ConsumerOperationParameters.java 文件源码

public Builder setLaunchables(Iterable<? extends Launchable> launchables) {
    Set<String> taskPaths = new LinkedHashSet<String>();
    List<InternalLaunchable> launchablesParams = Lists.newArrayList();
    for (Launchable launchable : launchables) {
        Object original = new ProtocolToModelAdapter().unpack(launchable);
        if (original instanceof InternalLaunchable) {
            // A launchable created by the provider - just hand it back
            launchablesParams.add((InternalLaunchable) original);
        } else if (original instanceof TaskListingLaunchable) {
            // A launchable synthesized by the consumer - unpack it into a set of task names
            taskPaths.addAll(((TaskListingLaunchable) original).getTaskNames());
        } else if (launchable instanceof Task) {
            // A task created by a provider that does not understand launchables
            taskPaths.add(((Task) launchable).getPath());
        } else {
            throw new GradleException("Only Task or TaskSelector instances are supported: "
                + (launchable != null ? launchable.getClass() : "null"));
        }
    }
    // Tasks are ignored by providers if launchables is not null
    this.launchables = launchablesParams.isEmpty() ? null : launchablesParams;
    tasks = Lists.newArrayList(taskPaths);
    return this;
}