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RESTHeart MongoDB - MongoDB plugin
/*-
* ========================LICENSE_START=================================
* restheart-mongodb
* %%
* Copyright (C) 2014 - 2024 SoftInstigate
* %%
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see }
*/
public class MongoURLUtils extends URLUtils {
/**
*
* @param id
* @return
* @throws UnsupportedDocumentIdException
*/
public static DOC_ID_TYPE checkId(BsonValue id) throws UnsupportedDocumentIdException {
Objects.requireNonNull(id);
var type = id.getBsonType();
return switch (type) {
case STRING -> DOC_ID_TYPE.STRING;
case OBJECT_ID -> DOC_ID_TYPE.OID;
case BOOLEAN -> DOC_ID_TYPE.BOOLEAN;
case NULL -> DOC_ID_TYPE.NULL;
case INT32 -> DOC_ID_TYPE.NUMBER;
case INT64 -> DOC_ID_TYPE.NUMBER;
case DOUBLE -> DOC_ID_TYPE.NUMBER;
case MAX_KEY -> DOC_ID_TYPE.MAXKEY;
case MIN_KEY -> DOC_ID_TYPE.MINKEY;
case DATE_TIME -> DOC_ID_TYPE.DATE;
case TIMESTAMP -> DOC_ID_TYPE.DATE;
default -> throw new UnsupportedDocumentIdException("unknown _id type: " + id.getClass().getSimpleName());
};
}
/**
* Gets the id as object from its string representation in the document URI
* NOTE: for POST the special string id are checked by
* BodyInjectorHandler.checkSpecialStringId()
*
* @param id
* @param type
* @return
* @throws UnsupportedDocumentIdException
*/
public static BsonValue getDocumentIdFromURI(String id, DOC_ID_TYPE type) throws UnsupportedDocumentIdException {
if (id == null) {
return null;
}
if (type == null) {
type = DOC_ID_TYPE.STRING_OID;
}
// MaxKey can be also determined from the _id
if (MAX_KEY_ID.equalsIgnoreCase(id)) {
return new BsonMaxKey();
}
// MaxKey can be also determined from the _id
if (MIN_KEY_ID.equalsIgnoreCase(id)) {
return new BsonMinKey();
}
// null can be also determined from the _id
if (NULL_KEY_ID.equalsIgnoreCase(id)) {
return new BsonNull();
}
// true can be also determined from the _id
if (TRUE_KEY_ID.equalsIgnoreCase(id)) {
return new BsonBoolean(true);
}
// false can be also determined from the _id
if (FALSE_KEY_ID.equalsIgnoreCase(id)) {
return new BsonBoolean(false);
}
try {
return switch (type) {
case STRING_OID -> getIdAsStringOrObjectId(id);
case OID -> getIdAsObjectId(id);
case STRING -> new BsonString(id);
case NUMBER -> getIdAsNumber(id);
case MINKEY -> new BsonMinKey();
case MAXKEY -> new BsonMaxKey();
case DATE -> getIdAsDate(id);
case BOOLEAN -> getIdAsBoolean(id);
case NULL -> new BsonNull();
default -> new BsonString(id);
};
} catch (IllegalArgumentException iar) {
throw new UnsupportedDocumentIdException(iar);
}
}
/**
* returns the request URL taking into account the instance-base-url
* configuration option. When RESTHeart is exposed via a reverse-proxy or an
* API gateway it allows mapping the Location header correctly.
*
* @param exchange
* @return
*/
static public String getRemappedRequestURL(HttpServerExchange exchange) {
var ibu = MongoServiceConfiguration.get().getInstanceBaseURL();
if (ibu == null) {
return exchange.getRequestURL();
} else {
return removeTrailingSlashes(ibu).concat(exchange.getRelativePath());
}
}
/**
*
* @param request
* @param dbName
* @param collName
* @param id
* @return
* @throws org.restheart.exchange.UnsupportedDocumentIdException
*/
static public String getUriWithDocId(
MongoRequest request,
String dbName,
String collName,
BsonValue id) throws UnsupportedDocumentIdException {
var docIdType = MongoURLUtils.checkId(id);
var sb = new StringBuilder();
sb.append("/")
.append(dbName)
.append("/")
.append(collName)
.append("/")
.append(getIdAsStringNoBrachets(id));
if (docIdType == DOC_ID_TYPE.STRING && ObjectId.isValid(id.asString().getValue())) {
sb.append("?id_type=STRING");
} else if (docIdType != DOC_ID_TYPE.STRING && docIdType != DOC_ID_TYPE.OID) {
sb.append("?id_type=").append(docIdType.name());
}
return request.mapUri(sb.toString());
}
/**
*
* @param request
* @param dbName
* @param collName
* @param ids
* @return
* @throws org.restheart.exchange.UnsupportedDocumentIdException
*/
static public String getUriWithFilterMany(
MongoRequest request,
String dbName,
String collName,
BsonValue[] ids) throws UnsupportedDocumentIdException {
var sb = new StringBuilder();
///db/coll/?filter={"ref":{"$in":{"a","b","c"}}
sb.append("/").append(dbName).append("/").append(collName).append("?")
.append("filter={").append("'")
.append("_id").append("'").append(":")
.append("{'$in'").append(":")
.append(getIdsString(ids)).append("}}");
return request.mapUri(sb.toString());
}
/**
*
* @param request
* @param dbName
* @param collName
* @param referenceField
* @param id
* @return
* @throws org.restheart.exchange.UnsupportedDocumentIdException
*/
static public String getUriWithFilterOne(
MongoRequest request,
String dbName,
String collName,
String referenceField,
BsonValue id) throws UnsupportedDocumentIdException {
var sb = new StringBuilder();
///db/coll/?filter={"ref":{"$in":{"a","b","c"}}
sb.append("/").append(dbName).append("/").append(collName).append("?")
.append("filter={").append("'")
.append(referenceField).append("'")
.append(":")
.append(getIdString(id))
.append("}");
return request.mapUri(sb.toString());
}
/**
*
* @param request
* @param dbName
* @param collName
* @param referenceField
* @param id
* @return
* @throws org.restheart.exchange.UnsupportedDocumentIdException
*/
static public String getUriWithFilterManyInverse(
MongoRequest request,
String dbName,
String collName,
String referenceField,
BsonValue id) throws UnsupportedDocumentIdException {
var sb = new StringBuilder();
///db/coll/?filter={'referenceField':{"$elemMatch":{'ids'}}}
sb.append("/").append(dbName).append("/").append(collName).append("?")
.append("filter={'").append(referenceField)
.append("':{").append("'$elemMatch':{'$eq':")
.append(getIdString(id)).append("}}}");
return BsonUtils.minify(request.mapUri(sb.toString())).toString();
}
private static BsonNumber getIdAsNumber(String id) throws IllegalArgumentException {
var ret = BsonUtils.parse(id);
if (ret.isNumber()) {
return ret.asNumber();
} else {
throw new IllegalArgumentException("The id is not a valid number " + id);
}
}
private static BsonDateTime getIdAsDate(String id) throws IllegalArgumentException {
var ret = BsonUtils.parse(id);
if (ret.isDateTime()) {
return ret.asDateTime();
} else if (ret.isInt32()) {
return new BsonDateTime(0l + ret.asInt32().getValue());
} else if (ret.isInt64()) {
return new BsonDateTime(ret.asInt64().getValue());
} else {
throw new IllegalArgumentException("The id is not a valid number " + id);
}
}
private static BsonBoolean getIdAsBoolean(String id) throws IllegalArgumentException {
if (id.equals(TRUE_KEY_ID)) {
return new BsonBoolean(true);
}
if (id.equals(FALSE_KEY_ID)) {
return new BsonBoolean(false);
}
return null;
}
private static BsonObjectId getIdAsObjectId(String id) throws IllegalArgumentException {
if (!ObjectId.isValid(id)) {
throw new IllegalArgumentException("The id is not a valid ObjectId " + id);
}
return new BsonObjectId(new ObjectId(id));
}
private static BsonValue getIdAsStringOrObjectId(String id) {
if (ObjectId.isValid(id)) {
return getIdAsObjectId(id);
}
return new BsonString(id);
}
private static String getIdAsStringNoBrachets(BsonValue id) throws UnsupportedDocumentIdException {
if (id == null) {
return null;
} else if (id.isString()) {
return id.asString().getValue();
} else if (id.isObjectId()) {
return id.asObjectId().getValue().toHexString();
} else {
return BsonUtils.minify(BsonUtils.toJson(id)).toString();
}
}
private static String getIdsString(BsonValue[] ids) throws UnsupportedDocumentIdException {
if (ids == null) {
return null;
}
var cont = 0;
var _ids = new String[ids.length];
for (BsonValue id : ids) {
_ids[cont] = getIdString(id);
cont++;
}
return BsonUtils.minify(Arrays.toString(_ids)).toString();
}
}
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