| /* |
| * 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.accumulo.core.conf; |
| |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.Map.Entry; |
| import java.util.function.Predicate; |
| |
| /** |
| * An {@link AccumuloConfiguration} which holds a flat copy of properties defined in another configuration |
| */ |
| public class ConfigurationCopy extends AccumuloConfiguration { |
| final Map<String,String> copy = Collections.synchronizedMap(new HashMap<String,String>()); |
| |
| /** |
| * Creates a new configuration. |
| * |
| * @param config |
| * configuration property key/value pairs to copy |
| */ |
| public ConfigurationCopy(Map<String,String> config) { |
| this(config.entrySet()); |
| } |
| |
| /** |
| * Creates a new configuration. |
| * |
| * @param config |
| * configuration property iterable to use for copying |
| */ |
| public ConfigurationCopy(Iterable<Entry<String,String>> config) { |
| for (Entry<String,String> entry : config) { |
| copy.put(entry.getKey(), entry.getValue()); |
| } |
| } |
| |
| /** |
| * Creates a new empty configuration. |
| */ |
| public ConfigurationCopy() { |
| this(new HashMap<String,String>()); |
| } |
| |
| @Override |
| public String get(Property property) { |
| return copy.get(property.getKey()); |
| } |
| |
| @Override |
| public void getProperties(Map<String,String> props, Predicate<String> filter) { |
| for (Entry<String,String> entry : copy.entrySet()) { |
| if (filter.test(entry.getKey())) { |
| props.put(entry.getKey(), entry.getValue()); |
| } |
| } |
| } |
| |
| /** |
| * Sets a property in this configuration. |
| * |
| * @param prop |
| * property to set |
| * @param value |
| * property value |
| */ |
| public void set(Property prop, String value) { |
| copy.put(prop.getKey(), value); |
| } |
| |
| /** |
| * Sets a property in this configuration. |
| * |
| * @param key |
| * key of property to set |
| * @param value |
| * property value |
| */ |
| public void set(String key, String value) { |
| copy.put(key, value); |
| } |
| |
| } |