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/*
 * SPDX-License-Identifier: Apache-2.0
 * Copyright Red Hat Inc. and Hibernate Authors
 */
package org.hibernate.search.engine.cfg.impl;

import java.util.Optional;

import org.hibernate.search.engine.cfg.ConfigurationPropertySource;
import org.hibernate.search.util.common.impl.Contracts;

public class MaskedConfigurationPropertySource implements ConfigurationPropertySource {
	private final ConfigurationPropertySource propertiesToMask;
	private final String radix;

	public MaskedConfigurationPropertySource(ConfigurationPropertySource propertiesToMask, String mask) {
		Contracts.assertNotNull( propertiesToMask, "propertiesToMask" );
		Contracts.assertNotNull( mask, "mask" );
		this.propertiesToMask = propertiesToMask;
		this.radix = mask + ".";
	}

	@Override
	public Optional get(String key) {
		return propertiesToMask.get( radix + key );
	}

	@Override
	public Optional resolve(String key) {
		return propertiesToMask.resolve( radix + key );
	}

	@Override
	public ConfigurationPropertySource withMask(String mask) {
		return new MaskedConfigurationPropertySource( propertiesToMask, radix + mask );
	}

	@Override
	public String toString() {
		StringBuilder sb = new StringBuilder( getClass().getSimpleName() )
				.append( "[" )
				.append( "mask=" ).append( radix )
				.append( ", propertiesToMask=" ).append( propertiesToMask )
				.append( "]" );
		return sb.toString();
	}
}