接著上節的demo來看如何在Eclipse下搭建Openi的開發及除錯環境.

一.下載openi-1.3.0-RELEASE-src

二.新建web project

在MyEclipse下新建web project:openi

1.openi-1.3.0-RELEASE-src\openi\src下的檔案copy到上面新建的openisrc下.

2.openi-1.3.0-RELEASE\openi\openi.war,在tomcat解壓後的資料夾下,將除WEB-INF之外的所有檔案copy至剛才新建的專案

3.在MyEclipse下發布openi

4.當然，別忘了把openi-1.3.0-RELEASE\openi\ openi-projects.war，openi-1.3.0-RELEASE\openi\ mondrian.war拷貝到<tomcat_home>\webapps

5.檢視，並設定斷點進行除錯

啟動tomcat, http://localhost:8080/openi,應該可以訪問了.使用者密碼如果沒有修改的話,應該就是tomcat/tomcat,如果不對,請去<tomcat_home>\conf\tomcat-users.xml自己去找.

 

三、修改埠

該專案預設的埠是8080.而大多數tomcat可能設定成別的埠如8088等。在這裡通過檢視原始碼，及在MyEclipse下面除錯原始碼，就可以發現，org.openi.project.ProjectFactory類中方法：getProject

    public static Project getProject(String baseDirName, String projectId)
        throws IOException {
        // important to give proper feedback to caller
        if (baseDirName == null) {
            throw new IOException(
                "Project directory name is null. This should be the location for all projects");
        }

        BeanStorage storage = new BeanStorage();

        String projectFilePath = new File(baseDirName,
                projectId + "/project.xml").getCanonicalPath();
        logger.debug("Trying to restore project: " + projectFilePath);
        
        Project retProject = null;
        try{
                 retProject = (Project) storage.restoreBeanFromFile(projectFilePath);
        }catch(Exception e){
                logger.debug("trouble restoring project from " + projectFilePath, e);
                logger.debug("possibly old format, trying xslt");
        }

        if(retProject == null){
            String xsltPath = new File(baseDirName).getParent()
                + "/openi/WEB-INF/project/project.xsl";
            logger.debug(
                "transforming  project.xml into new format using template "
                + xsltPath);
    
            try {
                    String backup = backupOldFile(projectFilePath);
                    transformProjectToNewFormat(backup, projectFilePath, xsltPath);
                    //transformed, try to restore again, this time if it doesn't work, throw IOException:
                     retProject = (Project) storage.restoreBeanFromFile(projectFilePath);
            } catch (Exception ex) {
                //logger.error(ex.getStackTrace());
                throw new IOException(
                    "An error occured while transforming project.xml into new format\nroot cause:"
                    + ex.getMessage());
            }
        }

        return retProject;
    }

從中可以看出project的datasource的來源.它來自檔案：<tomcat_home>\webapps\openi-projects\foodmart\project.xml

在此檔案中

  <dataSourceMap>
    <entry>
      <string>mondrian</string>
      <org.openi.analysis.Datasource>
        <server>http://localhost:8080/mondrian/xmla</server>
        <xmlaDatasource>MondrianFoodMart</xmlaDatasource>
        <catalog>FoodMart</catalog>
      </org.openi.analysis.Datasource>
    </entry>

只需要把這裡面的8080改成自己的埠就OK了。(當然,別忘了修改tomcat\conf server.xml中的埠了哦,呵呵).

請對openi或BI感興趣的朋友多多支援,讓俺認真研究研究,以便發更多的檔案.下節寫寫對整個openi的設計.