Import code from internal repository to git

java/com/google/domain/registry/model/smd/RemoveWhitespaceTextAdapter.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 com.google.appengine.api.datastore.Text;
+import com.google.common.base.CharMatcher;
+
+import javax.xml.bind.annotation.adapters.XmlAdapter;
+
+/**
+ * {@link XmlAdapter} which removes all whitespace from a string and then converts the result a
+ * {@link Text} object.
+ */
+public class RemoveWhitespaceTextAdapter extends XmlAdapter<String, Text> {
+
+  private static final CharMatcher WHITESPACE = CharMatcher.anyOf(" \t\r\n");
+
+  @Override
+  public Text unmarshal(String value) {
+    return (value == null) ? null : new Text(WHITESPACE.removeFrom(value));
+  }
+
+  @Override
+  public String marshal(Text t) {
+    return (t == null) ? null : t.getValue();
+  }
+}