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// Copyright 2014 The Bazel Authors. All rights reserved.
//
// 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.google.devtools.build.lib.actions;
import com.google.auto.value.AutoValue;
import com.google.common.collect.ImmutableList;
import com.google.devtools.build.lib.cmdline.Label;
import com.google.devtools.build.lib.concurrent.ThreadSafety.Immutable;
import com.google.devtools.build.lib.events.Location;
import com.google.devtools.build.lib.packages.AspectDescriptor;
import com.google.devtools.build.lib.util.Preconditions;
import javax.annotation.Nullable;
/**
* Contains metadata used for reporting the progress and status of an action.
*
* <p>Morally an action's owner is the RuleConfiguredTarget instance responsible for creating it,
* but to avoid storing heavyweight analysis objects in actions, and to avoid coupling between the
* analysis and actions packages, the RuleConfiguredTarget provides an instance of this class.
*/
@AutoValue
@Immutable
public abstract class ActionOwner {
/** An action owner for special cases. Usage is strongly discouraged. */
public static final ActionOwner SYSTEM_ACTION_OWNER =
ActionOwner.create(null, ImmutableList.<AspectDescriptor>of(),
null, "system", "empty target kind", "system", null);
public static ActionOwner create(
@Nullable Label label,
ImmutableList<AspectDescriptor> aspectDescriptors,
@Nullable Location location,
@Nullable String mnemonic,
@Nullable String targetKind,
String configurationChecksum,
@Nullable String additionalProgressInfo) {
return new AutoValue_ActionOwner(
location,
label,
aspectDescriptors,
mnemonic,
Preconditions.checkNotNull(configurationChecksum),
targetKind,
additionalProgressInfo);
}
/** Returns the location of this ActionOwner, if any; null otherwise. */
@Nullable
public abstract Location getLocation();
/** Returns the label for this ActionOwner, if any; null otherwise. */
@Nullable
public abstract Label getLabel();
public abstract ImmutableList<AspectDescriptor> getAspectDescriptors();
/** Returns the configuration's mnemonic. */
@Nullable
public abstract String getConfigurationMnemonic();
/**
* Returns the short cache key for the configuration of the action owner.
*
* <p>Special action owners that are not targets can return any string here. If the underlying
* configuration is null, this should return "null".
*/
public abstract String getConfigurationChecksum();
/** Returns the target kind (rule class name) for this ActionOwner, if any; null otherwise. */
@Nullable
public abstract String getTargetKind();
/**
* Returns additional information that should be displayed in progress messages, or {@code null}
* if nothing should be added.
*/
@Nullable
abstract String getAdditionalProgressInfo();
ActionOwner() {}
}
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