JAL-3032 DND enabled; additional io changes for File vs. String

[jalview.git] / src / jalview / io / IdentifyFile.java

diff --git a/src/jalview/io/IdentifyFile.java b/src/jalview/io/IdentifyFile.java
index 035c1fa..8fa76ec 100755 (executable)
--- a/src/jalview/io/IdentifyFile.java
+++ b/src/jalview/io/IdentifyFile.java
@@ -20,6 +20,7 @@
  */
 package jalview.io;
 
+import java.io.File;
 import java.io.IOException;
 
 /**
@@ -30,6 +31,40 @@ import java.io.IOException;
  */
 public class IdentifyFile
 {
+  
+  public FileFormatI identify(Object file, DataSourceType protocol) throws FileFormatException
+  {
+    // BH 2018
+    return (file instanceof File ? identify((File) file, protocol) : identify((String) file, protocol));
+    
+  }
+
+  public FileFormatI identify(File file, DataSourceType sourceType)
+          throws FileFormatException
+  {
+    // BH 2018
+    String emessage = "UNIDENTIFIED FILE PARSING ERROR";
+    FileParse parser = null;
+    try
+    {
+      parser = new FileParse(file, sourceType);
+      if (parser.isValid())
+      {
+        return identify(parser);
+      }
+    } catch (Exception e)
+    {
+      System.err.println("Error whilst identifying " + file);
+      e.printStackTrace(System.err);
+      emessage = e.getMessage();
+    }
+    if (parser != null)
+    {
+      throw new FileFormatException(parser.errormessage);
+    }
+    throw new FileFormatException(emessage);
+  }
+
   /**
    * Identify a datasource's file content.
    *
@@ -55,7 +90,7 @@ public class IdentifyFile
       }
     } catch (Exception e)
     {
-      System.err.println("Error whilst identifying");
+      System.err.println("Error whilst identifying " + file);
       e.printStackTrace(System.err);
       emessage = e.getMessage();
     }
@@ -72,10 +107,11 @@ public class IdentifyFile
     // preserves original behaviour prior to version 2.3
   }
 
-  public FileFormatI identify(AlignmentFileReaderI file, boolean closeSource)
-          throws IOException
+  public FileFormatI identify(AlignmentFileReaderI file,
+          boolean closeSource) throws IOException
   {
-    FileParse fp = new FileParse(file.getInFile(), file.getDataSourceType());
+    FileParse fp = new FileParse(file.getInFile(),
+            file.getDataSourceType());
     return identify(fp, closeSource);
   }
 
@@ -274,6 +310,11 @@ public class IdentifyFile
           // read as a FASTA (probably)
           break;
         }
+        if (data.indexOf("{\"") > -1)
+        {
+          reply = FileFormat.Json;
+          break;
+        }
         int lessThan = data.indexOf("<");
         if ((lessThan > -1)) // possible Markup Language data i.e HTML,
                              // RNAML, XML
@@ -291,11 +332,6 @@ public class IdentifyFile
           }
         }
 
-        if (data.indexOf("{\"") > -1)
-        {
-          reply = FileFormat.Json;
-          break;
-        }
         if ((data.length() < 1) || (data.indexOf("#") == 0))
         {
           lineswereskipped = true;
@@ -309,9 +345,8 @@ public class IdentifyFile
           break;
         }
 
-        if ((data.indexOf("//") == 0)
-                || ((data.indexOf("!!") > -1) && (data.indexOf("!!") < data
-                        .indexOf("_MULTIPLE_ALIGNMENT "))))
+        if ((data.indexOf("//") == 0) || ((data.indexOf("!!") > -1) && (data
+                .indexOf("!!") < data.indexOf("_MULTIPLE_ALIGNMENT "))))
         {
           reply = FileFormat.MSF;
 
@@ -361,8 +396,8 @@ public class IdentifyFile
     }
     if (trimmedLength == 0)
     {
-      System.err
-              .println("File Identification failed! - Empty file was read.");
+      System.err.println(
+              "File Identification failed! - Empty file was read.");
       throw new FileFormatException("EMPTY DATA FILE");
     }
     System.out.println("File format identified as " + reply.toString());
@@ -428,9 +463,9 @@ public class IdentifyFile
         type = ider.identify(args[i], DataSourceType.FILE);
       } catch (FileFormatException e)
       {
-        System.err.println(String.format(
-                "Error '%s' identifying file type for %s", args[i],
-                e.getMessage()));
+        System.err.println(
+                String.format("Error '%s' identifying file type for %s",
+                        args[i], e.getMessage()));
       }
       System.out.println("Type of " + args[i] + " is " + type);
     }
@@ -439,4 +474,6 @@ public class IdentifyFile
       System.err.println("Usage: <Filename> [<Filename> ...]");
     }
   }
+
+ 
 }