com.google.api.codegen.config.ApiDefaultsConfig.java Source code

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Here is the source code for com.google.api.codegen.config.ApiDefaultsConfig.java

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/* Copyright 2018 Google LLC
 *
 * 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
 *
 *      https://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.google.api.codegen.config;

import com.google.api.codegen.ReleaseLevel;
import com.google.api.codegen.common.TargetLanguage;
import com.google.auto.value.AutoValue;
import com.google.common.io.Resources;
import java.io.IOException;
import java.net.URL;
import java.nio.charset.StandardCharsets;
import java.util.Map;
import org.yaml.snakeyaml.Yaml;

/** This class holds defaults which are mostly used for packaging files. */
@AutoValue
public abstract class ApiDefaultsConfig {

    /** The author of the client library. */
    public abstract String author();

    /** The email of the author of the client library. */
    public abstract String email();

    /** The homepage of the client library. */
    public abstract String homepage();

    /** The name of the license of the client library. */
    public abstract String licenseName();

    /** The development status of the client library. Configured per language. */
    public ReleaseLevel releaseLevel() {
        return ReleaseLevel.ALPHA;
    }

    protected abstract Map<TargetLanguage, VersionBound> generatedNonGAPackageVersionBound();

    private static Builder newBuilder() {
        return new AutoValue_ApiDefaultsConfig.Builder();
    }

    @AutoValue.Builder
    protected abstract static class Builder {

        abstract Builder author(String val);

        abstract Builder email(String val);

        abstract Builder homepage(String val);

        abstract Builder licenseName(String val);

        abstract Builder generatedNonGAPackageVersionBound(Map<TargetLanguage, VersionBound> val);

        abstract ApiDefaultsConfig build();
    }

    @SuppressWarnings("unchecked")
    private static ApiDefaultsConfig createFromString(String yamlContents) {
        Yaml yaml = new Yaml();
        Map<String, Object> configMap = (Map<String, Object>) yaml.load(yamlContents);

        Builder builder = newBuilder().author((String) configMap.get("author"))
                .email((String) configMap.get("email")).homepage((String) configMap.get("homepage"))
                .licenseName((String) configMap.get("license"))
                .generatedNonGAPackageVersionBound(Configs.createVersionMap(
                        (Map<String, Map<String, String>>) configMap.get("generated_package_version")));
        return builder.build();
    }

    public static ApiDefaultsConfig load() throws IOException {
        URL apiDefaultsUrl = ApiDefaultsConfig.class
                .getResource("/com/google/api/codegen/packaging/api_defaults.yaml");
        String contents = Resources.toString(apiDefaultsUrl, StandardCharsets.UTF_8);
        return createFromString(contents);
    }
}