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/*
@VaadinApache2LicenseForJavaFiles@
*/
package com.vaadin.terminal;
import java.io.IOException;
import java.io.InputStream;
import java.util.Collections;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Locale;
import java.util.Map;
import com.vaadin.Application;
import com.vaadin.external.json.JSONArray;
import com.vaadin.external.json.JSONException;
import com.vaadin.external.json.JSONObject;
import com.vaadin.terminal.gwt.server.WebApplicationContext;
import com.vaadin.terminal.gwt.server.WebBrowser;
/**
* A {@link WrappedRequest} with path and parameters from one request and
* {@link WrappedRequest.BrowserDetails} extracted from another request.
*
* This class is intended to be used for a two request initialization where the
* first request fetches the actual application page and the second request
* contains information extracted from the browser using javascript.
*
*/
public class CombinedRequest implements WrappedRequest {
private final WrappedRequest secondRequest;
private Map<String, String[]> parameterMap;
/**
* Creates a new combined request based on the second request and some
* details from the first request.
*
* @param secondRequest
* the second request which will be used as the foundation of the
* combined request
* @throws JSONException
* if the initialParams parameter can not be decoded
*/
public CombinedRequest(WrappedRequest secondRequest) throws JSONException {
this.secondRequest = secondRequest;
HashMap<String, String[]> map = new HashMap<String, String[]>();
JSONObject initialParams = new JSONObject(
secondRequest.getParameter("initialParams"));
for (Iterator<?> keys = initialParams.keys(); keys.hasNext();) {
String name = (String) keys.next();
JSONArray jsonValues = initialParams.getJSONArray(name);
String[] values = new String[jsonValues.length()];
for (int i = 0; i < values.length; i++) {
values[i] = jsonValues.getString(i);
}
map.put(name, values);
}
parameterMap = Collections.unmodifiableMap(map);
}
@Override
public String getParameter(String parameter) {
String[] strings = getParameterMap().get(parameter);
if (strings == null || strings.length == 0) {
return null;
} else {
return strings[0];
}
}
@Override
public Map<String, String[]> getParameterMap() {
return parameterMap;
}
@Override
public int getContentLength() {
return secondRequest.getContentLength();
}
@Override
public InputStream getInputStream() throws IOException {
return secondRequest.getInputStream();
}
@Override
public Object getAttribute(String name) {
return secondRequest.getAttribute(name);
}
@Override
public void setAttribute(String name, Object value) {
secondRequest.setAttribute(name, value);
}
@Override
public String getRequestPathInfo() {
return secondRequest.getParameter("initialPath");
}
@Override
public int getSessionMaxInactiveInterval() {
return secondRequest.getSessionMaxInactiveInterval();
}
@Override
public Object getSessionAttribute(String name) {
return secondRequest.getSessionAttribute(name);
}
@Override
public void setSessionAttribute(String name, Object attribute) {
secondRequest.setSessionAttribute(name, attribute);
}
@Override
public String getContentType() {
return secondRequest.getContentType();
}
@Override
public BrowserDetails getBrowserDetails() {
return new BrowserDetails() {
@Override
public String getUriFragment() {
String fragment = secondRequest.getParameter("fr");
if (fragment == null) {
return "";
} else {
return fragment;
}
}
@Override
public String getWindowName() {
return secondRequest.getParameter("wn");
}
@Override
public WebBrowser getWebBrowser() {
WebApplicationContext context = (WebApplicationContext) Application
.getCurrent().getContext();
return context.getBrowser();
}
};
}
/**
* Gets the original second request. This can be used e.g. if a request
* parameter from the second request is required.
*
* @return the original second wrapped request
*/
public WrappedRequest getSecondRequest() {
return secondRequest;
}
@Override
public Locale getLocale() {
return secondRequest.getLocale();
}
@Override
public String getRemoteAddr() {
return secondRequest.getRemoteAddr();
}
@Override
public boolean isSecure() {
return secondRequest.isSecure();
}
@Override
public String getHeader(String name) {
return secondRequest.getHeader(name);
}
@Override
public DeploymentConfiguration getDeploymentConfiguration() {
return secondRequest.getDeploymentConfiguration();
}
}
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