/*
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* The contents of this file are subject to the terms of the Common Development and
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* Distribution License (the License). You may not use this file except in compliance with the
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* License.
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*
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* You can obtain a copy of the License at legal/CDDLv1.0.txt. See the License for the
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* specific language governing permission and limitations under the License.
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*
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* When distributing Covered Software, include this CDDL Header Notice in each file and include
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* the License file at legal/CDDLv1.0.txt. If applicable, add the following below the CDDL
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* Header, with the fields enclosed by brackets [] replaced by your own identifying
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* information: "Portions Copyright [year] [name of copyright owner]".
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*
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* Copyright 2012-2013 ForgeRock AS.
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*/
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package org.forgerock.opendj.rest2ldap;
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import static org.forgerock.opendj.ldap.Filter.alwaysFalse;
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import static org.forgerock.opendj.ldap.Filter.alwaysTrue;
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import static org.forgerock.opendj.rest2ldap.Utils.i18n;
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import static org.forgerock.opendj.rest2ldap.Utils.isNullOrEmpty;
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import static org.forgerock.opendj.rest2ldap.Utils.toFilter;
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import static org.forgerock.opendj.rest2ldap.Utils.toLowerCase;
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import java.util.Collections;
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import java.util.List;
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import java.util.Set;
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import org.forgerock.json.fluent.JsonPointer;
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import org.forgerock.json.fluent.JsonValue;
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import org.forgerock.json.resource.BadRequestException;
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import org.forgerock.json.resource.PatchOperation;
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import org.forgerock.json.resource.ResultHandler;
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import org.forgerock.opendj.ldap.Attribute;
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import org.forgerock.opendj.ldap.Entry;
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import org.forgerock.opendj.ldap.Filter;
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import org.forgerock.opendj.ldap.Modification;
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/**
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* An attribute mapper which maps a single JSON attribute to a fixed value.
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*/
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final class JSONConstantAttributeMapper extends AttributeMapper {
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private final JsonValue value;
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JSONConstantAttributeMapper(final Object value) {
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this.value = new JsonValue(value);
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}
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@Override
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public String toString() {
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return "constant(" + value.toString() + ")";
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}
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@Override
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void create(final Context c, final JsonPointer path, final JsonValue v,
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final ResultHandler<List<Attribute>> h) {
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if (!isNullOrEmpty(v) && !v.getObject().equals(value.getObject())) {
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h.handleError(new BadRequestException(i18n(
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"The request cannot be processed because it attempts to create "
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+ "the read-only field '%s'", path)));
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} else {
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h.handleResult(Collections.<Attribute> emptyList());
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}
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}
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@Override
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void getLDAPAttributes(final Context c, final JsonPointer path, final JsonPointer subPath,
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final Set<String> ldapAttributes) {
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// Nothing to do.
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}
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@Override
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void getLDAPFilter(final Context c, final JsonPointer path, final JsonPointer subPath,
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final FilterType type, final String operator, final Object valueAssertion,
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final ResultHandler<Filter> h) {
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final Filter filter;
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final JsonValue subValue = value.get(subPath);
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if (subValue == null) {
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filter = alwaysFalse();
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} else if (type == FilterType.PRESENT) {
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filter = alwaysTrue();
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} else if (value.isString() && valueAssertion instanceof String) {
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final String v1 = toLowerCase(value.asString());
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final String v2 = toLowerCase((String) valueAssertion);
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switch (type) {
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case CONTAINS:
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filter = toFilter(v1.contains(v2));
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break;
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case STARTS_WITH:
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filter = toFilter(v1.startsWith(v2));
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break;
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default:
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filter = compare(c, type, v1, v2);
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break;
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}
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} else if (value.isNumber() && valueAssertion instanceof Number) {
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final Double v1 = value.asDouble();
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final Double v2 = ((Number) valueAssertion).doubleValue();
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filter = compare(c, type, v1, v2);
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} else if (value.isBoolean() && valueAssertion instanceof Boolean) {
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final Boolean v1 = value.asBoolean();
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final Boolean v2 = (Boolean) valueAssertion;
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filter = compare(c, type, v1, v2);
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} else {
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// This attribute mapper is a candidate but it does not match.
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filter = alwaysFalse();
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}
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h.handleResult(filter);
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}
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@Override
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void patch(final Context c, final JsonPointer path, final PatchOperation operation,
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final ResultHandler<List<Modification>> h) {
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h.handleError(new BadRequestException(i18n(
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"The request cannot be processed because it attempts to patch "
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+ "the read-only field '%s'", path)));
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}
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@Override
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void read(final Context c, final JsonPointer path, final Entry e,
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final ResultHandler<JsonValue> h) {
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h.handleResult(value.copy());
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}
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@Override
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void update(final Context c, final JsonPointer path, final Entry e, final JsonValue v,
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final ResultHandler<List<Modification>> h) {
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if (!isNullOrEmpty(v) && !v.getObject().equals(value.getObject())) {
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h.handleError(new BadRequestException(i18n(
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"The request cannot be processed because it attempts to modify "
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+ "the read-only field '%s'", path)));
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} else {
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h.handleResult(Collections.<Modification> emptyList());
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}
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}
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private <T extends Comparable<T>> Filter compare(final Context c, final FilterType type,
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final T v1, final T v2) {
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final Filter filter;
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switch (type) {
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case EQUAL_TO:
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filter = toFilter(v1.equals(v2));
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break;
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case GREATER_THAN:
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filter = toFilter(v1.compareTo(v2) > 0);
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break;
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case GREATER_THAN_OR_EQUAL_TO:
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filter = toFilter(v1.compareTo(v2) >= 0);
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break;
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case LESS_THAN:
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filter = toFilter(v1.compareTo(v2) < 0);
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break;
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case LESS_THAN_OR_EQUAL_TO:
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filter = toFilter(v1.compareTo(v2) <= 0);
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break;
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default:
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filter = alwaysFalse(); // Not supported.
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break;
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}
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return filter;
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}
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}
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