diff --git a/src/com/android/loganalysis/item/TransitionDelayItem.java b/src/com/android/loganalysis/item/TransitionDelayItem.java
new file mode 100644
index 0000000000000000000000000000000000000000..33a1b9331915273d7169ade9d65b051f652253e1
--- /dev/null
+++ b/src/com/android/loganalysis/item/TransitionDelayItem.java
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.loganalysis.item;
+
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.Set;
+
+/**
+ * An {@link IItem} used to TransitionDelayInfo.
+ */
+public class TransitionDelayItem extends GenericItem {
+
+ /** Constant for JSON output */
+ public static final String COMPONENT_NAME = "COMPONENT_NAME";
+ /** Constant for JSON output */
+ public static final String START_WINDOW_DELAY = "START_WINDOW_DELAY";
+ /** Constant for JSON output */
+ public static final String TRANSITION_DELAY = "TRANSITION_DELAY";
+
+ private static final Set<String> ATTRIBUTES = new HashSet<String>(Arrays.asList(
+ COMPONENT_NAME, START_WINDOW_DELAY, TRANSITION_DELAY));
+
+ /**
+ * The constructor for {@link TransitionDelayItem}.
+ */
+ public TransitionDelayItem() {
+ super(ATTRIBUTES);
+ }
+
+ public String getComponentName() {
+ return (String) getAttribute(COMPONENT_NAME);
+ }
+
+ public void setComponentName(String componentName) {
+ setAttribute(COMPONENT_NAME, componentName);
+ }
+
+ public long getStartingWindowDelay() {
+ return (long) getAttribute(START_WINDOW_DELAY);
+ }
+
+ public void setStartingWindowDelay(long startingWindowDelay) {
+ setAttribute(START_WINDOW_DELAY, startingWindowDelay);
+ }
+
+ public long getTransitionDelay() {
+ return (long) getAttribute(TRANSITION_DELAY);
+ }
+
+ public void setTransitionDelay(long transitionDelay) {
+ setAttribute(TRANSITION_DELAY, transitionDelay);
+ }
+
+}
diff --git a/src/com/android/loganalysis/parser/EventsLogParser.java b/src/com/android/loganalysis/parser/EventsLogParser.java
new file mode 100644
index 0000000000000000000000000000000000000000..068feeb15f52168a6384dd579784d43c2bb8478e
--- /dev/null
+++ b/src/com/android/loganalysis/parser/EventsLogParser.java
@@ -0,0 +1,111 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.loganalysis.parser;
+
+import com.android.loganalysis.item.IItem;
+import com.android.loganalysis.item.TransitionDelayItem;
+
+import java.io.IOException;
+import java.io.BufferedReader;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+/**
+ * Parse the events logs. </p>
+ */
+public class EventsLogParser implements IParser {
+
+ // 08-21 17:53:53.876 1053 2135 I am_restart_activity:
+ // [0,188098346,127,com.google.android.gm/.ConversationListActivityGmail]
+ private static final Pattern ACTIVITY_RESTART = Pattern.compile("^\\d{2}-\\d{2} \\d{2}:\\d{2}"
+ + ":\\d{2}.\\d{3}\\s+\\d+\\s+\\d+ I am_restart_activity: "
+ + "\\[\\d+\\,\\d+\\,\\d+\\,(?<componentname>.*)\\]$");
+ // 08-21 17:57:15.363 1053 2095 I am_resume_activity:
+ // [0,228277756,132,com.google.android.gm/.ConversationListActivityGmail]
+ private static final Pattern ACTIVITY_RESUME = Pattern.compile("^\\d{2}-\\d{2} \\d{2}:\\d{2}"
+ + ":\\d{2}.\\d{3}\\s+\\d+\\s+\\d+ I am_resume_activity: "
+ + "\\[\\d+\\,\\d+\\,\\d+\\,(?<componentname>.*)\\]$");
+ // 08-21 17:53:53.893 1053 1115 I sysui_action: [321,74]
+ private static final Pattern STARTING_WINDOW_DELAY = Pattern.compile("^\\d{2}-\\d{2} \\d{2}:"
+ + "\\d{2}:\\d{2}.\\d{3}\\s+\\d+\\s+\\d+ I sysui_action: \\[321,(?<startdelay>.*)\\]$");
+ // 08-21 17:54:16.672 1053 1115 I sysui_action: [319,99]
+ private static final Pattern TRANSITION_DELAY = Pattern
+ .compile("^\\d{2}-\\d{2} \\d{2}:"
+ + "\\d{2}:\\d{2}.\\d{3}\\s+\\d+\\s+\\d+ I sysui_action: \\[319,"
+ + "(?<transitdelay>.*)\\]$");
+
+ @Override
+ public IItem parse(List<String> lines) {
+ throw new UnsupportedOperationException("Method has not been implemented in lieu"
+ + " of others");
+ }
+
+ /**
+ * Method to parse the transition delay information from the events log
+ *
+ * @param input
+ * @return
+ * @throws IOException
+ */
+ public List<TransitionDelayItem> parseTransitionDelayInfo(BufferedReader input)
+ throws IOException {
+ List<TransitionDelayItem> transitionDelayItems = new ArrayList<TransitionDelayItem>();
+ String line;
+ List<String> componentNameStack = new ArrayList<String>();
+ boolean isRecentStartWindowDelay = false;
+ while ((line = input.readLine()) != null) {
+ Matcher match = null;
+ if (((match = matches(ACTIVITY_RESTART, line))) != null ||
+ ((match = matches(ACTIVITY_RESUME, line)) != null)) {
+ componentNameStack.add(match.group("componentname"));
+ isRecentStartWindowDelay = false;
+ } else if (((match = matches(STARTING_WINDOW_DELAY, line)) != null)
+ && (componentNameStack.size() > 0)) {
+ TransitionDelayItem delayItem = new TransitionDelayItem();
+ delayItem.setComponentName(
+ componentNameStack.remove(componentNameStack.size() - 1));
+ delayItem.setStartingWindowDelay(Long.parseLong(match.group("startdelay")));
+ delayItem.setTransitionDelay(-1);
+ transitionDelayItems.add(delayItem);
+ isRecentStartWindowDelay = true;
+ } else if (((match = matches(TRANSITION_DELAY, line)) != null)
+ && (componentNameStack.size() > 0) && !isRecentStartWindowDelay) {
+ TransitionDelayItem delayItem = new TransitionDelayItem();
+ delayItem.setComponentName(
+ componentNameStack.remove(componentNameStack.size() - 1));
+ delayItem.setTransitionDelay(Long.parseLong(match.group("transitdelay")));
+ delayItem.setStartingWindowDelay(-1);
+ transitionDelayItems.add(delayItem);
+ }
+ }
+ return transitionDelayItems;
+ }
+
+ /**
+ * Checks whether {@code line} matches the given {@link Pattern}.
+ *
+ * @return The resulting {@link Matcher} obtained by matching the {@code line} against
+ * {@code pattern}, or null if the {@code line} does not match.
+ */
+ private static Matcher matches(Pattern pattern, String line) {
+ Matcher ret = pattern.matcher(line);
+ return ret.matches() ? ret : null;
+ }
+
+}
diff --git a/tests/src/com/android/loganalysis/parser/EventsLogParserTest.java b/tests/src/com/android/loganalysis/parser/EventsLogParserTest.java
new file mode 100644
index 0000000000000000000000000000000000000000..092473eb9b0f0779234aebe0f4478ad1384ae91b
--- /dev/null
+++ b/tests/src/com/android/loganalysis/parser/EventsLogParserTest.java
@@ -0,0 +1,214 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.loganalysis.parser;
+
+import com.android.loganalysis.item.TransitionDelayItem;
+import com.android.loganalysis.parser.EventsLogParser;
+
+import java.io.BufferedWriter;
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileWriter;
+import java.io.FileInputStream;
+import java.io.InputStreamReader;
+import java.io.IOException;
+import java.util.Arrays;
+import java.util.List;
+
+import junit.framework.TestCase;
+
+/**
+ * Unit tests for {@link EventsLogParser}.
+ */
+public class EventsLogParserTest extends TestCase {
+
+ private File mTempFile = null;
+
+ /**
+ * Test for empty events logs passed to the transition delay parser
+ */
+ public void testEmptyEventsLog() throws IOException {
+ List<String> lines = Arrays.asList("");
+ List<TransitionDelayItem> transitionItems = (new EventsLogParser()).
+ parseTransitionDelayInfo(readInputBuffer(getTempFile(lines)));
+ assertTrue("Transition Delay items list should be empty", transitionItems.size() == 0);
+ }
+
+ /**
+ * Test for no transition delay info in the events log
+ */
+ public void testNoTransitionDelayInfo() throws IOException {
+ List<String> lines = Arrays
+ .asList(
+ "08-25 12:56:15.850 1152 8968 I am_focused_stack: [0,0,1,appDied setFocusedActivity]",
+ "08-25 12:56:15.850 1152 8968 I wm_task_moved: [6,1,1]",
+ "08-25 12:56:15.852 1152 8968 I am_focused_activity: [0,com.google.android.apps.nexuslauncher/.NexusLauncherActivity,appDied]",
+ "08-25 12:56:15.852 1152 8968 I wm_task_removed: [27,removeTask]",
+ "08-25 12:56:15.852 1152 8968 I wm_stack_removed: 1");
+ List<TransitionDelayItem> transitionItems = (new EventsLogParser()).
+ parseTransitionDelayInfo(readInputBuffer(getTempFile(lines)));
+ assertTrue("Transition Delay items list should be empty", transitionItems.size() == 0);
+ }
+
+ /**
+ * Test for Cold launch transition delay info
+ */
+ public void testColdLaunchTransitionDelay() throws IOException {
+ List<String> lines = Arrays.asList("08-25 13:01:19.412 1152 9031 I am_restart_activity: [0,85290699,38,com.google.android.gm/.ConversationListActivityGmail]",
+ "08-25 13:01:19.437 1152 1226 I sysui_action: [321,85]",
+ "08-25 13:01:19.437 1152 1226 I sysui_action: [320,1]",
+ "08-25 13:01:19.437 1152 1226 I sysui_action: [319,85]");
+ List<TransitionDelayItem> transitionItems = (new EventsLogParser()).
+ parseTransitionDelayInfo(readInputBuffer(getTempFile(lines)));
+ assertTrue("Transition Delay items list should have one item",
+ transitionItems.size() == 1);
+ assertTrue("Component name not parsed correctly",
+ transitionItems.get(0).getComponentName().equals(
+ "com.google.android.gm/.ConversationListActivityGmail"));
+ assertTrue("Cold launch info is not set correctly",
+ transitionItems.get(0).getStartingWindowDelay() == 85);
+ assertTrue("Hot launch info is set which is not expected",
+ transitionItems.get(0).getTransitionDelay() == -1);
+ }
+
+ /**
+ * Test for Hot launch transition delay
+ */
+ public void testHotLaunchTransitionDelay() throws IOException {
+ List<String> lines = Arrays
+ .asList("08-25 13:02:04.740 1152 2715 I am_resume_activity: [0,85290699,38,com.google.android.gm/.ConversationListActivityGmail]",
+ "08-25 13:02:04.754 1152 1180 I sysui_count: [window_time_0,23]",
+ "08-25 13:02:04.755 1152 1226 I sysui_action: [320,0]",
+ "08-25 13:02:04.755 1152 1226 I sysui_action: [319,37]");
+ List<TransitionDelayItem> transitionItems = (new EventsLogParser()).
+ parseTransitionDelayInfo(readInputBuffer(getTempFile(lines)));
+ assertTrue("Transition Delay items list shopuld have one item",
+ transitionItems.size() == 1);
+ assertTrue("Component name not parsed correctly",
+ transitionItems.get(0).getComponentName().equals(
+ "com.google.android.gm/.ConversationListActivityGmail"));
+ assertTrue("Cold launch info is set which is not expected",
+ transitionItems.get(0).getStartingWindowDelay() == -1);
+ assertTrue("Hot launch info is not set correctly",
+ transitionItems.get(0).getTransitionDelay() == 37);
+ }
+
+ /**
+ * Test for same app transition delay items order after parsing from the events log
+ */
+ public void testTransitionDelayOrder() throws IOException {
+ List<String> lines = Arrays
+ .asList("08-25 13:01:19.412 1152 9031 I am_restart_activity: [0,85290699,38,com.google.android.gm/.ConversationListActivityGmail]",
+ "08-25 13:01:19.437 1152 1226 I sysui_action: [321,85]",
+ "08-25 13:01:19.437 1152 1226 I sysui_action: [320,1]",
+ "08-25 13:01:19.437 1152 1226 I sysui_action: [319,85]",
+ "08-25 12:56:15.850 1152 8968 I am_focused_stack: [0,0,1,appDied setFocusedActivity]",
+ "08-25 12:56:15.850 1152 8968 I wm_task_moved: [6,1,1]",
+ "08-25 12:56:15.852 1152 8968 I am_focused_activity: [0,com.google.android.apps.nexuslauncher/.NexusLauncherActivity,appDied]",
+ "08-25 12:56:15.852 1152 8968 I wm_task_removed: [27,removeTask]",
+ "08-25 12:56:15.852 1152 8968 I wm_stack_removed: 1",
+ "08-25 13:02:04.740 1152 2715 I am_resume_activity: [0,85290699,38,com.google.android.gm/.ConversationListActivityGmail]",
+ "08-25 13:02:04.754 1152 1180 I sysui_count: [window_time_0,23]",
+ "08-25 13:02:04.755 1152 1226 I sysui_action: [320,0]",
+ "08-25 13:02:04.755 1152 1226 I sysui_action: [319,37]");
+ List<TransitionDelayItem> transitionItems = (new EventsLogParser()).
+ parseTransitionDelayInfo(readInputBuffer(getTempFile(lines)));
+ assertTrue("Transition Delay items list should have two items",
+ transitionItems.size() == 2);
+ assertTrue("Cold launch transition delay is not the first item",
+ (transitionItems.get(0).getStartingWindowDelay() == 85));
+ assertTrue("Hot launch transition delay is not the second item",
+ (transitionItems.get(1).getTransitionDelay() == 37));
+ }
+
+ /**
+ * Test for two different different apps transition delay items
+ */
+ public void testDifferentAppTransitionDelay() throws IOException {
+ List<String> lines = Arrays
+ .asList("08-25 13:01:19.412 1152 9031 I am_restart_activity: [0,85290699,38,com.google.android.gm/.ConversationListActivityGmail]",
+ "08-25 13:01:19.437 1152 1226 I sysui_action: [321,85]",
+ "08-25 13:01:19.437 1152 1226 I sysui_action: [320,1]",
+ "08-25 13:01:19.437 1152 1226 I sysui_action: [319,85]",
+ "08-25 12:56:15.850 1152 8968 I am_focused_stack: [0,0,1,appDied setFocusedActivity]",
+ "08-25 12:56:15.850 1152 8968 I wm_task_moved: [6,1,1]",
+ "08-25 12:56:15.852 1152 8968 I am_focused_activity: [0,com.google.android.apps.nexuslauncher/.NexusLauncherActivity,appDied]",
+ "08-25 12:56:15.852 1152 8968 I wm_task_removed: [27,removeTask]",
+ "08-25 12:56:15.852 1152 8968 I wm_stack_removed: 1",
+ "08-25 13:03:35.528 1152 2715 I am_restart_activity: [0,32358360,39,com.google.android.apps.maps/com.google.android.maps.MapsActivity]",
+ "08-25 13:03:35.540 1152 1179 I am_pss : [7727,10032,com.google.android.apps.nexuslauncher,50991104,45486080,0]",
+ "08-25 13:03:35.566 1152 1179 I am_pss : [9207,10045,com.google.android.googlequicksearchbox:search,111955968,102227968,0]",
+ "08-25 13:03:35.569 1152 1226 I sysui_action: [321,92]",
+ "08-25 13:03:35.569 1152 1226 I sysui_action: [320,1]",
+ "08-25 13:03:35.569 1152 1226 I sysui_action: [319,92]");
+ List<TransitionDelayItem> transitionItems = (new EventsLogParser()).
+ parseTransitionDelayInfo(readInputBuffer(getTempFile(lines)));
+ assertTrue("Transition Delay items list should have two items",
+ transitionItems.size() == 2);
+ assertTrue("Gmail is not the first transition delay item",
+ transitionItems.get(0).getComponentName().equals(
+ "com.google.android.gm/.ConversationListActivityGmail"));
+ assertTrue("Maps is not the second transition delay item",
+ transitionItems.get(1).getComponentName().equals(
+ "com.google.android.apps.maps/com.google.android.maps.MapsActivity"));
+ }
+
+ /**
+ * Test for invalid transition delay items pattern
+ */
+ public void testInvalidTransitionPattern() throws IOException {
+ List<String> lines = Arrays
+ .asList("08-25 13:01:19.412 1152 9031 I am_restart_activity: [com.google.android.gm/.ConversationListActivityGmail,0,85290699,38]",
+ "08-25 13:01:19.437 1152 1226 I sysui_action: [321,85]",
+ "08-25 13:01:19.437 1152 1226 I sysui_action: [320,1]",
+ "08-25 13:01:19.437 1152 1226 I sysui_action: [319,85]",
+ "08-25 12:56:15.850 1152 8968 I am_focused_stack: [0,0,1,appDied setFocusedActivity]",
+ "08-25 12:56:15.850 1152 8968 I wm_task_moved: [6,1,1]",
+ "08-25 12:56:15.852 1152 8968 I am_focused_activity: [0,com.google.android.apps.nexuslauncher/.NexusLauncherActivity,appDied]",
+ "08-25 12:56:15.852 1152 8968 I wm_task_removed: [27,removeTask]",
+ "08-25 12:56:15.852 1152 8968 I wm_stack_removed: 1",
+ "08-25 13:02:04.740 1152 2715 I am_res_activity: [0,85290699,38,com.google.android.gm/.ConversationListActivityGmail]",
+ "08-25 13:02:04.754 1152 1180 I sysui_count: [window_time_0,23]",
+ "08-25 13:02:04.755 1152 1226 I sysui_action: [320,0]",
+ "08-25 13:02:04.755 1152 1226 I sysui_action: [319,37]");
+ List<TransitionDelayItem> transitionItems = (new EventsLogParser()).
+ parseTransitionDelayInfo(readInputBuffer(getTempFile(lines)));
+ assertTrue("Transition Delay items list should be empty", transitionItems.size() == 0);
+ }
+
+ /**
+ * Write list of strings to file and use it for testing.
+ */
+ public File getTempFile(List<String> sampleEventsLogs) throws IOException {
+ mTempFile = File.createTempFile("events_logcat", ".txt");
+ BufferedWriter out = new BufferedWriter(new FileWriter(mTempFile));
+ for (String line : sampleEventsLogs) {
+ out.write(line);
+ out.newLine();
+ }
+ out.close();
+ return mTempFile;
+ }
+
+ /**
+ * Reader to read the input from the given temp file
+ */
+ public BufferedReader readInputBuffer(File tempFile) throws IOException {
+ return (new BufferedReader(new InputStreamReader(new FileInputStream(tempFile))));
+ }
+
+}
\ No newline at end of file