| /* |
| * 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.tuweni.config; |
| |
| import static org.apache.tuweni.config.Configuration.canonicalKey; |
| |
| import java.io.IOException; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| import java.util.function.Function; |
| import java.util.stream.Collectors; |
| import javax.annotation.Nullable; |
| |
| final class EmptyConfiguration implements Configuration { |
| |
| static final Configuration EMPTY = new EmptyConfiguration(null); |
| |
| private final Schema schema; |
| private final List<ConfigurationError> errors; |
| |
| EmptyConfiguration(@Nullable Schema schema) { |
| if (schema != null) { |
| this.schema = schema; |
| this.errors = schema.validate(EMPTY).collect(Collectors.toList()); |
| } else { |
| this.schema = Schema.EMPTY; |
| this.errors = Collections.emptyList(); |
| } |
| } |
| |
| @Override |
| public List<ConfigurationError> errors() { |
| return errors; |
| } |
| |
| @Override |
| public void toToml(Appendable appendable) throws IOException { |
| new TomlSerializer(this, schema).writeTo(appendable); |
| } |
| |
| @Override |
| public Set<String> keySet() { |
| return schema.defaultsKeySet(); |
| } |
| |
| @Override |
| public boolean contains(String key) { |
| return schema.hasDefault(key); |
| } |
| |
| @Nullable |
| @Override |
| public Object get(String key) { |
| return schema.getDefault(canonicalKey(key)); |
| } |
| |
| @Nullable |
| @Override |
| public DocumentPosition inputPositionOf(String key) { |
| return null; |
| } |
| |
| @Override |
| public String getString(String key) { |
| return getValue(key, schema::getDefaultString); |
| } |
| |
| @Override |
| public int getInteger(String key) { |
| return getValue(key, schema::getDefaultInteger); |
| } |
| |
| @Override |
| public long getLong(String key) { |
| return getValue(key, schema::getDefaultLong); |
| } |
| |
| @Override |
| public double getDouble(String key) { |
| return getValue(key, schema::getDefaultDouble); |
| } |
| |
| @Override |
| public boolean getBoolean(String key) { |
| return getValue(key, schema::getDefaultBoolean); |
| } |
| |
| @Override |
| public Map<String, Object> getMap(String key) { |
| return getValue(key, schema::getDefaultMap); |
| } |
| |
| @Override |
| public List<Object> getList(String key) { |
| return getValue(key, schema::getDefaultList); |
| } |
| |
| @Override |
| public List<String> getListOfString(String key) { |
| return getValue(key, schema::getDefaultListOfString); |
| } |
| |
| @Override |
| public List<Integer> getListOfInteger(String key) { |
| return getValue(key, schema::getDefaultListOfInteger); |
| } |
| |
| @Override |
| public List<Long> getListOfLong(String key) { |
| return getValue(key, schema::getDefaultListOfLong); |
| } |
| |
| @Override |
| public List<Double> getListOfDouble(String key) { |
| return getValue(key, schema::getDefaultListOfDouble); |
| } |
| |
| @Override |
| public List<Boolean> getListOfBoolean(String key) { |
| return getValue(key, schema::getDefaultListOfBoolean); |
| } |
| |
| @Override |
| public List<Map<String, Object>> getListOfMap(String key) { |
| return getValue(key, schema::getDefaultListOfMap); |
| } |
| |
| private <T> T getValue(String key, Function<String, T> defaultGet) { |
| String canonicalKey = canonicalKey(key); |
| T value = defaultGet.apply(canonicalKey); |
| if (value != null) { |
| return value; |
| } |
| throw new NoConfigurationPropertyException("No value for property '" + canonicalKey + "'"); |
| } |
| } |