Java tutorial
/* * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You should have received a copy of the license along with this library. * You may also obtain a copy of the License at * http://www.apache.org/licenses/LICENSE-2.0. */ package sf.wicklet.gwt.site.server.db; import java.io.File; import java.io.FileNotFoundException; import java.io.PrintWriter; import org.apache.wicket.protocol.http.WebApplication; import org.apache.wicket.util.string.StringValue; import sf.blacksun.util.FileUtil; import sf.wicklet.gwt.site.server.Config; public class CommentInfo { private static long counter = 0; private final String user; private final String subject; private final String content; public CommentInfo(final String user, final StringValue subject, final StringValue content) { this.user = user; this.subject = subject.toString(); this.content = content.toString(); } public boolean persist() { final String fname = String.format("WEB-INF/incoming/feedback/%1$tY%1$tm%1$td-%2$04d.txt", System.currentTimeMillis(), ++counter); final File file = new File(WebApplication.get().getServletContext().getRealPath(fname)); if (!file.getParentFile().mkdirs()) { Config.get().error("ERROR: Creating comment directory: " + file.getParent()); } PrintWriter out = null; try { out = new PrintWriter(file); out.println("User: " + user); out.println("Subject: " + subject); out.println(); out.println(content); } catch (final FileNotFoundException e) { Config.get().error("ERROR: Writing " + file, e); return false; } finally { FileUtil.close(out); } return true; } }