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https://github.com/google/nomulus.git
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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.
49 lines
1.7 KiB
Java
49 lines
1.7 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.params;
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import com.beust.jcommander.IParameterValidator;
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import com.beust.jcommander.IStringConverter;
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import com.beust.jcommander.ParameterException;
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/** Base class for parameters that do both conversion and validation (reduces boilerplate). */
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public abstract class ParameterConverterValidator<T>
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implements IStringConverter<T>, IParameterValidator {
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private final String messageForInvalid;
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ParameterConverterValidator() {
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this("Validation failed.");
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}
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ParameterConverterValidator(String messageForInvalid) {
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this.messageForInvalid = messageForInvalid;
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}
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@Override
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public abstract T convert(String arg0); // Redefine so non-null package annotation kicks in.
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@Override
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public void validate(String name, String value) throws ParameterException {
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try {
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convert(value);
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} catch (IllegalArgumentException e) {
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ParameterException pe =
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new ParameterException(String.format("%s=%s %s", name, value, messageForInvalid));
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pe.initCause(e);
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throw pe;
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}
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}
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}
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