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package org.irods.mydrop.controller
import org.apache.commons.collections.FactoryUtils
import org.apache.commons.collections.ListUtils
import org.irods.jargon.core.connection.IRODSAccount
import org.irods.jargon.core.pub.CollectionAO
import org.irods.jargon.core.pub.CollectionAndDataObjectListAndSearchAO;
import org.irods.jargon.core.pub.IRODSAccessObjectFactory
import org.irods.jargon.core.query.AVUQueryElement
import org.irods.jargon.core.query.AVUQueryOperatorEnum
import org.irods.jargon.core.query.CollectionAndDataObjectListingEntry;
import org.irods.jargon.core.query.MetaDataAndDomainData
import org.irods.jargon.core.query.AVUQueryElement.AVUQueryPart
import org.irods.jargon.core.pub.DataObjectAO;
import java.util.ArrayList;
class MetadataSearchController {
IRODSAccessObjectFactory irodsAccessObjectFactory
IRODSAccount irodsAccount
/**
* Interceptor grabs IRODSAccount from the SecurityContextHolder
*/
def beforeInterceptor = [action:this.&auth]
def auth() {
if(!session["SPRING_SECURITY_CONTEXT"]) {
redirect(controller:"login", action:"login")
return false
}
irodsAccount = session["SPRING_SECURITY_CONTEXT"]
}
def afterInterceptor = {
log.debug("closing the session")
irodsAccessObjectFactory.closeSession()
}
def index = {
}
/**
* Search iRODS metadata
* Here the data from inputs is posted.
*/
def search (MetadataSearchCommand metadataSearchCommand) {
CollectionAndDataObjectListAndSearchAO collectionAndDataObjectListAndSearchAO = irodsAccessObjectFactory.getCollectionAndDataObjectListAndSearchAO(irodsAccount)
DataObjectAO dataObjAO = irodsAccessObjectFactory.getDataObjectAO(irodsAccount) //dataObjects
CollectionAO collectionAO = irodsAccessObjectFactory.getCollectionAO(irodsAccount) //folders
List<CollectionAndDataObjectListingEntry> results = new ArrayList<CollectionAndDataObjectListingEntry>()
List<MetaDataAndDomainData> queryResults = new ArrayList<MetaDataAndDomainData>()
List<MetaDataAndDomainData> finalResults = new ArrayList<MetaDataAndDomainData>()
int counter = -1
for(AVUNode avuNode in metadataSearchCommand.AVUNodes) { //for every condition node do:
if(avuNode.andOr == "Every") { //if every condition has to be fulfilled
queryResults = connectedByAnd(avuNode, dataObjAO, collectionAO)
} else { //if at least one condition has to be fulfilled
queryResults = connectedByOr(avuNode, dataObjAO, collectionAO)
}
if(counter >= 0) { //if there's more than one node, check operator between nodes
log.info("OPERATOR:" + metadataSearchCommand.AVUOps[counter])
if (metadataSearchCommand.AVUOps[counter] == "AND") {
finalResults = intersectLists(finalResults, queryResults)
} else {
finalResults = sumOfLists(finalResults, queryResults)
}
} else {
finalResults = sumOfLists(finalResults, queryResults)
}
counter++
}
for (MetaDataAndDomainData data : finalResults){
results.add(collectionAndDataObjectListAndSearchAO.getCollectionAndDataObjectListingEntryAtGivenAbsolutePath(data.domainObjectUniqueName))
}
render(view:"/search/searchResult", model:[results:results])
}
//method used to finding files as well as folders matching every metadata query, final result is the sum of these results
private def connectedByAnd(AVUNode avuNode, DataObjectAO dataObjAO, CollectionAO collectionAO) {
List<MetaDataAndDomainData> queryRes1 = collectionAO.findMetadataValuesByMetadataQuery(createAVUQ(avuNode), true) //match folders names
List<MetaDataAndDomainData> queryRes2 = dataObjAO.findMetadataValuesByMetadataQuery(createAVUQ(avuNode)) //match dataObj names
List<MetaDataAndDomainData> queryResults = ListUtils.sum(queryRes1, queryRes2) //connect lists
queryResults
}
//method used to finding files as well as folders matching AT LEAST ONE metadata query
private def connectedByOr(AVUNode avuNode, DataObjectAO dataObjAO, CollectionAO collectionAO) {
List<AVUQueryElement> metadataQuery = new ArrayList<AVUQueryElement>()
List<MetaDataAndDomainData> finalResult = new ArrayList<MetaDataAndDomainData>()
List<MetaDataAndDomainData> queryRes1 = new ArrayList<MetaDataAndDomainData>()
List<MetaDataAndDomainData> queryRes2 = new ArrayList<MetaDataAndDomainData>()
List<MetaDataAndDomainData> queryResults = new ArrayList<MetaDataAndDomainData>()
for(AVUCommand avu in avuNode.AVUs) {
metadataQuery.clear()
metadataQuery.add(AVUQueryElement.instanceForValueQuery(AVUQueryPart.ATTRIBUTE, AVUQueryOperatorEnum.EQUAL, avu.attribute));
metadataQuery.add(AVUQueryElement.instanceForValueQuery(AVUQueryPart.VALUE, chooseOperator(avu.operator), avu.value));
if(!avu.unit.empty){
metadataQuery.add(AVUQueryElement.instanceForValueQuery(AVUQueryPart.UNITS, AVUQueryOperatorEnum.EQUAL, avu.unit));
}
queryRes1 = collectionAO.findMetadataValuesByMetadataQuery(metadataQuery, true)
queryRes2 = dataObjAO.findMetadataValuesByMetadataQuery(metadataQuery)
queryResults = ListUtils.sum(queryRes1, queryRes2)
finalResult = sumOfLists(finalResult, queryResults)
}
finalResult //return list without duplicates
}
def createAVUQ(AVUNode avuNode) { //create list of metadata queries
List<AVUQueryElement> metadataQuery = new ArrayList<AVUQueryElement>()
for(AVUCommand avu in avuNode.AVUs){
metadataQuery.add(AVUQueryElement.instanceForValueQuery(AVUQueryPart.ATTRIBUTE, AVUQueryOperatorEnum.EQUAL, avu.attribute));
metadataQuery.add(AVUQueryElement.instanceForValueQuery(AVUQueryPart.VALUE, chooseOperator(avu.operator), avu.value));
if(!avu.unit.empty){
metadataQuery.add(AVUQueryElement.instanceForValueQuery(AVUQueryPart.UNITS, AVUQueryOperatorEnum.EQUAL, avu.unit));
}
}
metadataQuery
}
//create one list from two ones without duplicates
private def sumOfLists(List<MetaDataAndDomainData> list1, List<MetaDataAndDomainData> list2) {
boolean alreadyEx = false
for(MetaDataAndDomainData elem1 in list1) {
alreadyEx = false
for(MetaDataAndDomainData elem2 in list2) {
if(elem1.getDomainObjectUniqueName() == elem2.getDomainObjectUniqueName())
alreadyEx = true
}
if(!alreadyEx) list2.add(elem1)
}
list2
}
//create list in which there are files and collections occured in both input lists
private def intersectLists(List<MetaDataAndDomainData> list1, List<MetaDataAndDomainData> list2) {
List<MetaDataAndDomainData> finalList = new ArrayList<MetaDataAndDomainData>()
boolean ex = false
for(MetaDataAndDomainData elem1 in list1) {
ex = false
for(MetaDataAndDomainData elem2 in list2) {
if(elem1.getDomainObjectUniqueName() == elem2.getDomainObjectUniqueName())
ex = true
}
if(ex) finalList.add(elem1)
}
finalList
}
def chooseOperator(String op) {
switch(op){
case "=":
AVUQueryOperatorEnum.EQUAL;
break
case ">":
AVUQueryOperatorEnum.GREATER_THAN;
break
case "<":
AVUQueryOperatorEnum.LESS_THAN;
break
case ">=":
AVUQueryOperatorEnum.GREATER_OR_EQUAL;
break
case "<=":
AVUQueryOperatorEnum.LESS_OR_EQUAL;
break
case "<>":
AVUQueryOperatorEnum.NOT_EQUAL;
break
case "like":
AVUQueryOperatorEnum.LIKE;
break
case "not like":
AVUQueryOperatorEnum.NOT_LIKE;
break
}
}
}
//Class which constists of the list of condition nodes and list of operators connecting them
class MetadataSearchCommand {
List <AVUNode> AVUNodes = ListUtils.lazyList([], FactoryUtils.instantiateFactory(AVUNode))
List <String> AVUOps = ListUtils.lazyList([], FactoryUtils.instantiateFactory(String))
}
//class consisted of AVU + operator
class AVUCommand {
String attribute
String operator //=, <, >, <=, >=, <>, like, not like
String value
String unit
static constraints = {
attribute(blank:false)
value(blank:false)
}
}
//Class consisted of list of conditions and the option (in GUI radiobutton), decripted below
class AVUNode {
List <AVUCommand> AVUs = ListUtils.lazyList([], FactoryUtils.instantiateFactory(AVUCommand))
String andOr //every condition fulfilled or at least one
}
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