-/********************\r
- * 2004 Jalview Reengineered\r
- * Barton Group\r
- * Dundee University\r
- *\r
- * AM Waterhouse\r
- *******************/\r
-\r
-package jalview.io;\r
-\r
-import java.io.*;\r
-import java.net.*;\r
-\r
-public class IdentifyFile\r
-{\r
- public static String Identify(String file, String protocol)\r
- {\r
- String reply = "PFAM";\r
- try{\r
-\r
- BufferedReader reader = null;\r
-\r
- if(protocol.equals("File"))\r
- reader = new BufferedReader(new FileReader(file));\r
-\r
- else if (protocol.equals("URL"))\r
- {\r
- reply = "URL NOT FOUND";\r
- URL url = new URL(file);\r
- reader = new BufferedReader(new InputStreamReader( url.openStream() ) );\r
- reply = "error";\r
- }\r
- else if( protocol.equals("Paste"))\r
- reader = new BufferedReader( new StringReader(file) );\r
-\r
-\r
- String data;\r
- while( (data=reader.readLine())!=null)\r
- {\r
- data = data.toUpperCase();\r
- if(data.indexOf("#")==0 || data.length()<1)\r
- continue;\r
-\r
- if(data.indexOf("PILEUP")>-1)\r
- {\r
- reply = "PileUp";\r
- break;\r
- }\r
- if((data.indexOf("!!")>-1)\r
- && (data.indexOf("!!")<data.indexOf("_MULTIPLE_ALIGNMENT ")))\r
- {\r
- reply = "MSF";\r
- break;\r
- }\r
- else if(data.indexOf("CLUSTAL")>-1)\r
- {\r
- reply = "CLUSTAL";\r
- break;\r
- }\r
- else if(data.indexOf(">P1;")>-1 || data.indexOf(">DL;")>-1)\r
- {\r
- reply = "PIR";\r
- break;\r
- }\r
- else if(data.indexOf(">")>-1)\r
- {\r
- // could be BLC file, read next line to confirm\r
- data = reader.readLine();\r
- if(data.indexOf(">")>-1)\r
- reply = "BLC";\r
- else\r
- reply = "FASTA";\r
-\r
- break;\r
- }\r
- }\r
- reader.close();\r
- }\r
- catch(Exception ex){\r
- System.err.println("File Identification failed!"); ex.printStackTrace();}\r
-\r
- return reply;\r
- }\r
-\r
-\r
-}\r
+/*
+ * Jalview - A Sequence Alignment Editor and Viewer
+ * Copyright (C) 2007 AM Waterhouse, J Procter, G Barton, M Clamp, S Searle
+ *
+ * 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; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * 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
+ */
+package jalview.io;
+
+import java.io.*;
+import java.net.*;
+
+/**
+ * DOCUMENT ME!
+ *
+ * @author $author$
+ * @version $Revision$
+ */
+public class IdentifyFile
+{
+ /**
+ * Identify a datasource's file content.
+ * @note Do not use this method
+ * for stream sources - create a FileParse object instead.
+ *
+ * @param file DOCUMENT ME!
+ * @param protocol DOCUMENT ME!
+ * @return ID String
+ */
+ public String Identify(String file, String protocol)
+ {
+ FileParse parser = null;
+ try {
+ parser = new FileParse(file, protocol);
+ if (parser.isValid()) {
+ return Identify(parser);
+ }
+ } catch (Exception e) {
+ System.err.println("Error whilst identifying");
+ e.printStackTrace(System.err);
+ }
+ if (parser!=null)
+ return parser.errormessage;
+ return "UNIDENTIFIED FILE PARSING ERROR";
+ }
+ public String Identify(FileParse source) {
+ return Identify(source, true); // preserves original behaviour prior to version 2.3
+ }
+ /**
+ * Identify contents of source, closing it or resetting source to start afterwards.
+ * @param source
+ * @param closeSource
+ * @return filetype string
+ */
+ public String Identify(FileParse source, boolean closeSource) {
+ String reply = "PFAM";
+ String data;
+ int length=0;
+ boolean lineswereskipped=false;
+ boolean isBinary = false; // true if length is non-zero and non-printable characters are encountered
+ try {
+ while ( (data = source.nextLine()) != null)
+ {
+ length+=data.length();
+ if (!lineswereskipped)
+ {
+ for (int i=0;!isBinary && i<data.length(); i++)
+ {
+ char c = data.charAt(i);
+ isBinary = (c<32 && c!='\t' && c!='\n' && c!='\r' && c!=5 && c!=27); // nominal binary character filter excluding CR, LF, tab,DEL and ^E for certain blast ids
+ }
+ }
+ if (isBinary)
+ {
+ // jar files are special - since they contain all sorts of random characters.
+ if (source.inFile!=null)
+ {
+ String fileStr=source.inFile.getName();
+ // possibly a Jalview archive.
+ if (fileStr.lastIndexOf(".jar")>-1 || fileStr.lastIndexOf(".zip")>-1)
+ {
+ reply = "Jalview";
+ }
+ }
+ if (!lineswereskipped && data.startsWith("PK")) {
+ reply="Jalview"; // archive.
+ break;
+ }
+ }
+ data = data.toUpperCase();
+
+ if ( (data.indexOf("# STOCKHOLM") > -1))
+ {
+ reply = "STH";
+
+ break;
+ }
+
+ if ((data.length() < 1) || (data.indexOf("#") == 0))
+ {
+ lineswereskipped=true;
+ continue;
+ }
+
+ if (data.indexOf("PILEUP") > -1)
+ {
+ reply = "PileUp";
+
+ break;
+ }
+
+ if ( (data.indexOf("//") == 0) ||
+ ( (data.indexOf("!!") > -1) &&
+ (data.indexOf("!!") < data.indexOf(
+ "_MULTIPLE_ALIGNMENT "))))
+ {
+ reply = "MSF";
+
+ break;
+ }
+ else if (data.indexOf("CLUSTAL") > -1)
+ {
+ reply = "CLUSTAL";
+
+ break;
+ }
+ else if ( (data.indexOf(">P1;") > -1) ||
+ (data.indexOf(">DL;") > -1))
+ {
+ reply = "PIR";
+
+ break;
+ }
+ else if (data.indexOf(">") > -1)
+ {
+ // could be BLC file, read next line to confirm
+ data = source.nextLine();
+
+ if (data.indexOf(">") > -1)
+ {
+ reply = "BLC";
+ }
+ else
+ {
+ //Is this a single line BLC file?
+ source.nextLine();
+ String data2 = source.nextLine();
+ if (data2 != null
+ && data.indexOf("*") > -1
+ && data.indexOf("*") == data2.indexOf("*"))
+ {
+ reply = "BLC";
+ }
+ else
+ {
+ reply = "FASTA";
+ }
+ }
+ break;
+ }
+ else if (data.indexOf("HEADER") == 0 ||
+ data.indexOf("ATOM") == 0)
+ {
+ reply = "PDB";
+ break;
+ }
+ else if (!lineswereskipped
+ && data.charAt(0)!='*'
+ && data.charAt(0)!=' '
+ && data.indexOf(":") < data.indexOf(",")) // && data.indexOf(",")<data.indexOf(",", data.indexOf(",")))
+ {
+ // file looks like a concise JNet file
+ reply = "JnetFile";
+ break;
+ }
+
+ lineswereskipped=true; // this means there was some junk before any key file signature
+ }
+ if (closeSource) {
+ source.close();
+ } else {
+ source.reset(); // so the file can be parsed from the beginning again.
+ }
+ }
+ catch (Exception ex)
+ {
+ System.err.println("File Identification failed!\n" + ex);
+ return source.errormessage;
+ }
+ if (length==0)
+ {
+ System.err.println("File Identification failed! - Empty file was read.");
+ return "EMPTY DATA FILE";
+ }
+ return reply;
+ }
+ public static void main(String[] args) {
+ for (int i=0; args!=null && i<args.length; i++)
+ {
+ IdentifyFile ider = new IdentifyFile();
+ String type = ider.Identify(args[i], AppletFormatAdapter.FILE);
+ System.out.println("Type of "+args[i]+" is "+type);
+ }
+ if (args==null || args.length==0)
+ {
+ System.err.println("Usage: <Filename> [<Filename> ...]");
+ }
+ }
+}
git://source.jalview.org / jalview.git / blobdiff