org.elasticsearch.hadoop.serialization.builder.FilteringValueWriter Maven / Gradle / Ivy
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* the Apache License, Version 2.0 (the "License"); you may
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* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
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package org.elasticsearch.hadoop.serialization.builder;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import org.elasticsearch.hadoop.cfg.Settings;
import org.elasticsearch.hadoop.serialization.SettingsAware;
import org.elasticsearch.hadoop.serialization.field.FieldFilter;
import org.elasticsearch.hadoop.serialization.field.FieldFilter.NumberedInclude;
import org.elasticsearch.hadoop.util.StringUtils;
public abstract class FilteringValueWriter implements ValueWriter, SettingsAware {
private List includes;
private List excludes;
@Override
public void setSettings(Settings settings) {
List includeAsStrings = StringUtils.tokenize(settings.getMappingIncludes());
includes = (includeAsStrings.isEmpty() ? Collections. emptyList() : new ArrayList(includeAsStrings.size()));
for (String include : includeAsStrings) {
includes.add(new NumberedInclude(include));
}
excludes = StringUtils.tokenize(settings.getMappingExcludes());
}
protected boolean shouldKeep(String parentField, String name) {
name = StringUtils.hasText(parentField) ? parentField + "." + name : name;
return FieldFilter.filter(name, includes, excludes).matched;
}
}