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/*
* Copyright (C) 2012 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.ide.eclipse.ddms.systrace;
import com.android.ddmlib.CollectingOutputReceiver;
import com.android.ddmlib.IDevice;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.jface.operation.IRunnableWithProgress;
import java.lang.reflect.InvocationTargetException;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class SystraceVersionDetector implements IRunnableWithProgress {
public static final int SYSTRACE_V1 = 1;
public static final int SYSTRACE_V2 = 2;
private final IDevice mDevice;
private List<SystraceTag> mTags;
public SystraceVersionDetector(IDevice device) {
mDevice = device;
}
@Override
public void run(IProgressMonitor monitor) throws InvocationTargetException,
InterruptedException {
monitor.beginTask("Checking systrace version on device..",
IProgressMonitor.UNKNOWN);
CountDownLatch setTagLatch = new CountDownLatch(1);
CollectingOutputReceiver receiver = new CollectingOutputReceiver(setTagLatch);
try {
String cmd = "atrace --list_categories";
mDevice.executeShellCommand(cmd, receiver);
setTagLatch.await(5, TimeUnit.SECONDS);
} catch (Exception e) {
throw new InvocationTargetException(e);
}
String shellOutput = receiver.getOutput();
mTags = parseSupportedTags(shellOutput);
monitor.done();
}
public int getVersion() {
if (mTags == null) {
return SYSTRACE_V1;
} else {
return SYSTRACE_V2;
}
}
public List<SystraceTag> getTags() {
return mTags;
}
private List<SystraceTag> parseSupportedTags(String listCategoriesOutput) {
if (listCategoriesOutput == null) {
return null;
}
if (listCategoriesOutput.contains("unknown option")) {
return null;
}
String[] categories = listCategoriesOutput.split("\n");
List<SystraceTag> tags = new ArrayList<SystraceTag>(categories.length);
Pattern p = Pattern.compile("([^-]+) - (.*)"); //$NON-NLS-1$
for (String category : categories) {
Matcher m = p.matcher(category);
if (m.find()) {
tags.add(new SystraceTag(m.group(1).trim(), m.group(2).trim()));
}
}
return tags;
}
}
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