/*
|
* The contents of this file are subject to the terms of the Common Development and
|
* Distribution License (the License). You may not use this file except in compliance with the
|
* License.
|
*
|
* You can obtain a copy of the License at legal/CDDLv1.0.txt. See the License for the
|
* specific language governing permission and limitations under the License.
|
*
|
* When distributing Covered Software, include this CDDL Header Notice in each file and include
|
* the License file at legal/CDDLv1.0.txt. If applicable, add the following below the CDDL
|
* Header, with the fields enclosed by brackets [] replaced by your own identifying
|
* information: "Portions Copyright [year] [name of copyright owner]".
|
*
|
* Copyright 2012-2013 ForgeRock AS.
|
*/
|
package org.forgerock.opendj.rest2ldap;
|
|
import static org.forgerock.opendj.rest2ldap.Utils.accumulate;
|
import static org.forgerock.opendj.rest2ldap.Utils.transform;
|
|
import java.util.ArrayList;
|
import java.util.Collections;
|
import java.util.Iterator;
|
import java.util.LinkedHashMap;
|
import java.util.LinkedList;
|
import java.util.List;
|
import java.util.Map;
|
import java.util.Set;
|
|
import org.forgerock.json.fluent.JsonPointer;
|
import org.forgerock.json.fluent.JsonValue;
|
import org.forgerock.json.resource.ResultHandler;
|
import org.forgerock.opendj.ldap.Attribute;
|
import org.forgerock.opendj.ldap.Entry;
|
import org.forgerock.opendj.ldap.Filter;
|
import org.forgerock.opendj.ldap.Function;
|
|
/**
|
* An attribute mapper which combines the results of a set of subordinate
|
* attribute mappers into a single JSON object.
|
*/
|
public final class CompositeAttributeMapper implements AttributeMapper {
|
private final List<AttributeMapper> attributeMappers = new LinkedList<AttributeMapper>();
|
|
/**
|
* Creates a new composite attribute mapper.
|
*/
|
public CompositeAttributeMapper() {
|
// No implementation required.
|
}
|
|
/**
|
* Adds a subordinate attribute mapper to this composite attribute mapper.
|
*
|
* @param mapper
|
* The subordinate attribute mapper.
|
* @return This composite attribute mapper.
|
*/
|
public CompositeAttributeMapper addMapper(final AttributeMapper mapper) {
|
attributeMappers.add(mapper);
|
return this;
|
}
|
|
/**
|
* {@inheritDoc}
|
*/
|
@Override
|
public void getLDAPAttributes(final Context c, final JsonPointer jsonAttribute,
|
final Set<String> ldapAttributes) {
|
for (final AttributeMapper attribute : attributeMappers) {
|
attribute.getLDAPAttributes(c, jsonAttribute, ldapAttributes);
|
}
|
}
|
|
/**
|
* {@inheritDoc}
|
*/
|
@Override
|
public void getLDAPFilter(final Context c, final FilterType type,
|
final JsonPointer jsonAttribute, final String operator, final Object valueAssertion,
|
final ResultHandler<Filter> h) {
|
final ResultHandler<Filter> handler =
|
accumulate(attributeMappers.size(), transform(
|
new Function<List<Filter>, Filter, Void>() {
|
@Override
|
public Filter apply(final List<Filter> value, final Void p) {
|
// Remove unmapped filters and combine using logical-OR.
|
final Iterator<Filter> i = value.iterator();
|
while (i.hasNext()) {
|
final Filter f = i.next();
|
if (f == null) {
|
// No mapping so remove.
|
i.remove();
|
} else if (f == c.getConfig().falseFilter()) {
|
return c.getConfig().falseFilter();
|
} else if (f == c.getConfig().trueFilter()) {
|
return c.getConfig().trueFilter();
|
}
|
}
|
switch (value.size()) {
|
case 0:
|
// No mappings found.
|
return null;
|
case 1:
|
return value.get(0);
|
default:
|
return Filter.or(value);
|
}
|
}
|
}, h));
|
for (final AttributeMapper subMapper : attributeMappers) {
|
subMapper.getLDAPFilter(c, type, jsonAttribute, operator, valueAssertion, handler);
|
}
|
}
|
|
/**
|
* {@inheritDoc}
|
*/
|
@Override
|
public void toJSON(final Context c, final Entry e, final ResultHandler<Map<String, Object>> h) {
|
final ResultHandler<Map<String, Object>> handler =
|
accumulate(attributeMappers.size(), transform(
|
new Function<List<Map<String, Object>>, Map<String, Object>, Void>() {
|
@Override
|
public Map<String, Object> apply(final List<Map<String, Object>> value,
|
final Void p) {
|
switch (value.size()) {
|
case 0:
|
return Collections.<String, Object> emptyMap();
|
case 1:
|
return value.get(0) != null ? value.get(0) : Collections
|
.<String, Object> emptyMap();
|
default:
|
return mergeJsonValues(value,
|
new LinkedHashMap<String, Object>());
|
}
|
}
|
}, h));
|
for (final AttributeMapper mapper : attributeMappers) {
|
mapper.toJSON(c, e, handler);
|
}
|
}
|
|
/**
|
* {@inheritDoc}
|
*/
|
@Override
|
public void toLDAP(final Context c, final JsonValue v, final ResultHandler<List<Attribute>> h) {
|
// TODO Auto-generated method stub
|
}
|
|
@SuppressWarnings("unchecked")
|
private void mergeJsonValue(final Map<String, Object> srcValue,
|
final Map<String, Object> dstValue) {
|
for (final Map.Entry<String, Object> record : srcValue.entrySet()) {
|
final String key = record.getKey();
|
final Object newValue = record.getValue();
|
Object existingValue = dstValue.get(key);
|
if (existingValue == null) {
|
// Value is new, so just add it.
|
dstValue.put(key, newValue);
|
} else if ((existingValue instanceof Map) && (newValue instanceof Map)) {
|
// Merge two maps - create a new Map, in case the existing one
|
// is unmodifiable.
|
existingValue =
|
new LinkedHashMap<String, Object>((Map<String, Object>) existingValue);
|
mergeJsonValue((Map<String, Object>) newValue, (Map<String, Object>) existingValue);
|
} else if ((existingValue instanceof List) && (newValue instanceof List)) {
|
// Merge two lists- create a new List, in case the existing one
|
// is unmodifiable.
|
final List<Object> tmp = new ArrayList<Object>((List<Object>) existingValue);
|
tmp.addAll((List<Object>) newValue);
|
existingValue = tmp;
|
}
|
|
// Replace the existing value.
|
dstValue.put(key, newValue);
|
}
|
}
|
|
private Map<String, Object> mergeJsonValues(final List<Map<String, Object>> srcValues,
|
final Map<String, Object> dstValue) {
|
for (final Map<String, Object> value : srcValues) {
|
if (value != null) {
|
mergeJsonValue(value, dstValue);
|
}
|
}
|
return dstValue;
|
}
|
}
|
