1 files changed, 90 insertions, 0 deletions
diff --git a/src/main/java/com/google/devtools/build/lib/skyframe/ConfigurationFragmentValue.java b/src/main/java/com/google/devtools/build/lib/skyframe/ConfigurationFragmentValue.java
new file mode 100644
index 0000000000..cc07216a54
--- /dev/null
+++ b/src/main/java/com/google/devtools/build/lib/skyframe/ConfigurationFragmentValue.java
@@ -0,0 +1,90 @@
+// 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.devtools.build.lib.analysis.config.BuildConfiguration;
+import com.google.devtools.build.lib.analysis.config.BuildConfiguration.Fragment;
+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.skyframe.SkyKey;
+import com.google.devtools.build.skyframe.SkyValue;
+
+import java.io.Serializable;
+import java.util.Objects;
+
+import javax.annotation.Nullable;
+
+/**
+ * A Skyframe node representing a build configuration fragment.
+ */
+@Immutable
+@ThreadSafe
+public class ConfigurationFragmentValue implements SkyValue {
+  
+  @Nullable
+  private final BuildConfiguration.Fragment fragment;
+
+  ConfigurationFragmentValue(BuildConfiguration.Fragment fragment) {
+    this.fragment = fragment;
+  }
+
+  public BuildConfiguration.Fragment getFragment() {
+    return fragment;
+  }
+  
+  @ThreadSafe
+  public static SkyKey key(BuildOptions buildOptions, Class<? extends Fragment> fragmentType) {
+    return new SkyKey(SkyFunctions.CONFIGURATION_FRAGMENT,
+        new ConfigurationFragmentKey(buildOptions, fragmentType));
+  }
+  
+  static final class ConfigurationFragmentKey implements Serializable {
+    private final BuildOptions buildOptions;
+    private final Class<? extends Fragment> fragmentType;
+    
+    public ConfigurationFragmentKey(BuildOptions buildOptions,
+        Class<? extends Fragment> fragmentType) {
+      this.buildOptions = Preconditions.checkNotNull(buildOptions);
+      this.fragmentType = Preconditions.checkNotNull(fragmentType);      
+    }
+    
+    public BuildOptions getBuildOptions() {
+      return buildOptions;
+    }
+    
+    public Class<? extends Fragment> getFragmentType() {
+      return fragmentType;
+    }
+    
+    @Override
+    public boolean equals(Object o) {
+      if (this == o) {
+        return true;
+      }
+      if (!(o instanceof ConfigurationFragmentKey)) {
+        return false;
+      }
+      ConfigurationFragmentKey confObject = (ConfigurationFragmentKey) o;
+      return Objects.equals(fragmentType, confObject.fragmentType)
+          && Objects.equals(buildOptions, confObject.buildOptions);
+    }
+
+    @Override
+    public int hashCode() {
+      return Objects.hash(buildOptions, fragmentType);
+    }
+  }
+}