org.kevoree.platform.android.boot.utils.PrintStreamTraceLogger.java Source code

Introduction

Here is the source code for org.kevoree.platform.android.boot.utils.PrintStreamTraceLogger.java

Source

/**
 * Licensed under the GNU LESSER GENERAL PUBLIC LICENSE, Version 3, 29 June 2007;
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.gnu.org/licenses/lgpl-3.0.txt
 *
 * 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.
 */
/**
 * Licensed under the GNU LESSER GENERAL PUBLIC LICENSE, Version 3, 29 June 2007;
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.gnu.org/licenses/lgpl-3.0.txt
 *
 * 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 org.kevoree.platform.android.boot.utils;

import android.support.v4.app.FragmentActivity;
import android.widget.TextView;

import java.io.OutputStream;

/**
 * Created by jed
 * User: jedartois@gmail.com
 * Date: 09/03/12
 * Time: 11:39
 */
public class PrintStreamTraceLogger extends OutputStream {
    private TextView _textArea = null;
    private int _color = 0;
    StringBuilder currentLine = new StringBuilder();
    FragmentActivity ctx;

    public PrintStreamTraceLogger(FragmentActivity ctx, TextView textArea, int color) {
        _textArea = textArea;
        _color = color;
        this.ctx = ctx;
    }

    @Override
    public void write(final int b) {
        ctx.runOnUiThread(new Runnable() {
            @Override
            public void run() {
                try {
                    if (b == (int) '\n') {
                        currentLine.append("\n");
                        if (!currentLine.toString().startsWith("Error reading from ")) {

                            _textArea.append(currentLine);
                            final int scrollAmount = _textArea.getLayout().getLineTop(_textArea.getLineCount())
                                    - _textArea.getHeight();

                            if (scrollAmount > 0)
                                _textArea.scrollTo(0, scrollAmount);
                            else
                                _textArea.scrollTo(0, 0);

                            _textArea.setTextColor(_color);
                            currentLine = new StringBuilder();
                        }

                    } else {
                        currentLine.append((char) b);
                    }

                } catch (Exception e) {
                    e.printStackTrace();
                }

            }
        });

    }

}