Import code from internal repository to git

java/com/google/domain/registry/model/smd/EncodedSignedMark.java

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+// Copyright 2016 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.domain.registry.model.smd;
+
+import static com.google.common.base.MoreObjects.firstNonNull;
+import static com.google.common.io.BaseEncoding.base64;
+
+import com.google.appengine.api.datastore.Text;
+import com.google.domain.registry.model.ImmutableObject;
+
+import com.googlecode.objectify.annotation.Embed;
+
+import javax.xml.bind.annotation.XmlAttribute;
+import javax.xml.bind.annotation.XmlRootElement;
+import javax.xml.bind.annotation.XmlValue;
+import javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter;
+
+/**
+ * Encoded data representation of a {@link SignedMark} object.
+ *
+ * @see <a href="http://tools.ietf.org/html/draft-lozano-tmch-smd-02#section-2.4">
+ *       draft-lozano-tmch-smd-02 § 2.4</a>
+ */
+@Embed
+@XmlRootElement(name = "encodedSignedMark")
+public class EncodedSignedMark extends ImmutableObject implements AbstractSignedMark {
+
+  private static final String ENCODING_DEFAULT = "base64";
+
+  /** Encoding used for contained data. Default is {@value #ENCODING_DEFAULT}. */
+  @XmlAttribute
+  String encoding;
+
+  /**
+   * Encoded data. This is stored in a Text field rather than a String because Objectify cannot
+   * autoconvert Strings greater than 500 characters to Text within {@link Embed} collections.
+   */
+  @XmlValue
+  @XmlJavaTypeAdapter(RemoveWhitespaceTextAdapter.class)
+  Text encodedData;
+
+  public String getEncoding() {
+    return firstNonNull(encoding, ENCODING_DEFAULT);
+  }
+
+  public String getEncodedData() {
+    return encodedData == null ? "" : encodedData.getValue();
+  }
+
+  public static EncodedSignedMark create(String encoding, String encodedData) {
+    EncodedSignedMark instance = new EncodedSignedMark();
+    instance.encoding = encoding;
+    instance.encodedData = new Text(encodedData);
+    return instance;
+  }
+
+  public byte[] getBytes() {
+    try {
+      return base64().decode(getEncodedData());
+    } catch (IllegalArgumentException e) {
+      throw new IllegalStateException(e);  // Turn e into a runtime exception.
+    }
+  }
+}