DownloadSymbolsToDirService.java

/*
 * Copyright (c) 2021 by k3b.
 *
 * This file is part of k3b-geoHelper library.
 *
 * 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 de.k3b.geo.io;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;

/** Dowloads Symbols in List<IGeoPointInfo> points and saves them to local file */
public class DownloadSymbolsToDirService extends DownloadSymbolsBaseService {
    private File dir = null;

    /**
     * @param userAgent a string identifying the calling app.
     *                  i.e. "MyHelloWikipediaApp/1.0 (https://github.com/MyName/MyHelloWikipediaApp)"
     *                  see https://meta.wikimedia.org/wiki/Special:MyLanguage/User-Agent_policy
     */
    public DownloadSymbolsToDirService(String userAgent) {
        super(userAgent);
    }

    /**
     * define the dir where the symbols are stored to
     */
    public DownloadSymbolsToDirService dir(File dir) {
        this.dir = dir;
        return this;
    }

    /** symbol url is based on file directory */
    @Override
    protected String createSymbolUri(String iconName) {
        return super.createSymbolUri(dir.getParentFile().getName() + "/" + iconName);
    }

    @Override
    protected OutputStream createOutputStream(String iconName) throws IOException {
        return new FileOutputStream(new File(dir, iconName));
    }
}