/*
* Jopr Management Platform
* Copyright (C) 2005-2008 Red Hat, Inc.
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License, version 2, as
* published by the Free Software Foundation, and/or the GNU Lesser
* General Public License, version 2.1, also as published by the Free
* Software Foundation.
*
* This program 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 General Public License and the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License
* and the GNU Lesser General Public License along with this program;
* if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package com.jboss.jbossnetwork.product.jbpm.handlers;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import org.jbpm.graph.exe.ExecutionContext;
import org.rhq.core.domain.content.PackageDetailsKey;
import org.rhq.core.pluginapi.content.ContentContext;
import org.rhq.core.pluginapi.content.ContentServices;
/**
* JBPM action handler that is responsible for downloading the bits for the patch and writing them out to a temporary
* file.
*
* @author Jason Dobies
*/
public class JONServerDownloadActionHandler extends BaseHandler {
private String destinationFileLocation;
public void run(ExecutionContext executionContext) {
try {
PackageDetailsKey key = (PackageDetailsKey) executionContext
.getVariable(ContextVariables.PACKAGE_DETAILS_KEY);
ContentContext contentContext = (ContentContext) executionContext
.getVariable(ContextVariables.CONTENT_CONTEXT);
downloadBits(key, contentContext);
complete(executionContext, "Successfully downloaded file to ["
+ HandlerUtils.formatPath(destinationFileLocation) + "].");
} catch (Throwable t) {
error(executionContext, t, "Failed to download file to [" +
HandlerUtils.formatPath(destinationFileLocation) + "].", TRANSITION_ERROR);
}
}
public void downloadBits(PackageDetailsKey key, ContentContext contentContext) throws IOException,
ActionHandlerException {
ContentServices contentServices = contentContext.getContentServices();
// Open a stream to where the downloaded file should go
FileOutputStream output = new FileOutputStream(destinationFileLocation);
BufferedOutputStream bufferedOutput = new BufferedOutputStream(output, 4096);
// Request the bits from the server
try {
contentServices.downloadPackageBits(contentContext, key, bufferedOutput, true);
bufferedOutput.close();
// Verify the file was created correctly
File downloadedFile = new File(destinationFileLocation);
if (!downloadedFile.exists()) {
throw new ActionHandlerException("File to download [" + destinationFileLocation + "] does not exist");
}
if (downloadedFile.length() == 0) {
throw new ActionHandlerException("File [" + destinationFileLocation + "] is empty");
}
} finally {
// Close the stream if there was an error thrown from downloadPackageBits
try {
bufferedOutput.close();
} catch (IOException e1) {
logger.error("Error closing output stream to [" + destinationFileLocation + "] after exception", e1);
}
}
}
@Override
public String getDescription() {
return "Download file from the server and save it to [" + HandlerUtils.formatPath(destinationFileLocation)
+ "].";
}
@Override
public void setPropertyDefaults() {
if (destinationFileLocation == null) {
destinationFileLocation = "#{downloadFolder}/#{software.filename}";
}
}
@Override
protected void checkProperties() throws ActionHandlerException {
HandlerUtils.checkIsSet("destinationFileLocation", destinationFileLocation);
}
@Override
public void substituteVariables(ExecutionContext executionContext) throws ActionHandlerException {
destinationFileLocation = substituteVariable(destinationFileLocation, executionContext);
}
public String getDestinationFileLocation() {
return destinationFileLocation;
}
public void setDestinationFileLocation(String destinationFileLocation) {
this.destinationFileLocation = destinationFileLocation;
}
}