
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case '4':
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case '5':
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case '6':
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case '7':
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case '8':
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case '9':
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// These are all fine.
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break;
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default:
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final Message message =
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ERR_ATTR_SYNTAX_UTC_TIME_INVALID_YEAR.get(valueString,
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String.valueOf(valueString.charAt(i)));
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invalidReason.append(message);
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return false;
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}
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}
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// The next two characters are the month, and they must form the
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// string representation of an integer between 01 and 12.
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char m1 = valueString.charAt(2);
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final char m2 = valueString.charAt(3);
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switch (m1)
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{
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case '0':
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// m2 must be a digit between 1 and 9.
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switch (m2)
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{
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case '1':
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case '2':
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case '3':
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case '4':
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case '5':
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case '6':
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case '7':
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case '8':
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case '9':
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// These are all fine.
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break;
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default:
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final Message message =
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ERR_ATTR_SYNTAX_UTC_TIME_INVALID_MONTH.get(valueString,
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valueString.substring(2, 4));
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invalidReason.append(message);
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return false;
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}
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break;
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case '1':
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// m2 must be a digit between 0 and 2.
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switch (m2)
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{
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case '0':
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case '1':
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case '2':
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// These are all fine.
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break;
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default:
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final Message message =
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ERR_ATTR_SYNTAX_UTC_TIME_INVALID_MONTH.get(valueString,
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valueString.substring(2, 4));
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invalidReason.append(message);
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return false;
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}
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break;
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default:
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final Message message =
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ERR_ATTR_SYNTAX_UTC_TIME_INVALID_MONTH.get(valueString,
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valueString.substring(2, 4));
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invalidReason.append(message);
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return false;
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}
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// The next two characters should be the day of the month, and they
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// must form the string representation of an integer between 01 and
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// 31. This doesn't do any validation against the year or month, so
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// it will allow dates like April 31, or February 29 in a non-leap
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// year, but we'll let those slide.
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final char d1 = valueString.charAt(4);
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final char d2 = valueString.charAt(5);
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switch (d1)
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{
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case '0':
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// d2 must be a digit between 1 and 9.
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switch (d2)
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{
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case '1':
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case '2':
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case '3':
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case '4':
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case '5':
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case '6':
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case '7':
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case '8':
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case '9':
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// These are all fine.
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break;
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default:
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final Message message =
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ERR_ATTR_SYNTAX_UTC_TIME_INVALID_DAY.get(valueString,
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valueString.substring(4, 6));
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invalidReason.append(message);
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return false;
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}
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break;
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case '1':
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// Treated the same as '2'.
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case '2':
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// d2 must be a digit between 0 and 9.
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switch (d2)
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{
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case '0':
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case '1':
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case '2':
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case '3':
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case '4':
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case '5':
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case '6':
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case '7':
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case '8':
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case '9':
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// These are all fine.
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break;
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default:
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final Message message =
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ERR_ATTR_SYNTAX_UTC_TIME_INVALID_DAY.get(valueString,
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valueString.substring(4, 6));
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invalidReason.append(message);
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return false;
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}
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break;
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case '3':
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// d2 must be either 0 or 1.
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switch (d2)
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{
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case '0':
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case '1':
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// These are all fine.
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break;
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default:
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final Message message =
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ERR_ATTR_SYNTAX_UTC_TIME_INVALID_DAY.get(valueString,
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valueString.substring(4, 6));
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invalidReason.append(message);
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return false;
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}
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break;
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default:
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final Message message =
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ERR_ATTR_SYNTAX_UTC_TIME_INVALID_DAY.get(valueString,
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valueString.substring(4, 6));
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invalidReason.append(message);
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return false;
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}
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// The next two characters must be the hour, and they must form the
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// string representation of an integer between 00 and 23.
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final char h1 = valueString.charAt(6);
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final char h2 = valueString.charAt(7);
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switch (h1)
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{
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case '0':
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// This is treated the same as '1'.
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case '1':
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switch (h2)
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{
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case '0':
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case '1':
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case '2':
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case '3':
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case '4':
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case '5':
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case '6':
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case '7':
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case '8':
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case '9':
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// These are all fine.
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break;
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default:
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final Message message =
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ERR_ATTR_SYNTAX_UTC_TIME_INVALID_HOUR.get(valueString,
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valueString.substring(6, 8));
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invalidReason.append(message);
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return false;
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}
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break;
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case '2':
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// This must be a digit between 0 and 3.
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switch (h2)
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{
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case '0':
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case '1':
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case '2':
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case '3':
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// These are all fine.
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break;
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default:
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final Message message =
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ERR_ATTR_SYNTAX_UTC_TIME_INVALID_HOUR.get(valueString,
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valueString.substring(6, 8));
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invalidReason.append(message);
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return false;
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}
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break;
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default:
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final Message message =
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ERR_ATTR_SYNTAX_UTC_TIME_INVALID_HOUR.get(valueString,
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valueString.substring(6, 8));
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invalidReason.append(message);
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return false;
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}
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// Next, there should be two digits comprising an integer between 00
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// and 59 for the minute.
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m1 = valueString.charAt(8);
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switch (m1)
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{
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case '0':
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case '1':
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case '2':
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case '3':
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case '4':
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case '5':
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// There must be at least two more characters, and the next one
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// must be a digit between 0 and 9.
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if (length < 11)
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{
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final Message message =
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ERR_ATTR_SYNTAX_UTC_TIME_INVALID_CHAR.get(valueString,
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String.valueOf(m1), 8);
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invalidReason.append(message);
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return false;
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}
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switch (valueString.charAt(9))
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{
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case '0':
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case '1':
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case '2':
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case '3':
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case '4':
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case '5':
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case '6':
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case '7':
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case '8':
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case '9':
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// These are all fine.
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break;
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default:
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final Message message =
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ERR_ATTR_SYNTAX_UTC_TIME_INVALID_MINUTE.get(valueString,
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valueString.substring(8, 10));
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invalidReason.append(message);
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return false;
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}
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break;
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default:
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final Message message =
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ERR_ATTR_SYNTAX_UTC_TIME_INVALID_CHAR.get(valueString, String
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.valueOf(m1), 8);
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invalidReason.append(message);
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return false;
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}
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// Next, there should be either two digits comprising an integer
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// between 00 and 60 (for the second, including a possible leap
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// second), a letter 'Z' (for the UTC specifier), or a plus or minus
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// sign followed by four digits (for the UTC offset).
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final char s1 = valueString.charAt(10);
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switch (s1)
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{
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case '0':
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case '1':
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case '2':
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case '3':
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case '4':
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case '5':
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// There must be at least two more characters, and the next one
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// must be a digit between 0 and 9.
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if (length < 13)
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{
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final Message message =
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ERR_ATTR_SYNTAX_UTC_TIME_INVALID_CHAR.get(valueString,
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String.valueOf(s1), 10);
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invalidReason.append(message);
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return false;
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}
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switch (valueString.charAt(11))
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{
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case '0':
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case '1':
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case '2':
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case '3':
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case '4':
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case '5':
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case '6':
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case '7':
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case '8':
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case '9':
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// These are all fine.
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break;
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default:
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final Message message =
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ERR_ATTR_SYNTAX_UTC_TIME_INVALID_SECOND.get(valueString,
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valueString.substring(10, 12));
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invalidReason.append(message);
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return false;
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}
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break;
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case '6':
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// There must be at least two more characters and the next one
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// must be a 0.
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if (length < 13)
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{
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final Message message =
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ERR_ATTR_SYNTAX_UTC_TIME_INVALID_CHAR.get(valueString,
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String.valueOf(s1), 10);
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invalidReason.append(message);
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return false;
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}
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if (valueString.charAt(11) != '0')
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{
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final Message message =
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ERR_ATTR_SYNTAX_UTC_TIME_INVALID_SECOND.get(valueString,
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valueString.substring(10, 12));
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invalidReason.append(message);
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return false;
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}
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break;
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case 'Z':
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// This is fine only if we are at the end of the value.
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if (length == 11)
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{
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return true;
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}
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else
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{
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final Message message =
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ERR_ATTR_SYNTAX_UTC_TIME_INVALID_CHAR.get(valueString,
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String.valueOf(s1), 10);
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invalidReason.append(message);
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return false;
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}
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case '+':
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case '-':
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// These are fine only if there are exactly four more digits that
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// specify a valid offset.
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if (length == 15)
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{
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return hasValidOffset(valueString, 11, invalidReason);
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}
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else
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{
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final Message message =
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ERR_ATTR_SYNTAX_UTC_TIME_INVALID_CHAR.get(valueString,
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String.valueOf(s1), 10);
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invalidReason.append(message);
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return false;
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}
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default:
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final Message message =
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ERR_ATTR_SYNTAX_UTC_TIME_INVALID_CHAR.get(valueString, String
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.valueOf(s1), 10);
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invalidReason.append(message);
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return false;
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}
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// The last element should be either a letter 'Z' (for the UTC
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// specifier), or a plus or minus sign followed by four digits (for
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// the UTC offset).
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switch (valueString.charAt(12))
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{
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case 'Z':
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// This is fine only if we are at the end of the value.
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if (length == 13)
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{
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return true;
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}
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else
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{
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final Message message =
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ERR_ATTR_SYNTAX_UTC_TIME_INVALID_CHAR.get(valueString,
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String.valueOf(valueString.charAt(12)), 12);
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invalidReason.append(message);
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return false;
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}
|
|
case '+':
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case '-':
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// These are fine only if there are four or two more digits that
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// specify a valid offset.
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if (length == 17 || length == 15)
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{
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return hasValidOffset(valueString, 13, invalidReason);
|
}
|
else
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{
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final Message message =
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ERR_ATTR_SYNTAX_UTC_TIME_INVALID_CHAR.get(valueString,
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String.valueOf(valueString.charAt(12)), 12);
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invalidReason.append(message);
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return false;
|
}
|
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default:
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final Message message =
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ERR_ATTR_SYNTAX_UTC_TIME_INVALID_CHAR.get(valueString, String
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.valueOf(valueString.charAt(12)), 12);
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invalidReason.append(message);
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return false;
|
}
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}
|
|
|
|
/**
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* Indicates whether the provided string contains a valid set of two
|
* or four UTC offset digits. The provided string must have either two
|
* or four characters from the provided start position to the end of
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* the value.
|
*
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* @param value
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* The whole value, including the offset.
|
* @param startPos
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* The position of the first character that is contained in
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* the offset.
|
* @param invalidReason
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* The buffer to which the invalid reason may be appended if
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* the string does not contain a valid set of UTC offset
|
* digits.
|
* @return <CODE>true</CODE> if the provided offset string is valid,
|
* or <CODE>false</CODE> if it is not.
|
*/
|
private boolean hasValidOffset(String value, int startPos,
|
MessageBuilder invalidReason)
|
{
|
final int offsetLength = value.length() - startPos;
|
if (offsetLength < 2)
|
{
|
final Message message =
|
ERR_ATTR_SYNTAX_UTC_TIME_TOO_SHORT.get(value);
|
invalidReason.append(message);
|
return false;
|
}
|
|
// The first two characters must be an integer between 00 and 23.
|
switch (value.charAt(startPos))
|
{
|
case '0':
|
case '1':
|
switch (value.charAt(startPos + 1))
|
{
|
case '0':
|
case '1':
|
case '2':
|
case '3':
|
case '4':
|
case '5':
|
case '6':
|
case '7':
|
case '8':
|
case '9':
|
// These are all fine.
|
break;
|
default:
|
final Message message =
|
ERR_ATTR_SYNTAX_UTC_TIME_INVALID_OFFSET.get(value, value
|
.substring(startPos, startPos + offsetLength));
|
invalidReason.append(message);
|
return false;
|
}
|
break;
|
case '2':
|
switch (value.charAt(startPos + 1))
|
{
|
case '0':
|
case '1':
|
case '2':
|
case '3':
|
// These are all fine.
|
break;
|
default:
|
final Message message =
|
ERR_ATTR_SYNTAX_UTC_TIME_INVALID_OFFSET.get(value, value
|
.substring(startPos, startPos + offsetLength));
|
invalidReason.append(message);
|
return false;
|
}
|
break;
|
default:
|
final Message message =
|
ERR_ATTR_SYNTAX_UTC_TIME_INVALID_OFFSET.get(value, value
|
.substring(startPos, startPos + offsetLength));
|
invalidReason.append(message);
|
return false;
|
}
|
|
// If there are two more characters, then they must be an integer
|
// between 00 and 59.
|
if (offsetLength == 4)
|
{
|
switch (value.charAt(startPos + 2))
|
{
|
case '0':
|
case '1':
|
case '2':
|
case '3':
|
case '4':
|
case '5':
|
switch (value.charAt(startPos + 3))
|
{
|
case '0':
|
case '1':
|
case '2':
|
case '3':
|
case '4':
|
case '5':
|
case '6':
|
case '7':
|
case '8':
|
case '9':
|
// These are all fine.
|
break;
|
default:
|
final Message message =
|
ERR_ATTR_SYNTAX_UTC_TIME_INVALID_OFFSET.get(value, value
|
.substring(startPos, startPos + offsetLength));
|
invalidReason.append(message);
|
return false;
|
}
|
break;
|
default:
|
final Message message =
|
ERR_ATTR_SYNTAX_UTC_TIME_INVALID_OFFSET.get(value, value
|
.substring(startPos, startPos + offsetLength));
|
invalidReason.append(message);
|
return false;
|
}
|
}
|
|
return true;
|
}
|
}
|
