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* CruiseControl, a Continuous Integration Toolkit
* Copyright (c) 2001, ThoughtWorks, Inc.
* 651 W Washington Ave. Suite 600
* Chicago, IL 60661 USA
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package net.sourceforge.cruisecontrol.taglib;
import java.io.File;
import java.io.IOException;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Arrays;
import java.util.Date;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.JspTagException;
import javax.servlet.jsp.tagext.BodyContent;
import net.sourceforge.cruisecontrol.BuildInfo;
import net.sourceforge.cruisecontrol.util.DateHelper;
import net.sourceforge.cruisecontrol.util.CCTagException;
/**
*
*/
public class NavigationTag extends CruiseControlBodyTagSupport {
public static final String LABEL_SEPARATOR = "L";
public static final String LINK_TEXT_ATTR = "linktext";
public static final String URL_ATTR = "url";
public static final String LOG_FILE_ATTR = "logfile";
private static final SimpleDateFormat LOG_TIME_FORMAT_SECONDS = new SimpleDateFormat("yyyyMMddHHmmss");
private static final SimpleDateFormat LOG_TIME_FORMAT = new SimpleDateFormat("yyyyMMddHHmm");
private BuildInfo[] buildInfo; // the log files in the log directory.
private int count; // How many times around the loop have we gone.
private int startingBuildNumber = 0;
private int finalBuildNumber = Integer.MAX_VALUE;
private int endPoint;
private DateFormat dateFormat = null;
private String extractLogNameFromFileName(String fileName) {
return fileName.substring(0, fileName.lastIndexOf(".xml"));
}
protected String getLinkText(String fileName) throws JspTagException {
String dateString = "";
String label = "";
if (fileName.lastIndexOf(LABEL_SEPARATOR) > -1) {
dateString = fileName.substring(3, fileName.indexOf(LABEL_SEPARATOR));
label = " (" + fileName.substring(fileName.indexOf(LABEL_SEPARATOR) + 1, fileName.length())
+ ")";
} else {
dateString = fileName.substring(3, fileName.length());
}
DateFormat inputDate = null;
if (dateString.length() == 14) {
inputDate = LOG_TIME_FORMAT_SECONDS;
} else {
inputDate = LOG_TIME_FORMAT;
}
Date date = null;
try {
date = inputDate.parse(dateString);
} catch (ParseException e) {
err(e);
throw new CCTagException("Error parsing '" + dateString + "': " + e.getMessage(), e);
}
return getDateFormat().format(date) + label;
}
public int doStartTag() throws JspException {
BuildInfo [] logFileNames = findLogFiles();
//sort links...
Arrays.sort(logFileNames, new ReversedComparator());
buildInfo = logFileNames;
count = Math.max(0, startingBuildNumber);
endPoint = Math.min(finalBuildNumber, buildInfo.length - 1) + 1;
if (count < endPoint) {
return EVAL_BODY_TAG;
} else {
return SKIP_BODY;
}
}
private BuildInfo[] findLogFiles() throws JspException {
File logDir = findLogDir();
return BuildInfo.loadFromDir(logDir).asArray();
}
public void doInitBody() throws JspException {
setupLinkVariables();
}
void setupLinkVariables() throws JspTagException {
final String fileName = buildInfo[count].getFileName();
String logName = extractLogNameFromFileName(fileName);
getPageContext().setAttribute(URL_ATTR, createUrl("log", logName));
getPageContext().setAttribute(LINK_TEXT_ATTR, getLinkText(logName));
getPageContext().setAttribute(LOG_FILE_ATTR, logName);
count++;
}
public int doAfterBody() throws JspException {
if (count < endPoint) {
setupLinkVariables();
return EVAL_BODY_TAG;
} else {
try {
BodyContent out = getBodyContent();
out.writeOut(out.getEnclosingWriter());
} catch (IOException e) {
err(e);
throw new CCTagException("IO Error: " + e.getMessage(), e);
}
return SKIP_BODY;
}
}
public int getStartingBuildNumber() {
return startingBuildNumber;
}
public void setStartingBuildNumber(int startingBuildNumber) {
this.startingBuildNumber = startingBuildNumber;
}
public int getFinalBuildNumber() {
return finalBuildNumber;
}
public void setFinalBuildNumber(int finalBuildNumber) {
this.finalBuildNumber = finalBuildNumber;
}
/**
* Set the DateFormat to use. The default is for US-Style (MM/dd/yyyy HH:mm:ss).
* @param dateFormatString the date format to use. Any format appropriate for the java.text.SimpleDataFormat is
* okay to use.
*/
public void setDateFormat(String dateFormatString) {
dateFormat = new SimpleDateFormat(dateFormatString);
}
private DateFormat getDateFormat() {
if (dateFormat == null) {
dateFormat = DateHelper.createDateFormat(getLocale());
}
return dateFormat;
}
}