FindRuleFlowNamesQuery.java

/*
 * Copyright 2016 Red Hat, Inc. and/or its affiliates.
 *
 * 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.kie.workbench.common.services.refactoring.backend.server.query.standard;

import org.apache.lucene.search.Query;
import org.kie.workbench.common.services.refactoring.backend.server.query.NamedQuery;
import org.kie.workbench.common.services.refactoring.backend.server.query.response.ResponseBuilder;
import org.kie.workbench.common.services.refactoring.model.index.terms.SharedPartIndexTerm;
import org.kie.workbench.common.services.refactoring.model.index.terms.valueterms.ValueBranchNameIndexTerm;
import org.kie.workbench.common.services.refactoring.model.index.terms.valueterms.ValueIndexTerm;
import org.kie.workbench.common.services.refactoring.model.index.terms.valueterms.ValueProjectNameIndexTerm;
import org.kie.workbench.common.services.refactoring.model.index.terms.valueterms.ValueSharedPartIndexTerm;
import org.kie.workbench.common.services.refactoring.model.query.RefactoringPageRow;
import org.kie.workbench.common.services.refactoring.model.query.RefactoringMapPageRow;
import org.kie.workbench.common.services.refactoring.service.PartType;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.uberfire.backend.server.util.Paths;
import org.uberfire.backend.vfs.Path;
import org.uberfire.ext.metadata.model.KObject;
import org.uberfire.ext.metadata.model.KProperty;
import org.uberfire.io.IOService;
import org.uberfire.paging.PageResponse;

import javax.enterprise.context.ApplicationScoped;
import javax.inject.Inject;
import javax.inject.Named;
import java.net.URI;
import java.util.*;

@ApplicationScoped
public class FindRuleFlowNamesQuery extends AbstractFindQuery implements NamedQuery {

    private static final Logger logger = LoggerFactory.getLogger(FindRuleFlowNamesQuery.class);

    @Inject
    @Named("ioStrategy")
    private IOService ioService;

    private RuleFlowNamesResponseBuilder responseBuilder = new RuleFlowNamesResponseBuilder();

    public static final String NAME = FindRuleFlowNamesQuery.class.getSimpleName();

    @Override
    public String getName() {
        return NAME;
    }

    @Override
    public ResponseBuilder getResponseBuilder() {
        responseBuilder.setIOService(ioService);
        return responseBuilder;
    }

    /* (non-Javadoc)
     * @see org.kie.workbench.common.services.refactoring.backend.server.query.IndexQuery#toQuery(java.util.Set)
     */
    @Override
    public Query toQuery(Set<ValueIndexTerm> terms) {
        return buildFromSingleTerm(terms);
    }

    private static final ValueSharedPartIndexTerm ruleFlowTerm = new ValueSharedPartIndexTerm("not-used", PartType.RULEFLOW_GROUP);

    @Override
    public void validateTerms(Set<ValueIndexTerm> queryTerms) throws IllegalArgumentException {
        checkNotNullAndNotEmpty(queryTerms);

        checkInvalidAndRequiredTerms(queryTerms,
                NAME,
                new String [] {
                        null, null,  // not required
                        ruleFlowTerm.getTerm()
                },
                (t) -> (t instanceof ValueProjectNameIndexTerm),
                (t) -> (t instanceof ValueBranchNameIndexTerm),
                (t) -> (t.getTerm().equals(ruleFlowTerm.getTerm())));
    }

    private static class RuleFlowNamesResponseBuilder implements ResponseBuilder {
        private IOService ioService;

        public void setIOService(IOService ioService) {
            this.ioService = ioService;
        }

        @Override
        public PageResponse<RefactoringPageRow> buildResponse( final int pageSize,
                                                               final int startRow,
                                                               final List<KObject> kObjects ) {
            final int hits = kObjects.size();
            final PageResponse<RefactoringPageRow> response = new PageResponse();
            final List<RefactoringPageRow> result = buildResponse( kObjects );
            response.setTotalRowSize( hits );
            response.setPageRowList( result );
            response.setTotalRowSizeExact( true );
            response.setStartRowIndex( startRow );
            response.setLastPage( ( pageSize * startRow + 2 ) >= hits );

            return response;
        }

        @Override
        public List<RefactoringPageRow> buildResponse( final List<KObject> kObjects ) {
            final List<RefactoringPageRow> result = new ArrayList( kObjects.size() );

            for ( final KObject kObject : kObjects ) {
                final Map<String, Map<String, String>> ruleFlowGroupNames = getRuleFlowGroupNamesNamesFromKObject(kObject);
                for(String rkey : ruleFlowGroupNames.keySet()) {
                    RefactoringMapPageRow row = new RefactoringMapPageRow();
                    row.setValue(ruleFlowGroupNames.get(rkey));
                    result.add(row);
                }
            }

            return result;
        }

        private Map<String, Map<String, String>> getRuleFlowGroupNamesNamesFromKObject( final KObject kObject ) {
            final Map<String, Map<String, String>> ruleFlowGroupNames = new HashMap<String, Map<String, String>>();
            if ( kObject == null ) {
                return ruleFlowGroupNames;
            }
            for ( KProperty property : kObject.getProperties() ) {
                if ( property.getName().equals(  SharedPartIndexTerm.TERM + ":" + PartType.RULEFLOW_GROUP.toString() ) ) {
                    if(ruleFlowGroupNames.containsKey(property.getValue().toString())) {
                        final Path path = Paths.convert(ioService.get(URI.create(kObject.getKey())));
                        ruleFlowGroupNames.get(property.getValue().toString()).put("name", property.getValue().toString());
                        ruleFlowGroupNames.get(property.getValue().toString()).put("filename", path.getFileName());
                        ruleFlowGroupNames.get(property.getValue().toString()).put("pathuri", path.toURI());
                    } else {
                        final Path path = Paths.convert(ioService.get(URI.create(kObject.getKey())));
                        ruleFlowGroupNames.put(property.getValue().toString(), new HashMap<String, String>());
                        ruleFlowGroupNames.get(property.getValue().toString()).put("name", property.getValue().toString());
                        ruleFlowGroupNames.get(property.getValue().toString()).put("filename", path.getFileName());
                        ruleFlowGroupNames.get(property.getValue().toString()).put("pathuri", path.toURI());
                    }
                }
            }

            return ruleFlowGroupNames;
        }

    }
}