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/*
* Copyright (C) 2021, Thomas Wolf <thomas.wolf@paranor.ch> and others
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0 which is available at
* https://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
package org.eclipse.jgit.lib;
import java.util.Iterator;
import java.util.ServiceConfigurationError;
import java.util.ServiceLoader;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* A {@code GpgSignatureVerifierFactory} creates {@link GpgSignatureVerifier} instances.
*
* @since 5.11
*/
public abstract class GpgSignatureVerifierFactory {
private static final Logger LOG = LoggerFactory
.getLogger(GpgSignatureVerifierFactory.class);
private static volatile GpgSignatureVerifierFactory defaultFactory = loadDefault();
private static GpgSignatureVerifierFactory loadDefault() {
try {
ServiceLoader<GpgSignatureVerifierFactory> loader = ServiceLoader
.load(GpgSignatureVerifierFactory.class);
Iterator<GpgSignatureVerifierFactory> iter = loader.iterator();
if (iter.hasNext()) {
return iter.next();
}
} catch (ServiceConfigurationError e) {
LOG.error(e.getMessage(), e);
}
return null;
}
/**
* Retrieves the default factory.
*
* @return the default factory or {@code null} if none set
*/
public static GpgSignatureVerifierFactory getDefault() {
return defaultFactory;
}
/**
* Sets the default factory.
*
* @param factory
* the new default factory
*/
public static void setDefault(GpgSignatureVerifierFactory factory) {
defaultFactory = factory;
}
/**
* Creates a new {@link GpgSignatureVerifier}.
*
* @return the new {@link GpgSignatureVerifier}
*/
public abstract GpgSignatureVerifier getVerifier();
}
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