/*
* The MIT License
*
* Copyright (c) 2014 The Broad Institute
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package picard.vcf.filter;
import htsjdk.variant.variantcontext.VariantContext;
import htsjdk.variant.vcf.VCFFilterHeaderLine;
import java.util.List;
/**
* Interface for classes that can generate filters for VariantContexts. The contract is that a
* VariantContext is provided, and if the variant should be filtered out then the filter string
* should be returned, otherwise null.
*
* @author tfennell
*/
public interface VariantFilter {
/** Check to see if the VariantContext should have a filter applied to it. If so return the filter string, otherwise return null. */
public String filter(final VariantContext ctx);
/** Return VCF header lines that define filters that may be applied by the VariantFilter. */
public List<VCFFilterHeaderLine> headerLines();
}