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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.openejb.config;

import org.apache.openejb.classloader.ClassLoaderConfigurer;
import org.apache.openejb.classloader.ProvisioningClassLoaderConfigurer;
import org.apache.openejb.loader.SystemInstance;

import java.io.File;

public final class QuickJarsTxtParser {
    private static final boolean ACTIVATED = SystemInstance.get().getOptions().get("openejb.jarstxt.activated", true);

    public static final String FILE_NAME = "jars.txt";

    private QuickJarsTxtParser() {
        // no-op
    }

    public static ClassLoaderConfigurer parse(final File file) {
        if (!ACTIVATED || !file.exists()) {
            return null;
        }

        final ProvisioningClassLoaderConfigurer configurer = new ProvisioningClassLoaderConfigurer();
        configurer.setConfiguration(file.getAbsolutePath());
        return configurer;
    }
}