1 files changed, 79 insertions, 0 deletions
diff --git a/java/com/google/gerrit/common/data/SubmitRequirement.java b/java/com/google/gerrit/common/data/SubmitRequirement.java
new file mode 100644
index 0000000000..0c978ca539
--- /dev/null
+++ b/java/com/google/gerrit/common/data/SubmitRequirement.java
@@ -0,0 +1,79 @@
+// Copyright (C) 2018 The Android Open Source Project
+//
+// 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.gerrit.common.data;
+
+import static com.google.common.base.Preconditions.checkState;
+
+import com.google.auto.value.AutoValue;
+import com.google.common.annotations.GwtIncompatible;
+import com.google.common.base.CharMatcher;
+import com.google.common.collect.ImmutableMap;
+import java.util.Map;
+
+/** Describes a requirement to submit a change. */
+@GwtIncompatible
+@AutoValue
+@AutoValue.CopyAnnotations
+public abstract class SubmitRequirement {
+  private static final CharMatcher TYPE_MATCHER =
+      CharMatcher.inRange('a', 'z')
+          .or(CharMatcher.inRange('A', 'Z'))
+          .or(CharMatcher.inRange('0', '9'))
+          .or(CharMatcher.anyOf("-_"));
+
+  @AutoValue.Builder
+  public abstract static class Builder {
+    public abstract Builder setType(String value);
+
+    public abstract Builder setFallbackText(String value);
+
+    public Builder setData(Map<String, String> value) {
+      return setData(ImmutableMap.copyOf(value));
+    }
+
+    public Builder addCustomValue(String key, String value) {
+      dataBuilder().put(key, value);
+      return this;
+    }
+
+    public SubmitRequirement build() {
+      SubmitRequirement requirement = autoBuild();
+      checkState(
+          validateType(requirement.type()),
+          "SubmitRequirement's type contains non alphanumerical symbols.");
+      return requirement;
+    }
+
+    abstract Builder setData(ImmutableMap<String, String> value);
+
+    abstract ImmutableMap.Builder<String, String> dataBuilder();
+
+    abstract SubmitRequirement autoBuild();
+  }
+
+  public abstract String fallbackText();
+
+  public abstract String type();
+
+  public abstract ImmutableMap<String, String> data();
+
+  public static Builder builder() {
+    return new AutoValue_SubmitRequirement.Builder();
+  }
+
+  private static boolean validateType(String type) {
+    return TYPE_MATCHER.matchesAllOf(type);
+  }
+}