| /* |
| * 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.runners.dataflow.util; |
| |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.Map; |
| import javax.annotation.Nullable; |
| import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.collect.ImmutableList; |
| |
| /** A utility for manipulating well-known cloud types. */ |
| @SuppressWarnings("ImmutableEnumChecker") |
| enum CloudKnownType { |
| TEXT("http://schema.org/Text", String.class) { |
| @Override |
| public <T> T parse(Object value, Class<T> clazz) { |
| return clazz.cast(value); |
| } |
| }, |
| BOOLEAN("http://schema.org/Boolean", Boolean.class) { |
| @Override |
| public <T> T parse(Object value, Class<T> clazz) { |
| return clazz.cast(value); |
| } |
| }, |
| INTEGER("http://schema.org/Integer", Long.class, Integer.class) { |
| @Override |
| public <T> T parse(Object value, Class<T> clazz) { |
| Object result = null; |
| if (value.getClass() == clazz) { |
| result = value; |
| } else if (clazz == Long.class) { |
| if (value instanceof Integer) { |
| result = ((Integer) value).longValue(); |
| } else if (value instanceof String) { |
| result = Long.valueOf((String) value); |
| } |
| } else if (clazz == Integer.class) { |
| if (value instanceof Long) { |
| result = ((Long) value).intValue(); |
| } else if (value instanceof String) { |
| result = Integer.valueOf((String) value); |
| } |
| } |
| return clazz.cast(result); |
| } |
| }, |
| FLOAT("http://schema.org/Float", Double.class, Float.class) { |
| @Override |
| public <T> T parse(Object value, Class<T> clazz) { |
| Object result = null; |
| if (value.getClass() == clazz) { |
| result = value; |
| } else if (clazz == Double.class) { |
| if (value instanceof Float) { |
| result = ((Float) value).doubleValue(); |
| } else if (value instanceof String) { |
| result = Double.valueOf((String) value); |
| } |
| } else if (clazz == Float.class) { |
| if (value instanceof Double) { |
| result = ((Double) value).floatValue(); |
| } else if (value instanceof String) { |
| result = Float.valueOf((String) value); |
| } |
| } |
| return clazz.cast(result); |
| } |
| }; |
| |
| private final String uri; |
| private final ImmutableList<Class<?>> classes; |
| |
| CloudKnownType(String uri, Class<?>... classes) { |
| this.uri = uri; |
| this.classes = ImmutableList.copyOf(classes); |
| } |
| |
| public String getUri() { |
| return uri; |
| } |
| |
| public abstract <T> T parse(Object value, Class<T> clazz); |
| |
| public Class<?> defaultClass() { |
| return classes.get(0); |
| } |
| |
| private static final Map<String, CloudKnownType> typesByUri = |
| Collections.unmodifiableMap(buildTypesByUri()); |
| |
| private static Map<String, CloudKnownType> buildTypesByUri() { |
| Map<String, CloudKnownType> result = new HashMap<>(); |
| for (CloudKnownType ty : CloudKnownType.values()) { |
| result.put(ty.getUri(), ty); |
| } |
| return result; |
| } |
| |
| @Nullable |
| public static CloudKnownType forUri(@Nullable String uri) { |
| if (uri == null) { |
| return null; |
| } |
| return typesByUri.get(uri); |
| } |
| |
| private static final Map<Class<?>, CloudKnownType> typesByClass = |
| Collections.unmodifiableMap(buildTypesByClass()); |
| |
| private static Map<Class<?>, CloudKnownType> buildTypesByClass() { |
| Map<Class<?>, CloudKnownType> result = new HashMap<>(); |
| for (CloudKnownType ty : CloudKnownType.values()) { |
| for (Class<?> clazz : ty.classes) { |
| result.put(clazz, ty); |
| } |
| } |
| return result; |
| } |
| |
| @Nullable |
| public static CloudKnownType forClass(Class<?> clazz) { |
| return typesByClass.get(clazz); |
| } |
| } |