1 files changed, 100 insertions, 0 deletions
diff --git a/src/main/java/com/google/devtools/build/lib/skyframe/ConfigurationCollectionValue.java b/src/main/java/com/google/devtools/build/lib/skyframe/ConfigurationCollectionValue.java
new file mode 100644
index 0000000000..30e4fd7317
--- /dev/null
+++ b/src/main/java/com/google/devtools/build/lib/skyframe/ConfigurationCollectionValue.java
@@ -0,0 +1,100 @@
+// Copyright 2014 Google Inc. 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.skyframe;
+
+import com.google.common.base.Preconditions;
+import com.google.common.collect.ImmutableSet;
+import com.google.devtools.build.lib.analysis.config.BuildConfigurationCollection;
+import com.google.devtools.build.lib.analysis.config.BuildOptions;
+import com.google.devtools.build.lib.concurrent.ThreadSafety.Immutable;
+import com.google.devtools.build.lib.concurrent.ThreadSafety.ThreadSafe;
+import com.google.devtools.build.lib.packages.Package;
+import com.google.devtools.build.skyframe.SkyKey;
+import com.google.devtools.build.skyframe.SkyValue;
+
+import java.io.Serializable;
+import java.util.Objects;
+import java.util.Set;
+
+/**
+ * A Skyframe value representing a build configuration collection.
+ */
+@Immutable
+@ThreadSafe
+public class ConfigurationCollectionValue implements SkyValue {
+
+  private final BuildConfigurationCollection configurationCollection;
+  private final ImmutableSet<Package> configurationPackages;
+
+  ConfigurationCollectionValue(BuildConfigurationCollection configurationCollection,
+      Set<Package> configurationPackages) {
+    this.configurationCollection = Preconditions.checkNotNull(configurationCollection);
+    this.configurationPackages = ImmutableSet.copyOf(configurationPackages);
+  }
+
+  public BuildConfigurationCollection getConfigurationCollection() {
+    return configurationCollection;
+  }
+
+  /**
+   * Returns set of packages required for configuration.
+   */
+  public Set<Package> getConfigurationPackages() {
+    return configurationPackages;
+  }
+
+  @ThreadSafe
+  public static SkyKey key(BuildOptions buildOptions, ImmutableSet<String> multiCpu) {
+    return new SkyKey(SkyFunctions.CONFIGURATION_COLLECTION, 
+        new ConfigurationCollectionKey(buildOptions, multiCpu));
+  }
+
+  static final class ConfigurationCollectionKey implements Serializable {
+    private final BuildOptions buildOptions;
+    private final ImmutableSet<String> multiCpu;
+    private final int hashCode;
+
+    public ConfigurationCollectionKey(BuildOptions buildOptions, ImmutableSet<String> multiCpu) {
+      this.buildOptions = Preconditions.checkNotNull(buildOptions);
+      this.multiCpu = Preconditions.checkNotNull(multiCpu);
+      this.hashCode = Objects.hash(buildOptions, multiCpu);
+    }
+
+    public BuildOptions getBuildOptions() {
+      return buildOptions;
+    }
+
+    public ImmutableSet<String> getMultiCpu() {
+      return multiCpu;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+      if (this == o) {
+        return true;
+      }
+      if (!(o instanceof ConfigurationCollectionKey)) {
+        return false;
+      }
+      ConfigurationCollectionKey confObject = (ConfigurationCollectionKey) o;
+      return Objects.equals(multiCpu, confObject.multiCpu)
+          && Objects.equals(buildOptions, confObject.buildOptions);
+    }
+
+    @Override
+    public int hashCode() {
+      return hashCode;
+    }
+  }
+}