Java tutorial
/* * Copyright 2014-2019 the original author or authors. * * 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 * * https://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.springframework.data.rest.core.config; import java.util.HashMap; import java.util.Map; import java.util.Map.Entry; import java.util.regex.Pattern; import org.springframework.util.Assert; /** * Configuration for metadata exposure. * * @author Oliver Gierke */ public class MetadataConfiguration { private final Map<Class<?>, JsonSchemaFormat> schemaFormats = new HashMap<Class<?>, JsonSchemaFormat>(); private final Map<Class<?>, Pattern> patterns = new HashMap<Class<?>, Pattern>(); private boolean omitUnresolvableDescriptionKeys = true; private boolean alpsEnabled = true; /** * Configures whether to omit documentation attributes for unresolvable resource bundle keys. Defaults to * {@literal true}, which means that an unsuccessful attempt to resolve the message will cause no documentation entry * to be rendered for the metadata resources. * * @param omitUnresolvableDescriptionKeys whether to omit documentation attributes for unresolvable resource bundle * keys. */ public void setOmitUnresolvableDescriptionKeys(boolean omitUnresolvableDescriptionKeys) { this.omitUnresolvableDescriptionKeys = omitUnresolvableDescriptionKeys; } /** * Returns whether to omit documentation attributes for unresolvable resource bundle keys. * * @return the omitUnresolvableDescriptionKeys */ public boolean omitUnresolvableDescriptionKeys() { return omitUnresolvableDescriptionKeys; } /** * Configures whether to expose the ALPS resources. * * @param alpsEnabled the alpsEnabled to set */ public void setAlpsEnabled(boolean enableAlps) { this.alpsEnabled = enableAlps; } /** * Returns whether the ALPS resources are exposed. * * @return the alpsEnabled */ public boolean alpsEnabled() { return alpsEnabled; } public void registerJsonSchemaFormat(JsonSchemaFormat format, Class<?>... types) { Assert.notNull(format, "JsonSchemaFormat must not be null!"); for (Class<?> type : types) { schemaFormats.put(type, format); } } /** * Returns the {@link JsonSchemaFormat} to be used for the given type. * * @param type must not be {@literal null}. * @return */ public JsonSchemaFormat getSchemaFormatFor(Class<?> type) { return schemaFormats.get(type); } /** * Registers the given formatting patter for the given value type. * * @param pattern must not be {@literal null} or empty. * @param type must not be {@literal null}. */ public void registerFormattingPatternFor(String pattern, Class<?> type) { Assert.hasText(pattern, "Pattern must not be null or empty!"); Assert.notNull(type, "Type must not be null!"); this.patterns.put(type, Pattern.compile(pattern)); } /** * Returns the {@link Pattern} registered for the given value type. * * @param type must not be {@literal null}. * @return */ public Pattern getPatternFor(Class<?> type) { Assert.notNull(type, "Type must not be null!"); for (Entry<Class<?>, Pattern> entry : this.patterns.entrySet()) { if (entry.getKey().isAssignableFrom(type)) { return entry.getValue(); } } return this.patterns.get(type); } }