UnpackSelector.java

/*
 * 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.tika.extractor;

import org.apache.tika.metadata.Metadata;
import org.apache.tika.parser.ParseContext;

public interface UnpackSelector {

    class AcceptAll implements UnpackSelector {
        @Override
        public boolean select(Metadata metadata) {
            return true;
        }
    }
    UnpackSelector ACCEPT_ALL = new AcceptAll();

    boolean select(Metadata metadata);

    /**
     * Per-parse variant; the default ignores the context. Override to keep state per parse,
     * since one selector instance may serve many parses.
     */
    default boolean select(Metadata metadata, ParseContext context) {
        return select(metadata);
    }
}