| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.apache.beam.sdk.coders; |
| |
| import java.lang.reflect.Field; |
| import java.lang.reflect.Modifier; |
| import java.util.List; |
| import org.apache.beam.sdk.util.CoderUtils; |
| import org.apache.beam.vendor.guava.v20_0.com.google.common.base.Joiner; |
| import org.apache.beam.vendor.guava.v20_0.com.google.common.collect.Lists; |
| |
| /** |
| * A command-line utility for printing the base-64 encodings of test values, for generating exact |
| * wire format tests. |
| * |
| * <p>For internal use only. |
| * |
| * <p>Example invocation via maven: {@code mvn test-compile exec:java \ -Dexec.classpathScope=test \ |
| * -Dexec.mainClass=org.apache.beam.sdk.coders.PrintBase64Encodings |
| * -Dexec.args='org.apache.beam.sdk.coders.BigEndianIntegerCoderTest.TEST_CODER \ |
| * org.apache.beam.sdk.coders.BigEndianIntegerCoderTest.TEST_VALUES' } |
| */ |
| public class PrintBase64Encodings { |
| |
| /** Gets a field even if it is private, which the test data generally will be. */ |
| private static Field getField(Class<?> clazz, String fieldName) throws Exception { |
| for (Field field : clazz.getDeclaredFields()) { |
| if (field.getName().equals(fieldName)) { |
| if (!Modifier.isPublic(field.getModifiers())) { |
| field.setAccessible(true); |
| } |
| return field; |
| } |
| } |
| throw new NoSuchFieldException(clazz.getCanonicalName() + "." + fieldName); |
| } |
| |
| private static Object getFullyQualifiedValue(String fullyQualifiedName) throws Exception { |
| int lastDot = fullyQualifiedName.lastIndexOf("."); |
| String className = fullyQualifiedName.substring(0, lastDot); |
| String fieldName = fullyQualifiedName.substring(lastDot + 1); |
| |
| Class<?> clazz = Class.forName(className); |
| Field field = getField(clazz, fieldName); |
| return field.get(null); |
| } |
| |
| public static void main(String[] argv) throws Exception { |
| @SuppressWarnings("unchecked") |
| Coder<Object> testCoder = (Coder<Object>) getFullyQualifiedValue(argv[0]); |
| @SuppressWarnings("unchecked") |
| List<Object> testValues = (List<Object>) getFullyQualifiedValue(argv[1]); |
| |
| List<String> base64Encodings = Lists.newArrayList(); |
| for (Object value : testValues) { |
| base64Encodings.add(CoderUtils.encodeToBase64(testCoder, value)); |
| } |
| System.out.println(String.format("\"%s\"", Joiner.on("\",\n\"").join(base64Encodings))); |
| } |
| } |