src/com/android/tradefed/log/LogReceiver.java

package com.android.tradefed.log;

import com.android.tradefed.device.BackgroundDeviceAction;
import com.android.tradefed.device.ITestDevice;
import com.android.tradefed.device.LargeOutputReceiver;
import com.android.tradefed.result.ITestInvocationListener;
import com.android.tradefed.result.InputStreamSource;
import com.android.tradefed.result.LogDataType;

public class LogReceiver {
    private BackgroundDeviceAction mDeviceAction;
    private LargeOutputReceiver mReceiver;
    private String mDesc;

    private static final int DELAY = 5;
    private static final int LOG_SIZE = 20 * 1024 * 1024;

    public LogReceiver(ITestDevice device, String cmd, String desc) {
        this(device, cmd, LOG_SIZE, DELAY, desc);
    }

    public LogReceiver(ITestDevice device, String cmd, String desc,
            long logcat_size,int delay_secs) {
        this(device, cmd, logcat_size, delay_secs, desc);
    }

    private LogReceiver(ITestDevice device, String cmd,
            long maxFileSize, int logStartDelay, String desc) {

        mReceiver = new LargeOutputReceiver(desc, device.getSerialNumber(),
                maxFileSize);
        mDeviceAction = new BackgroundDeviceAction(cmd, desc, device,
                mReceiver, logStartDelay);
        mDesc = desc;
    }

    public String getDescriptor() {
        return mDesc;
    }

    public void start() {
        mDeviceAction.start();
    }

    public void stop() {
        mDeviceAction.cancel();
        mReceiver.cancel();
        mReceiver.delete();
    }

    public InputStreamSource getData() {
        return mReceiver.getData();
    }

    public InputStreamSource getLogcatData(int maxBytes) {
        return mReceiver.getData(maxBytes);
    }

    public void clear() {
        mReceiver.clear();
    }

    public void postLog(ITestInvocationListener listener) {
        listener.testLog(getDescriptor(), LogDataType.TEXT, getData());
    }
}