/*
* Copyright 2008 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
*
* 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.constretto.internal.store;
import org.apache.commons.beanutils.PropertyUtils;
import org.constretto.ConfigurationStore;
import org.constretto.annotation.ConfigurationSource;
import org.constretto.exception.ConstrettoException;
import org.constretto.internal.ConstrettoUtils;
import org.constretto.model.ConfigurationValue;
import org.constretto.model.TaggedPropertySet;
import java.beans.PropertyDescriptor;
import java.util.*;
/**
* @author <a href="mailto:kaare.nilsen@gmail.com">Kaare Nilsen</a>
*/
public class ObjectConfigurationStore implements ConfigurationStore {
private final List<Object> configurationObjects;
public ObjectConfigurationStore() {
configurationObjects = new ArrayList<Object>();
}
private ObjectConfigurationStore(List<Object> configurationObjects) {
this.configurationObjects = configurationObjects;
}
public ObjectConfigurationStore addObject(Object configurationObject) {
configurationObjects.add(configurationObject);
return new ObjectConfigurationStore(configurationObjects);
}
public Collection<TaggedPropertySet> parseConfiguration() {
Map<String, TaggedPropertySet> propertySets = new HashMap<String, TaggedPropertySet>();
for (Object configurationObject : configurationObjects) {
TaggedPropertySet taggedPropertySet = createPropertySetForObject(configurationObject);
if (propertySets.containsKey(taggedPropertySet.tag())) {
TaggedPropertySet orginialSet = propertySets.get(taggedPropertySet.tag());
orginialSet.getProperties().putAll(taggedPropertySet.getProperties());
propertySets.put(taggedPropertySet.tag(), orginialSet);
} else {
propertySets.put(taggedPropertySet.tag(), taggedPropertySet);
}
}
return propertySets.values();
}
private TaggedPropertySet createPropertySetForObject(Object configurationObject) {
String tag = ConfigurationValue.DEFAULT_TAG;
String basePath = "";
Map<String, String> properties = new HashMap<String, String>();
if (configurationObject.getClass().isAnnotationPresent(ConfigurationSource.class)) {
ConfigurationSource configurationAnnotation = configurationObject.getClass().getAnnotation(ConfigurationSource.class);
tag = configurationAnnotation.tag();
if (tag.equals("")) {
tag = ConfigurationValue.DEFAULT_TAG;
}
basePath = configurationAnnotation.basePath();
}
for (PropertyDescriptor propertyDescriptor : PropertyUtils.getPropertyDescriptors(configurationObject)) {
boolean canRead = propertyDescriptor.getReadMethod() != null;
boolean isString = propertyDescriptor.getPropertyType().isAssignableFrom(String.class);
if (canRead && isString) {
String path = propertyDescriptor.getName();
try {
String value = (String) PropertyUtils.getProperty(configurationObject, path);
if (!ConstrettoUtils.isEmpty(basePath)) {
path = basePath + "." + path;
}
properties.put(path, value);
} catch (Exception e) {
throw new ConstrettoException("Could not access data in field", e);
}
}
}
return new TaggedPropertySet(tag, properties, getClass());
}
}