/*
* (non-Javadoc)
*
* @see org.apache.struts2.dispatcher.multipart.MultiPartRequest#getFile(java.lang.String)
*/
public File[] getFile(String fieldName) {
List<FileItem> items = files.get(fieldName);
if (items == null) {
return null;
}
List<File> fileList = new ArrayList<File>(items.size());
for (FileItem fileItem : items) {
File storeLocation = ((DiskFileItem) fileItem).getStoreLocation();
if (fileItem.isInMemory() && storeLocation != null && !storeLocation.exists()) {
try {
storeLocation.createNewFile();
} catch (IOException e) {
if (LOG.isErrorEnabled()) {
LOG.error(
"Cannot write uploaded empty file to disk: " + storeLocation.getAbsolutePath(), e);
}
}
}
fileList.add(storeLocation);
}
return fileList.toArray(new File[fileList.size()]);
}
/**
* Load configurations, including both XML and zero-configuration strategies, and update optional
* settings, including whether to reload configurations and resource files.
*/
public void init() {
if (configurationManager == null) {
configurationManager = createConfigurationManager(BeanSelectionProvider.DEFAULT_BEAN_NAME);
}
try {
init_FileManager();
init_DefaultProperties(); // [1]
init_TraditionalXmlConfigurations(); // [2]
init_LegacyStrutsProperties(); // [3]
init_CustomConfigurationProviders(); // [5]
init_FilterInitParameters(); // [6]
init_AliasStandardObjects(); // [7]
Container container = init_PreloadConfiguration();
container.inject(this);
init_CheckWebLogicWorkaround(container);
if (!dispatcherListeners.isEmpty()) {
for (DispatcherListener l : dispatcherListeners) {
l.dispatcherInitialized(this);
}
}
} catch (Exception ex) {
if (LOG.isErrorEnabled()) LOG.error("Dispatcher initialization failed", ex);
throw new StrutsException(ex);
}
}
private void closeQuietly(InputStream is) {
try {
if (is != null) is.close();
} catch (IOException e) {
if (LOG.isErrorEnabled()) LOG.error("Unable to close input stream", e);
}
}
/**
* Send an HTTP error response code.
*
* @param request the HttpServletRequest object.
* @param response the HttpServletResponse object.
* @param code the HttpServletResponse error code (see {@link
* javax.servlet.http.HttpServletResponse} for possible error codes).
* @param e the Exception that is reported.
* @param ctx the ServletContext object.
*/
public void sendError(
HttpServletRequest request,
HttpServletResponse response,
ServletContext ctx,
int code,
Exception e) {
Boolean devModeOverride = FilterDispatcher.getDevModeOverride();
if (devModeOverride != null ? devModeOverride : devMode) {
if (LOG.isDebugEnabled()) {
LOG.debug("Exception occurred during processing request: #0", e, e.getMessage());
}
try {
FreemarkerManager mgr = getContainer().getInstance(FreemarkerManager.class);
freemarker.template.Configuration config = mgr.getConfiguration(ctx);
Template template = config.getTemplate("/org/apache/struts2/dispatcher/error.ftl");
List<Throwable> chain = new ArrayList<Throwable>();
Throwable cur = e;
chain.add(cur);
while ((cur = cur.getCause()) != null) {
chain.add(cur);
}
HashMap<String, Object> data = new HashMap<String, Object>();
data.put("exception", e);
data.put("unknown", Location.UNKNOWN);
data.put("chain", chain);
data.put("locator", new Locator());
Writer writer = new StringWriter();
template.process(data, writer);
response.setContentType("text/html");
response.getWriter().write(writer.toString());
response.getWriter().close();
} catch (Exception exp) {
try {
if (LOG.isDebugEnabled()) {
LOG.debug("Cannot show problem report!", exp);
}
response.sendError(
code,
"Unable to show problem report:\n" + exp + "\n\n" + LocationUtils.getLocation(exp));
} catch (IOException ex) {
// we're already sending an error, not much else we can do if more stuff breaks
}
}
} else {
try {
if (LOG.isErrorEnabled()) {
LOG.error("Exception occurred during processing request: #0", e, e.getMessage());
}
// WW-1977: Only put errors in the request when code is a 500 error
if (code == HttpServletResponse.SC_INTERNAL_SERVER_ERROR) {
// send a http error response to use the servlet defined error handler
// make the exception availible to the web.xml defined error page
request.setAttribute("javax.servlet.error.exception", e);
// for compatibility
request.setAttribute("javax.servlet.jsp.jspException", e);
}
// send the error response
response.sendError(code, e.getMessage());
} catch (IOException e1) {
// we're already sending an error, not much else we can do if more stuff breaks
}
}
}
/**
* Creates any result types from the resources available in the web application. This scans the
* web application resources using the servlet context.
*
* @param actionClass The action class the results are being built for.
* @param results The results map to put the result configs created into.
* @param resultPath The calculated path to the resources.
* @param resultPrefix The prefix for the result. This is usually <code>/resultPath/actionName
* </code>.
* @param actionName The action name which is used only for logging in this implementation.
* @param packageConfig The package configuration which is passed along in order to determine
* @param resultsByExtension The map of extensions to result type configuration instances.
*/
protected void createFromResources(
Class<?> actionClass,
Map<String, ResultConfig> results,
final String resultPath,
final String resultPrefix,
final String actionName,
PackageConfig packageConfig,
Map<String, ResultTypeConfig> resultsByExtension) {
if (LOG.isTraceEnabled()) {
LOG.trace(
"Searching for results in the Servlet container at [#0]" + " with result prefix of [#1]",
resultPath,
resultPrefix);
}
// Build from web application using the ServletContext
@SuppressWarnings("unchecked")
Set<String> paths =
servletContext.getResourcePaths(flatResultLayout ? resultPath : resultPrefix);
if (paths != null) {
for (String path : paths) {
if (LOG.isTraceEnabled()) {
LOG.trace("Processing resource path [#0]", path);
}
String fileName = StringUtils.substringAfterLast(path, "/");
if (StringUtils.isBlank(fileName) || StringUtils.startsWith(fileName, ".")) {
if (LOG.isTraceEnabled()) LOG.trace("Ignoring file without name [#0]", path);
continue;
} else if (fileName.lastIndexOf(".") > 0) {
String suffix = fileName.substring(fileName.lastIndexOf(".") + 1);
if (conventionsService.getResultTypesByExtension(packageConfig).get(suffix) == null) {
if (LOG.isDebugEnabled())
LOG.debug(
"No result type defined for file suffix : [#0]. Ignoring file #1",
suffix,
fileName);
continue;
}
}
makeResults(actionClass, path, resultPrefix, results, packageConfig, resultsByExtension);
}
}
// Building from the classpath
String classPathLocation =
resultPath.startsWith("/") ? resultPath.substring(1, resultPath.length()) : resultPath;
if (LOG.isTraceEnabled()) {
LOG.trace(
"Searching for results in the class path at [#0]"
+ " with a result prefix of [#1] and action name [#2]",
classPathLocation,
resultPrefix,
actionName);
}
ResourceFinder finder = new ResourceFinder(classPathLocation, getClassLoaderInterface());
try {
Map<String, URL> matches = finder.getResourcesMap("");
if (matches != null) {
Test<URL> resourceTest = getResourceTest(resultPath, actionName);
for (Map.Entry<String, URL> entry : matches.entrySet()) {
if (resourceTest.test(entry.getValue())) {
if (LOG.isTraceEnabled()) {
LOG.trace("Processing URL [#0]", entry.getKey());
}
String urlStr = entry.getValue().toString();
int index = urlStr.lastIndexOf(resultPrefix);
String path = urlStr.substring(index);
makeResults(
actionClass, path, resultPrefix, results, packageConfig, resultsByExtension);
}
}
}
} catch (IOException ex) {
if (LOG.isErrorEnabled())
LOG.error("Unable to scan directory [#0] for results", ex, classPathLocation);
}
}