com.spotify.heroic.metadata.elasticsearch.ElasticsearchMetadataUtils.java Source code

Introduction

Here is the source code for com.spotify.heroic.metadata.elasticsearch.ElasticsearchMetadataUtils.java

Source

/*
 * Copyright (c) 2015 Spotify AB.
 *
 * 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 com.spotify.heroic.metadata.elasticsearch;

import com.google.common.collect.ImmutableMap;
import java.io.IOException;
import java.io.InputStream;
import java.util.Map;
import org.elasticsearch.common.xcontent.NamedXContentRegistry;
import org.elasticsearch.common.xcontent.json.JsonXContent;

public class ElasticsearchMetadataUtils {
    public static Map<String, Object> loadJsonResource(String path) {
        final String fullPath = ElasticsearchMetadataModule.class.getPackage().getName() + "/" + path;

        try (final InputStream input = ElasticsearchMetadataModule.class.getClassLoader()
                .getResourceAsStream(fullPath)) {
            if (input == null) {
                return ImmutableMap.of();
            }

            return JsonXContent.jsonXContent.createParser(NamedXContentRegistry.EMPTY, input).map();
        } catch (final IOException e) {
            throw new RuntimeException("Failed to load resource: " + path, e);
        }
    }
}