Update from Google.

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MOE_MIGRATED_REVID=85702957

1 files changed, 88 insertions, 0 deletions

diff --git a/src/main/java/com/google/devtools/build/lib/analysis/LicensesProvider.java b/src/main/java/com/google/devtools/build/lib/analysis/LicensesProvider.java
new file mode 100644
index 0000000000..548a1f28bf
--- /dev/null
+++ b/src/main/java/com/google/devtools/build/lib/analysis/LicensesProvider.java
@@ -0,0 +1,88 @@
+// 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.analysis;
+
+import com.google.common.base.Preconditions;
+import com.google.devtools.build.lib.analysis.config.BuildConfiguration;
+import com.google.devtools.build.lib.collect.nestedset.NestedSet;
+import com.google.devtools.build.lib.packages.License;
+import com.google.devtools.build.lib.syntax.Label;
+
+import java.util.Objects;
+
+/**
+ * A {@link ConfiguredTarget} that has licensed targets in its transitive closure.
+ */
+public interface LicensesProvider extends TransitiveInfoProvider {
+
+  /**
+   * The set of label - license associations in the transitive closure.
+   *
+   * <p>Always returns an empty set if {@link BuildConfiguration#checkLicenses()} is false.
+   */
+  NestedSet<TargetLicense> getTransitiveLicenses();
+
+  /**
+   * License association for a particular target.
+   */
+  public static final class TargetLicense {
+
+    private final Label label;
+    private final License license;
+
+    public TargetLicense(Label label, License license) {
+      Preconditions.checkNotNull(label);
+      Preconditions.checkNotNull(license);
+      this.label = label;
+      this.license = license;
+    }
+
+    /**
+     * Returns the label of the associated target.
+     */
+    public Label getLabel() {
+      return label;
+    }
+
+    /**
+     * Returns the license for the target.
+     */
+    public License getLicense() {
+      return license;
+    }
+
+    @Override
+    public int hashCode() {
+      return Objects.hash(label, license);
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+      if (this == obj) {
+        return true;
+      }
+      if (!(obj instanceof TargetLicense)) {
+        return false;
+      }
+      TargetLicense other = (TargetLicense) obj;
+      return label.equals(other.label) && license.equals(other.license);
+    }
+
+    @Override
+    public String toString() {
+      return label + " => " + license;
+    }
+  }
+}