/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.falcon.resource.channel;

import javax.servlet.RequestDispatcher;
import javax.servlet.ServletInputStream;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.security.Principal;
import java.util.Enumeration;
import java.util.Locale;
import java.util.Map;

public class NullServletRequest implements HttpServletRequest {

    @Override
    public String getAuthType() {
        return null;
    }

    @Override
    public Cookie[] getCookies() {
        return new Cookie[0];
    }

    @Override
    public long getDateHeader(String s) {
        return 0;
    }

    @Override
    public String getHeader(String s) {
        return s;
    }

    @Override
    public Enumeration getHeaders(String s) {
        return null;
    }

    @Override
    public Enumeration getHeaderNames() {
        return null;
    }

    @Override
    public int getIntHeader(String s) {
        return 0;
    }

    @Override
    public String getMethod() {
        return null;
    }

    @Override
    public String getPathInfo() {
        return null;
    }

    @Override
    public String getPathTranslated() {
        return null;
    }

    @Override
    public String getContextPath() {
        return null;
    }

    @Override
    public String getQueryString() {
        return null;
    }

    @Override
    public String getRemoteUser() {
        return "user";
    }

    @Override
    public boolean isUserInRole(String s) {
        return false;
    }

    @Override
    public Principal getUserPrincipal() {
        return null;
    }

    @Override
    public String getRequestedSessionId() {
        return null;
    }

    @Override
    public String getRequestURI() {
        return null;
    }

    @Override
    public StringBuffer getRequestURL() {
        return null;
    }

    @Override
    public String getServletPath() {
        return null;
    }

    @Override
    public HttpSession getSession(boolean b) {
        return null;
    }

    @Override
    public HttpSession getSession() {
        return null;
    }

    @Override
    public boolean isRequestedSessionIdValid() {
        return false;
    }

    @Override
    public boolean isRequestedSessionIdFromCookie() {
        return false;
    }

    @Override
    public boolean isRequestedSessionIdFromURL() {
        return false;
    }

    @Override
    public boolean isRequestedSessionIdFromUrl() {
        return false;
    }

    @Override
    public Object getAttribute(String s) {
        return null;
    }

    @Override
    public Enumeration getAttributeNames() {
        return null;
    }

    @Override
    public String getCharacterEncoding() {
        return null;
    }

    @Override
    public void setCharacterEncoding(String s) throws UnsupportedEncodingException {
    }

    @Override
    public int getContentLength() {
        return 0;
    }

    @Override
    public String getContentType() {
        return null;
    }

    private static class DummyStream extends ServletInputStream {

        @Override
        public int read() throws IOException {
            return -1;
        }
    }

    private static final ServletInputStream DUMMY_STREAM = new DummyStream();

    @Override
    public ServletInputStream getInputStream() throws IOException {
        return DUMMY_STREAM;
    }

    @Override
    public String getParameter(String s) {
        return null;
    }

    @Override
    public Enumeration getParameterNames() {
        return null;
    }

    @Override
    public String[] getParameterValues(String s) {
        return new String[0];
    }

    @Override
    public Map getParameterMap() {
        return null;
    }

    @Override
    public String getProtocol() {
        return null;
    }

    @Override
    public String getScheme() {
        return null;
    }

    @Override
    public String getServerName() {
        return null;
    }

    @Override
    public int getServerPort() {
        return 0;
    }

    @Override
    public BufferedReader getReader() throws IOException {
        return null;
    }

    @Override
    public String getRemoteAddr() {
        return null;
    }

    @Override
    public String getRemoteHost() {
        return null;
    }

    @Override
    public void setAttribute(String s, Object o) {
    }

    @Override
    public void removeAttribute(String s) {
    }

    @Override
    public Locale getLocale() {
        return null;
    }

    @Override
    public Enumeration getLocales() {
        return null;
    }

    @Override
    public boolean isSecure() {
        return false;
    }

    @Override
    public RequestDispatcher getRequestDispatcher(String s) {
        return null;
    }

    @Override
    public String getRealPath(String s) {
        return null;
    }

    @Override
    public int getRemotePort() {
        return 0;
    }

    @Override
    public String getLocalName() {
        return null;
    }

    @Override
    public String getLocalAddr() {
        return null;
    }

    @Override
    public int getLocalPort() {
        return 0;
    }
}
