/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package ro.nextreports.designer.util;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import java.util.List;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.regex.Pattern;
import java.util.regex.Matcher;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.File;
import java.io.IOException;
import java.text.Collator;
/**
* User: mihai.panaitescu
* Date: 22-Feb-2010
* Time: 16:41:02
*/
public class TnsNameParser {
private static final Log LOG = LogFactory.getLog(TnsNameParser.class);
public static List<String> getTnsDataSources(String path) {
List<String> result = new ArrayList<String>();
if (path == null) {
return result;
}
StringBuffer fileData = new StringBuffer();
BufferedReader reader = null;
try {
reader = new BufferedReader(new FileReader(new File(path, "tnsnames.ora")));
char[] buf = new char[1024];
int numRead = 0;
while ((numRead = reader.read(buf)) != -1) {
fileData.append(buf, 0, numRead);
}
Pattern pattern = Pattern.compile("[\\n][\\s]*([^\\(][\\w$#]+)[\\s]*=[\\s]*\\(");
Matcher matcher = pattern.matcher(fileData.toString());
while (matcher.find()) {
result.add(matcher.group(1));
}
Collections.sort(result, new Comparator<String>() {
public int compare(String s1, String s2) {
return Collator.getInstance().compare(s1, s2);
}
});
} catch (Exception ex) {
ex.printStackTrace();
LOG.error(ex.getMessage(), ex);
} finally {
if (reader != null) {
try {
reader.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
return result;
}
}