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/*******************************************************************************
* Copyright (c) 2004, 2007 Boeing.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Boeing - initial API and implementation
*******************************************************************************/
package org.eclipse.osee.framework.manager.servlet;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URLConnection;
import java.util.HashMap;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.eclipse.osee.framework.core.exception.OseeCoreException;
import org.eclipse.osee.framework.core.exception.OseeExceptions;
import org.eclipse.osee.framework.core.model.Branch;
import org.eclipse.osee.framework.core.model.cache.BranchCache;
import org.eclipse.osee.framework.core.server.UnsecuredOseeHttpServlet;
import org.eclipse.osee.framework.core.services.IOseeCachingService;
import org.eclipse.osee.framework.jdk.core.type.Pair;
import org.eclipse.osee.framework.jdk.core.type.PropertyStore;
import org.eclipse.osee.framework.jdk.core.util.Lib;
import org.eclipse.osee.framework.jdk.core.util.Strings;
import org.eclipse.osee.framework.manager.servlet.data.ArtifactUtil;
import org.eclipse.osee.framework.manager.servlet.data.DefaultOseeArtifact;
import org.eclipse.osee.framework.manager.servlet.data.HttpArtifactFileInfo;
import org.eclipse.osee.framework.resource.management.IResource;
import org.eclipse.osee.framework.resource.management.IResourceLocator;
import org.eclipse.osee.framework.resource.management.IResourceManager;
import org.eclipse.osee.framework.resource.management.StandardOptions;
import org.eclipse.osee.logger.Log;
import org.osgi.framework.FrameworkUtil;
/**
* @author Roberto E. Escobar
*/
public class ArtifactFileServlet extends UnsecuredOseeHttpServlet {
private static final long serialVersionUID = -6334080268467740905L;
private final IResourceManager resourceManager;
private final BranchCache branchCache;
private static Map<Integer, String> branchIdToGuidMap;
public ArtifactFileServlet(Log logger, IResourceManager resourceManager, IOseeCachingService cachingService) {
super(logger);
this.resourceManager = resourceManager;
this.branchCache = cachingService.getBranchCache();
}
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {
try {
HttpArtifactFileInfo artifactFileInfo = null;
String servletPath = request.getServletPath();
// System.out.println("servletPath: " + servletPath);
if (!Strings.isValid(servletPath) || "/".equals(servletPath) || "/index".equals(servletPath)) {
// Enumeration<?> enumeration = request.getHeaderNames();
// while (enumeration.hasMoreElements()) {
// String headerField = (String) enumeration.nextElement();
// String value = request.getHeader(headerField);
// System.out.println(String.format("%s: %s", headerField, value));
// }
Pair<String, String> defaultArtifact = DefaultOseeArtifact.get();
if (defaultArtifact != null) {
artifactFileInfo =
new HttpArtifactFileInfo(defaultArtifact.getFirst(), null, null, defaultArtifact.getSecond());
}
} else {
artifactFileInfo = new HttpArtifactFileInfo(request);
}
String uri = null;
if (artifactFileInfo != null) {
Branch branch = null;
if (artifactFileInfo.isBranchNameValid()) {
branch = branchCache.getBySoleName(artifactFileInfo.getBranchName());
} else if (artifactFileInfo.isBranchGuidValid()) {
branch = branchCache.getByGuid(artifactFileInfo.getBranchGuid());
} else {
int branchId = artifactFileInfo.getId();
if (branchId != HttpArtifactFileInfo.INVALID_BRANCH_ID) {
loadIdToGuidMapping();
branch = branchCache.getByGuid(branchIdToGuidMap.get(branchId));
}
}
uri = ArtifactUtil.getUri(artifactFileInfo.getGuid(), branch);
}
handleArtifactUri(resourceManager, request.getQueryString(), uri, response);
} catch (NumberFormatException ex) {
handleError(response, HttpServletResponse.SC_BAD_REQUEST,
String.format("Invalid Branch Id: [%s]", request.getQueryString()), ex);
} catch (Exception ex) {
handleError(response, HttpServletResponse.SC_INTERNAL_SERVER_ERROR,
String.format("Unable to acquire resource: [%s]", request.getQueryString()), ex);
} finally {
response.flushBuffer();
}
}
public static void handleArtifactUri(IResourceManager resourceManager, String request, String uri, HttpServletResponse response) throws OseeCoreException {
boolean wasProcessed = false;
if (Strings.isValid(uri)) {
IResourceLocator locator = resourceManager.getResourceLocator(uri);
PropertyStore options = new PropertyStore();
options.put(StandardOptions.DecompressOnAquire.name(), true);
IResource resource = resourceManager.acquire(locator, options);
if (resource != null) {
wasProcessed = true;
InputStream inputStream = null;
try {
inputStream = resource.getContent();
response.setStatus(HttpServletResponse.SC_OK);
response.setContentLength(inputStream.available());
response.setCharacterEncoding("ISO-8859-1");
String mimeType = URLConnection.guessContentTypeFromStream(inputStream);
if (mimeType == null) {
mimeType = URLConnection.guessContentTypeFromName(resource.getLocation().toString());
if (mimeType == null) {
mimeType = "application/*";
}
}
response.setContentType(mimeType);
if (!mimeType.equals("text/html")) {
response.setHeader("Content-Disposition", "attachment; filename=" + resource.getName());
}
Lib.inputStreamToOutputStream(inputStream, response.getOutputStream());
response.flushBuffer();
} catch (IOException ex) {
OseeExceptions.wrapAndThrow(ex);
} finally {
Lib.close(inputStream);
}
}
}
if (!wasProcessed) {
response.setStatus(HttpServletResponse.SC_NOT_FOUND);
response.setContentType("text/plain");
try {
response.getWriter().write(String.format("Unable to find resource: [%s]", request));
} catch (IOException ex) {
OseeExceptions.wrapAndThrow(ex);
}
}
}
private void handleError(HttpServletResponse response, int status, String message, Throwable ex) throws IOException {
response.setStatus(status);
response.setContentType("text/plain");
getLogger().error(ex, message);
response.getWriter().write(Lib.exceptionToString(ex));
}
private synchronized void loadIdToGuidMapping() {
if (branchIdToGuidMap == null) {
branchIdToGuidMap = new HashMap<Integer, String>();
BufferedReader reader = null;
try {
reader =
new BufferedReader(new InputStreamReader(FrameworkUtil.getBundle(ArtifactFileServlet.class).getResource(
"templates/branchIdToBranchGuid.txt").openStream()));
String branchIdAndGuidLine = null;
while ((branchIdAndGuidLine = reader.readLine()) != null) {
String[] idAndGuid = branchIdAndGuidLine.split(",");
int branchId;
try {
branchId = Integer.parseInt(idAndGuid[0]);
} catch (Exception ex) {
branchId = -1;
}
branchIdToGuidMap.put(branchId, idAndGuid[1].trim());
}
} catch (Exception e) {
getLogger().error(e, "Error mapping branchIds to guids");
} finally {
Lib.close(reader);
}
}
}
}
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