/* | |
* Copyright 2001-2008 The Apache Software Foundation. | |
* | |
* Licensed under the Apache License, Version 2.0 (the "License"); | |
* you may not use this file except in compliance with the License. | |
* You may obtain a copy of the License at | |
* | |
* http://www.apache.org/licenses/LICENSE-2.0 | |
* | |
* Unless required by applicable law or agreed to in writing, software | |
* distributed under the License is distributed on an "AS IS" BASIS, | |
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
* See the License for the specific language governing permissions and | |
* limitations under the License. | |
* | |
*/ | |
package org.apache.juddi.query; | |
import java.util.List; | |
import javax.persistence.EntityManager; | |
import org.apache.juddi.query.util.DynamicQuery; | |
import org.apache.juddi.query.util.FindQualifiers; | |
import org.uddi.api_v3.Name; | |
/** | |
* Returns the list of service keys possessing the Names in the passed Name list. | |
* Output is restricted by list of service keys passed in. If null, all services are searched. | |
* Output is produced by building the appropriate JPA query based on input and find qualifiers. | |
* | |
* From specification: | |
* "This optional collection of string values represents one or more names potentially qualified with xml:lang attributes. | |
* Since "exactMatch" is the default behavior, the value supplied for the name argument must be an exact match. If the "approximateMatch" | |
* findQualifier is used together with an appropriate wildcard character in the name, then any businessService data contained in the specified | |
* businessEntity (or across all businesses if the businessKey is omitted or specified as empty) with matching name value will be returned. | |
* Matching occurs using wildcard matching rules. See Section 5.1.6 About Wildcards. If multiple name values are passed, the match occurs | |
* on a logical OR basis within any names supplied. Each name MAY be marked with an xml:lang adornment. If a language markup is specified, | |
* the search results report a match only on those entries that match both the name value and language criteria. The match on language is a | |
* leftmost case-insensitive comparison of the characters supplied. This allows one to find all services whose name begins with an "A" and are | |
* expressed in any dialect of French, for example. Values which can be passed in the language criteria adornment MUST obey the rules governing | |
* the xml:lang data type as defined in Section 3.3.2.3 name." | |
* | |
* @author <a href="mailto:jfaath@apache.org">Jeff Faath</a> | |
*/ | |
public class FindServiceByNameQuery { | |
public static final String ENTITY_NAME_CHILD = "ServiceName"; | |
private static final FindEntityByNamesQuery findQuery; | |
static { | |
findQuery = new FindEntityByNamesQuery(BusinessServiceQuery.ENTITY_NAME, | |
BusinessServiceQuery.ENTITY_ALIAS, | |
BusinessServiceQuery.KEY_NAME, | |
BusinessServiceQuery.ENTITY_FIELD, | |
ENTITY_NAME_CHILD, | |
BusinessServiceQuery.SIGNATURE_PRESENT); | |
} | |
public static List<Object> select(EntityManager em, FindQualifiers fq, List<Name> names, String parentKey, List<Object> keysIn) { | |
if (parentKey != null && parentKey.length() > 0) { | |
DynamicQuery.Parameter param = new DynamicQuery.Parameter(BusinessServiceQuery.ENTITY_ALIAS + "." + BusinessServiceQuery.KEY_NAME_PARENT, parentKey, DynamicQuery.PREDICATE_EQUALS); | |
return findQuery.select(em, fq, names, keysIn, param); | |
} | |
else | |
return findQuery.select(em, fq, names, keysIn); | |
} | |
} |