JavaClassPathAccessibleClassProvider.java

/*
 *  Copyright 2013, Arondor
 *
 *  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 com.arondor.common.reflection.parser.java;

import java.io.File;

import org.apache.log4j.Logger;

import com.arondor.common.reflection.api.catalog.AccessibleClassCatalog;

/**
 * Parse all class path in search of classes
 * 
 * @author Francois Barre
 * 
 */
public class JavaClassPathAccessibleClassProvider extends AbstractJavaAccessibleClassProvider
{
    private static final Logger LOG = Logger.getLogger(JavaAccessibleClassParser.class);

    public void provideClasses(AccessibleClassCatalog catalog)
    {
        doParse(catalog);
    }

    private void doParse(AccessibleClassCatalog catalog)
    {
        LOG.info("Parsing classpath for prefixes : ");
        for (String prefix : getPackagePrefixes())
        {
            LOG.info("* " + prefix);
        }

        doScanClasspathForPackages(catalog);
    }

    protected void doScanClasspathForPackages(AccessibleClassCatalog catalog)
    {
        String classpath = System.getProperty("java.class.path");
        LOG.info("Scanning classpath : " + classpath);
        char separator[] = { File.pathSeparatorChar };
        String classpathItem[] = classpath.split(new String(separator));

        for (int idx = 0; idx < classpathItem.length; idx++)
        {
            String path = classpathItem[idx];
            File pathFile = new File(path);
            if (path.endsWith(".jar"))
            {
                scanJar(catalog, pathFile);
            }
            else if (pathFile.exists() && pathFile.isDirectory())
            {
                scanDirectory(catalog, pathFile);
            }
            else
            {
                LOG.warn("Do not known how to handle classpath : " + pathFile.getAbsolutePath());
            }
        }
    }

}