| /* |
| * 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.reef.webserver; |
| |
| import javax.servlet.http.HttpServletRequest; |
| import java.io.IOException; |
| import java.net.URLDecoder; |
| import java.util.*; |
| |
| /** |
| * Parsed HttpServletRequest. |
| */ |
| public final class ParsedHttpRequest { |
| private final String pathInfo; |
| private final String method; |
| private final String queryString; |
| private final String requestUri; |
| private final String requestUrl; |
| private final byte[] inputStream; |
| private final String targetSpecification; |
| private final String version; |
| private final String targetEntity; |
| |
| private final Map<String, String> headers = new HashMap(); |
| private final Map<String, List<String>> queryPairs = new LinkedHashMap<>(); |
| |
| /** |
| * parse HttpServletRequest. |
| * |
| * @param request |
| * @throws IOException |
| */ |
| public ParsedHttpRequest(final HttpServletRequest request) throws IOException { |
| this.pathInfo = request.getPathInfo() != null ? request.getPathInfo() : ""; |
| this.method = request.getMethod() != null ? request.getMethod() : ""; |
| this.queryString = request.getQueryString() != null ? request.getQueryString() : ""; |
| this.requestUri = request.getRequestURI() != null ? request.getRequestURI() : ""; |
| this.requestUrl = request.getRequestURL().toString(); |
| |
| for (final Enumeration en = request.getHeaderNames(); en.hasMoreElements();) { |
| final String headerName = en.nextElement().toString(); |
| this.headers.put(headerName, request.getHeader(headerName)); |
| } |
| |
| final int len = request.getContentLength(); |
| if (len > 0) { |
| this.inputStream = new byte[len]; |
| request.getInputStream().read(this.inputStream); |
| } else { |
| this.inputStream = new byte[0]; |
| } |
| |
| final String[] parts = this.requestUri.split("/"); |
| this.targetSpecification = parts.length > 1 ? parts[1] : null; |
| this.version = parts.length > 2 ? parts[2] : null; |
| this.targetEntity = parts.length > 3 ? parts[3] : null; |
| |
| if (!this.queryString.isEmpty()) { |
| final String[] pairs = this.queryString.split("&"); |
| for (final String pair : pairs) { |
| final int idx = pair.indexOf("="); |
| if (idx != -1) { |
| final String rKey = pair.substring(0, idx); |
| final String rValue = pair.substring(idx + 1); |
| final String key = URLDecoder.decode(rKey, "UTF-8"); |
| final String value = URLDecoder.decode(rValue, "UTF-8"); |
| List<String> valuesList = this.queryPairs.get(key.toLowerCase()); |
| if (valuesList == null) { |
| valuesList = new ArrayList<>(1); |
| this.queryPairs.put(key, valuesList); |
| } |
| valuesList.add(value); |
| } |
| } |
| } |
| } |
| |
| /** |
| * get http header as a list of HeaderEntry. |
| * @return |
| */ |
| public List<HeaderEntry> getHeaderEntryList() { |
| final List<HeaderEntry> list = new ArrayList<>(); |
| final Iterator it = this.headers.entrySet().iterator(); |
| while (it.hasNext()) { |
| final Map.Entry pair = (Map.Entry)it.next(); |
| System.out.println(pair.getKey() + " = " + pair.getValue()); |
| final HeaderEntry e = HeaderEntry.newBuilder() |
| .setKey((String) pair.getKey()) |
| .setValue((String) pair.getValue()) |
| .build(); |
| list.add(e); |
| it.remove(); // avoids a ConcurrentModificationException |
| } |
| return list; |
| } |
| |
| /** |
| * get target to match specification like "Reef". |
| * |
| * @return specification |
| */ |
| public String getTargetSpecification() { |
| return this.targetSpecification; |
| } |
| |
| /** |
| * get query string like "id=12345" . If no query string is provided in request, return empty string. |
| * |
| * @return |
| */ |
| public String getQueryString() { |
| return this.queryString; |
| } |
| |
| /** |
| * get target target entity like "Evaluators". |
| * |
| * @return |
| */ |
| public String getTargetEntity() { |
| return this.targetEntity; |
| } |
| |
| /** |
| * get http request method like "Get". |
| * |
| * @return |
| */ |
| public String getMethod() { |
| return this.method; |
| } |
| |
| /** |
| * get input Stream. |
| * |
| * @return |
| */ |
| public byte[] getInputStream() { |
| return this.inputStream; |
| } |
| |
| /** |
| * get request headers. |
| * |
| * @return |
| */ |
| public Map<String, String> getHeaders() { |
| return this.headers; |
| } |
| |
| /** |
| * get parsed queries. |
| * |
| * @return |
| */ |
| public Map<String, List<String>> getQueryMap() { |
| return this.queryPairs; |
| } |
| |
| /** |
| * get URL like //http://localhost:8080/Reef/Evaluators/. |
| * |
| * @return |
| */ |
| public String getRequestUrl() { |
| return this.requestUrl; |
| } |
| |
| /** |
| * get path infor, like /Reef/Evaluators/. |
| * |
| * @return |
| */ |
| public String getPathInfo() { |
| return pathInfo; |
| } |
| |
| /** |
| * get URI, like /Reef/Evaluators/. |
| * |
| * @return |
| */ |
| public String getRequestUri() { |
| return this.requestUri; |
| } |
| |
| /** |
| * get version of the request for Rest API. |
| * |
| * @return |
| */ |
| public String getVersion() { |
| return version; |
| } |
| } |