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API to dynamically load Jack
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/*
 * Copyright (C) 2015 The Android Open Source Project
 *
 * 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 com.android.jack.api;

import java.util.Collection;

import javax.annotation.CheckForNull;
import javax.annotation.Nonnegative;
import javax.annotation.Nonnull;

/**
 * Provides instances of {@link JackConfig}.
 */
public interface JackProvider {
  /**
   * Creates a {@link JackConfig} instance for an interface representing a {@link JackConfig} API
   * version.
   *
   * @param  the {@link JackConfig} API interface
   * @param cls the {@link JackConfig} API {@link Class} instance
   * @return the {@link JackConfig} instance
   * @throws ConfigNotSupportedException If no implementation is found for the given interface.
   */
  @Nonnull
   T createConfig(@Nonnull Class cls) throws ConfigNotSupportedException;

  /**
   * Returns whether an interface representing a {@link JackConfig} API version is supported.
   *
   * @param  the {@link JackConfig} API interface
   * @param cls the {@link JackConfig} API {@link Class} instance
   * @return {@code true} if the configuration is supported, otherwise {@code false}
   */
  @Nonnull
   boolean isConfigSupported(@Nonnull Class cls);

  /**
   * Gives a {@link Collection} containing supported {@link JackConfig} API versions.
   * @return the supported {@link JackConfig} API versions
   */
  @Nonnull
  Collection> getSupportedConfigs();

  /**
   * Gives the version of this Jack compiler, summarized in one string (e.g. "1.1-rc1", "2.0-a2",
   * ...).
   *
   * @return the version
   */
  @Nonnull
  String getCompilerVersion();

  /**
   * Gives the release name of this Jack compiler (e.g. Arzon, Brest, ...).
   *
   * @return the release name
   */
  @Nonnull
  String getCompilerReleaseName();

  /**
   * Gives an integer value that represents the release of this Jack compiler, relative to other
   * releases.
   *
   * @return the release code
   */
  @Nonnegative
  int getCompilerReleaseCode();

  /**
   * Gives an integer value that represents the sub-release of this Jack compiler, relative to other
   * sub-releases of the same release.
   *
   * @return the sub-release code
   */
  @Nonnegative
  int getCompilerSubReleaseCode();

  /**
   * Gives the kind of sub-release of this Jack compiler.
   *
   * @return the sub-release kind
   */
  @Nonnull
  SubReleaseKind getCompilerSubReleaseKind();

  /**
   * The kind of sub-release.
   */
  public enum SubReleaseKind {
    /**
     * A sub-release from an engineering development, not tested, not in the code base repository.
     */
    ENGINEERING,
    /**
     * A sub-release that is not feature complete, not tested.
     */
    PRE_ALPHA,
    /**
     * A sub-release that is not feature complete, tested.
     */
    ALPHA,
    /**
     * A sub-release that is feature complete, tested, but likely contains known or unknown bugs.
     */
    BETA,
    /**
     * A pre-production sub-release, tested.
     */
    CANDIDATE,
    /**
     * A production and stable sub-release.
     */
    RELEASE;
  }

  /**
   * The build ID of this Jack compiler.
   * @return the build ID, or null if not available
   */
  @CheckForNull
  String getCompilerBuildId();

  /**
   * Identify the source code base of this Jack compiler.
   * @return the source code base, or null if not available
   */
  @CheckForNull
  String getCompilerSourceCodeBase();
}