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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.tomitribe.crest.xbean;

import org.apache.xbean.finder.AnnotationFinder;
import org.apache.xbean.finder.archive.Archive;
import org.tomitribe.crest.BashCompletion;
import org.tomitribe.crest.cmds.processors.Commands;
import org.tomitribe.crest.api.Command;

import java.lang.reflect.Method;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;

public abstract class XbeanScanningLoader implements Commands.Loader {
    final Set> classes = new HashSet<>();

    public XbeanScanningLoader(final Archive archive) {
        final AnnotationFinder finder = new AnnotationFinder(archive);

        for (final Method method : finder.findAnnotatedMethods(Command.class)) {
            classes.add(method.getDeclaringClass());
        }
        classes.remove(BashCompletion.class);
    }


    @Override
    public Iterator> iterator() {
        return classes.iterator();
    }
}