summaryrefslogtreecommitdiffstats
path: root/policy-management/src/main/server-gen/bin/features
blob: e21562f78068c9622e3ed782efd0e3c217c1a4e2 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
#! /bin/bash

###
# ============LICENSE_START=======================================================
# ONAP POLICY
# ================================================================================
# Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
# ================================================================================
# Licensed 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.
# ============LICENSE_END=========================================================
##

# #############################################################
# Features Directory Layout:
#
# POLICY_HOME/
#   └── features/
#        └── <feature-name>*/
#            └── [config]/
#            │   └── <config-file>*
#            └── lib/
#            │   └── [dependencies]/
#            │   │   └── <dependent-jar>*
#            │   └── feature/
#            │       └── <feature-jar>
#            └── [install]
#                └── [enable]
#                └── [disable]
#                └── [other-future-operations]
#                └── [other-files]
#
#   <feature-name> directory should not have the "feature-" prefix.
#   <config-file> preferable with "feature-" prefix.
#
# Example:
#
# POLICY_HOME/
#   └── features/
#        ├── eelf/
#        │   ├── config/
#        │   │   ├── logback-eelf.xml
#        │   └── lib/
#        │   │   └── dependencies/
#        │   │   │   └── ONAP-Logging-1.1.0-SNAPSHOT.jar
#        │   │   │   └── eelf-core-1.0.0.jar
#        │   │   └── feature/
#        │   │       └── feature-eelf-1.1.0-SNAPSHOT.jar
#        │   └── install/
#        │       └── enable
#        │       └── disable
#        └── healthcheck/
#            ├── config/
#            │   └── feature-healthcheck.properties
#            └── lib/
#                └── feature/
#                    └── feature-healthcheck-1.1.0-SNAPSHOT.jar
# #############################################################

if [[ ${DEBUG} == y ]]; then
	echo "-- MAIN --"
	set -x
fi
	
# The directories at play

LIB=${POLICY_HOME}/lib
CONFIG=${POLICY_HOME}/config
FEATURES=${POLICY_HOME}/features

if [[ ! ( -d "${LIB}" && -x "${LIB}" ) ]]; then
	echo "ERROR: no ${LIB} directory"
	exit 1
fi

if [[ ! ( -d "${CONFIG}" && -x "${CONFIG}" ) ]]; then
	echo "ERROR: no ${CONFIG} directory"
	exit 2
fi

if [[ ! ( -d "${FEATURES}" && -x "${FEATURES}" ) ]]; then
	echo "ERROR: no ${FEATURES} directory"
	exit 3
fi

# relative per Feature Directory Paths

FEATURE_DEPS="lib/dependencies"
FEATURE_LIB="lib/feature"
FEATURE_CONFIG="config"
FEATURE_INSTALL="install"

featureJars=$(find "${FEATURES}" -name "feature-*.jar" -type f -exec basename {} \; 2> /dev/null)
if [[ -z ${featureJars} ]]; then
	echo "no features"
	usage
	exit 0
fi

# default field lengths
nameLength=20
versionLength=15

# update field lengths, if needed
for jar in ${featureJars} ; do
	# get file name without 'jar' suffix
	tmp="${jar%\.jar}"

	# remove feature prefix
	tmp="${tmp#feature-}"
		
	# get feature name by removing the version portion
	name="${tmp%%-[0-9]*}"

	# extract version portion of name
	version="${tmp#${name}-}"

	# grow the size of the name/version field, if needed
	if (( "${#name}" > nameLength )) ; then
		nameLength="${#name}"
	fi
	if (( "${#version}" > versionLength )) ; then
		versionLength="${#version}"
	fi
done

# ##########################################################
# usage: usage information
# ##########################################################
function usage
{
		# print out usage information
		cat >&2 <<-'EOF'
		Usage:  features status
		            Get enabled/disabled status on all features
		        features enable <feature> ...
		            Enable the specified feature
		        features disable <feature> ...
		            Disable the specified feature
		EOF
}

# ##########################################################
# status: dump out status information
# ##########################################################
function status
{
	if [[ ${DEBUG} == y ]]; then
		echo "-- ${FUNCNAME[0]} $@ --"
		set -x
	fi
	
	local tmp name version status
	local format="%-${nameLength}s %-${versionLength}s %s\n"
	
	printf "${format}" "name" "version" "status"
	printf "${format}" "----" "-------" "------"
	
	for jar in ${featureJars} ; do
		# get file name without 'jar' suffix
		tmp="${jar%\.jar}"
		
		# remove feature prefix
		tmp="${tmp#feature-}"

		# get feature name by removing the version portion
		name="${tmp%%-[0-9]*}"

		# extract version portion of name
		version="${tmp#${name}-}"

		# determine status
		status=disabled
		if [[ -e "${LIB}/${jar}" ]] ; then
			status=enabled
		fi
		printf "${format}" "${name}" "${version}" "${status}"
	done
}

# ##########################################################
# depEnableAnalysis(featureName):  
#                   reports on potential dependency conflicts
#   featureName: name of the feature
# ##########################################################
function depEnableAnalysis()
{
	if [[ ${DEBUG} == y ]]; then
		echo "-- ${FUNCNAME[0]} $@ --"
		set -x
	fi
	
	local featureName="$1"
	local featureDepJars featureDepJarPath depJarName multiVersionJars
	
	if [[ -z ${featureName} ]]; then
		echo "WARN: no feature name"
		return 1
	fi
	
	featureDepJars=$(ls "${FEATURES}"/"${featureName}"/"${FEATURE_DEPS}"/*.jar 2> /dev/null)
	for featureDepJarPath in ${featureDepJars}; do
		depJarName=$(basename "${featureDepJarPath}")
		
		# it could be a base jar

		if [[ -f "${LIB}"/"${depJarName}" ]]; then
			echo "WARN: dependency ${depJarName} already in use"
			continue
		fi
		
		# it could be a link from another feature

		if [[ -L "${LIB}"/"${depJarName}" ]]; then
			continue
		fi
		
		# unadvisable if multiple versions exist

		multiVersionJars=$(ls "${LIB}"/"${depJarName%%-[0-9]*.jar}"-*.jar 2> /dev/null)
		if [[ -n "${multiVersionJars}" ]]; then
			echo "WARN: other version of library ${depJarName} present: ${multiVersionJars}"
			return 2
		fi
	done
}

# ##########################################################
# configEnableAnalysis(featureName):  
#                   reports on potential dependency conflicts
#   featureName: name of the feature
# ##########################################################
function configEnableAnalysis()
{
	if [[ ${DEBUG} == y ]]; then
		echo "-- ${FUNCNAME[0]} $@ --"
		set -x
	fi
	
	local featureName="$1"
	local featureConfigs configPath configFileName
	
	if [[ -z ${featureName} ]]; then
		echo "WARN: no feature name"
		return 1
	fi
	
	featureConfigs=$(ls "${FEATURES}"/"${featureName}"/"${FEATURE_CONFIG}"/ 2> /dev/null)
	for configPath in ${featureConfigs}; do
		configFileName=$(basename "${configPath}")
		if [[ -e "${LIB}"/"${configFileName}" ]]; then
			echo "ERROR: a config file of the same name is already in the base: ${configFileName}"
			return 2
		fi
	done
}

# ##########################################################
# enableFeatureDeps(featureName):  
#                               enables feature dependencies
#   featureName: name of the feature
# ##########################################################
function enableFeatureDeps()
{
	if [[ ${DEBUG} == y ]]; then
		echo "-- ${FUNCNAME[0]} $@ --"
		set -x
	fi
	
	local featureName="$1"
	local featureDeps featureDepPath depJarName
	
	if [[ -z ${featureName} ]]; then
		echo "WARN: no feature name"
		return 1
	fi
	
	featureDeps=$(ls "${FEATURES}"/"${featureName}"/"${FEATURE_DEPS}"/*.jar 2> /dev/null)
	for featureDepPath in ${featureDeps}; do
		depJarName=$(basename "${featureDepPath}")
		if [[ ! -f "${LIB}"/"${depJarName}" ]]; then
			ln -s -f "${featureDepPath}" "${LIB}/"
		fi
	done
}

# ##########################################################
# enableFeatureConfig(featureName):  
#                               enables feature configuration
#   featureName: name of the feature
# ##########################################################
function enableFeatureConfig()
{
	if [[ ${DEBUG} == y ]]; then
		echo "-- ${FUNCNAME[0]} $@ --"
		set -x
	fi
	
	local featureName="$1"
	local featureConfigs featureConfigPath
	
	if [[ -z ${featureName} ]]; then
		echo "WARN: no feature name"
		return 1
	fi
	
	featureConfigs=$(find "${FEATURES}"/"${featureName}"/"${FEATURE_CONFIG}"/ -type f -maxdepth 1 2> /dev/null)
	for featureConfigPath in ${featureConfigs}; do
		ln -s -f "${featureConfigPath}" "${CONFIG}/"
	done 
}

# ##########################################################
# enableFeatureOp(featureName): 'enable' feature operation
#   featureName: name of the feature
# ##########################################################
function enableFeatureOp()
{
	if [[ ${DEBUG} == y ]]; then
		echo "-- ${FUNCNAME[0]} $@ --"
		set -x
	fi
	
	local featureName="$1"
	
	if [[ -z ${featureName} ]]; then
		echo "WARN: no feature name"
		return 1
	fi
	
	enableScript="${FEATURES}"/"${featureName}"/"${FEATURE_INSTALL}"/enable
	if [[ -f ${enableScript} ]]; then
		(
			cd "${FEATURES}"/"${featureName}"/"${FEATURE_INSTALL}"
			chmod u+x enable
			./enable
		)
	fi
}

# ##########################################################
# enableFeature(featureName, featureJar):  enables a feature
#   featureName: name of the feature
#   featureJar:  path to feature jar implementation
# ##########################################################
function enableFeature()
{
	if [[ $DEBUG == y ]]; then
		echo "-- ${FUNCNAME[0]} $@ --"
		set -x
	fi
	
	local featureName="$1"
	local featureJar="$2"
	
	if [[ -z ${featureName} ]]; then
		echo "WARN: no feature name"
		return 1
	fi
	
	if [[ -z ${featureJar} ]]; then
		echo "WARN: no feature jar"
		return 2
	fi
	
	if ! depEnableAnalysis "${featureName}"; then
		return 3
	fi
	
	if ! configEnableAnalysis "${featureName}"; then
		return 4
	fi
	
	# enable feature itself

	ln -s -f "${featureJar}" "${LIB}/"
		
	# enable dependent libraries if any
	
	enableFeatureDeps "${featureName}"
	
	# enable configuration

	enableFeatureConfig "${featureName}" 
	
	# TODO: run feature install DB scripts if any

	# run custom enable if any

	enableFeatureOp "${featureName}"
}

# ##########################################################
# disableFeatureDeps(featureName):  
#			disables feature dependencies
# ##########################################################
function disableFeatureDeps()
{
	if [[ ${DEBUG} == y ]]; then
		echo "-- ${FUNCNAME[0]} $@ --"
		set -x
	fi
	
	local featureName="$1"
	local xDepsEnabledMap featureBaseDirs aFeatureDir aFeatureName
	local featureDeps aFeatureDep 
	local depJarPath depJarName depJarRealPath
	
	if [[ -z ${featureName} ]]; then
		echo "WARN: no feature name"
		return 1
	fi
	
	declare -A xDepsEnabledMap
	
	featureBaseDirs=$(ls -d "${FEATURES}"/*/ 2> /dev/null)
	for aFeatureDir in ${featureBaseDirs}; do 
		aFeatureName=$(basename "${aFeatureDir}")
		if [[ "${aFeatureName}" == "${featureName}" ]]; then
			continue
		fi
		
		depJarPaths=$(ls "${aFeatureDir}"/"${FEATURE_DEPS}"/*.jar 2> /dev/null)
		for depJarPath in ${depJarPaths}; do
			if [[ "$?" == 0 ]] ; then
				depJarName=$(basename "${depJarPath}")
				xDepsEnabledMap[${depJarName}]="${depJarPath}"
			fi
		done
	done
	
	if [[ ${DEBUG} == y ]]; then
		echo "${!xDepsEnabledMap[@]}"
		echo "${xDepsEnabledMap[@]}"
	fi
	
	featureDeps=$(ls "${FEATURES}"/"${featureName}"/"${FEATURE_DEPS}"/*.jar 2> /dev/null)
	for aFeatureDep in ${featureDeps}; do
		depJarName=$(basename "${aFeatureDep}")
		if [[ -L "${LIB}"/"${depJarName}" ]]; then
			depJarRealPath=$(readlink -f "${LIB}"/"${depJarName}")
			if [[ "${depJarRealPath}" == "${aFeatureDep}" ]]; then
				rm -f "${LIB}"/"${depJarName}"
				
				# case there were multiple features using this library
				# re-enable link fron an enabled feature
		
				if [[ -n ${xDepsEnabledMap[${depJarName}]} ]]; then
					ln -s -f "${xDepsEnabledMap[${depJarName}]}" "${LIB}/"
				fi
			fi
		fi		
	done
}

# ##########################################################
# disableFeatureConfig(featureName):  
#                               disables feature configuration
#   featureName: name of the feature
# ##########################################################
function disableFeatureConfig()
{
	if [[ ${DEBUG} == y ]]; then
		echo "-- ${FUNCNAME[0]} $@ --"
		set -x
	fi
	
	local featureName="$1"
	local featureConfigs featureConfigPath
	
	if [[ -z ${featureName} ]]; then
		echo "WARN: no feature name"
		return 1
	fi
	
	featureConfigs=$(find "${FEATURES}"/"${featureName}"/"${FEATURE_CONFIG}"/ -type f -maxdepth 1 2> /dev/null)
	for featureConfigPath in ${featureConfigs}; do
		configFileName=$(basename "${featureConfigPath}")
		rm -f "${CONFIG}"/"${configFileName}" 2> /dev/null
	done 
}

# ##########################################################
# disableFeatureOp(featureName): 'enable' feature operation
#   featureName: name of the feature
# ##########################################################
function disableFeatureOp()
{
	if [[ ${DEBUG} == y ]]; then
		echo "-- ${FUNCNAME[0]} $@ --"
		set -x
	fi
	
	local featureName="$1"
	
	if [[ -z ${featureName} ]]; then
		echo "WARN: no feature name"
		return 1
	fi
	
	disableScript="${FEATURES}"/"${featureName}"/"${FEATURE_INSTALL}"/disable
	if [[ -f ${disableScript} ]]; then
		(
			cd "${FEATURES}"/"${featureName}"/"${FEATURE_INSTALL}"
			chmod u+x disable
			./disable
		)
	fi
}

# ##########################################################
# disableFeature(featureName, featureJar):  enables a feature
#   featureName: name of the feature
# ##########################################################
function disableFeature()
{
	if [[ ${DEBUG} == y ]]; then
		echo "-- ${FUNCNAME[0]} $@ --"
		set -x
	fi
	
	local featureName="$1"
	
	if [[ -z ${featureName} ]]; then
		echo "WARN: no feature name"
		return
	fi
	
	# disable feature itself

	(
	cd "${LIB}"
	rm -f feature-"${featureName}"-[0-9]*.jar 2> /dev/null
	)
		
	# disable dependencies if any

	disableFeatureDeps "${featureName}"
	
	# disable configuration if any

	disableFeatureConfig "${featureName}"
	
	# run feature uninstall DB scripts if any
	# TODO: future

	# run custom disable if any
	disableFeatureOp "${featureName}"
}

case "$1" in
	status)
	{
		# dump out status information
		status
	};;

	enable)
	{
		if [[ -f "${POLICY_HOME}"/PID ]]; then
			echo "ERROR: enable: not allowed when policy is running .."
			echo
			status
			exit 10
		fi
		
		# enable the specified options
		shift
		match=
		for name in "$@" ; do
			# look for matches - 'file' has the full path name
			file=$(ls "${FEATURES}"/"${name}"/"${FEATURE_LIB}"/feature-"${name}"-[0-9]*.jar 2> /dev/null)
			if [[ "$?" != 0 ]] ; then
				# no matching file
				echo "${name}:  no such option"
			else
				# make sure there is only one feature jar
				countFeatureJars=$(echo "${file}" | wc -w)
				if [[ ${countFeatureJars} != 1 ]]; then
					echo "WARNING: skipping ${name},  ${countFeatureJars} feature libraries found"
					continue
				fi			
				
				# found a match (handle multiple matches, just in case)
				match=true
				
				enableFeature "${name}" "${file}"
			fi
		done
		if [[ "${match}" ]] ; then
			echo
			status
		fi
	};;

	disable)
	{
		if [[ -f "${POLICY_HOME}"/PID ]]; then
			echo "ERROR: disable: not allowed when policy is running .."
			echo
			status
			exit 11
		fi
		
		# disable the specified options
		shift
		match=
		for name in "$@" ; do
			# look for matches -- 'file' has the last segment of the path name
			file=$(ls "${FEATURES}"/"${name}"/"${FEATURE_LIB}"/feature-"${name}"-[0-9]*.jar 2> /dev/null)
			if [[ "$?" != 0 ]] ; then
				echo "${name}:  no such option"
			else
				# found a match (handle multiple matches, just in case)
				match=true
				
				disableFeature "${name}"
			fi
		done
		if [[ "${match}" ]] ; then
			echo
			status
		fi
	};;

	*)
	{
		usage
	};;
esac
exit