org.jbpm.jpdl.par.ResourceAction.java Source code

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Here is the source code for org.jbpm.jpdl.par.ResourceAction.java

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/*
 * JBoss, Home of Professional Open Source
 * Copyright 2005, JBoss Inc., and individual contributors as indicated
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * This 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 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software 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 this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package org.jbpm.jpdl.par;

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URL;

import junit.framework.Assert;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.jbpm.graph.def.ActionHandler;
import org.jbpm.graph.exe.ExecutionContext;

public class ResourceAction implements ActionHandler {

    private static final long serialVersionUID = 1L;

    static Log log = LogFactory.getLog(ProcessArchiveClassLoadingDbTest.class);

    public void execute(ExecutionContext executionContext) throws Exception {
        Assert.assertEquals("org.jbpm.jpdl.par", getClass().getPackage().getName());

        URL resource = getClass().getResource("classresource.txt");
        InputStream stream = resource.openStream();
        String classResourceUrl = read(stream);
        Assert.assertEquals("the class resource content", classResourceUrl);

        stream = getClass().getResourceAsStream("classresource.txt");
        String classResourceStream = read(stream);
        Assert.assertEquals("the class resource content", classResourceStream);

        ClassLoader resourceActionClassLoader = ResourceAction.class.getClassLoader();
        log.info("resource action classloader: " + getClass().getClassLoader());
        log.info("parent of resource action classloader: " + getClass().getClassLoader().getParent());
        resource = resourceActionClassLoader.getResource("org/jbpm/jpdl/par/classresource.txt");
        stream = resource.openStream();
        String classLoaderResourceUrl = read(stream);
        Assert.assertEquals("the class resource content", classLoaderResourceUrl);

        stream = resourceActionClassLoader.getResourceAsStream("org/jbpm/jpdl/par/classresource.txt");
        String classLoaderResourceStream = read(stream);
        Assert.assertEquals("the class resource content", classLoaderResourceStream);

        resource = getClass().getResource("//archiveresource.txt");
        stream = resource.openStream();
        String archiveResourceUrl = read(stream);
        Assert.assertEquals("the archive resource content", archiveResourceUrl);

        stream = getClass().getResourceAsStream("//archiveresource.txt");
        String archiveResourceStream = read(stream);
        Assert.assertEquals("the archive resource content", archiveResourceStream);

        resource = resourceActionClassLoader.getResource("//archiveresource.txt");
        stream = resource.openStream();
        String archiveClassLoaderResourceUrl = read(stream);
        Assert.assertEquals("the archive resource content", archiveClassLoaderResourceUrl);

        stream = resourceActionClassLoader.getResourceAsStream("//archiveresource.txt");
        String archiveClassLoaderResourceStream = read(stream);
        Assert.assertEquals("the archive resource content", archiveClassLoaderResourceStream);

        ClassLoader contextClassLoader = Thread.currentThread().getContextClassLoader();
        log.info("resource action context classloader: " + contextClassLoader);
        log.info("parent of resource action context classloader: " + contextClassLoader.getParent());
        resource = contextClassLoader.getResource("//archiveresource.txt");
        stream = resource.openStream();
        String contextClassLoaderResourceUrl = read(stream);
        Assert.assertEquals("the archive resource content", contextClassLoaderResourceUrl);

        stream = contextClassLoader.getResourceAsStream("//archiveresource.txt");
        String contextClassLoaderResourceStream = read(stream);
        Assert.assertEquals("the archive resource content", contextClassLoaderResourceStream);

        try {
            getClass().getResourceAsStream("unexistingresource.txt");
        } catch (RuntimeException e) {
            // ok
        }

        try {
            resourceActionClassLoader.getResourceAsStream("org/jbpm/jpdl/par/unexistingresource.txt");
        } catch (RuntimeException e) {
            // ok
        }

        try {
            getClass().getResourceAsStream("//unexistingarchiveresource.txt");
        } catch (RuntimeException e) {
            // ok
        }
        try {
            resourceActionClassLoader.getResourceAsStream("//unexistingarchiveresource.txt");
        } catch (RuntimeException e) {
            // ok
        }
    }

    static String read(InputStream resourceAsStream) throws Exception {
        BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(resourceAsStream));
        StringBuffer buffer = new StringBuffer();
        String l;
        while ((l = bufferedReader.readLine()) != null) {
            buffer.append(l);
        }
        return buffer.toString();
    }
}