1 files changed, 53 insertions, 0 deletions
diff --git a/src/main/java/com/google/devtools/build/lib/rules/java/JavaToolchain.java b/src/main/java/com/google/devtools/build/lib/rules/java/JavaToolchain.java
new file mode 100644
index 0000000000..65ed97a8e8
--- /dev/null
+++ b/src/main/java/com/google/devtools/build/lib/rules/java/JavaToolchain.java
@@ -0,0 +1,53 @@
+// 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.rules.java;
+
+import com.google.common.collect.ImmutableList;
+import com.google.devtools.build.lib.actions.Artifact;
+import com.google.devtools.build.lib.analysis.ConfiguredTarget;
+import com.google.devtools.build.lib.analysis.RuleConfiguredTargetBuilder;
+import com.google.devtools.build.lib.analysis.RuleContext;
+import com.google.devtools.build.lib.analysis.Runfiles;
+import com.google.devtools.build.lib.analysis.RunfilesProvider;
+import com.google.devtools.build.lib.collect.nestedset.NestedSetBuilder;
+import com.google.devtools.build.lib.collect.nestedset.Order;
+import com.google.devtools.build.lib.packages.Type;
+import com.google.devtools.build.lib.rules.RuleConfiguredTargetFactory;
+
+import java.util.List;
+
+/**
+ * Implementation for the {@code java_toolchain} rule.
+ */
+public final class JavaToolchain implements RuleConfiguredTargetFactory {
+
+  @Override
+  public ConfiguredTarget create(RuleContext ruleContext) {
+    final String source = ruleContext.attributes().get("source_version", Type.STRING);
+    final String target = ruleContext.attributes().get("target_version", Type.STRING);
+    final String encoding = ruleContext.attributes().get("encoding", Type.STRING);
+    final List<String> xlint = ruleContext.attributes().get("xlint", Type.STRING_LIST);
+    final List<String> misc = ruleContext.attributes().get("misc", Type.STRING_LIST);
+    final JavaConfiguration configuration = ruleContext.getFragment(JavaConfiguration.class);
+    JavaToolchainProvider provider = new JavaToolchainProvider(source, target, encoding,
+        ImmutableList.copyOf(xlint), ImmutableList.copyOf(misc),
+        configuration.getDefaultJavacFlags());
+    RuleConfiguredTargetBuilder builder = new RuleConfiguredTargetBuilder(ruleContext)
+        .add(JavaToolchainProvider.class, provider)
+        .setFilesToBuild(new NestedSetBuilder<Artifact>(Order.STABLE_ORDER).build())
+        .add(RunfilesProvider.class, RunfilesProvider.simple(Runfiles.EMPTY));
+
+    return builder.build();
+  }
+}