Added retryable errors to DNS exception

gcloud-java-dns/pom.xml

@@ -0,0 +1,56 @@
+<?xml version="1.0"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>com.google.gcloud</groupId>
+  <artifactId>gcloud-java-dns</artifactId>
+  <packaging>jar</packaging>
+  <name>GCloud Java DNS</name>
+  <description>
+    Java idiomatic client for Google Cloud DNS.
+  </description>
+  <parent>
+    <groupId>com.google.gcloud</groupId>
+    <artifactId>gcloud-java-pom</artifactId>
+    <version>0.1.3-SNAPSHOT</version>
+  </parent>
+  <properties>
+    <site.installationModule>gcloud-java-dns</site.installationModule>
+  </properties>
+  <dependencies>
+    <dependency>
+      <groupId>${project.groupId}</groupId>
+      <artifactId>gcloud-java-core</artifactId>
+      <version>${project.version}</version>
+    </dependency>
+    <dependency>
+      <groupId>com.google.apis</groupId>
+      <artifactId>google-api-services-dns</artifactId>
+      <version>v1-rev7-1.21.0</version>
+      <scope>compile</scope>
+      <exclusions>
+        <exclusion>
+          <groupId>com.google.guava</groupId>
+          <artifactId>guava-jdk5</artifactId>
+        </exclusion>
+        <exclusion>
+          <groupId>com.google.api-client</groupId>
+          <artifactId>google-api-client</artifactId>
+        </exclusion>
+      </exclusions>
+    </dependency>
+    <dependency>
+      <groupId>junit</groupId>
+      <artifactId>junit</artifactId>
+      <version>4.12</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.easymock</groupId>
+      <artifactId>easymock</artifactId>
+      <version>3.3</version>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+</project>

gcloud-java-dns/src/main/java/com/google/gcloud/dns/AbstractOption.java

@@ -0,0 +1,70 @@
+/*
+ * 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.gcloud.dns;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+
+import com.google.common.base.MoreObjects;
+import com.google.gcloud.spi.DnsRpc;
+
+import java.io.Serializable;
+import java.util.Objects;
+
+/**
+ * A base class for options.
+ */
+abstract class AbstractOption implements Serializable {
+
+  private static final long serialVersionUID = -5912727967831484228L;
+  private final Object value;
+  private final DnsRpc.Option rpcOption;
+
+  AbstractOption(DnsRpc.Option rpcOption, Object value) {
+    this.rpcOption = checkNotNull(rpcOption);
+    this.value = value;
+  }
+
+  Object value() {
+    return value;
+  }
+
+  DnsRpc.Option rpcOption() {
+    return rpcOption;
+  }
+
+  @Override
+  public boolean equals(Object obj) {
+    if (!(obj instanceof AbstractOption)) {
+      return false;
+    }
+    AbstractOption other = (AbstractOption) obj;
+    return Objects.equals(value, other.value) && Objects.equals(rpcOption, other.rpcOption);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(value, rpcOption);
+  }
+
+  @Override
+  public String toString() {
+    return MoreObjects.toStringHelper(this)
+        .add("value", value)
+        .add("rpcOption", rpcOption)
+        .toString();
+  }
+}