// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
package org.chromium.debug.ui.actions;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import org.chromium.debug.core.ChromiumDebugPlugin;
import org.chromium.sdk.LiveEditExtension;
import org.chromium.sdk.UpdatableScript;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
/**
* The main action of LiveEdit feature. It gets the current state of a working file and pushes
* it into running V8 VM.
*/
public class PushChangesAction extends V8ScriptAction {
@Override
protected void execute(final FilePair filePair) {
UpdatableScript updatableScript =
LiveEditExtension.castToUpdatableScript(filePair.getVmResource().getScript());
if (updatableScript == null) {
throw new RuntimeException();
}
byte[] fileData;
try {
fileData = readFileContents(filePair.getFile());
} catch (IOException e) {
throw new RuntimeException(e);
} catch (CoreException e) {
throw new RuntimeException(e);
}
// We are using default charset here like usually.
String newSource = new String(fileData);
UpdatableScript.UpdateCallback callback = new UpdatableScript.UpdateCallback() {
public void success(Object report) {
ChromiumDebugPlugin.log(new Status(IStatus.OK, ChromiumDebugPlugin.PLUGIN_ID,
"Script has been successfully updated on remote: " + report)); //$NON-NLS-1$
}
public void failure(String message) {
ChromiumDebugPlugin.log(new Status(IStatus.ERROR, ChromiumDebugPlugin.PLUGIN_ID,
"Failed to change script on remote: " + message)); //$NON-NLS-1$
}
};
updatableScript.setSourceOnRemote(newSource, callback, null);
}
private static byte[] readFileContents(IFile file) throws IOException, CoreException {
InputStream inputStream = file.getContents();
try {
return readBytes(inputStream);
} finally {
inputStream.close();
}
}
private static byte[] readBytes(InputStream inputStream) throws IOException {
ByteArrayOutputStream buffer = new ByteArrayOutputStream();
byte[] array = new byte[1024];
while (true) {
int len = inputStream.read(array);
if (len == -1) {
break;
}
buffer.write(array, 0, len);
}
return buffer.toByteArray();
}
}