com.b2international.snowowl.datastore.request.SearchMergeRequest.java Source code

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Here is the source code for com.b2international.snowowl.datastore.request.SearchMergeRequest.java

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/*
 * Copyright 2011-2017 B2i Healthcare Pte Ltd, http://b2i.sg
 * 
 * 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 com.b2international.snowowl.datastore.request;

import java.util.List;

import com.b2international.commons.options.Options;
import com.b2international.snowowl.core.domain.RepositoryContext;
import com.b2international.snowowl.core.events.Request;
import com.b2international.snowowl.core.merge.Merge;
import com.b2international.snowowl.core.merge.MergeCollection;
import com.b2international.snowowl.core.merge.MergeService;
import com.google.common.base.Predicate;
import com.google.common.base.Predicates;
import com.google.common.collect.Lists;

/**
 * @since 4.6
 */
final class SearchMergeRequest implements Request<RepositoryContext, MergeCollection> {

    public static class SourcePredicate implements Predicate<Merge> {

        private final String source;

        public SourcePredicate(final String source) {
            this.source = source;
        }

        @Override
        public boolean apply(final Merge input) {
            return input.getSource().equals(source);
        }
    }

    public static class TargetPredicate implements Predicate<Merge> {

        private final String target;

        public TargetPredicate(final String target) {
            this.target = target;
        }

        @Override
        public boolean apply(final Merge input) {
            return input.getTarget().equals(target);
        }
    }

    public static class StatusPredicate implements Predicate<Merge> {

        private final Merge.Status status;

        public StatusPredicate(final Merge.Status status) {
            this.status = status;
        }

        @Override
        public boolean apply(final Merge input) {
            return input.getStatus().equals(status);
        }
    }

    private Options options;

    public SearchMergeRequest(Options options) {
        this.options = options;
    }

    @Override
    public MergeCollection execute(RepositoryContext context) {

        final List<Predicate<Merge>> predicates = Lists.newArrayList();

        if (options.containsKey("source")) {
            predicates.add(new SourcePredicate(options.getString("source")));
        }
        if (options.containsKey("target")) {
            predicates.add(new TargetPredicate(options.getString("target")));
        }
        if (options.containsKey("status")) {
            predicates.add(new StatusPredicate(options.get("status", Merge.Status.class)));
        }

        return context.service(MergeService.class).search(Predicates.and(predicates));
    }

}