/*
* 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 org.apache.oodt.cas.pushpull.filerestrictions.parsers;
//OODT imports
import org.apache.oodt.cas.pushpull.filerestrictions.Parser;
import org.apache.oodt.cas.pushpull.filerestrictions.VirtualFile;
import org.apache.oodt.cas.pushpull.filerestrictions.VirtualFileStructure;
import org.apache.oodt.cas.pushpull.protocol.RemoteSite;
import org.apache.oodt.cas.pushpull.exceptions.ParserException;
//JDK imports
import java.io.FileInputStream;
import java.net.URL;
import java.util.Scanner;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
*
* @author bfoster
* @version $Revision$
*
* <p>Describe your class here</p>.
*/
public class ClassNoaaEmailParser implements Parser {
public ClassNoaaEmailParser() {}
public VirtualFileStructure parse(FileInputStream emailFile)
throws ParserException {
try {
VirtualFile root = VirtualFile.createRootDir();
Scanner s = new Scanner(emailFile);
StringBuffer sb = new StringBuffer("");
while (s.hasNextLine())
sb.append(s.nextLine() + "\n");
if (!validEmail(sb.toString()))
throw new ParserException(
"Email not a IASI data processed notification email");
Pattern cdPattern = Pattern.compile("\\s*cd\\s{1,}.{1,}?(?:\\s|$)");
Matcher cdMatcher = cdPattern.matcher(sb);
Pattern getPattern = Pattern.compile("\\s*get\\s{1,}.{1,}?(?:\\s|$)");
Matcher getMatcher = getPattern.matcher(sb);
VirtualFile vf = null;
while (cdMatcher.find() && getMatcher.find()) {
String cdCommand = sb.substring(cdMatcher.start(), cdMatcher.end());
String directory = cdCommand.trim().split(" ")[1];
vf = new VirtualFile(root, directory, true);
vf.setNoDirs(true);
String getCommand = sb.substring(getMatcher.start(), getMatcher.end());
String file = getCommand.trim().split(" ")[1];
if (file.endsWith("*")) {
vf.addChild(new VirtualFile(file.substring(0,
file.length() - 1), false));
vf.addChild(new VirtualFile(file.substring(0,
file.length() - 1)
+ ".sig", false));
} else {
vf.addChild(new VirtualFile(file, false));
}
}
Pattern ftpPattern = Pattern.compile("\\sftp\\..*?\\s");
Matcher ftpMatcher = ftpPattern.matcher(sb);
RemoteSite remoteSite = null;
if (ftpMatcher.find()) {
String ftpSite = sb.substring(ftpMatcher.start(), ftpMatcher.end()).trim();
remoteSite = new RemoteSite(null, new URL("ftp://"
+ ftpSite), "anonymous", System
.getenv("user.name")
+ "@jpl.nasa.gov");
}
return new VirtualFileStructure(remoteSite, "/", root);
} catch (Exception e) {
e.printStackTrace();
throw new ParserException("Failed to parse IASI email : "
+ e.getMessage());
}
}
private boolean validEmail(String email) {
String[] containsStrings = (System.getProperties()
.getProperty("org.apache.oodt.cas.pushpull.filerestrictions.parsers.class.noaa.email.parser.contains.exprs")
+ ",").split(",");
for (String containsString : containsStrings)
if (!email.contains(containsString))
return false;
return true;
}
}