/**
 * 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.storm.dependency;

import com.google.common.base.Function;
import com.google.common.collect.Lists;
import org.json.simple.JSONValue;
import org.json.simple.parser.ParseException;

import java.io.File;
import java.util.Arrays;
import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;

public class DependencyPropertiesParser {
    public List<File> parseJarsProperties(String prop) {
        if (prop.trim().isEmpty()) {
            // handle no input
            return Collections.emptyList();
        }

        List<String> dependencies = Arrays.asList(prop.split(","));
        return Lists.transform(dependencies, new Function<String, File>() {
            @Override
            public File apply(String filePath) {
                return new File(filePath);
            }
        });
    }

    public Map<String, File> parseArtifactsProperties(String prop) {
        try {
            Map<String, String> parsed = (Map<String, String>) JSONValue.parseWithException(prop);
            Map<String, File> packages = new LinkedHashMap<>(parsed.size());
            for (Map.Entry<String, String> artifactToFilePath : parsed.entrySet()) {
                packages.put(artifactToFilePath.getKey(), new File(artifactToFilePath.getValue()));
            }

            return packages;
        } catch (ParseException e) {
            throw new RuntimeException(e);
        }
    }
}