org.openqa.selenium.grid.config.ConcatenatingConfig Maven / Gradle / Ivy

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//
//   http://www.apache.org/licenses/LICENSE-2.0
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package org.openqa.selenium.grid.config;

import com.google.common.collect.ImmutableMap;

import java.util.AbstractMap;
import java.util.Map;
import java.util.Objects;
import java.util.Optional;

public class ConcatenatingConfig implements Config {

  private final String prefix;
  private final char separator;
  private final Map values;

  public ConcatenatingConfig(String prefix, char separator, Map values) {
    this.prefix = prefix == null || "".equals(prefix) ? "" : (prefix + separator);
    this.separator = separator;

    this.values = Objects.requireNonNull(values).entrySet().stream()
        .peek(entry -> Objects.requireNonNull(entry.getKey(), "Key has not been set"))
        .peek(entry -> Objects.requireNonNull(entry.getValue(), "Value has not been set"))
        .map(entry -> new AbstractMap.SimpleImmutableEntry<>(
            String.valueOf(entry.getKey()),
            String.valueOf(entry.getValue())))
        .collect(ImmutableMap.toImmutableMap(Map.Entry::getKey, Map.Entry::getValue));
  }

  @Override
  public Optional get(String section, String option) {
    String key = prefix + section + separator + option;

    return values.entrySet().stream()
        .filter(entry -> key.equalsIgnoreCase(entry.getKey()))
        .map(Map.Entry::getValue)
        .findFirst();
  }
}