/*
* Copyright 2007-2008 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.impalaframework.bootstrap;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.TreeMap;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.impalaframework.config.PropertyValue;
import org.springframework.util.ObjectUtils;
/**
* Data hold which is used to capture configuration information: specifiically
* the context locations used to bootstrap Impala, as well as property
* configuration values, typically specified in an <i>impala.properties</i>
* file.
*
* @author Phil Zoio
*/
public class ConfigurationSettings {
private static Log logger = LogFactory.getLog(ConfigurationSettings.class);
private final ArrayList<String> configLocations = new ArrayList<String>();
private final Map<String,PropertyValue> propertyValues = new TreeMap<String, PropertyValue>();
public ConfigurationSettings() {
super();
}
public void addProperty(String property, PropertyValue propertyValue) {
propertyValues.put(property, propertyValue);
}
public void add(String location) {
configLocations.add(location);
}
public void logProperties() {
List<String> keyList = sortKeys();
for (String key : keyList) {
String stringValue = propertyValue(key);
logger.info("Value for '" + key + "': " + stringValue);
}
}
public List<String> getContextLocations() {
return Collections.unmodifiableList(configLocations);
}
public Map<String, PropertyValue> getPropertyValues() {
return Collections.unmodifiableMap(propertyValues);
}
private List<String> sortKeys() {
final Set<String> keys = propertyValues.keySet();
List<String> keyList = new ArrayList<String>(keys);
Collections.sort(keyList);
return keyList;
}
private String propertyValue(String key) {
PropertyValue value = propertyValues.get(key);
String stringValue = null;
if (value != null) {
stringValue = value.getRawValue();
if (stringValue == null) {
stringValue = value.getRawDefaultValue();
if (stringValue != null) {
stringValue = stringValue + " (default)";
}
}
}
if (stringValue == null) {
return "[null]";
}
return stringValue;
}
public String toString() {
final String newLine = System.getProperty("line.separator");
StringBuffer buffer = new StringBuffer(ObjectUtils.identityToString(this));
buffer.append(newLine);
buffer.append("Context locations: " + configLocations);
buffer.append(newLine);
buffer.append("Property settings: ");
buffer.append(newLine);
final List<String> sortKeys = sortKeys();
for (String key : sortKeys) {
String stringValue = propertyValue(key);
buffer.append(" ").append(key).append(": ").append(stringValue).append(newLine);
}
buffer.append("--------");
return buffer.toString();
}
}