1 | import grails.util.GrailsUtil |
---|
2 | import au.com.bytecode.opencsv.CSVWriter |
---|
3 | import au.com.bytecode.opencsv.CSVReader |
---|
4 | import org.apache.commons.lang.WordUtils |
---|
5 | |
---|
6 | /** |
---|
7 | * Provides some csv import/export methods. |
---|
8 | * Requires the opencsv jar to be available which is included in the grails-export plugin. |
---|
9 | */ |
---|
10 | class PersonCsvService { |
---|
11 | |
---|
12 | boolean transactional = false |
---|
13 | |
---|
14 | def authService |
---|
15 | |
---|
16 | def g = new org.codehaus.groovy.grails.plugins.web.taglib.ApplicationTagLib() |
---|
17 | |
---|
18 | def sessionFactory |
---|
19 | def propertyInstanceMap = org.codehaus.groovy.grails.plugins.DomainClassGrailsPlugin.PROPERTY_INSTANCE_MAP |
---|
20 | |
---|
21 | /** |
---|
22 | * Import persons creating items as required. |
---|
23 | */ |
---|
24 | def importPersons(request) { |
---|
25 | Person.withTransaction { status -> |
---|
26 | def result = [:] |
---|
27 | |
---|
28 | def kByteMultiplier = 1000 |
---|
29 | def fileMaxSize = 800 * kByteMultiplier |
---|
30 | def logFileLink = g.link(controller: "appCore", action: "appLog") {"log"} |
---|
31 | |
---|
32 | def multiPartFile = request.getFile('file') |
---|
33 | |
---|
34 | InputStreamReader sr = new InputStreamReader(multiPartFile.inputStream) |
---|
35 | CSVReader reader = new CSVReader(sr) |
---|
36 | |
---|
37 | def fail = { Map m -> |
---|
38 | status.setRollbackOnly() |
---|
39 | reader.close() |
---|
40 | result.error = [ code: m.code, args: m.args ] |
---|
41 | return result |
---|
42 | } |
---|
43 | |
---|
44 | if(!multiPartFile || multiPartFile.isEmpty()) |
---|
45 | return fail(code: "default.file.not.supplied") |
---|
46 | |
---|
47 | if (multiPartFile.getSize() > fileMaxSize) |
---|
48 | return fail(code: "default.file.over.max.size", args: [fileMaxSize/kByteMultiplier, "kB"]) |
---|
49 | |
---|
50 | def line = [] |
---|
51 | def lineNumber = 0 |
---|
52 | def maxNumberOfColumns = 13 |
---|
53 | def personParams = [:] |
---|
54 | def personProperties = ["loginName", "firstName", "lastName", |
---|
55 | "ROLE_Manager", "ROLE_AppUser", |
---|
56 | "ROLE_TaskManager", "ROLE_TaskUser", |
---|
57 | "ROLE_InventoryManager", "ROLE_InventoryUser", |
---|
58 | "ROLE_AssetManager", "ROLE_AssetUser", |
---|
59 | "ROLE_ProductionManager", "ROLE_ProductionUser"] |
---|
60 | |
---|
61 | def personInstance |
---|
62 | def loginNamesAndPasswords = [:] |
---|
63 | |
---|
64 | def nextLine = { |
---|
65 | line = reader.readNext() |
---|
66 | lineNumber ++ |
---|
67 | log.info "Processing line: " + lineNumber |
---|
68 | } |
---|
69 | |
---|
70 | // Get first line. |
---|
71 | nextLine() |
---|
72 | |
---|
73 | // Check for header line 1. |
---|
74 | if(line != templateHeaderLine1) { |
---|
75 | log.error "Failed to find header line 1. " |
---|
76 | log.error "Required: " + templateHeaderLine1.toString() |
---|
77 | log.error "Supplied: " + line.toString() |
---|
78 | return fail(code: "default.file.no.header") |
---|
79 | } |
---|
80 | |
---|
81 | log.info "Header line found." |
---|
82 | |
---|
83 | // Prepare the first body line. |
---|
84 | nextLine() |
---|
85 | |
---|
86 | // Primary loop. |
---|
87 | while(line) { |
---|
88 | |
---|
89 | if(line.size() > maxNumberOfColumns) { |
---|
90 | log.error "Too many columns on line: " + lineNumber |
---|
91 | return fail(code: "person.import.failure", args: [lineNumber, logFileLink]) |
---|
92 | } |
---|
93 | |
---|
94 | // Ignore comment lines. |
---|
95 | if(line.toString().toLowerCase().contains("comment")) { |
---|
96 | log.info "Comment line found." |
---|
97 | nextLine() |
---|
98 | continue |
---|
99 | } |
---|
100 | |
---|
101 | // Ignore example lines. |
---|
102 | if(line.toString().toLowerCase().contains("example")) { |
---|
103 | log.info "Example line found." |
---|
104 | nextLine() |
---|
105 | continue |
---|
106 | } |
---|
107 | |
---|
108 | // Parse the line into the params map. |
---|
109 | personParams = [:] |
---|
110 | line.eachWithIndex { it, j -> |
---|
111 | personParams."${personProperties[j]}" = it.trim() |
---|
112 | } |
---|
113 | |
---|
114 | // Debug |
---|
115 | log.debug " Supplied params: " |
---|
116 | log.debug personParams |
---|
117 | |
---|
118 | // Ignore blank lines. |
---|
119 | if(personParams.loginName == '') { |
---|
120 | log.info "No login name found." |
---|
121 | nextLine() |
---|
122 | continue |
---|
123 | } |
---|
124 | |
---|
125 | // Login Name. |
---|
126 | personParams.loginName = personParams.loginName.toLowerCase() |
---|
127 | |
---|
128 | // First Name. |
---|
129 | personParams.firstName = WordUtils.capitalizeFully(personParams.firstName) |
---|
130 | |
---|
131 | // First Name. |
---|
132 | personParams.lastName = WordUtils.capitalizeFully(personParams.lastName) |
---|
133 | |
---|
134 | // Password. |
---|
135 | personParams.pass = personParams.pass ?: authService.randomPassword |
---|
136 | |
---|
137 | // Debug |
---|
138 | log.debug "personParams: " |
---|
139 | log.debug personParams |
---|
140 | |
---|
141 | personInstance = Person.findByLoginName(personParams.loginName) |
---|
142 | |
---|
143 | if(!personInstance) { |
---|
144 | log.info "Creating person with login name: " + personParams.loginName |
---|
145 | personInstance = new Person(loginName: personParams.loginName, |
---|
146 | firstName: personParams.firstName, |
---|
147 | lastName: personParams.lastName, |
---|
148 | pass: personParams.pass, |
---|
149 | password: authService.encodePassword(personParams.pass)) |
---|
150 | |
---|
151 | // Save. |
---|
152 | if(personInstance.hasErrors() || !personInstance.save()) { |
---|
153 | log.error "Failed to create person on line: " + lineNumber |
---|
154 | log.debug personInstance.errors |
---|
155 | return fail(code: "person.import.failure", args: [lineNumber, logFileLink]) |
---|
156 | } |
---|
157 | |
---|
158 | // Fill map with persons and passwords. |
---|
159 | loginNamesAndPasswords."${personParams.loginName}" = personParams.pass |
---|
160 | } |
---|
161 | else |
---|
162 | log.info "Person already exists with login name: " + personParams.loginName |
---|
163 | |
---|
164 | // Add Authorities. |
---|
165 | if('true'.equalsIgnoreCase(personParams.ROLE_Manager)) |
---|
166 | personInstance.addToAuthorities(Authority.get(2)) |
---|
167 | if('true'.equalsIgnoreCase(personParams.ROLE_AppUser)) |
---|
168 | personInstance.addToAuthorities(Authority.get(3)) |
---|
169 | if('true'.equalsIgnoreCase(personParams.ROLE_TaskManager)) |
---|
170 | personInstance.addToAuthorities(Authority.get(4)) |
---|
171 | if('true'.equalsIgnoreCase(personParams.ROLE_TaskUser)) |
---|
172 | personInstance.addToAuthorities(Authority.get(5)) |
---|
173 | if('true'.equalsIgnoreCase(personParams.ROLE_InventoryManager)) |
---|
174 | personInstance.addToAuthorities(Authority.get(6)) |
---|
175 | if('true'.equalsIgnoreCase(personParams.ROLE_InventoryUser)) |
---|
176 | personInstance.addToAuthorities(Authority.get(7)) |
---|
177 | if('true'.equalsIgnoreCase(personParams.ROLE_AssetManager)) |
---|
178 | personInstance.addToAuthorities(Authority.get(8)) |
---|
179 | if('true'.equalsIgnoreCase(personParams.ROLE_AssetUser)) |
---|
180 | personInstance.addToAuthorities(Authority.get(9)) |
---|
181 | if('true'.equalsIgnoreCase(personParams.ROLE_ProductionManager)) |
---|
182 | personInstance.addToAuthorities(Authority.get(10)) |
---|
183 | if('true'.equalsIgnoreCase(personParams.ROLE_ProductionUser)) |
---|
184 | personInstance.addToAuthorities(Authority.get(11)) |
---|
185 | |
---|
186 | if(lineNumber % 100 == 0) |
---|
187 | cleanUpGorm() |
---|
188 | |
---|
189 | if(!result.error) nextLine() |
---|
190 | } //while(line) |
---|
191 | |
---|
192 | // Success. |
---|
193 | log.info "End of file." |
---|
194 | result.loginNamesAndPasswords = g.message(code: "person.import.success") + '\n' |
---|
195 | result.loginNamesAndPasswords += "Login names and passwords: " + '\n' |
---|
196 | result.loginNamesAndPasswords += '\n' |
---|
197 | loginNamesAndPasswords.each() { result.loginNamesAndPasswords += (it.key + ' : ' + it.value + '\n') } |
---|
198 | reader.close() |
---|
199 | return result |
---|
200 | |
---|
201 | } //end withTransaction |
---|
202 | } // end importPersons() |
---|
203 | |
---|
204 | /** |
---|
205 | * Build a persons template csv file. |
---|
206 | * This template can then be populated for import. |
---|
207 | * @returns The template as a String in csv format. |
---|
208 | */ |
---|
209 | def buildPersonsTemplate() { |
---|
210 | |
---|
211 | StringWriter sw = new StringWriter() |
---|
212 | CSVWriter writer = new CSVWriter(sw) |
---|
213 | |
---|
214 | writeTemplateLines(writer) |
---|
215 | |
---|
216 | writer.close() |
---|
217 | return sw.toString() |
---|
218 | } |
---|
219 | |
---|
220 | private writeTemplateLines(writer) { |
---|
221 | writer.writeNext(templateHeaderLine1 as String[]) |
---|
222 | writer.writeNext() |
---|
223 | writer.writeNext("Comment: The header line is required.") |
---|
224 | writer.writeNext("Comment: Required columns are marked with a (*) in the header line.") |
---|
225 | writer.writeNext("Comment: Lists of items in a column must be separated by a semicolon (;), not a comma.") |
---|
226 | writer.writeNext("Comment: Role columns must be 'true' or 'false'.") |
---|
227 | writer.writeNext("Comment: Identical and existing names will be considered as the same item.") |
---|
228 | writer.writeNext("Comment: Lines containing 'comment' will be ignored.") |
---|
229 | writer.writeNext("Comment: Lines containing 'example' will be ignored.") |
---|
230 | writer.writeNext("Comment: This file must be saved as a CSV file before import.") |
---|
231 | writer.writeNext() |
---|
232 | } |
---|
233 | |
---|
234 | private getTemplateHeaderLine1() { |
---|
235 | ["Login Name*", "First Name*", "Last Name*", |
---|
236 | "Role: Business Manager*", "Role: Application User*", |
---|
237 | "Role: Task Manager*", "Role: Task User*", |
---|
238 | "Role: Inventory Manager*", "Role: Inventory User*", |
---|
239 | "Role: Asset Manager*", "Role: Asset User*", |
---|
240 | "Role: Production Manager*", "Role: Production User*"] |
---|
241 | } |
---|
242 | |
---|
243 | /** |
---|
244 | * This cleans up the hibernate session and a grails map. |
---|
245 | * For more info see: http://naleid.com/blog/2009/10/01/batch-import-performance-with-grails-and-mysql/ |
---|
246 | * The hibernate session flush is normal for hibernate. |
---|
247 | * The map is apparently used by grails for domain object validation errors. |
---|
248 | * A starting point for clean up is every 100 objects. |
---|
249 | */ |
---|
250 | def cleanUpGorm() { |
---|
251 | def session = sessionFactory.currentSession |
---|
252 | session.flush() |
---|
253 | session.clear() |
---|
254 | propertyInstanceMap.get().clear() |
---|
255 | } |
---|
256 | |
---|
257 | } // end class |
---|