记录工作每阶段的代码质量——2011年2月20日

package com.zzq.pattern.decorator;public interface Executor {public void execute(String msg);}

package com.zzq.pattern.decorator;import java.util.ArrayList;import java.util.HashMap;import java.util.List;import java.util.Map;import java.util.logging.Logger;public class BufferedLogger {private static final int SIZE = 100;private Logger logger = null;private Map<String, List<String>> map = null;public BufferedLogger(Logger logger) {this.logger = logger;this.map = new HashMap<String, List<String>>();}public void fine(String msg) {process(msg, "fine", new Executor() {public void execute(String msg) {logger.fine(msg);}});}public void info(String msg) {process(msg, "info", new Executor() {public void execute(String msg) {logger.info(msg);}});}public void severe(String msg) {process(msg, "severe", new Executor() {public void execute(String msg) {logger.severe(msg);}});}public void warning(String msg) {process(msg, "warning", new Executor() {public void execute(String msg) {logger.warning(msg);}});}private void process(String msg, String level, Executor executor) {List<String> buffer = map.get(level);boolean overflow = checkSize(level);if (overflow == true) {for (String content : buffer) {executor.execute(content);}clearBuffer(level);}buffer.add(msg);}private boolean checkSize(String level) {List<String> buffer = map.get(level);if (buffer != null && buffer.size() < SIZE) {return false;}if (buffer == null) {map.put(level, new ArrayList<String>());return false;}return true;}private void clearBuffer(String level) {List<String> buffer = map.get(level);if (buffer != null) {buffer.clear();}}}