diff --git a/src/main/java/br/ufrgs/inf/prosoft/trace/reader/Mode.java b/src/main/java/br/ufrgs/inf/prosoft/trace/reader/Mode.java
new file mode 100644
index 0000000..74a9c3e
--- /dev/null
+++ b/src/main/java/br/ufrgs/inf/prosoft/trace/reader/Mode.java
@@ -0,0 +1,14 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package br.ufrgs.inf.prosoft.trace.reader;
+
+/**
+ *
+ * @author romulo
+ */
+public enum Mode {
+ COMPLETE, PARTIAL, HASHED;
+}
diff --git a/src/main/java/br/ufrgs/inf/prosoft/trace/tools/HashFile.java b/src/main/java/br/ufrgs/inf/prosoft/trace/tools/HashFile.java
new file mode 100644
index 0000000..4d14b69
--- /dev/null
+++ b/src/main/java/br/ufrgs/inf/prosoft/trace/tools/HashFile.java
@@ -0,0 +1,103 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package br.ufrgs.inf.prosoft.trace.tools;
+
+import br.ufrgs.inf.prosoft.trace.Parameter;
+import br.ufrgs.inf.prosoft.trace.Return;
+import br.ufrgs.inf.prosoft.trace.Trace;
+import br.ufrgs.inf.prosoft.trace.TraceConcrete;
+import br.ufrgs.inf.prosoft.trace.reader.TraceReader;
+import com.google.gson.Gson;
+import com.google.gson.JsonSyntaxException;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import java.util.function.Consumer;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+/**
+ *
+ * @author romulo
+ */
+public class HashFile {
+
+ private static final Logger logger = Logger.getLogger(HashFile.class.getName());
+
+ public static void main(String[] args) {
+ System.setProperty("java.util.logging.SimpleFormatter.format", "[%1$tF %1$tT+%1$tL] [%4$-7s] [Trace] %5$s %n");
+ String inputPath = null;
+ String outputPath = null;
+ if (args.length < 2) {
+ System.err.println("<InputTracePath> <OutputTracePath>");
+ System.exit(1);
+ } else {
+ inputPath = args[0];
+ outputPath = args[1];
+ }
+ try {
+ logger.log(Level.INFO, "Converting {0} traces", TraceReader.getLineCount(inputPath));
+ Stream<String> lines = Files.lines(Paths.get(inputPath));
+ FileWriter fileWriter = new FileWriter(outputPath, true);
+ lines.forEach(new Consumer<String>() {
+ private int index = 0;
+ private MessageDigest messageDigest;
+ private final Gson gson;
+
+ {
+ this.gson = new Gson();
+ try {
+ this.messageDigest = MessageDigest.getInstance("sha-512");
+ } catch (NoSuchAlgorithmException ex) {
+ }
+ }
+
+ private String digest(java.lang.Object object) {
+ return String.valueOf(messageDigest.digest(String.valueOf(object).getBytes()));
+ }
+
+ @Override
+ public void accept(String line) {
+ try {
+ Trace trace = gson.fromJson(line, TraceConcrete.class);
+ trace = new TraceConcrete(trace.getInstance(), trace.getModifiers(),
+ new Return(trace.getReturn().getType(), digest(trace.getReturn().getData())),
+ trace.getName(),
+ trace.getParameters().stream()
+ .map(parameter -> new Parameter(parameter.getType(), digest(parameter.getData())))
+ .collect(Collectors.toList()),
+ trace.getStartTime(), trace.getEndTime(), trace.getUserSession());
+ String toJson = gson.toJson(trace);
+ fileWriter.write(toJson);
+
+ System.out.print(".");
+ System.out.flush();
+ if (index != 0 && index % 100 == 0) {
+ System.out.println();
+ }
+ } catch (JsonSyntaxException e) {
+ if (line.length() > 2000) {
+ line = line.substring(0, 2000);
+ }
+ logger.log(Level.INFO, "Malformed Trace {0}: {1}", new java.lang.Object[]{index, line});
+ } catch (IOException ex) {
+ Logger.getLogger(HashFile.class.getName()).log(Level.SEVERE, null, ex);
+ } finally {
+ index++;
+ }
+ }
+ });
+ System.out.println();
+ } catch (IOException ex) {
+ logger.log(Level.SEVERE, null, ex);
+ }
+ }
+}
diff --git a/src/main/java/br/ufrgs/inf/prosoft/trace/TraceReference.java b/src/main/java/br/ufrgs/inf/prosoft/trace/TraceReference.java
index b86072d..6c7fbc3 100644
--- a/src/main/java/br/ufrgs/inf/prosoft/trace/TraceReference.java
+++ b/src/main/java/br/ufrgs/inf/prosoft/trace/TraceReference.java
@@ -5,6 +5,7 @@
*/
package br.ufrgs.inf.prosoft.trace;
+import br.ufrgs.inf.prosoft.trace.reader.Traces;
import java.util.List;
/**
