001 /**
002 * Copyright 2010-2012 The Kuali Foundation
003 *
004 * Licensed under the Educational Community License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 * http://www.opensource.org/licenses/ecl2.php
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016 package org.kuali.common.util.service;
017
018 import java.util.List;
019 import java.util.Properties;
020
021 import org.kuali.common.util.CollectionUtils;
022 import org.kuali.common.util.PropertyUtils;
023 import org.kuali.common.util.property.PropertyLoadContext;
024 import org.kuali.common.util.property.PropertyStoreContext;
025 import org.kuali.common.util.property.processor.PropertyProcessor;
026 import org.slf4j.Logger;
027 import org.slf4j.LoggerFactory;
028
029 public class DefaultPropertyService implements PropertyService {
030
031 private static final Logger logger = LoggerFactory.getLogger(DefaultPropertyService.class);
032
033 @Override
034 public Properties load(PropertyLoadContext context) {
035 Properties properties = loadProperties(context);
036 logger.info("Working with " + properties.size() + " properties total.");
037 context.initialize(properties);
038 List<PropertyProcessor> processors = CollectionUtils.toEmptyList(context.getProcessors());
039 logger.info("Processing " + properties.size() + " properties using " + processors.size() + " processors.");
040 PropertyUtils.process(properties, context.getProcessors());
041 logger.info("Returning " + properties.size() + " properties.");
042 if (logger.isDebugEnabled()) {
043 logger.debug(PropertyUtils.toString(properties));
044 }
045 return properties;
046 }
047
048 @Override
049 public void store(PropertyStoreContext context, Properties properties) {
050 Properties duplicate = PropertyUtils.duplicate(properties);
051 context.initialize(duplicate);
052 PropertyUtils.process(duplicate, context.getProcessors());
053 PropertyUtils.store(duplicate, context.getFile(), context.getEncoding(), context.getComment());
054 }
055
056 protected Properties loadProperties(PropertyLoadContext context) {
057 Properties properties = context.init();
058 int initialSize = properties.size();
059 List<String> locations = CollectionUtils.toEmptyList(context.getLocations());
060 logger.info("Examining " + locations.size() + " property locations.");
061 int count = 0;
062 for (String location : locations) {
063 String resolvedAndValidatedLocation = context.getLocation(location, properties);
064 if (resolvedAndValidatedLocation != null) {
065 Properties newProperties = PropertyUtils.load(resolvedAndValidatedLocation, context.getEncoding());
066 properties.putAll(newProperties);
067 count++;
068 }
069 }
070 int newSize = properties.size();
071 int skipped = locations.size() - count;
072 logger.info("Loaded " + (newSize - initialSize) + " properties from " + count + " locations. Skipped " + skipped + " locations.");
073 return properties;
074 }
075 }