/*
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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.schema.SchemaConstants.EMR_CASE_IGNORE_OID;
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import static org.forgerock.opendj.ldap.schema.SchemaConstants.OMR_CASE_IGNORE_OID;
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import static org.forgerock.opendj.ldap.schema.SchemaConstants.SMR_CASE_IGNORE_OID;
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import static org.forgerock.opendj.ldap.schema.SchemaConstants.SYNTAX_SUBSTRING_ASSERTION_NAME;
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import org.forgerock.i18n.LocalizableMessageBuilder;
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import org.forgerock.opendj.ldap.ByteSequence;
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import org.forgerock.opendj.ldap.CoreMessages;
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/**
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* This class defines the substring assertion attribute syntax, which contains
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* one or more substring components, as used in a substring search filter. For
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* the purposes of matching, it will be treated like a Directory String syntax
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* except that approximate matching will not be allowed.
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*/
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final class SubstringAssertionSyntaxImpl extends AbstractSyntaxImpl {
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@Override
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public String getEqualityMatchingRule() {
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return EMR_CASE_IGNORE_OID;
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}
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public String getName() {
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return SYNTAX_SUBSTRING_ASSERTION_NAME;
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}
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@Override
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public String getOrderingMatchingRule() {
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return OMR_CASE_IGNORE_OID;
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}
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@Override
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public String getSubstringMatchingRule() {
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return SMR_CASE_IGNORE_OID;
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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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// Get the string representation of the value and check its length.
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// A zero-length value is acceptable. A one-length value is
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// acceptable as long as it is not an asterisk. For all other
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// lengths, just ensure that there are no consecutive wildcards.
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final String valueString = value.toString();
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final int valueLength = valueString.length();
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if (valueLength == 0) {
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return true;
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} else if (valueLength == 1) {
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if (valueString.charAt(0) == '*') {
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invalidReason.append(CoreMessages.WARN_ATTR_SYNTAX_SUBSTRING_ONLY_WILDCARD.get());
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return false;
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} else {
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return true;
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}
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} else {
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for (int i = 1; i < valueLength; i++) {
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if (valueString.charAt(i) == '*' && valueString.charAt(i - 1) == '*') {
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invalidReason
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.append(CoreMessages.WARN_ATTR_SYNTAX_SUBSTRING_CONSECUTIVE_WILDCARDS
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.get(valueString, i));
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return false;
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}
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}
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return true;
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}
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}
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}
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