From 19ebea8b952e8efaba7d18c87f309cb3f2620dff Mon Sep 17 00:00:00 2001
From: rusefi <rusefillc@gmail.com>
Date: Fri, 22 Nov 2019 16:29:39 -0500
Subject: [PATCH] chrome tracing is pretty cool

---
 .../models/src/com/rusefi/tracing/Entry.java  | 56 +++++++++++++++++++
 .../models/src/com/rusefi/tracing/Phase.java  |  7 +++
 .../com/rusefi/tracing/test/EntryTest.java    | 17 ++++++
 3 files changed, 80 insertions(+)
 create mode 100644 java_console/models/src/com/rusefi/tracing/Entry.java
 create mode 100644 java_console/models/src/com/rusefi/tracing/Phase.java
 create mode 100644 java_console/models/src/com/rusefi/tracing/test/EntryTest.java

diff --git a/java_console/models/src/com/rusefi/tracing/Entry.java b/java_console/models/src/com/rusefi/tracing/Entry.java
new file mode 100644
index 0000000000..0fd9dedc01
--- /dev/null
+++ b/java_console/models/src/com/rusefi/tracing/Entry.java
@@ -0,0 +1,56 @@
+package com.rusefi.tracing;
+
+public class Entry {
+    private final String name;
+    private final Phase phase;
+    private final double timestampSeconds;
+
+    public Entry(String name, Phase phase, double timestampSeconds) {
+        this.name = name;
+        this.phase = phase;
+        this.timestampSeconds = timestampSeconds;
+    }
+
+    private static void AppendKeyValuePair(StringBuilder sb, String x, String y) {
+        sb.append('"');
+        sb.append(x);
+        sb.append("\":\"");
+        sb.append(y);
+        sb.append('"');
+    }
+
+    private static void AppendKeyValuePair(StringBuilder sb, String x, int y) {
+        sb.append('"');
+        sb.append(x);
+        sb.append("\":");
+        sb.append(y);
+    }
+
+    private static void AppendKeyValuePair(StringBuilder sb, String x, double y) {
+        sb.append('"');
+        sb.append(x);
+        sb.append("\":");
+        sb.append(y);
+    }
+
+    @Override
+    public String toString() {
+        StringBuilder sb = new StringBuilder();
+
+        sb.append("{");
+        AppendKeyValuePair(sb, "name", name);
+
+        sb.append(",");
+        AppendKeyValuePair(sb, "ph", phase.toString());
+        sb.append(",");
+        AppendKeyValuePair(sb, "tid", 0);
+        sb.append(",");
+
+        AppendKeyValuePair(sb, "pid", 0);
+        sb.append(",");
+        AppendKeyValuePair(sb, "ts", timestampSeconds);
+        sb.append("}");
+
+        return sb.toString();
+    }
+}
diff --git a/java_console/models/src/com/rusefi/tracing/Phase.java b/java_console/models/src/com/rusefi/tracing/Phase.java
new file mode 100644
index 0000000000..fceb035743
--- /dev/null
+++ b/java_console/models/src/com/rusefi/tracing/Phase.java
@@ -0,0 +1,7 @@
+package com.rusefi.tracing;
+
+public enum Phase {
+    B,
+    E,
+    i,
+}
diff --git a/java_console/models/src/com/rusefi/tracing/test/EntryTest.java b/java_console/models/src/com/rusefi/tracing/test/EntryTest.java
new file mode 100644
index 0000000000..9f826f1343
--- /dev/null
+++ b/java_console/models/src/com/rusefi/tracing/test/EntryTest.java
@@ -0,0 +1,17 @@
+package com.rusefi.tracing.test;
+
+import com.rusefi.tracing.Entry;
+import com.rusefi.tracing.Phase;
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+
+public class EntryTest {
+    @Test
+    public void testToString() {
+        Entry e = new Entry("hello", Phase.E, 0.1);
+
+        assertEquals("{\"name\":\"hello\",\"ph\":\"E\",\"tid\":0,\"pid\":0,\"ts\":0.1}", e.toString());
+
+    }
+}