com.b2international.snowowl.snomed.importer.release.ReleaseFileSetSelectors.java Source code

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Here is the source code for com.b2international.snowowl.snomed.importer.release.ReleaseFileSetSelectors.java

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/*
 * Copyright 2011-2018 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.snomed.importer.release;

import java.io.IOException;
import java.io.InputStream;
import java.util.List;
import java.util.Properties;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.b2international.snowowl.snomed.importer.release.ReleaseFileSet.ReleaseComponentType;
import com.b2international.snowowl.snomed.importer.release.SimpleReleaseFile.SimpleReleaseComponentType;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;

/**
 * Configures the two release file set selector instances from an externally supplied property file.
 * 
 */
public final class ReleaseFileSetSelectors {

    private static final Logger LOGGER = LoggerFactory.getLogger(ReleaseFileSetSelectors.class);

    public static final ReleaseFileSetSelector SELECTORS;

    private static Properties getProperties() {
        final Properties properties = new Properties();
        final InputStream propertiesInputStream = ReleaseFileSetSelectors.class
                .getResourceAsStream("releases.properties");

        try {
            properties.load(propertiesInputStream);
        } catch (final IOException e) {
            LOGGER.error("Couldn't load release file configuration.", e);
        }

        return properties;
    }

    private static ReleaseFileSetSelector parseProperties(final Properties properties, final String prefix) {

        int idx = 0;
        final ImmutableList.Builder<ReleaseFileSet> releaseFileSetBuilder = ImmutableList.builder();

        while (properties.containsKey(prefix + "." + idx + ".terminologyRoot")) {

            releaseFileSetBuilder
                    .add(createSnapshotReleaseFileSet(getProperty(properties, prefix, idx, "terminologyRoot"),
                            getProperty(properties, prefix, idx, "refSetRoot"),
                            getProperty(properties, prefix, idx, "languageRefSetRoot"),
                            Boolean.valueOf(getProperty(properties, prefix, idx, "includesStatedRelationships")),
                            Boolean.valueOf(getProperty(properties, prefix, idx, "testRelease")),
                            getListProperty(properties, prefix, idx, "refSetPaths")));

            idx++;
        }

        return new ReleaseFileSetSelector(releaseFileSetBuilder.build());
    }

    private static List<String> getListProperty(final Properties properties, final String prefix, final int idx,
            final String key) {

        int subIdx = 0;
        final ImmutableList.Builder<String> listBuilder = ImmutableList.builder();

        String item;

        while ((item = getListItemProperty(properties, prefix, idx, key, subIdx)) != null) {
            listBuilder.add(item);
            subIdx++;
        }

        return listBuilder.build();
    }

    private static String getListItemProperty(final Properties properties, final String prefix, final int idx,
            final String key, final int subIdx) {
        return properties.getProperty(prefix + "." + idx + "." + key + "." + subIdx);
    }

    private static String getProperty(final Properties properties, final String prefix, final int idx,
            final String key) {
        return properties.getProperty(prefix + "." + idx + "." + key);
    }

    private static ReleaseFileSet createSnapshotReleaseFileSet(final String terminologyRoot,
            final String refSetRoot, final String languageRefSetRoot, final boolean includesStatedRelationships,
            final boolean testRelease, final List<String> refSetPaths) {

        final ImmutableMap.Builder<ReleaseComponentType, ReleaseFile> componentMapBuilder = ImmutableMap.builder();

        componentMapBuilder.put(ReleaseComponentType.CONCEPT,
                new SimpleReleaseFile(terminologyRoot, SimpleReleaseComponentType.CONCEPT));
        componentMapBuilder.put(ReleaseComponentType.RELATIONSHIP,
                new SimpleReleaseFile(terminologyRoot, SimpleReleaseComponentType.RELATIONSHIP));
        componentMapBuilder.put(ReleaseComponentType.DESCRIPTION, new DescriptionReleaseFile(terminologyRoot));
        componentMapBuilder.put(ReleaseComponentType.LANGUAGE_REFERENCE_SET,
                new LanguageRefsetReleaseFile(languageRefSetRoot));
        componentMapBuilder.put(ReleaseComponentType.TEXT_DEFINITION,
                new TextDefinitionReleaseFile(terminologyRoot));

        if (includesStatedRelationships) {
            componentMapBuilder.put(ReleaseComponentType.STATED_RELATIONSHIP,
                    new SimpleReleaseFile(terminologyRoot, SimpleReleaseComponentType.STATEDRELATIONSHIP));
        }

        return new ReleaseFileSet(testRelease, componentMapBuilder.build(), refSetPaths);
    }

    static {
        final Properties properties = getProperties();
        SELECTORS = parseProperties(properties, "selector");
    }

    private ReleaseFileSetSelectors() {
        // Prevent instantiation
    }
}