/*
* 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.jboss.ejb3.packagemanager.retriever.impl;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.jboss.ejb3.packagemanager.PackageManagerContext;
import org.jboss.ejb3.packagemanager.exception.PackageRetrievalException;
import org.jboss.ejb3.packagemanager.retriever.PackageRetriever;
/**
* HttpPackageRetriever
*
* @author Jaikiran Pai
* @version $Revision: $
*/
public class HttpPackageRetriever implements PackageRetriever
{
/**
* @see org.jboss.ejb3.packagemanager.retriever.PackageRetriever#retrievePackage(PackageManagerContext, URL)
*/
@Override
public File retrievePackage(PackageManagerContext pkgMgrCtx, URL packagePath) throws PackageRetrievalException
{
if (!packagePath.getProtocol().equals("http"))
{
throw new PackageRetrievalException("Cannot handle " + packagePath);
}
HttpClient httpClient = new DefaultHttpClient();
HttpGet httpGet = new HttpGet(packagePath.toExternalForm());
HttpResponse httpResponse = null;
try
{
httpResponse = httpClient.execute(httpGet);
}
catch (Exception e)
{
throw new PackageRetrievalException("Exception while retrieving package " + packagePath, e);
}
if (httpResponse.getStatusLine().getStatusCode() != HttpStatus.SC_OK)
{
throw new PackageRetrievalException("Http retrieval wasn't successful, returned status code "
+ httpResponse.getStatusLine().getStatusCode());
}
HttpEntity httpEntity = httpResponse.getEntity();
try
{
// TODO: should this tmp be deleted on exit?
File tmpPkgFile = File.createTempFile("tmp", ".jar", pkgMgrCtx.getPackageManagerEnvironment()
.getPackageManagerTmpDir());
FileOutputStream fos = new FileOutputStream(tmpPkgFile);
BufferedOutputStream bos = null;
BufferedInputStream bis = null;
try
{
bos = new BufferedOutputStream(fos);
InputStream is = httpEntity.getContent();
bis = new BufferedInputStream(is);
byte[] content = new byte[4096];
int length;
while ((length = bis.read(content)) != -1)
{
bos.write(content, 0, length);
}
bos.flush();
}
finally
{
if (bos != null)
{
bos.close();
}
if (bis != null)
{
bis.close();
}
}
return tmpPkgFile;
}
catch (IOException ioe)
{
throw new PackageRetrievalException("Could not process the retrieved package", ioe);
}
// TODO: I need to read the HttpClient 4.x javadocs to figure out the API for closing the
// Http connection
}
}