/*
* NCSSParserWrapper.java
*
* Copyright (c) 2007
*
* Licensed 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 org.dcarew.javancss.metrics;
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import javancss.JavaParser;
import javancss.ParseException;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.IPath;
/**
*
*
* @author Devon Carew
*/
public class NCSSParserWrapper
{
public NCSSParserWrapper()
{
}
public NCSSMetrics parse(IResource resource)
{
return parse(resource, new NCSSMetrics());
}
public NCSSMetrics parse(IResource resource, NCSSMetrics metrics)
{
if (resource.getLocation() == null)
return null;
IPath path = resource.getLocation();
File file = new File(path.toOSString());
if (!file.exists() || !file.canRead())
return null;
try
{
metrics.incFileCount();
metrics.incByteCount(file.length());
InputStream in = new BufferedInputStream(new FileInputStream(file), 10240);
JavaParser ncssParser = new JavaParser(in);
ncssParser.CompilationUnit();
metrics.incPackageCount(ncssParser.getPackage());
metrics.incNCSSCount(ncssParser.getNcss());
metrics.incLOCCount(ncssParser.getLOC());
metrics.incJavaDocCount(ncssParser.getJvdc());
metrics.incCycCount(ncssParser.getFunction());
safeClose(in);
return metrics;
}
catch (FileNotFoundException fnfe)
{
fnfe.printStackTrace();
return null;
}
catch (ParseException pe)
{
return null;
}
}
private void safeClose(InputStream in)
{
try
{
if (in != null)
in.close();
}
catch (IOException ioe)
{
}
}
}