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Revision 9475

Added by Jing Tao over 8 years ago

Add the code to handle the read-only mode.

View differences:

src/edu/ucsb/nceas/metacat/MetaCatServlet.java
715 715 
			String ctype = request.getContentType();
716 716
717 717 
			if (ctype != null && ctype.startsWith("multipart/form-data")) {
718 
			    if(isReadOnly(response)) {
719 
			        return;
720 
			    }
718 721 
				handler.handleMultipartForm(request, response);
719 722 
				return;
720 723 
			}
......
909 912 
				handler.handleReadInlineDataAction(params, request, response, userName, password,
910 913 
						groupNames);
911 914 
			} else if (action.equals("insert") || action.equals("update")) {
915 
			    if(isReadOnly(response)) {
916 
                    return;
917 
                }
912 918 
				PrintWriter out = response.getWriter();
913 919 
				if ((userName != null) && !userName.equals("public")) {
914 920 
					handler.handleInsertOrUpdateAction(request.getRemoteAddr(), request.getHeader("User-Agent"), response, out, params, userName,
......
923 929 
				}
924 930 
				out.close();
925 931 
			} else if (action.equals("delete")) {
932 
			    if(isReadOnly(response)) {
933 
                    return;
934 
                }
926 935 
				PrintWriter out = response.getWriter();
927 936 
				if ((userName != null) && !userName.equals("public")) {
928 937 
					handler.handleDeleteAction(out, params, request, response, userName,
......
941 950 
				handler.handleValidateAction(out, params);
942 951 
				out.close();
943 952 
			} else if (action.equals("setaccess")) {
953 
			    if(isReadOnly(response)) {
954 
                    return;
955 
                }
944 956 
				PrintWriter out = response.getWriter();
945 957 
				handler.handleSetAccessAction(out, params, userName, request, response);
946 958 
				out.close();
......
1011 1023 
				out.println("\n</user>\n");
1012 1024 
				out.close();
1013 1025 
			} else if (action.equals("buildindex")) {
1026 
			    if(isReadOnly(response)) {
1027 
                    return;
1028 
                }
1014 1029 
				handler.handleBuildIndexAction(params, request, response, userName, groupNames);
1015 1030 
			} else if (action.equals("reindex")) {
1031 
			    if(isReadOnly(response)) {
1032 
                    return;
1033 
                }
1016 1034 
				handler.handleReindexAction(params, request, response, userName, groupNames);
1017 1035 
			} else if (action.equals("reindexall")) {
1036 
			    if(isReadOnly(response)) {
1037 
                    return;
1038 
                }
1018 1039 
                handler.handleReindexAllAction(params, request, response, userName, groupNames);
1019 1040 
            } else if (action.equals("login") || action.equals("logout")) {
1020 1041 
				/*
......
1053 1074 
				ServiceService.refreshService("XMLSchemaService");
1054 1075 
				return;
1055 1076 
			} else if (action.equals("scheduleWorkflow")) {
1077 
			    if(isReadOnly(response)) {
1078 
                    return;
1079 
                }
1056 1080 
				try {
1057 1081 
					WorkflowSchedulerClient.getInstance().scheduleJob(request, response,
1058 1082 
							params, userName, groupNames);
......
1063 1087 
					return;
1064 1088 
				}
1065 1089 
			} else if (action.equals("unscheduleWorkflow")) {
1090 
			    if(isReadOnly(response)) {
1091 
                    return;
1092 
                }
1066 1093 
				try {
1067 1094 
					WorkflowSchedulerClient.getInstance().unScheduleJob(request,
1068 1095 
							response, params, userName, groupNames);
......
1073 1100 
					return;
1074 1101 
				}
1075 1102 
			} else if (action.equals("rescheduleWorkflow")) {
1103 
			    if(isReadOnly(response)) {
1104 
                    return;
1105 
                }
1076 1106 
				try {
1077 1107 
					WorkflowSchedulerClient.getInstance().reScheduleJob(request,
1078 1108 
							response, params, userName, groupNames);
......
1093 1123 
					return;
1094 1124 
				}
1095 1125 
			} else if (action.equals("deleteScheduledWorkflow")) {
1126 
			    if(isReadOnly(response)) {
1127 
                    return;
1128 
                }
1096 1129 
				try {
1097 1130 
					WorkflowSchedulerClient.getInstance().deleteJob(request, response,
1098 1131 
							params, userName, groupNames);
......
1130 1163 
				//try the plugin handler if it has an entry for handling this action
1131 1164 
				MetacatHandlerPlugin handlerPlugin = MetacatHandlerPluginManager.getInstance().getHandler(action);
1132 1165 
				if (handlerPlugin != null) {
1166 
				    if(isReadOnly(response)) {
1167 
	                    return;
1168 
	                }
1133 1169 
					handlerPlugin.handleAction(action, params, request, response, userName, groupNames, sessionId);
1134 1170 
				}
1135 1171 
				else {
......
1181 1217 
    public static boolean isFullyInitialized() {
1182 1218 
    	return _fullyInitialized;
1183 1219 
    }
1220
1221 
    private boolean isReadOnly(HttpServletResponse response) throws IOException {
1222 
        boolean readOnly = false;
1223 
        ReadOnlyChecker checker = new ReadOnlyChecker();
1224 
        readOnly = checker.isReadOnly();
1225 
        if(readOnly) {
1226 
            PrintWriter out = response.getWriter();
1227 
            response.setContentType("text/xml");
1228 
            out.println("<?xml version=\"1.0\"?>");
1229 
            out.println("<error>");
1230 
            out.println("The Metacat is on the read-only mode and your request can't be fulfiled. Please try again later.");
1231 
            out.println("</error>");
1232 
            out.close();
1233 
        }
1234 
        return readOnly;
1235 
    }
1184 1236 
}

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