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/**
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* Copyright (C) 2007 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.cdm.api.application;
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import java.io.File;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.net.URL;
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import org.apache.log4j.Logger;
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import eu.etaxonomy.cdm.common.CdmUtils;
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import eu.etaxonomy.cdm.common.FileCopy;
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import eu.etaxonomy.cdm.config.CdmPersistentXMLSource;
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import eu.etaxonomy.cdm.config.ConfigFileUtil;
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public class CdmApplicationUtils {
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private static final Logger logger = Logger.getLogger(CdmApplicationUtils.class);
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//directory of the resources (configfiles etc.)
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static File fileResourceDir;
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static final String MUST_EXIST_FILE = CdmPersistentXMLSource.CDMSOURCE_PATH + CdmPersistentXMLSource.CDMSOURCE_FILE_NAME;
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// static final String MUST_EXIST_FILE = "persistence.xml";
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// static final String MUST_EXIST_FILE = "applicationContext.xml";
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/**
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* Returns the directory path to the writable resources (cdm.datasources.xml and H2 databases).
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* (Resources must be copied to this directory, this is automatically done for the cdm.datasources.xml)
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* @return
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* @throws IOException if resource directory is not writable
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*/
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public static File getWritableResourceDir() throws IOException{
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//compute only once
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if (fileResourceDir == null){
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//workaround to find out in which environment the library is executed
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URL url = CdmUtils.class.getResource(MUST_EXIST_FILE);
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if (url != null){
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String fileName = url.getPath();
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if (fileName.contains("%20")) {
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fileName = fileName.replaceAll("%20", " ");
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}
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File file = new File(fileName);
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if (file.exists()){
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fileResourceDir = file.getParentFile();
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}else{
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File homeDir = ConfigFileUtil.getCdmHomeDir();
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if (homeDir.getPath().equals("null")){
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//no application context available
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homeDir = ConfigFileUtil.getCdmHomeDirFallback();
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}
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file = new File(homeDir, "writableResources" );
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file.mkdirs();
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copyResources(file);
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fileResourceDir = file;
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}
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}
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logger.info("Resource directory: " + (fileResourceDir == null?"null":fileResourceDir.getAbsolutePath()));
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}
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return fileResourceDir;
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}
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static private void copyResources(File directory){
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copyResource(directory, CdmPersistentXMLSource.CDMSOURCE_FILE_NAME);
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}
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/**
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* Copies a file from the classpath resource (e.g. jar-File) to the resources directory in the file system (get
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* @param directory
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* @param resourceFileName
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*/
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static private boolean copyResource(File directory, String resourceFileName){
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try {
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InputStream isDataSource = CdmUtils.class.getResourceAsStream(CdmPersistentXMLSource.CDMSOURCE_PATH + resourceFileName);
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if (isDataSource != null){
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File fileToCopy = new File(directory + File.separator + resourceFileName);
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if (fileToCopy.createNewFile()){
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FileOutputStream outStream = new FileOutputStream(fileToCopy);
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FileCopy.copy(isDataSource, outStream);
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//XmlHelp.saveToXml(XmlHelp.getBeansRoot(isDataSource).getDocument(), outStream, Format.getPrettyFormat());
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}
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return true;
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}else{
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logger.error("Input datasource file " + resourceFileName + " + could not be found");
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}
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} catch (IOException e) {
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logger.error("File " + resourceFileName + " + could not be created");
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throw new RuntimeException(e);
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}
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return false;
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}
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}
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