/*
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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 legal-notices/CDDLv1_0.txt
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* or http://forgerock.org/license/CDDLv1.0.html.
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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 legal-notices/CDDLv1_0.txt.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* 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.forgerock.opendj.ldap.schema;
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import static org.forgerock.opendj.ldap.CoreMessages.WARN_ATTR_SYNTAX_UUID_EXPECTED_DASH;
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import static org.forgerock.opendj.ldap.CoreMessages.WARN_ATTR_SYNTAX_UUID_EXPECTED_HEX;
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import static org.forgerock.opendj.ldap.CoreMessages.WARN_ATTR_SYNTAX_UUID_INVALID_LENGTH;
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import static org.forgerock.opendj.ldap.schema.SchemaConstants.SYNTAX_UUID_NAME;
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import org.forgerock.i18n.LocalizableMessageBuilder;
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import org.forgerock.opendj.ldap.ByteSequence;
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/**
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* This class implements the UUID syntax, which is defined in RFC 4530. Equality
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* and ordering matching will be allowed by default.
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*/
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final class UUIDSyntaxImpl extends AbstractSyntaxImpl {
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public String getName() {
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return SYNTAX_UUID_NAME;
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}
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public boolean isHumanReadable() {
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return true;
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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 appended
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* 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 use
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* with this syntax, or <CODE>false</CODE> if not.
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*/
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public boolean valueIsAcceptable(final Schema schema, final ByteSequence value,
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final LocalizableMessageBuilder invalidReason) {
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// We will only accept values that look like valid UUIDs. This means
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// that all values must be in the form
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// HHHHHHHH-HHHH-HHHH-HHHH-HHHHHHHHHHHH, where "H" represents a
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// hexadecimal digit. First, make sure that the value is exactly 36
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// bytes long.
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final String valueString = value.toString();
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if (valueString.length() != 36) {
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invalidReason.append(WARN_ATTR_SYNTAX_UUID_INVALID_LENGTH.get(valueString, valueString
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.length()));
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return false;
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}
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// Next, iterate through each character. Make sure that the 9th,
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// 14th, 19th, and 24th characters are dashes and the rest are hex
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// digits.
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for (int i = 0; i < 36; i++) {
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switch (i) {
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case 8:
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case 13:
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case 18:
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case 23:
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if (valueString.charAt(i) != '-') {
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invalidReason.append(WARN_ATTR_SYNTAX_UUID_EXPECTED_DASH.get(valueString, i,
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String.valueOf(valueString.charAt(i))));
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return false;
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}
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break;
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default:
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switch (valueString.charAt(i)) {
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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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case 'a':
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case 'b':
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case 'c':
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case 'd':
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case 'e':
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case 'f':
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case 'A':
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case 'B':
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case 'C':
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case 'D':
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case 'E':
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case 'F':
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break;
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default:
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invalidReason.append(WARN_ATTR_SYNTAX_UUID_EXPECTED_HEX.get(valueString, i,
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String.valueOf(valueString.charAt(i))));
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return false;
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}
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}
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}
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// If we've gotten here, then the value is acceptable.
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return true;
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}
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}
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