// --- BEGIN COPYRIGHT BLOCK --- // This program is free software; you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation; version 2 of the License. // // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License along // with this program; if not, write to the Free Software Foundation, Inc., // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. // // (C) 2007 Red Hat, Inc. // All rights reserved. // --- END COPYRIGHT BLOCK --- package com.netscape.cmscore.base; import java.io.BufferedInputStream; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.io.OutputStreamWriter; import java.io.PrintWriter; import java.util.Enumeration; import java.util.Vector; import com.netscape.certsrv.apps.CMS; import com.netscape.certsrv.base.EBaseException; import com.netscape.certsrv.base.IConfigStore; import com.netscape.cmsutil.util.Utils; /** * FileConfigStore: * Extends HashConfigStore with methods to load/save from/to file for * persistent storage. This is a configuration store agent who * reads data from a file. *
* Note that a LdapConfigStore can be implemented so that it reads the configuration stores from the Ldap directory. *
* * @version $Revision$, $Date$ * @see PropConfigStore */ public class FileConfigStore extends PropConfigStore implements IConfigStore { /** * */ private static final long serialVersionUID = 2642124526598175633L; private File mFile = null; /** * Constructs a file configuration store. *
* * @param fileName file name * @exception EBaseException failed to create file configuration */ public FileConfigStore(String fileName) throws EBaseException { super(null); // top-level store without a name mFile = new File(fileName); if (!mFile.exists()) { throw new EBaseException(CMS.getUserMessage("CMS_BASE_NO_CONFIG_FILE", mFile.getPath())); } load(fileName); } /** * Loads property file into memory. *
*
* @param fileName file name
* @exception EBaseException failed to load configuration
*/
public void load(String fileName) throws EBaseException {
try {
FileInputStream fi = new FileInputStream(fileName);
BufferedInputStream bis = new BufferedInputStream(fi);
super.load(bis);
} catch (IOException e) {
throw new EBaseException("input stream error " + fileName, e);
}
}
/**
* The original config file is copied to
*
*
* @param backup
*/
public void commit(boolean createBackup) throws EBaseException {
if (createBackup) {
File newName = new File(mFile.getPath() + "." +
Long.toString(System.currentTimeMillis()));
try {
if (Utils.isNT()) {
// NT is very picky on the path
Utils.exec("copy " +
mFile.getAbsolutePath().replace('/', '\\') +
" " +
newName.getAbsolutePath().replace('/',
'\\'));
} else {
// Create a copy of the original file which
// preserves the original file permissions.
Utils.exec("cp -p " + mFile.getAbsolutePath() + " " +
newName.getAbsolutePath());
}
// Proceed only if the backup copy was successful.
if (!newName.exists()) {
throw new EBaseException("backup copy failed");
} else {
// Make certain that the backup file has
// the correct permissions.
if (!Utils.isNT()) {
Utils.exec("chmod 00660 " + newName.getAbsolutePath());
}
}
} catch (EBaseException e) {
throw new EBaseException("backup copy failed");
}
}
// Overwrite the contents of the original file
// to preserve the original file permissions.
save(mFile.getPath());
try {
// Make certain that the original file retains
// the correct permissions.
if (!Utils.isNT()) {
Utils.exec("chmod 00660 " + mFile.getCanonicalPath());
}
} catch (Exception e) {
}
}
/**
* Saves in-memory properties to a specified file.
*
* Note that the superclass's save is synchronized. It means no properties can be altered (inserted) at the saving
* time.
*
*
* @param fileName filename
* @exception EBaseException failed to save configuration
*/
public void save(String fileName) throws EBaseException {
try {
FileOutputStream fo = new FileOutputStream(fileName);
PrintWriter writer = new PrintWriter(new OutputStreamWriter(fo));
printSubStore(writer, this, "");
writer.close();
fo.close();
} catch (IOException e) {
throw new EBaseException("output stream error " + fileName, e);
}
}
private void printSubStore(PrintWriter writer, IConfigStore store,
String name) throws EBaseException,
IOException {
// print keys
Enumeration