// TODO(mdsteele): Make a cleaner API than this (will need to change some other classes).
public synchronized JSONObject getMetrics() {
JSONObject obj = new JSONObject();
Json.put(obj, "time_to_first_byte_ms", this.timeToFirstByteMillis);
Json.put(obj, "time_to_base_page_complete_ms", this.timeToBasePageCompleteMillis);
Json.put(obj, "load_time_ms", this.loadTimeMillis);
return obj;
}
// Callback for fetchResourceContent().
private synchronized void handleResourceContent(String requestId, JSONObject result) {
try {
this.testData.addResourceContent(
requestId, Json.getString(result, "body"), Json.getBoolean(result, "base64Encoded"));
this.checkIfDone();
} catch (JsonException e) {
this.abortTest("Bad JSON from Chrome: " + e.getMessage());
}
}
// Callback for fetchDomTree().
private synchronized void handleDomTree(JSONObject result) {
assert this.phase == Phase.FETCHING_DOM;
this.phase = Phase.FINISHING;
try {
this.testData.setDomString(Json.getString(Json.getObject(result, "result"), "value"));
this.checkIfDone();
} catch (JsonException e) {
this.abortTest("Bad JSON from Chrome: " + e.getMessage());
}
}
public synchronized void addResourceContent(
String requestId, String body, boolean isBase64Encoded) {
JSONObject result = new JSONObject();
Json.put(result, "content", body);
Json.put(result, "base64Encoded", isBase64Encoded);
JSONObject obj = new JSONObject();
Json.put(obj, "method", "__Internal.resourceContent");
Json.put(obj, "requestId", requestId);
Json.put(obj, "result", result);
this.dataForHar.add(obj);
}
// Ask the tab to load the given URL.
private synchronized void startLoadingUrl(String url) {
// A previous version of Chrome had a "Page.load" method, but that has since been removed (at
// least as of M16). Simply evaluating "window.location.href=url" seems to work fine,
// though.
JSONObject params = new JSONObject();
Json.put(params, "expression", "window.location.href=" + JSONValue.toJSONString(url));
Json.put(params, "returnByValue", true);
this.tab.asyncCall(
"Runtime.evaluate",
params,
new Callback() {
public void onSuccess(JSONObject result) {}
});
}
// Receive a notification message from the Chrome tab.
@Override
public synchronized void handleNotification(String method, JSONObject params) {
this.testData.addDataForHar(method, params);
try {
if (this.phase == Phase.ABOUT_BLANK) {
// Once we've loaded about:blank, we can begin the real test.
if (method.equals("Page.loadEventFired")) {
this.resetBrowserAndBeginLoadingPage();
}
} else if (method.equals("Network.requestWillBeSent")) {
if (this.mainRequestId == null) {
this.mainRequestId = Json.getString(params, REQUEST_ID_KEY);
}
} else if (method.equals("Network.loadingFinished")
|| method.equals("Network.resourceLoadedFromMemoryCache")) {
this.fetchResourceContent(Json.getString(params, REQUEST_ID_KEY));
} else if (method.equals("Network.responseReceived")) {
if (this.mainRequestId != null
&& this.mainRequestId.equals(Json.getString(params, REQUEST_ID_KEY))) {
this.startTimestampMillis =
1000.0
* Json.getDouble(
Json.getObject(Json.getObject(params, "response"), "timing"),
"requestTime");
this.testData.setTimeToFirstByteMillis(
1000.0 * Json.getDouble(params, "timestamp") - this.startTimestampMillis);
}
} else if (method.equals("Page.domContentEventFired")) {
if (!Double.isNaN(this.startTimestampMillis)) {
this.testData.setTimeToBasePageCompleteMillis(
1000.0 * Json.getDouble(params, "timestamp") - this.startTimestampMillis);
} else {
this.abortTest("Saw Page.domContentEventFired before receiving main response");
}
} else if (method.equals("Page.loadEventFired")) {
if (!Double.isNaN(this.startTimestampMillis)) {
this.testData.setLoadTimeMillis(
1000.0 * Json.getDouble(params, "timestamp") - this.startTimestampMillis);
this.fetchDomTree();
} else {
this.abortTest("Saw Page.loadEventFired before receiving main response");
}
} else if (method.equals("Timeline.eventRecorded")) {
this.testData.addTimelineEvent(Json.getObject(params, "record"));
}
} catch (JsonException e) {
this.abortTest("Bad JSON from Chrome: " + e.getMessage());
}
}
// Enter the FETCHING_DOM phase; ask the Chrome tab to retrieve the DOM tree from the page.
private synchronized void fetchDomTree() {
assert this.phase == Phase.LOADING_PAGE;
this.phase = Phase.FETCHING_DOM;
JSONObject params = new JSONObject();
Json.put(params, "expression", DOM_COLLECTOR_SCRIPT);
Json.put(params, "returnByValue", true);
this.tab.asyncCall(
"Runtime.evaluate",
params,
new Callback() {
public void onSuccess(JSONObject response) {
RunnerImpl.this.handleDomTree(response);
}
});
}
// Ask the Chrome tab to retrieve the contents of the specified resource. The requestId object
// is some key object given to us by the Chrome tab.
private synchronized void fetchResourceContent(final String requestId) {
JSONObject params = new JSONObject();
Json.put(params, REQUEST_ID_KEY, requestId);
this.tab.asyncCall(
"Network.getResponseBody",
params,
new AsyncCallback() {
public void onSuccess(JSONObject response) {
RunnerImpl.this.handleResourceContent(requestId, response);
}
public void onError(String message) {
// Some resources just don't have data; that's okay, so if that's the error we got,
// ignore it.
if (!message.equals("No data found for resource with given identifier")) {
RunnerImpl.this.abortTest(message);
}
}
});
}
// TODO(mdsteele): Make a cleaner API than this (will need to change TestRunner).
public synchronized void addDataForHar(String methodName, JSONObject params) {
JSONObject obj = new JSONObject();
Json.put(obj, "method", methodName);
Json.put(obj, "params", params);
this.dataForHar.add(obj);
}
/** Append a single event record to the timeline data. */
public synchronized void addTimelineEvent(JSONObject record) {
Json.add(this.timelineData, record);
}