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c458c05801
The dark lord Gosling designed the Java package naming system so that ownership flows from the DNS system. Since we own the domain name registry.google, it seems only appropriate that we should use google.registry as our package name.
105 lines
4 KiB
Java
105 lines
4 KiB
Java
// Copyright 2016 The Domain Registry Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package google.registry.tools;
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import static com.google.common.base.CaseFormat.LOWER_UNDERSCORE;
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import static com.google.common.base.CaseFormat.UPPER_CAMEL;
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import static com.google.common.reflect.Reflection.getPackageName;
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import static com.google.common.truth.Truth.assertWithMessage;
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import com.google.common.base.Joiner;
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import com.google.common.collect.ImmutableSet;
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import com.google.common.collect.Sets;
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import com.google.common.reflect.ClassPath;
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import com.google.common.reflect.ClassPath.ClassInfo;
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import com.google.common.truth.Expect;
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import google.registry.tools.Command.GtechCommand;
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import org.junit.Before;
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import org.junit.Rule;
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import org.junit.Test;
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import org.junit.rules.ExpectedException;
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import org.junit.runner.RunWith;
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import org.junit.runners.JUnit4;
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import java.io.IOException;
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import java.lang.reflect.Modifier;
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import java.util.Map;
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import java.util.Set;
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/** Unit tests for {@link GtechTool}. */
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@RunWith(JUnit4.class)
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public class GtechToolTest {
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@Rule
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public final ExpectedException thrown = ExpectedException.none();
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@Rule
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public final Expect expect = Expect.create();
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@Before
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public void init() {
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RegistryToolEnvironment.UNITTEST.setup();
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}
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@Test
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public void testThatAllCommandsAreInCliOptions() throws Exception {
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Set<Class<? extends GtechCommand>> commandMapClasses =
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ImmutableSet.copyOf(GtechTool.COMMAND_MAP.values());
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Set<Class<? extends GtechCommand>> commandsWithoutCliInvokers =
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Sets.difference(getAllCommandClasses(), commandMapClasses);
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String errorMsg =
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"These Command classes are missing from GtechTool.COMMAND_MAP: "
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+ Joiner.on(", ").join(commandsWithoutCliInvokers);
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assertWithMessage(errorMsg).that(commandsWithoutCliInvokers).isEmpty();
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}
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@Test
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public void testThatCommandNamesAreDerivedFromClassNames() throws Exception {
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for (Map.Entry<String, ? extends Class<? extends Command>> commandEntry :
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GtechTool.COMMAND_MAP.entrySet()) {
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String className = commandEntry.getValue().getSimpleName();
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expect.that(commandEntry.getKey())
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// JCommander names should match the class name, up to "Command" and case formatting.
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.isEqualTo(UPPER_CAMEL.to(LOWER_UNDERSCORE, className.replaceFirst("Command$", "")));
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}
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}
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/**
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* Gets the set of all non-abstract classes implementing the {@link GtechCommand} interface
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* (abstract class and interface subtypes of Command aren't expected to have cli commands). Note
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* that this also filters out HelpCommand, which has special handling in {@link RegistryCli} and
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* isn't in the command map.
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*
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* @throws IOException if reading the classpath resources fails.
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*/
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@SuppressWarnings("unchecked")
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private ImmutableSet<Class<? extends GtechCommand>> getAllCommandClasses() throws IOException {
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ImmutableSet.Builder<Class<? extends GtechCommand>> builder = new ImmutableSet.Builder<>();
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for (ClassInfo classInfo : ClassPath
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.from(getClass().getClassLoader())
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.getTopLevelClasses(getPackageName(getClass()))) {
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Class<?> clazz = classInfo.load();
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if (GtechCommand.class.isAssignableFrom(clazz)
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&& !Modifier.isAbstract(clazz.getModifiers())
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&& !Modifier.isInterface(clazz.getModifiers())
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&& !clazz.equals(HelpCommand.class)) {
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builder.add((Class<? extends GtechCommand>) clazz);
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}
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}
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return builder.build();
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}
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}
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