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A mapping platform to load CSW records into Elasticsearch
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/*
 * Copyright 2015-2019 52°North Initiative for Geospatial Open Source
 * Software GmbH
 *
 * 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.n52.youngs.transform.impl;

import com.google.common.base.MoreObjects;
import com.google.common.collect.Maps;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import javax.xml.xpath.XPathExpression;
import org.n52.youngs.transform.MappingEntry;

/**
 *
 * @author Daniel Nüst
 */
public class MappingEntryImpl implements MappingEntry {

    private final XPathExpression xPath;

    private final Map indexProperties = Maps.newHashMap();

    private Optional identifier = Optional.empty();

    private Optional location = Optional.empty();

    private Optional> coordinates = Optional.empty();

    private Optional coordinatesType = Optional.empty();

    private Optional raw = Optional.empty();

    private Optional> replacements = Optional.empty();

    private Optional> outputProperties = Optional.empty();

    private Optional split = Optional.empty();

    private final List children;

    private final String fieldName;
    private XPathExpression condition;
    private final Map suggest;

    public MappingEntryImpl(String fieldName, XPathExpression xPath, Map indexProperties,
        boolean identifier, boolean location, boolean rawXml) {
        this(fieldName, xPath, indexProperties, identifier, location, rawXml, null);
    }

    public MappingEntryImpl(String fieldName, XPathExpression xPath, Map indexProperties,
            boolean identifier, boolean location, boolean rawXml, XPathExpression condition) {
        this(fieldName, xPath, indexProperties, identifier, location, rawXml, condition, Collections.emptyList());
    }

    public MappingEntryImpl(String fieldName, XPathExpression xPath, Map indexProperties,
            boolean identifier, boolean location, boolean rawXml, XPathExpression condition, List children) {
        this(fieldName, xPath, indexProperties, identifier, location, rawXml, condition, children, null);
    }

    public MappingEntryImpl(String fieldName, XPathExpression xPath, Map indexProperties,
            boolean identifier, boolean location, boolean rawXml, XPathExpression condition, List children,
            Map suggest) {
        this.fieldName = fieldName;
        this.xPath = xPath;
        this.indexProperties.putAll(indexProperties);
        this.identifier = Optional.of(identifier);
        this.location = Optional.of(location);
        this.raw = Optional.of(rawXml);
        this.condition = condition;
        this.children = children;
        this.suggest = suggest;
    }

    @Override
    public XPathExpression getXPath() {
        return xPath;
    }

    @Override
    public String getFieldName() {
        return this.fieldName;
    }

    public MappingEntryImpl addIndexProperty(String key, Object value) {
        this.indexProperties.put(key, value);
        return this;
    }

    @Override
    public Map getIndexProperties() {
        return this.indexProperties;
    }

    @Override
    public Object getIndexPropery(String name) {
        return this.indexProperties.get(name);
    }

    @Override
    public String toString() {
        return MoreObjects.toStringHelper(this)
                .add("xpath", xPath)
                .add("identifer", identifier.orElse(null))
                .add("location", location.orElse(null))
                .add("raw", raw.orElse(null))
                .add("analyzed", isAnalyzed())
                .add("properties", Arrays.deepToString(indexProperties.entrySet().toArray()))
                .omitNullValues()
                .toString();
    }

    @Override
    public boolean isIdentifier() {
        return identifier.isPresent() && identifier.get();
    }

    @Override
    public boolean isLocation() {
        return location.isPresent() && location.get();
    }

    @Override
    public boolean hasCoordinates() {
        return coordinates.isPresent();
    }

    @Override
    public List getCoordinatesXPaths() {
        return coordinates.get();
    }

    public MappingEntryImpl setCoordinatesXPaths(List coords) {
        this.coordinates = Optional.of(coords);
        return this;
    }

    @Override
    public boolean hasCoordinatesType() {
        return this.coordinatesType.isPresent();
    }

    @Override
    public String getCoordinatesType() {
        return this.coordinatesType.get();
    }

    public MappingEntryImpl setCoordinatesType(String type) {
        this.coordinatesType = Optional.of(type);
        return this;
    }

    @Override
    public boolean isRawXml() {
        return raw.isPresent() && raw.get();
    }

    @Override
    public boolean isAnalyzed() {
        boolean analyzed = true;
        if (indexProperties.containsKey(INDEX_MAPPING_ATTRIBUTE)) {
            analyzed = !(indexProperties.get(INDEX_MAPPING_ATTRIBUTE).equals(false)
                    || indexProperties.get(INDEX_MAPPING_ATTRIBUTE).equals("no"));
        }
        else if (indexProperties.containsKey(IndexProperties.TYPE)) {
            // by default, keywords are not analyzed in ES 6.x
            analyzed = !(indexProperties.get(IndexProperties.TYPE).equals("keyword"));
        }

        return analyzed;
    }

    @Override
    public boolean hasReplacements() {
        return replacements.isPresent();
    }

    @Override
    public Map getReplacements() {
        return replacements.get();
    }

    public MappingEntryImpl setReplacements(Map replacements) {
        this.replacements = Optional.of(replacements);
        return this;
    }

    @Override
    public boolean hasOutputProperties() {
        return this.outputProperties.isPresent();
    }

    @Override
    public Map getOutputProperties() {
        return this.outputProperties.get();
    }

    public void setOutputProperties(Map properties) {
        this.outputProperties = Optional.of(properties);
    }

    @Override
    public boolean hasSplit() {
        return this.split.isPresent();
    }

    @Override
    public String getSplit() {
        return split.get();
    }

    public MappingEntryImpl setSplit(String split) {
        this.split = Optional.of(split);
        return this;
    }

    @Override
    public XPathExpression getCondition() {
        return this.condition;
    }

    @Override
    public boolean hasCondition() {
        return this.condition != null;
    }

    @Override
    public List getChildren() {
        return children;
    }

    @Override
    public boolean hasSuggest() {
        return suggest != null && !suggest.isEmpty();
    }

    @Override
    public Map getSuggest() {
        return this.suggest;
    }

}