org.javamoney.moneta.convert.imf.IMFRemoteSearch Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of moneta-convert-imf Show documentation
The newest version!
/*
  Copyright (c) 2012, 2021, Werner Keil and others by the @author tag.

  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 org.javamoney.moneta.convert.imf;

import java.io.InputStream;
import java.time.YearMonth;
import java.util.ArrayList;
import java.util.EnumMap;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import java.util.logging.Level;
import java.util.logging.Logger;

import org.javamoney.moneta.convert.imf.IMFRemoteSearchCallable.IMFRemoteSearchResult;

public enum IMFRemoteSearch {
	INSTANCE;

	private static final Logger LOG = Logger.getLogger(IMFRemoteSearch.class.getName());

	private final ExecutorService executor = Executors.newCachedThreadPool();

	public Map getResources(YearMonth yearMonth, String userAgent) {
		Objects.requireNonNull(yearMonth);
		if(userAgent==null){
			userAgent = IMFAbstractRateProvider.DEFAULT_USER_AGENT;
		}

		Map map = new EnumMap<>(IMFHistoricalType.class);
				try {
			List> results = new ArrayList<>(2);
			for (IMFHistoricalType type : IMFHistoricalType.values()) {
				results.add(executor.submit(new IMFRemoteSearchCallable(type,
						yearMonth, userAgent)));
			}

			for (Future result : results) {
				IMFRemoteSearchResult imfRemoteSearchResult = result.get();
				if (Objects.nonNull(imfRemoteSearchResult)) {
					map.put(imfRemoteSearchResult.getType(),
							imfRemoteSearchResult.getStream());
				}
			}
		} catch (Exception exception) {
			LOG.log(Level.WARNING, "Failed to load resource input for find resource from date " + yearMonth, exception);
		}
		return map;
	}
}