diff src/HumanEchoServlet.java @ 54:b27106b380d8

Populate and pass location of input dir; handle all parameters from page; use only one echo instance (??)

--- a/src/HumanEchoServlet.java	Mon Mar 03 13:17:16 2014 +0000
+++ b/src/HumanEchoServlet.java	Mon Mar 03 15:31:14 2014 +0000
@@ -29,10 +29,12 @@
 import uk.ac.soton.isvr.*;
 
 public class HumanEchoServlet extends HttpServlet {
+
     private HumanEcho echo;
     private static Logger logger = Logger.getLogger(HumanEchoServlet.class);
 
-    private String wavdir = "";
+    private String outdir = "";
+    private String indir = "";
 
     public void init(ServletConfig config) throws ServletException {
         super.init(config);
@@ -43,15 +45,15 @@
 		     System.getProperty("java.library.path"));
 
         try {
-	    // Read directory properties
             Properties properties = new Properties();
             properties.load
 		(Thread.currentThread().getContextClassLoader().
 		 getResourceAsStream("HumanEcho.properties"));
 
-            wavdir = properties.getProperty("outdir");
+            outdir = properties.getProperty("outdir");
+            indir = properties.getProperty("indir");
 
-	    logger.info("WAV file directory is " + wavdir);
+	    logger.info("WAV file directory is " + outdir);
 
         } catch (Exception e) {
 	    logger.error("Failed to load app properties: " + e.getMessage());
@@ -85,36 +87,41 @@
 
 	logger.info("In doGet");
 
+        logger.info("Distance (as string) is: " + request.getParameter("dist"));
+
         // todo: validate/normalise distance
-        int dist = Integer.parseInt(request.getParameter("dist"));
+        Double dist = Double.parseDouble(request.getParameter("dist"));
 
-        logger.info("String azim is: " + request.getParameter("azim"));
-        Float azim = Float.parseFloat(request.getParameter("azim"));
+	Double azim = Double.parseDouble(request.getParameter("azim"));
+
+	String orientation = request.getParameter("orient");
+
+	Double dirweight = Double.parseDouble(request.getParameter("dirweight"));
 
         MWStructArray Input = null;
-        HumanEcho echo;
 
         String outputfname = new String();
 
-	logger.info("Got dist and azim");
+	logger.info("Got parameters");
 
         try {
-	    //!!! erch, shouldn't be creating a new one on each request as well as a global one
-            echo = new HumanEcho();
-
             logger.info("Property catalina.base is " + System.getProperty("catalina.base"));
 
             // Matlab structure:
-            // Input = struct('dist', 0.9, 'azim', 0, 'orient', 'horz', 'dirweight', 0.2, 'outdir', '/tmp/wav', 'outname', 'foo.wav')
+            // Input = struct('dist', 0.9, 'azim', 0, 'orient', 'horz', 'dirweight', 0.2, 'outdir', '/tmp/wav', 'outname', 'foo.wav', 'indir', '/path/to/hrir')
 
-            String[] InputStructFields = {"dist", "azim", "orient", "dirweight", "outdir", "outname"};
+            String[] InputStructFields = {
+		"dist", "azim", "orient", "dirweight",
+		"outdir", "outname", "indir" 
+	    };
 
             Input = new MWStructArray(1, 1, InputStructFields);
             Input.set("dist", 1, Double.valueOf(dist));
             Input.set("azim", 1, Double.valueOf(azim));
-            Input.set("orient", 1, "horz");
-            Input.set("dirweight", 1, Double.valueOf(0.2));
-	    Input.set("outdir", 1, wavdir);
+            Input.set("orient", 1, orientation);
+            Input.set("dirweight", 1, Double.valueOf(dirweight));
+	    Input.set("outdir", 1, outdir);
+	    Input.set("indir", 1, indir);
 
             // the ofname should depend on the parameters
             StringBuilder sb = new StringBuilder();
@@ -140,7 +147,11 @@
 
         try{
             stream = response.getOutputStream();
-            File wavfile = new File(outputfname);
+
+	    String filename = outdir + "/" + outputfname + ".wav";
+	    logger.info("About to read WAV data from \"" + filename + "\"");
+
+            File wavfile = new File(filename);
 
             //set response headers
             response.setContentType("audio/x-wav");
@@ -149,24 +160,24 @@
 
             FileInputStream input = new FileInputStream(wavfile);
             buf = new BufferedInputStream(input);
-            int readBytes = 0;
 
-            //read from the file; write to the ServletOutputStream
-            while((readBytes = buf.read( )) != -1)
-                stream.write(readBytes);
+            int b = 0;
+	    int total = 0;
+
+            // read from the file; write to the ServletOutputStream
+            while ((b = buf.read()) != -1) {
+                stream.write(b);
+		total += 1;
+	    }
+
+	    logger.info("Successfully wrote " + total + " byte(s) to client");
 
         } catch (IOException ioe){
 	    logger.error("Failed to read wav data: " + ioe.getMessage());
             throw new ServletException(ioe.getMessage( ));
         } finally {
-            //close the input/output streams
-            if(stream != null)
-                stream.close( );
-
-            if(buf != null)
-                buf.close( );
-          }
-
-        logger.info("Wrote file: " + outputfname);
+            if (stream != null) stream.close();
+            if (buf != null) buf.close();
+	}
     }
 }