001 /** 002 * Copyright (c) 2010 Yahoo! Inc. All rights reserved. 003 * Licensed under the Apache License, Version 2.0 (the "License"); 004 * you may not use this file except in compliance with the License. 005 * You may obtain a copy of the License at 006 * 007 * http://www.apache.org/licenses/LICENSE-2.0 008 * 009 * Unless required by applicable law or agreed to in writing, software 010 * distributed under the License is distributed on an "AS IS" BASIS, 011 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 012 * See the License for the specific language governing permissions and 013 * limitations under the License. See accompanying LICENSE file. 014 */ 015 package org.apache.oozie.servlet; 016 017 import javax.servlet.http.HttpServletResponse; 018 019 import org.apache.oozie.ErrorCode; 020 021 public class ServletUtilities { 022 023 /** 024 * accessory static method to check the app path parameter for the request 025 * used only for job-related request and only one of them should exist 026 * 027 * @param wfPath workflow app path 028 * @param coordPath coordinator app path 029 * @throws XServletException 030 */ 031 protected static void ValidateAppPath(String wfPath, String coordPath) throws XServletException { 032 if (wfPath != null && coordPath != null) { 033 throw new XServletException(HttpServletResponse.SC_BAD_REQUEST, ErrorCode.E0301, wfPath, coordPath); 034 } 035 else { 036 if (wfPath == null && coordPath == null) { 037 throw new XServletException(HttpServletResponse.SC_BAD_REQUEST, ErrorCode.E0302); 038 } 039 } 040 } 041 042 /** 043 * accessory static method to check the app path parameter for the request 044 * used only for job-related request and only one of them should exist 045 * bundle appPath is also checked 046 * 047 * @param wfPath workflow app path 048 * @param coordPath coordinator app path 049 * @param bundlePath bundle app path 050 * @throws XServletException 051 */ 052 protected static void ValidateAppPath(String wfPath, String coordPath, String bundlePath) throws XServletException { 053 int n = 0; 054 055 if (wfPath != null) { 056 n ++; 057 } 058 059 if (coordPath != null) { 060 n ++; 061 } 062 063 if (bundlePath != null) { 064 n ++; 065 } 066 067 if (n != 1) { 068 throw new XServletException(HttpServletResponse.SC_BAD_REQUEST, ErrorCode.E0302); 069 } 070 } 071 072 /** 073 * accessory static method to check the lib path parameter for the request 074 * 075 * @param libPath lib path 076 * @throws XServletException 077 */ 078 protected static void ValidateLibPath(String libPath) throws XServletException { 079 if (libPath == null) { 080 throw new XServletException(HttpServletResponse.SC_BAD_REQUEST, ErrorCode.E0302); 081 } 082 } 083 }