001 /** 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, software 013 * distributed under the License is distributed on an "AS IS" BASIS, 014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 015 * See the License for the specific language governing permissions and 016 * limitations under the License. 017 */ 018 package org.apache.oozie.servlet; 019 020 import javax.servlet.http.HttpServletResponse; 021 022 import org.apache.oozie.ErrorCode; 023 024 public class ServletUtilities { 025 026 /** 027 * accessory static method to check the app path parameter for the request 028 * used only for job-related request and only one of them should exist 029 * 030 * @param wfPath workflow app path 031 * @param coordPath coordinator app path 032 * @throws XServletException 033 */ 034 protected static void ValidateAppPath(String wfPath, String coordPath) throws XServletException { 035 if (wfPath != null && coordPath != null) { 036 throw new XServletException(HttpServletResponse.SC_BAD_REQUEST, ErrorCode.E0301, wfPath, coordPath); 037 } 038 else { 039 if (wfPath == null && coordPath == null) { 040 throw new XServletException(HttpServletResponse.SC_BAD_REQUEST, ErrorCode.E0302); 041 } 042 } 043 } 044 045 /** 046 * accessory static method to check the app path parameter for the request 047 * used only for job-related request and only one of them should exist 048 * bundle appPath is also checked 049 * 050 * @param wfPath workflow app path 051 * @param coordPath coordinator app path 052 * @param bundlePath bundle app path 053 * @throws XServletException 054 */ 055 protected static void ValidateAppPath(String wfPath, String coordPath, String bundlePath) throws XServletException { 056 int n = 0; 057 058 if (wfPath != null) { 059 n ++; 060 } 061 062 if (coordPath != null) { 063 n ++; 064 } 065 066 if (bundlePath != null) { 067 n ++; 068 } 069 070 if (n == 0) { 071 throw new XServletException(HttpServletResponse.SC_BAD_REQUEST, ErrorCode.E0302, "a workflow, coordinator, or bundle app path is required"); 072 } 073 074 if (n != 1) { 075 throw new XServletException(HttpServletResponse.SC_BAD_REQUEST, ErrorCode.E0302, "Multiple app paths specified, only one is allowed"); 076 } 077 } 078 079 /** 080 * accessory static method to check the lib path parameter for the request 081 * 082 * @param libPath lib path 083 * @throws XServletException 084 */ 085 protected static void ValidateLibPath(String libPath) throws XServletException { 086 if (libPath == null) { 087 throw new XServletException(HttpServletResponse.SC_BAD_REQUEST, ErrorCode.E0302); 088 } 089 } 090 }