| /* |
| * 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.openjpa.lib.conf; |
| |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.apache.openjpa.lib.log.Log; |
| import org.apache.openjpa.lib.util.Localizer; |
| |
| /** |
| * Simple configuration provider that sets configuration based on a |
| * provided map. |
| * |
| * @author Abe White |
| */ |
| public class MapConfigurationProvider implements ConfigurationProvider { |
| |
| private static final Localizer _loc = Localizer.forPackage |
| (MapConfigurationProvider.class); |
| |
| private Map _props = null; |
| |
| /** |
| * Construct with null properties. |
| */ |
| public MapConfigurationProvider() { |
| } |
| |
| /** |
| * Constructor; supply properties map. |
| */ |
| public MapConfigurationProvider(Map props) { |
| addProperties(props); |
| } |
| |
| public Map getProperties() { |
| return (_props == null) ? Collections.EMPTY_MAP : _props; |
| } |
| |
| public void addProperties(Map props) { |
| if (props == null || props.isEmpty()) |
| return; |
| if (_props == null) |
| _props = new HashMap(); |
| _props.putAll(props); |
| } |
| |
| public Object addProperty(String key, Object value) { |
| if (_props == null) |
| _props = new HashMap(); |
| return _props.put(key, value); |
| } |
| |
| public void setInto(Configuration conf) { |
| setInto(conf, conf.getConfigurationLog()); |
| } |
| |
| /** |
| * Set properties into configuration. If the log is non-null, will log |
| * a TRACE message about the set. |
| */ |
| protected void setInto(Configuration conf, Log log) { |
| if (log != null && log.isTraceEnabled()) |
| log.trace(_loc.get("conf-load", getProperties())); |
| if (_props != null) |
| conf.fromProperties(_props); |
| } |
| } |