/*
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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 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.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 is responsible for converting JSON values to and from
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* LDAP attributes.
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*/
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public abstract class AttributeMapper {
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/*
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* This interface is an abstract class so that methods can be made package
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* private until API is finalized.
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*/
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AttributeMapper() {
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// Nothing to do.
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}
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/**
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* Maps a JSON value to one or more LDAP attributes, invoking a completion
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* handler once the transformation has completed. This method is invoked
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* when a REST resource is created using a create request.
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* <p>
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* If the JSON value corresponding to this mapper is not present in the
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* resource then this method will be invoked with a value of {@code null}.
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* It is the responsibility of the mapper implementation to take appropriate
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* action in this case, perhaps by substituting default LDAP values, or by
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* rejecting the update by invoking the result handler's
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* {@link ResultHandler#handleError handleError} method.
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*
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* @param c
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* The context.
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* @param path
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* The pointer from the root of the JSON resource to this
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* attribute mapper. This may be used when constructing error
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* messages.
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* @param v
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* The JSON value to be converted to LDAP attributes, which may
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* be {@code null} indicating that the JSON value was not present
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* in the resource.
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* @param h
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* The result handler.
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*/
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abstract void create(Context c, JsonPointer path, JsonValue v, ResultHandler<List<Attribute>> h);
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/**
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* Adds the names of the LDAP attributes required by this attribute mapper
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* to the provided set.
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* <p>
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* Implementations should only add the names of attributes found in the LDAP
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* entry directly associated with the resource.
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*
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* @param c
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* The context.
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* @param path
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* The pointer from the root of the JSON resource to this
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* attribute mapper. This may be used when constructing error
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* messages.
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* @param subPath
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* The targeted JSON field relative to this attribute mapper, or
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* root if all attributes associated with this mapper have been
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* targeted.
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* @param ldapAttributes
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* The set into which the required LDAP attribute names should be
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* put.
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*/
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abstract void getLDAPAttributes(Context c, JsonPointer path, JsonPointer subPath,
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Set<String> ldapAttributes);
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/**
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* Transforms the provided REST comparison filter parameters to an LDAP
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* filter representation, invoking a completion handler once the
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* transformation has completed.
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* <p>
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* If an error occurred while constructing the LDAP filter, then the result
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* handler's {@link ResultHandler#handleError handleError} method must be
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* invoked with an appropriate exception indicating the problem which
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* occurred.
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*
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* @param c
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* The context.
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* @param path
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* The pointer from the root of the JSON resource to this
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* attribute mapper. This may be used when constructing error
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* messages.
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* @param subPath
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* The targeted JSON field relative to this attribute mapper, or
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* root if all attributes associated with this mapper have been
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* targeted.
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* @param type
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* The type of REST comparison filter.
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* @param operator
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* The name of the extended operator to use for the comparison,
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* or {@code null} if {@code type} is not
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* {@link FilterType#EXTENDED}.
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* @param valueAssertion
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* The value assertion, or {@code null} if {@code type} is
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* {@link FilterType#PRESENT}.
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* @param h
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* The result handler.
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*/
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abstract void getLDAPFilter(Context c, JsonPointer path, JsonPointer subPath, FilterType type,
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String operator, Object valueAssertion, ResultHandler<Filter> h);
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/**
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* Maps a JSON patch operation to one or more LDAP modifications, invoking a
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* completion handler once the transformation has completed. This method is
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* invoked when a REST resource is modified using a patch request.
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*
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* @param c
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* The context.
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* @param path
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* The pointer from the root of the JSON resource to this
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* attribute mapper. This may be used when constructing error
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* messages.
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* @param operation
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* The JSON patch operation to be converted to LDAP
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* modifications. The targeted JSON field will be relative to
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* this attribute mapper, or root if all attributes associated
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* with this mapper have been targeted.
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* @param h
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* The result handler.
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*/
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abstract void patch(Context c, JsonPointer path, PatchOperation operation,
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ResultHandler<List<Modification>> h);
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/**
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* Maps one or more LDAP attributes to their JSON representation, invoking a
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* completion handler once the transformation has completed.
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* <p>
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* This method is invoked whenever an LDAP entry is converted to a REST
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* resource, i.e. when responding to read, query, create, put, or patch
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* requests.
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* <p>
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* If the LDAP attributes are not present in the entry, perhaps because they
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* are optional, then implementations should invoke the result handler's
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* {@link ResultHandler#handleResult handleResult} method with a result of
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* {@code null}. If the LDAP attributes cannot be mapped for any other
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* reason, perhaps because they are required but missing, or they contain
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* unexpected content, then the result handler's
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* {@link ResultHandler#handleError handleError} method must be invoked with
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* an appropriate exception indicating the problem which occurred.
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*
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* @param c
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* The context.
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* @param path
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* The pointer from the root of the JSON resource to this
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* attribute mapper. This may be used when constructing error
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* messages.
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* @param e
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* The LDAP entry to be converted to JSON.
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* @param h
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* The result handler.
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*/
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abstract void read(Context c, JsonPointer path, Entry e, ResultHandler<JsonValue> h);
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/**
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* Maps a JSON value to one or more LDAP modifications, invoking a
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* completion handler once the transformation has completed. This method is
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* invoked when a REST resource is modified using an update request.
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* <p>
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* If the JSON value corresponding to this mapper is not present in the
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* resource then this method will be invoked with a value of {@code null}.
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* It is the responsibility of the mapper implementation to take appropriate
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* action in this case, perhaps by substituting default LDAP values, or by
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* rejecting the update by invoking the result handler's
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* {@link ResultHandler#handleError handleError} method.
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*
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* @param c
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* The context.
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* @param v
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* The JSON value to be converted to LDAP attributes, which may
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* be {@code null} indicating that the JSON value was not present
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* in the resource.
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* @param h
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* The result handler.
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*/
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abstract void update(Context c, JsonPointer path, Entry e, JsonValue v,
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ResultHandler<List<Modification>> h);
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// TODO: methods for obtaining schema information (e.g. name, description,
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// type information).
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// TODO: methods for creating sort controls.
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}
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