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package com.sun.jersey.server.impl.container.servlet;
import com.sun.jersey.api.container.ContainerException;
import com.sun.jersey.api.core.HttpContext;
import com.sun.jersey.api.core.ResourceConfig;
import com.sun.jersey.api.view.Viewable;
import com.sun.jersey.core.reflection.ReflectionHelper;
import com.sun.jersey.spi.container.servlet.ServletContainer;
import com.sun.jersey.spi.template.ViewProcessor;
import java.io.IOException;
import java.io.OutputStream;
import java.net.MalformedURLException;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.ws.rs.core.Context;
/**
* A JSP template processor.
*
* @author Paul.Sandoz@Sun.Com
*/
public class JSPTemplateProcessor implements ViewProcessor<String> {
private @Context HttpContext hc;
private @Context ServletContext servletContext;
private @Context ThreadLocal<HttpServletRequest> requestInvoker;
private @Context ThreadLocal<HttpServletResponse> responseInvoker;
private final String basePath;
public JSPTemplateProcessor(
@Context ResourceConfig resourceConfig) {
String path = (String)resourceConfig.getProperties().get(
ServletContainer.JSP_TEMPLATES_BASE_PATH);
if (path == null)
this.basePath = "";
else if (path.charAt(0) == '/') {
this.basePath = path;
} else {
this.basePath = "/" + path;
}
}
public String resolve(String path) {
if (servletContext == null)
return null;
if (basePath != "")
path = basePath + path;
try {
if (servletContext.getResource(path) != null) {
return path;
}
if (!path.endsWith(".jsp")) {
path = path + ".jsp";
if (servletContext.getResource(path) != null) {
return path;
}
}
} catch (MalformedURLException ex) {
// TODO log
}
return null;
}
public void writeTo(String resolvedPath, Viewable viewable, OutputStream out) throws IOException {
if (hc.isTracingEnabled()) {
hc.trace(String.format("forwarding view to JSP page: \"%s\", it = %s",
resolvedPath,
ReflectionHelper.objectToString(viewable.getModel())));
}
// Commit the status and headers to the HttpServletResponse
out.flush();
RequestDispatcher d = servletContext.getRequestDispatcher(resolvedPath);
if (d == null) {
throw new ContainerException("No request dispatcher for: " + resolvedPath);
}
d = new RequestDispatcherWrapper(d, basePath, hc, viewable);
try {
d.forward(requestInvoker.get(), responseInvoker.get());
} catch (Exception e) {
throw new ContainerException(e);
}
}
}