ro.nextreports.engine.util.NextChartUtil Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of nextreports-engine Show documentation
Show all versions of nextreports-engine Show documentation
NextReports Engine is a lightweight Java platform development library which
can be used to run NextReports inside your applications.
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 ro.nextreports.engine.util;
import com.thoughtworks.xstream.XStream;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import ro.nextreports.engine.XStreamFactory;
import ro.nextreports.engine.chart.Chart;
/**
* User: mihai.panaitescu
* Date: 12-Jan-2010
* Time: 16:59:41
*/
public class NextChartUtil {
public static byte CHART_VALID = 1;
public static byte CHART_INVALID_NEWER = 2;
public static Chart loadChart(InputStream is) {
XStream xstream = XStreamFactory.createXStream();
InputStreamReader reader = null;
try {
reader = new InputStreamReader(is, "UTF-8");
return (Chart) xstream.fromXML(reader);
} catch (Exception e1) {
e1.printStackTrace();
return null;
}
}
public static String getVersion(String chartFile) {
FileInputStream fis;
try {
String text = ReportUtil.readAsString(chartFile);
return getVersionFromText(text);
} catch (IOException e) {
return null;
}
}
public static String getVersion(byte[] reportContent) {
String text = new String(reportContent);
return getVersionFromText(text);
}
public static String getVersionFromText(String reportText) {
String start = "