/*
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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 2009-2010 Sun Microsystems, Inc.
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* Portions copyright 2012-2013 ForgeRock AS.
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*/
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package org.forgerock.opendj.ldap;
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import java.util.Collection;
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import java.util.Iterator;
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import com.forgerock.opendj.util.Iterables;
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import com.forgerock.opendj.util.Predicate;
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import com.forgerock.opendj.util.Validator;
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/**
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* This class provides a skeletal implementation of the {@code Entry} interface,
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* to minimize the effort required to implement this interface.
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*/
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public abstract class AbstractEntry implements Entry {
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// Predicate used for findAttributes.
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private static final Predicate<Attribute, AttributeDescription> FIND_ATTRIBUTES_PREDICATE =
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new Predicate<Attribute, AttributeDescription>() {
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@Override
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public boolean matches(final Attribute value, final AttributeDescription p) {
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return value.getAttributeDescription().isSubTypeOf(p);
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}
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};
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/**
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* Sole constructor.
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*/
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protected AbstractEntry() {
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// No implementation required.
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}
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@Override
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public boolean addAttribute(final Attribute attribute) {
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return addAttribute(attribute, null);
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}
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@Override
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public Entry addAttribute(final String attributeDescription, final Object... values) {
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addAttribute(new LinkedAttribute(attributeDescription, values), null);
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return this;
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}
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@Override
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public boolean containsAttribute(final Attribute attribute,
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final Collection<? super ByteString> missingValues) {
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final Attribute a = getAttribute(attribute.getAttributeDescription());
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if (a == null) {
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if (missingValues != null) {
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missingValues.addAll(attribute);
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}
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return false;
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} else {
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boolean result = true;
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for (final ByteString value : attribute) {
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if (!a.contains(value)) {
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if (missingValues != null) {
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missingValues.add(value);
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}
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result = false;
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}
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}
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return result;
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}
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}
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@Override
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public boolean containsAttribute(final String attributeDescription, final Object... values) {
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return containsAttribute(new LinkedAttribute(attributeDescription, values), null);
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}
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@Override
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public boolean equals(final Object object) {
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if (this == object) {
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return true;
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} else if (object instanceof Entry) {
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final Entry other = (Entry) object;
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if (!this.getName().equals(other.getName())) {
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return false;
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}
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// Distinguished name is the same, compare attributes.
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if (this.getAttributeCount() != other.getAttributeCount()) {
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return false;
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}
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for (final Attribute attribute : this.getAllAttributes()) {
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final Attribute otherAttribute =
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other.getAttribute(attribute.getAttributeDescription());
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if (!attribute.equals(otherAttribute)) {
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return false;
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}
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}
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return true;
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} else {
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return false;
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}
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}
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@Override
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public Iterable<Attribute> getAllAttributes(final AttributeDescription attributeDescription) {
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Validator.ensureNotNull(attributeDescription);
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return Iterables.filteredIterable(getAllAttributes(), FIND_ATTRIBUTES_PREDICATE,
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attributeDescription);
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}
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@Override
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public Iterable<Attribute> getAllAttributes(final String attributeDescription) {
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return getAllAttributes(AttributeDescription.valueOf(attributeDescription));
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}
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@Override
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public Attribute getAttribute(final AttributeDescription attributeDescription) {
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for (final Attribute attribute : getAllAttributes()) {
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final AttributeDescription ad = attribute.getAttributeDescription();
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if (isAssignable(attributeDescription, ad)) {
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return attribute;
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}
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}
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return null;
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}
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@Override
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public Attribute getAttribute(final String attributeDescription) {
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return getAttribute(AttributeDescription.valueOf(attributeDescription));
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}
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@Override
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public int hashCode() {
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int hashCode = this.getName().hashCode();
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for (final Attribute attribute : this.getAllAttributes()) {
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hashCode += attribute.hashCode();
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}
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return hashCode;
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}
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@Override
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public AttributeParser parseAttribute(final AttributeDescription attributeDescription) {
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return AttributeParser.parseAttribute(getAttribute(attributeDescription));
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}
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@Override
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public AttributeParser parseAttribute(final String attributeDescription) {
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return AttributeParser.parseAttribute(getAttribute(attributeDescription));
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}
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@Override
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public boolean removeAttribute(final Attribute attribute,
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final Collection<? super ByteString> missingValues) {
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final Iterator<Attribute> i = getAllAttributes().iterator();
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final AttributeDescription attributeDescription = attribute.getAttributeDescription();
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while (i.hasNext()) {
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final Attribute oldAttribute = i.next();
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if (isAssignable(attributeDescription, oldAttribute.getAttributeDescription())) {
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if (attribute.isEmpty()) {
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i.remove();
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return true;
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} else {
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final boolean modified = oldAttribute.removeAll(attribute, missingValues);
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if (oldAttribute.isEmpty()) {
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i.remove();
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return true;
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}
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return modified;
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}
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}
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}
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// Not found.
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if (missingValues != null) {
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missingValues.addAll(attribute);
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}
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return false;
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}
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@Override
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public boolean removeAttribute(final AttributeDescription attributeDescription) {
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return removeAttribute(Attributes.emptyAttribute(attributeDescription), null);
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}
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@Override
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public Entry removeAttribute(final String attributeDescription, final Object... values) {
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removeAttribute(new LinkedAttribute(attributeDescription, values), null);
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return this;
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}
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@Override
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public boolean replaceAttribute(final Attribute attribute) {
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if (attribute.isEmpty()) {
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return removeAttribute(attribute.getAttributeDescription());
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} else {
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/*
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* For consistency with addAttribute and removeAttribute, preserve
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* the existing attribute if it already exists.
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*/
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final Attribute oldAttribute = getAttribute(attribute.getAttributeDescription());
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if (oldAttribute != null) {
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oldAttribute.clear();
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oldAttribute.addAll(attribute);
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} else {
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addAttribute(attribute, null);
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}
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return true;
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}
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}
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@Override
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public Entry replaceAttribute(final String attributeDescription, final Object... values) {
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replaceAttribute(new LinkedAttribute(attributeDescription, values));
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return this;
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}
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@Override
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public Entry setName(final String dn) {
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return setName(DN.valueOf(dn));
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}
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@Override
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public String toString() {
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final StringBuilder builder = new StringBuilder();
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builder.append('"');
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builder.append(this.getName());
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builder.append("\":{");
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boolean firstValue = true;
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for (final Attribute attribute : this.getAllAttributes()) {
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if (!firstValue) {
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builder.append(',');
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}
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builder.append(attribute);
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firstValue = false;
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}
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builder.append('}');
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return builder.toString();
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}
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private boolean isAssignable(final AttributeDescription from, final AttributeDescription to) {
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if (!from.isPlaceHolder()) {
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return from.equals(to);
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} else {
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return from.matches(to);
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}
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}
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}
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