1 files changed, 48 insertions, 0 deletions

diff --git a/src/uk/ac/ox/cs/pagoda/util/SimpleProgressBar.java b/src/uk/ac/ox/cs/pagoda/util/SimpleProgressBar.java
new file mode 100644
index 0000000..3c4aad7
--- /dev/null
+++ b/src/uk/ac/ox/cs/pagoda/util/SimpleProgressBar.java
@@ -0,0 +1,48 @@
+package uk.ac.ox.cs.pagoda.util;
+
+import uk.ac.ox.cs.pagoda.util.disposable.Disposable;
+
+public class SimpleProgressBar extends Disposable {
+
+    private final String name;
+    private int lastPercent;
+    private int maxValue;
+
+    public SimpleProgressBar() {
+        this("");
+    }
+
+    public SimpleProgressBar(String name) {
+        this(name, 100);
+    }
+
+    public SimpleProgressBar(String name, int maxValue) {
+        this.name = name;
+        this.maxValue = maxValue;
+    }
+
+    public void update(int value) {
+        int percent = value * 100 / maxValue;
+        StringBuilder template = new StringBuilder("\r" + name + " [");
+        for (int i = 0; i < 50; i++) {
+            if (i < percent * .5) {
+                template.append("=");
+            } else if (i == percent * .5) {
+                template.append(">");
+            } else {
+                template.append(" ");
+            }
+        }
+        template.append("] %s   ");
+        System.out.printf(template.toString(), percent + "%");
+        System.out.flush();
+        lastPercent = percent;
+    }
+
+    @Override
+    public void dispose() {
+        super.dispose();
+
+        System.out.println();
+    }
+}