properties的配置文件缓存模型

package com.travelzen.framework.core.config;import java.io.BufferedReader;import java.io.ByteArrayInputStream;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.util.Map;import java.util.Properties;import java.util.concurrent.ConcurrentHashMap;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.core.io.DefaultResourceLoader;import org.springframework.core.io.Resource;import com.travelzen.framework.core.exception.PropertyException;import com.travelzen.framework.core.util.TZUtil;/** * properties的配置文件缓存模型 *  * @author jiangningcui *  */public class PropertiesUtil {private static Logger logger = LoggerFactory.getLogger(PropertiesUtil.class);private static Map<String, Properties> mapProperties = new ConcurrentHashMap<String, Properties>();/** * 更新缓存 *  * @param resourcePath * @param properties */private static void saveOrUpdateProperties(String resourcePath, Properties properties) {if (!TZUtil.isEmpty(resourcePath) && !TZUtil.isEmpty(properties)) {mapProperties.put(resourcePath, properties);}}/** * 从inpustrema中获得数据 */public static String getProperty(String resourcePath, byte[] data, String key, boolean needToCached, String defaultValue) {if (TZUtil.isEmpty(data))return null;ByteArrayInputStream inputStream = new ByteArrayInputStream(data);Properties properties = getProperties(resourcePath, inputStream, needToCached);return getValue(properties, key, defaultValue);}/** * 从inpustrema中获得数据 */public static Properties getProperty(String resourcePath, byte[] data, boolean needToCached) {if (TZUtil.isEmpty(data))return null;ByteArrayInputStream inputStream = new ByteArrayInputStream(data);Properties properties = getProperties(resourcePath, inputStream, needToCached);return properties;}/** * 从inpustrema中获得数据 */public static Properties getProperty(byte[] data) {if (TZUtil.isEmpty(data))return null;ByteArrayInputStream inputStream = new ByteArrayInputStream(data);Properties properties = getProperties(inputStream);return properties;}/** * 保存某个数据到配置文件中 */public static void updatePropretiesFile(String filePath, String key, String value) {if (filePath == null || key == null)return;try {Properties dateProps = getLocalfileProperties(filePath, false);if (dateProps != null) {FileOutputStream fos = new FileOutputStream(filePath);dateProps.setProperty(key, value);dateProps.store(fos, "");fos.flush();fos.close();}} catch (Exception e) {logger.error(e.getMessage());}}public static Properties getPropertiesFromCache(String resourcePath, boolean needToCached) {if (needToCached && !TZUtil.isEmpty(resourcePath) && mapProperties.containsKey(resourcePath)) {return mapProperties.get(resourcePath);}return null;}/** * loadProperties 注意,获得的不是Java的资源文件,而是外部的文件系统的文件 */public static Properties getLocalfileProperties(String resourcePath, boolean needToCached) {if (needToCached && !TZUtil.isEmpty(resourcePath) && mapProperties.containsKey(resourcePath)) {return mapProperties.get(resourcePath);}BufferedReader input = null;try {input = new BufferedReader(new InputStreamReader(new FileInputStream(resourcePath), "UTF-8"));Properties properties = new Properties();properties.load(input);if (needToCached) {saveOrUpdateProperties(resourcePath, properties);}return properties;} catch (IOException e1) {logger.error(e1.getLocalizedMessage() + " ->" + resourcePath);throw PropertyException.instanceConfNotFoundException("getLocalProperties上没有数据, resourcePath = " + resourcePath, e1);} finally {try {input.close();} catch (IOException e) {e.printStackTrace();}}}/** * loadProperties 注意,获得的不是Java的资源文件,而是外部的文件系统的文件 */public static Properties getProperties(InputStream input) {if (input != null) {BufferedReader reader = null;try {reader = new BufferedReader(new InputStreamReader(input, "UTF-8"));Properties properties = new Properties();properties.load(reader);return properties;} catch (IOException e) {logger.error(e.getLocalizedMessage(), e);throw PropertyException.instanceConfNotFoundException("getLocalProperties上没有数据", e);} finally {if (reader != null) {try {reader.close();} catch (IOException e) {e.printStackTrace();}}}}return null;}/** * loadProperties 注意,获得的不是Java的资源文件,而是外部的文件系统的文件 */public static Properties getProperties(String resourcePath, InputStream input, boolean needToCached) {if (input != null) {BufferedReader reader = null;try {reader = new BufferedReader(new InputStreamReader(input, "UTF-8"));Properties properties = new Properties();properties.load(reader);if (needToCached) {saveOrUpdateProperties(resourcePath, properties);}return properties;} catch (IOException e) {logger.error(e.getLocalizedMessage(), e);throw PropertyException.instanceConfNotFoundException("getLocalProperties上没有数据", e);} finally {if (reader != null) {try {reader.close();} catch (IOException e) {e.printStackTrace();}}}}return null;}/** * 从properties获得制定的值 *  * @param properties * @param key * @param defaultValue * @return */public static String getValue(Properties properties, String key, String defaultValue) {if (!TZUtil.isEmpty(properties)) {String value = properties.getProperty(key);if (TZUtil.isEmpty(value))value = defaultValue;//value = StringUtils.trimToNull(value);return value;}return defaultValue;}public static InputStream getInputStreamFromResource(String resourcePath) {DefaultResourceLoader loader = new DefaultResourceLoader();Resource rc = loader.getResource(resourcePath);InputStream input = null;try {input = rc.getInputStream();return input;} catch (IOException e1) {logger.error(e1.getLocalizedMessage());e1.printStackTrace();return null;}}public static String getPropertyFromResource(String resourcePath, String key) {InputStream input = getInputStreamFromResource(resourcePath);if (input != null)try {Properties properties = new Properties();properties.load(input);return properties.getProperty(key).trim();} catch (IOException e) {logger.error(e.getLocalizedMessage(), e);}return null;}}