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/*
 * Copyright 2005-2019 Dozer Project
 *
 * Licensed 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 top.tangyh.basic.dozer;

import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.core.io.Resource;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import org.springframework.core.io.support.ResourcePatternResolver;

import java.io.IOException;
import java.util.Arrays;
import java.util.Optional;
import java.util.stream.Stream;

/**
 * Configuration properties for Dozer.
 *
 * @author zuihou
 */
@ConfigurationProperties(prefix = "dozer")
public class DozerProperties {

    private static final ResourcePatternResolver PATTERN_RESOLVER = new PathMatchingResourcePatternResolver();

    /**
     * Mapping files configuration.
     * For example "classpath:*.dozer.xml".
     */
    private String[] mappingFiles = new String[]{"classpath*:dozer/*.dozer.xml"};

    /**
     * Mapping files configuration.
     *
     * @return mapping files
     */
    public String[] getMappingFiles() {
        return Arrays.copyOf(mappingFiles, mappingFiles.length);
    }

    /**
     * Set mapping files configuration. For example classpath:*.dozer.xml.
     *
     * @param mappingFiles dozer mapping files
     * @return dozer properties
     */
    public DozerProperties setMappingFiles(String[] mappingFiles) {
        this.mappingFiles = Arrays.copyOf(mappingFiles, mappingFiles.length);
        return this;
    }

    public Resource[] resolveMapperLocations() {
        return Stream.of(Optional.ofNullable(this.mappingFiles).orElse(new String[0]))
                .flatMap(location -> Stream.of(getResources(location)))
                .toArray(Resource[]::new);
    }

    private Resource[] getResources(String location) {
        try {
            return PATTERN_RESOLVER.getResources(location);
        } catch (IOException var3) {
            return new Resource[0];
        }
    }

}