1 files changed, 72 insertions, 0 deletions
diff --git a/libphonenumber/src/com/google/i18n/phonenumbers/metadata/source/MetadataSourceImpl.java b/libphonenumber/src/com/google/i18n/phonenumbers/metadata/source/MetadataSourceImpl.java
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index 00000000..c3d1c736
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+++ b/libphonenumber/src/com/google/i18n/phonenumbers/metadata/source/MetadataSourceImpl.java
@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2022 The Libphonenumber Authors
+ *
+ * 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.i18n.phonenumbers.metadata.source;
+
+import com.google.i18n.phonenumbers.MetadataLoader;
+import com.google.i18n.phonenumbers.Phonemetadata.PhoneMetadata;
+import com.google.i18n.phonenumbers.internal.GeoEntityUtility;
+import com.google.i18n.phonenumbers.metadata.init.MetadataParser;
+
+/**
+ * Implementation of {@link MetadataSource} guarded by {@link MetadataBootstrappingGuard}.
+ *
+ * <p>By default, a {@link BlockingMetadataBootstrappingGuard} will be used, but any custom
+ * implementation can be injected.
+ */
+public final class MetadataSourceImpl implements MetadataSource {
+
+  private final PhoneMetadataFileNameProvider phoneMetadataFileNameProvider;
+  private final MetadataBootstrappingGuard<CompositeMetadataContainer> bootstrappingGuard;
+
+  public MetadataSourceImpl(
+      PhoneMetadataFileNameProvider phoneMetadataFileNameProvider,
+      MetadataBootstrappingGuard<CompositeMetadataContainer> bootstrappingGuard) {
+    this.phoneMetadataFileNameProvider = phoneMetadataFileNameProvider;
+    this.bootstrappingGuard = bootstrappingGuard;
+  }
+
+  public MetadataSourceImpl(
+      PhoneMetadataFileNameProvider phoneMetadataFileNameProvider,
+      MetadataLoader metadataLoader,
+      MetadataParser metadataParser) {
+    this(
+        phoneMetadataFileNameProvider,
+        new BlockingMetadataBootstrappingGuard<>(
+            metadataLoader, metadataParser, new CompositeMetadataContainer()));
+  }
+
+  @Override
+  public PhoneMetadata getMetadataForNonGeographicalRegion(int countryCallingCode) {
+    if (GeoEntityUtility.isGeoEntity(countryCallingCode)) {
+      throw new IllegalArgumentException(
+          countryCallingCode + " calling code belongs to a geo entity");
+    }
+    return bootstrappingGuard
+        .getOrBootstrap(phoneMetadataFileNameProvider.getFor(countryCallingCode))
+        .getMetadataBy(countryCallingCode);
+  }
+
+  @Override
+  public PhoneMetadata getMetadataForRegion(String regionCode) {
+    if (!GeoEntityUtility.isGeoEntity(regionCode)) {
+      throw new IllegalArgumentException(regionCode + " region code is a non-geo entity");
+    }
+    return bootstrappingGuard
+        .getOrBootstrap(phoneMetadataFileNameProvider.getFor(regionCode))
+        .getMetadataBy(regionCode);
+  }
+}