net.sf.jasperreports.engine.design.JRJdk13Compiler Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of jasperreports Show documentation
Show all versions of jasperreports Show documentation
Free Java Reporting Library
/*
* JasperReports - Free Java Reporting Library.
* Copyright (C) 2001 - 2019 TIBCO Software Inc. All rights reserved.
* http://www.jaspersoft.com
*
* Unless you have purchased a commercial license agreement from Jaspersoft,
* the following license terms apply:
*
* This program is part of JasperReports.
*
* JasperReports is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* JasperReports is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with JasperReports. If not, see .
*/
package net.sf.jasperreports.engine.design;
//import java.io.ByteArrayOutputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.PrintWriter;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import net.sf.jasperreports.engine.JRException;
import net.sf.jasperreports.engine.JasperReportsContext;
import net.sf.jasperreports.engine.util.JRClassLoader;
/**
* @author Teodor Danciu ([email protected])
*/
public class JRJdk13Compiler extends JRAbstractMultiClassCompiler
{
/**
*
*/
static final Log log = LogFactory.getLog(JRJdk13Compiler.class);
/**
*
*/
private static final int MODERN_COMPILER_SUCCESS = 0;
/**
*
*/
public JRJdk13Compiler(JasperReportsContext jasperReportsContext)
{
super(jasperReportsContext);
}
@Override
public String compileClasses(File[] sourceFiles, String classpath) throws JRException
{
String[] source = new String[sourceFiles.length + 2];
for (int i = 0; i < sourceFiles.length; i++)
{
source[i] = sourceFiles[i].getPath();
}
source[sourceFiles.length] = "-classpath";
source[sourceFiles.length + 1] = classpath;
String errors = null;
try
{
Class clazz = JRClassLoader.loadClassForRealName("com.sun.tools.javac.Main");
Object compiler = clazz.getDeclaredConstructor().newInstance();
try
{
Method compileMethod = clazz.getMethod("compile", new Class[] {String[].class, PrintWriter.class});
ByteArrayOutputStream baos = new ByteArrayOutputStream();
int result = (Integer)compileMethod.invoke(compiler, new Object[] {source, new PrintWriter(baos)});
if (result != MODERN_COMPILER_SUCCESS)
{
errors = baos.toString();
}
else
{
if (log.isInfoEnabled() && baos.size() > 0)
{
log.info(baos.toString());
}
}
}
catch (NoSuchMethodException ex)
{
Method compileMethod = clazz.getMethod("compile", new Class[] {String[].class});
int result = (Integer)compileMethod.invoke(compiler, new Object[] {source});
if (result != MODERN_COMPILER_SUCCESS)
{
errors = "See error messages above.";
}
}
}
catch (ClassNotFoundException | NoSuchMethodException | InvocationTargetException
| IllegalAccessException | InstantiationException e)
{
StringBuilder files = new StringBuilder();
for (int i = 0; i < sourceFiles.length; ++i)
{
files.append(sourceFiles[i].getPath());
files.append(' ');
}
throw
new JRException(
EXCEPTION_MESSAGE_KEY_JAVA_SOURCE_COMPILE_ERROR,
new Object[]{files},
e);
}
return errors;
}
}