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Merge pull request cbeust#288 from garydgregory/InetAddressConverter
Adds a class InetAddressConverter that implements IStringConverter<InetAddress>
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40 changes: 40 additions & 0 deletions
40
src/main/java/com/beust/jcommander/converters/InetAddressConverter.java
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/** | ||
* Copyright (C) 2010 the original author or authors. | ||
* See the notice.md file distributed with this work for additional | ||
* information regarding copyright ownership. | ||
* | ||
* 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. | ||
*/ | ||
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package com.beust.jcommander.converters; | ||
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import java.net.InetAddress; | ||
import java.net.UnknownHostException; | ||
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import com.beust.jcommander.IStringConverter; | ||
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/** | ||
* Converts {@code String}s to {@code InetAddress}'. | ||
*/ | ||
public class InetAddressConverter implements IStringConverter<InetAddress> { | ||
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@Override | ||
public InetAddress convert(String host) { | ||
try { | ||
return InetAddress.getByName(host); | ||
} catch (UnknownHostException e) { | ||
throw new IllegalArgumentException(host, e); | ||
} | ||
} | ||
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} |
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src/test/java/com/beust/jcommander/converters/InetAddressConverterTest.java
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/** | ||
* Copyright (C) 2010 the original author or authors. | ||
* See the notice.md file distributed with this work for additional | ||
* information regarding copyright ownership. | ||
* | ||
* 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. | ||
*/ | ||
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package com.beust.jcommander.converters; | ||
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import java.net.InetAddress; | ||
import java.net.UnknownHostException; | ||
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import org.testng.Assert; | ||
import org.testng.annotations.Test; | ||
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@Test | ||
public class InetAddressConverterTest { | ||
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private static final InetAddressConverter INET_ADDRESS_CONVERTER = new InetAddressConverter(); | ||
private static final InetAddress LOOPBACK_ADDRESS = InetAddress.getLoopbackAddress(); | ||
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@Test | ||
public void testLocalhost() throws UnknownHostException { | ||
test("localhost"); | ||
} | ||
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@Test | ||
public void testLocalhostAddress() throws UnknownHostException { | ||
test("127.0.0.1"); | ||
} | ||
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@Test(expectedExceptions = IllegalArgumentException.class) | ||
public void testGargabeInput() throws UnknownHostException { | ||
test("!@#$%"); | ||
} | ||
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@Test | ||
public void testEmptyInput() throws UnknownHostException { | ||
test(""); | ||
} | ||
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@Test(expectedExceptions = IllegalArgumentException.class) | ||
public void testBlankInput() throws UnknownHostException { | ||
test(" "); | ||
} | ||
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private void test(String string) throws UnknownHostException { | ||
Assert.assertEquals(INET_ADDRESS_CONVERTER.convert(string), LOOPBACK_ADDRESS); | ||
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} | ||
} |