restconf-client/provider/src/test/java/org/onap/ccsdk/sli/plugins/yangserializers/dfserializer/DataFormatUtilsTest.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * ONAP - CCSDK
   4  * ================================================================================
   5  * Copyright (C) 2018 Huawei Technologies Co., Ltd. All rights reserved.
   6  * ================================================================================
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  * ============LICENSE_END=========================================================
  19  */
  20
  21 package org.onap.ccsdk.sli.plugins.yangserializers.dfserializer;
  22
  23 /**
  24  * Unit test case utilities for data format serializer and restconf api call
  25  * node.
  26  */
  27 public final class DataFormatUtilsTest {
  28
  29     static final String ENCODE_TO_JSON_ID_COMMON = "\n        \"interfaces\"" +
  30             ": " +
  31             "{\n" +
  32             "            \"int-list\": [\n" +
  33             "                {\n" +
  34             "                    \"iden\": \"optical\",\n" +
  35             "                    \"available\": {\n" +
  36             "                        \"ll\": [\n" +
  37             "                            \"Giga\",\n" +
  38             "                            \"identity-types:Loopback\",\n" +
  39             "                            \"identity-types-second:Ethernet" +
  40             "\"\n" +
  41             "                        ],\n" +
  42             "                        \"leaf1\": \"58\",\n" +
  43             "                        \"leaf2\": \"identity-types-second:iden" +
  44             "2\"\n" +
  45             "                    }\n" +
  46             "                },\n" +
  47             "                {\n" +
  48             "                    \"iden\": \"214748364\",\n" +
  49             "                    \"available\": {\n" +
  50             "                        \"ll\": [\n" +
  51             "                            \"Giga\",\n" +
  52             "                            \"identity-types:Loopback\",\n" +
  53             "                            \"identity-types-second:Ethernet" +
  54             "\"\n" +
  55             "                        ],\n" +
  56             "                        \"leaf1\": \"8888\",\n" +
  57             "                        \"leaf2\": \"identity-types-second:ide" +
  58             "n2\"\n" +
  59             "                    }\n" +
  60             "                }\n" +
  61             "            ]\n" +
  62             "        },\n" +
  63             "        \"interface\": \"identity-types:physical\"\n" +
  64             "    }";
  65
  66     static final String ENCODE_TO_JSON_ID = "{\n" +
  67             "    \"identity-test:con1\": {" + ENCODE_TO_JSON_ID_COMMON +
  68             ",\n" +
  69             "    \"identity-test:l\": \"abc\"\n" +
  70             "}";
  71
  72     static final String ENCODE_TO_JSON_ID_PUT = "{\n" +
  73             "    \"identity-test:test\": {\n" +
  74             "        \"con1\": {" + addSpace(ENCODE_TO_JSON_ID_COMMON, 4) +
  75             ",\n" +
  76             "        \"l\": \"abc\"\n" +
  77             "    }\n" +
  78             "}";
  79
  80     static final String ENCODE_TO_XML_ID_COMMON = "\n    <interfaces>\n" +
  81             "        <int-list>\n" +
  82             "            <iden>optical</iden>\n" +
  83             "            <available>\n" +
  84             "                <ll>Giga</ll>\n" +
  85             "                <ll xmlns:yangid=\"identity:list:ns:test:json:se" +
  86             "r\">yangid:Loopback</ll>\n" +
  87             "                <ll xmlns:yangid=\"identity:list:second:ns:test" +
  88             ":json:ser\">yangid:Ethernet</ll>\n" +
  89             "                <leaf1>58</leaf1>\n" +
  90             "                <leaf2 xmlns:yangid=\"identity:list:second:ns:t" +
  91             "est:json:ser\">yangid:iden2</leaf2>\n" +
  92             "            </available>\n" +
  93             "        </int-list>\n" +
  94             "        <int-list>\n" +
  95             "            <iden>214748364</iden>\n" +
  96             "            <available>\n" +
  97             "                <ll>Giga</ll>\n" +
  98             "                <ll xmlns:yangid=\"identity:list:ns:test:json:s" +
  99             "er\">yangid:Loopback</ll>\n" +
 100             "                <ll xmlns:yangid=\"identity:list:second:ns:test" +
 101             ":json:ser\">yangid:Ethernet</ll>\n" +
 102             "                <leaf1>8888</leaf1>\n" +
 103             "                <leaf2 xmlns:yangid=\"identity:list:second:ns:t" +
 104             "est:json:ser\">yangid:iden2</leaf2>\n" +
 105             "            </available>\n" +
 106             "        </int-list>\n" +
 107             "    </interfaces>\n" +
 108             "    <interface xmlns:yangid=\"identity:list:ns:test:json:ser\">" +
 109             "yangid:physical</interface>";
 110
 111     static final String ENCODE_TO_XML_ID = "<?xml version=\"1.0\" encoding=" +
 112             "\"UTF-8\" standalone=\"no\"?>\n" +
 113             "<con1 xmlns=\"identity:ns:test:json:ser\">" +
 114             ENCODE_TO_XML_ID_COMMON + "\n</con1>\n";
 115
 116     static final String ENCODE_TO_XML_ID_PUT = "<?xml version=\"1.0\" enco" +
 117             "ding=\"UTF-8\" standalone=\"no\"?>\n" +
 118             "<test xmlns=\"identity:ns:test:json:ser\">\n" +
 119             "    <con1>" + addSpace(ENCODE_TO_XML_ID_COMMON, 4)
 120             + "\n    </con1>\n" +
 121             "</test>\n";
 122
 123     static final String ENCODE_TO_JSON_YANG_COMMON = "\n    " +
 124             "\"test-augment:ll6\": [\n" +
 125             "        \"unbounded\",\n" +
 126             "        \"8\"\n" +
 127             "    ],\n" +
 128             "    \"test-augment:cont13\": {\n" +
 129             "        \"ll9\": [\n" +
 130             "            \"abc\",\n" +
 131             "            \"abc\"\n" +
 132             "        ],\n" +
 133             "        \"list9\": [\n" +
 134             "            {\n" +
 135             "                \"leaf27\": \"abc\"\n" +
 136             "            },\n" +
 137             "            {\n" +
 138             "                \"leaf27\": \"abc\"\n" +
 139             "            }\n" +
 140             "        ],\n" +
 141             "        \"leaf28\": \"abc\",\n" +
 142             "        \"cont12\": {\n" +
 143             "            \"leaf26\": \"abc\"\n" +
 144             "        }\n" +
 145             "    },\n" +
 146             "    \"test-augment:list7\": [\n" +
 147             "        {\n" +
 148             "            \"leaf14\": \"test\"\n" +
 149             "        },\n" +
 150             "        {\n" +
 151             "            \"leaf14\": \"create\"\n" +
 152             "        }\n" +
 153             "    ],\n" +
 154             "    \"test-augment:leaf15\": \"abc\",\n" +
 155             "    \"test-augment:cont5\": {\n" +
 156             "        \"leaf13\": \"true\"\n" +
 157             "    }";
 158
 159     static final String ENCODE_TO_JSON_YANG_AUG_POST = "{\n" +
 160             "    \"test-yang:leaf10\": \"abc\"," +
 161             ENCODE_TO_JSON_YANG_COMMON + "\n}";
 162
 163     static final String ENCODE_TO_JSON_YANG = "{\n" +
 164             "    \"test-yang:cont2\": {\n" +
 165             "        \"list1\": [\n" +
 166             "            {\n" +
 167             "                \"ll1\": [\n" +
 168             "                    \"abc\",\n" +
 169             "                    \"abc\"\n" +
 170             "                ],\n" +
 171             "                \"leaf1\": \"true\",\n" +
 172             "                \"ll2\": [\n" +
 173             "                    \"abc\",\n" +
 174             "                    \"abc\"\n" +
 175             "                ],\n" +
 176             "                \"list5\": [\n" +
 177             "                    {\n" +
 178             "                        \"leaf9\": \"abc\"\n" +
 179             "                    },\n" +
 180             "                    {\n" +
 181             "                        \"leaf9\": \"abc\"\n" +
 182             "                    }\n" +
 183             "                ],\n" +
 184             "                \"leaf3\": \"abc\",\n" +
 185             "                \"leaf2\": \"abc\",\n" +
 186             "                \"list4\": [\n" +
 187             "                    {\n" +
 188             "                        \"leaf8\": \"abc\"\n" +
 189             "                    },\n" +
 190             "                    {\n" +
 191             "                        \"leaf8\": \"abc\"\n" +
 192             "                    }\n" +
 193             "                ],\n" +
 194             "                \"cont4\": {\n" +
 195             "                    \"leaf11\": \"abc\"\n" +
 196             "                }\n" +
 197             "            },\n" +
 198             "            {\n" +
 199             "                \"ll1\": [\n" +
 200             "                    \"abc\",\n" +
 201             "                    \"abc\"\n" +
 202             "                ],\n" +
 203             "                \"leaf1\": \"true\",\n" +
 204             "                \"ll2\": [\n" +
 205             "                    \"abc\",\n" +
 206             "                    \"abc\"\n" +
 207             "                ],\n" +
 208             "                \"leaf3\": \"abc\",\n" +
 209             "                \"list5\": [\n" +
 210             "                    {\n" +
 211             "                        \"leaf9\": \"abc\"\n" +
 212             "                    },\n" +
 213             "                    {\n" +
 214             "                        \"leaf9\": \"abc\"\n" +
 215             "                    }\n" +
 216             "                ],\n" +
 217             "                \"list4\": [\n" +
 218             "                    {\n" +
 219             "                        \"leaf8\": \"abc\"\n" +
 220             "                    },\n" +
 221             "                    {\n" +
 222             "                        \"leaf8\": \"abc\"\n" +
 223             "                    }\n" +
 224             "                ],\n" +
 225             "                \"leaf2\": \"abc\",\n" +
 226             "                \"cont4\": {\n" +
 227             "                    \"leaf11\": \"abc\"\n" +
 228             "                }\n" +
 229             "            }\n" +
 230             "        ],\n" +
 231             "        \"ll3\": [\n" +
 232             "            \"abc\",\n" +
 233             "            \"abc\"\n" +
 234             "        ],\n" +
 235             "        \"ll5\": [\n" +
 236             "            \"abc\",\n" +
 237             "            \"abc\"\n" +
 238             "        ],\n" +
 239             "        \"cont4\": {\n" +
 240             "            \"leaf10\": \"abc\"," +
 241             addSpace(ENCODE_TO_JSON_YANG_COMMON, 8) + "\n" +
 242             "        },\n" +
 243             "        \"ll4\": [\n" +
 244             "            \"abc\",\n" +
 245             "            \"abc\"\n" +
 246             "        ],\n" +
 247             "        \"cont3\": {\n" +
 248             "            \"leaf10\": \"abc\"\n" +
 249             "        },\n" +
 250             "        \"leaf5\": \"abc\",\n" +
 251             "        \"list2\": [\n" +
 252             "            {\n" +
 253             "                \"leaf4\": \"abc\"\n" +
 254             "            },\n" +
 255             "            {\n" +
 256             "                \"leaf4\": \"abc\"\n" +
 257             "            }\n" +
 258             "        ],\n" +
 259             "        \"leaf12\": \"abc\",\n" +
 260             "        \"leaf6\": \"abc\",\n" +
 261             "        \"list6\": [\n" +
 262             "            {\n" +
 263             "                \"leaf11\": \"abc\"\n" +
 264             "            },\n" +
 265             "            {\n" +
 266             "                \"leaf11\": \"abc\"\n" +
 267             "            }\n" +
 268             "        ]\n" +
 269             "    }\n" +
 270             "}";
 271
 272     static final String ENCODE_TO_JSON_YANG_PUT = "{\n" +
 273             "    \"test-yang:cont4\": {" + addSpace(
 274             ENCODE_TO_JSON_YANG_COMMON, 4) + ",\n" +
 275             "        \"leaf10\": \"abc\"\n" +
 276             "    }\n" +
 277             "}";
 278
 279     static final String ENCODE_TO_XML_YANG_COMMON = "\n" +
 280             "<ll6 xmlns=\"urn:opendaylight:params:xml:ns:yang:aug" +
 281             "ment\">unbounded</ll6>\n" +
 282             "<ll6 xmlns=\"urn:opendaylight:params:xml:ns:yang:aug" +
 283             "ment\">8</ll6>\n" +
 284             "<cont13 xmlns=\"urn:opendaylight:params:xml:ns:yang:" +
 285             "augment\">\n" +
 286             "    <ll9>abc</ll9>\n" +
 287             "    <ll9>abc</ll9>\n" +
 288             "    <list9>\n" +
 289             "        <leaf27>abc</leaf27>\n" +
 290             "    </list9>\n" +
 291             "    <list9>\n" +
 292             "        <leaf27>abc</leaf27>\n" +
 293             "    </list9>\n" +
 294             "    <leaf28>abc</leaf28>\n" +
 295             "    <cont12>\n" +
 296             "        <leaf26>abc</leaf26>\n" +
 297             "    </cont12>\n" +
 298             "</cont13>\n" +
 299             "<list7 xmlns=\"urn:opendaylight:params:xml:ns:yang:a" +
 300             "ugment\">\n" +
 301             "    <leaf14>test</leaf14>\n" +
 302             "</list7>\n" +
 303             "<list7 xmlns=\"urn:opendaylight:params:xml:ns:yang:a" +
 304             "ugment\">\n" +
 305             "    <leaf14>create</leaf14>\n" +
 306             "</list7>\n" +
 307             "<leaf15 xmlns=\"urn:opendaylight:params:xml:ns:yang:" +
 308             "augment\">abc</leaf15>\n" +
 309             "<cont5 xmlns=\"urn:opendaylight:params:xml:ns:yang:a" +
 310             "ugment\">\n" +
 311             "    <leaf13>true</leaf13>\n" +
 312             "</cont5>";
 313
 314     static final String ENCODE_TO_XML_YANG_AUG_POST = "<?xml version=\"1.0\"" +
 315             " encoding=\"UTF-8\" standalone=\"no\"?>\n" +
 316             "<leaf10 xmlns=\"urn:opendaylight:params:xml:ns:yang:test\">abc" +
 317             "</leaf10>" +
 318             ENCODE_TO_XML_YANG_COMMON + "\n";
 319
 320     static final String ENCODE_TO_XML_YANG_PUT = "<?xml version=\"1.0\" enc" +
 321             "oding=\"UTF-8\" standalone=\"no\"?>\n" +
 322             "<cont4 xmlns=\"urn:opendaylight:params:xml:ns:yang:test\">\n" +
 323             "    <leaf10>abc</leaf10>" +
 324             addSpace(ENCODE_TO_XML_YANG_COMMON, 4) + "\n</cont4>\n";
 325
 326     static final String ENCODE_TO_XML_YANG = "<?xml version=\"1.0\" encoding" +
 327             "=\"UTF-8\" standalone=\"no\"?>\n" +
 328             "<cont2 xmlns=\"urn:opendaylight:params:xml:ns:yang:test\">\n" +
 329             "    <list1>\n" +
 330             "        <ll1>abc</ll1>\n" +
 331             "        <ll1>abc</ll1>\n" +
 332             "        <leaf1>true</leaf1>\n" +
 333             "        <ll2>abc</ll2>\n" +
 334             "        <ll2>abc</ll2>\n" +
 335             "        <list5>\n" +
 336             "            <leaf9>abc</leaf9>\n" +
 337             "        </list5>\n" +
 338             "        <list5>\n" +
 339             "            <leaf9>abc</leaf9>\n" +
 340             "        </list5>\n" +
 341             "        <leaf3>abc</leaf3>\n" +
 342             "        <leaf2>abc</leaf2>\n" +
 343             "        <list4>\n" +
 344             "            <leaf8>abc</leaf8>\n" +
 345             "        </list4>\n" +
 346             "        <list4>\n" +
 347             "            <leaf8>abc</leaf8>\n" +
 348             "        </list4>\n" +
 349             "        <cont4>\n" +
 350             "            <leaf11>abc</leaf11>\n" +
 351             "        </cont4>\n" +
 352             "    </list1>\n" +
 353             "    <list1>\n" +
 354             "        <ll1>abc</ll1>\n" +
 355             "        <ll1>abc</ll1>\n" +
 356             "        <leaf1>true</leaf1>\n" +
 357             "        <ll2>abc</ll2>\n" +
 358             "        <ll2>abc</ll2>\n" +
 359             "        <leaf3>abc</leaf3>\n" +
 360             "        <list5>\n" +
 361             "            <leaf9>abc</leaf9>\n" +
 362             "        </list5>\n" +
 363             "        <list5>\n" +
 364             "            <leaf9>abc</leaf9>\n" +
 365             "        </list5>\n" +
 366             "        <list4>\n" +
 367             "            <leaf8>abc</leaf8>\n" +
 368             "        </list4>\n" +
 369             "        <list4>\n" +
 370             "            <leaf8>abc</leaf8>\n" +
 371             "        </list4>\n" +
 372             "        <leaf2>abc</leaf2>\n" +
 373             "        <cont4>\n" +
 374             "            <leaf11>abc</leaf11>\n" +
 375             "        </cont4>\n" +
 376             "    </list1>\n" +
 377             "    <ll3>abc</ll3>\n" +
 378             "    <ll3>abc</ll3>\n" +
 379             "    <ll5>abc</ll5>\n" +
 380             "    <ll5>abc</ll5>\n" +
 381             "    <cont4>\n" +
 382             "        <leaf10>abc</leaf10>"+
 383             addSpace(ENCODE_TO_XML_YANG_COMMON, 8) + "\n" +
 384             "    </cont4>\n" +
 385             "    <ll4>abc</ll4>\n" +
 386             "    <ll4>abc</ll4>\n" +
 387             "    <cont3>\n" +
 388             "        <leaf10>abc</leaf10>\n" +
 389             "    </cont3>\n" +
 390             "    <leaf5>abc</leaf5>\n" +
 391             "    <list2>\n" +
 392             "        <leaf4>abc</leaf4>\n" +
 393             "    </list2>\n" +
 394             "    <list2>\n" +
 395             "        <leaf4>abc</leaf4>\n" +
 396             "    </list2>\n" +
 397             "    <leaf12>abc</leaf12>\n" +
 398             "    <leaf6>abc</leaf6>\n" +
 399             "    <list6>\n" +
 400             "        <leaf11>abc</leaf11>\n" +
 401             "    </list6>\n" +
 402             "    <list6>\n" +
 403             "        <leaf11>abc</leaf11>\n" +
 404             "    </list6>\n" +
 405             "</cont2>\n";
 406
 407     static final String ENCODE_TO_JSON_RPC = "{\n" +
 408             "    \"test-yang:input\": {\n" +
 409             "        \"leaf30\": \"abc\",\n" +
 410             "        \"list10\": [\n" +
 411             "            {\n" +
 412             "                \"leaf29\": \"abc\"\n" +
 413             "            },\n" +
 414             "            {\n" +
 415             "                \"leaf29\": \"abc\"\n" +
 416             "            }\n" +
 417             "        ],\n" +
 418             "        \"cont15\": {\n" +
 419             "            \"leaf31\": \"abc\"\n" +
 420             "        },\n" +
 421             "        \"cont14\": {\n" +
 422             "            \"leaf28\": \"abc\"\n" +
 423             "        },\n" +
 424             "        \"cont13\": {\n" +
 425             "            \"list9\": [\n" +
 426             "                {\n" +
 427             "                    \"leaf27\": \"abc\"\n" +
 428             "                },\n" +
 429             "                {\n" +
 430             "                    \"leaf27\": \"abc\"\n" +
 431             "                }\n" +
 432             "            ],\n" +
 433             "            \"ll9\": [\n" +
 434             "                \"abc\",\n" +
 435             "                \"abc\"\n" +
 436             "            ],\n" +
 437             "            \"leaf28\": \"abc\"\n" +
 438             "        },\n" +
 439             "        \"ll10\": [\n" +
 440             "            \"abc\",\n" +
 441             "            \"abc\"\n" +
 442             "        ]\n" +
 443             "    }\n" +
 444             "}";
 445
 446     static final String DECODE_FROM_JSON_RPC = "{\n" +
 447             "    \"test-yang:output\": {\n" +
 448             "        \"cont16\": {\n" +
 449             "            \"leaf32\": \"abc\"\n" +
 450             "        },\n" +
 451             "        \"list11\": [\n" +
 452             "            {\n" +
 453             "                \"leaf33\": \"abc\"\n" +
 454             "            },\n" +
 455             "            {\n" +
 456             "                \"leaf33\": \"abc\"\n" +
 457             "            }\n" +
 458             "        ],\n" +
 459             "        \"leaf34\": \"abc\",\n" +
 460             "        \"ll11\": [\n" +
 461             "            \"abc\",\n" +
 462             "            \"abc\"\n" +
 463             "        ],\n" +
 464             "        \"cont17\": {\n" +
 465             "            \"leaf35\": \"abc\"\n" +
 466             "        },\n" +
 467             "        \"cont13\": {\n" +
 468             "            \"cont12\": {\n" +
 469             "                \"leaf26\": \"abc\"\n" +
 470             "            },\n" +
 471             "            \"list9\": [\n" +
 472             "                {\n" +
 473             "                    \"leaf27\": \"abc\"\n" +
 474             "                },\n" +
 475             "                {\n" +
 476             "                    \"leaf27\": \"abc\"\n" +
 477             "                }\n" +
 478             "            ],\n" +
 479             "            \"ll9\": [\n" +
 480             "                \"abc\",\n" +
 481             "                \"abc\"\n" +
 482             "            ],\n" +
 483             "            \"leaf28\": \"abc\"\n" +
 484             "        }\n" +
 485             "    }\n" +
 486             "}";
 487
 488     static final String ENCODE_TO_XML_RPC = "<?xml version=\"1.0\" encoding" +
 489             "=\"UTF-8\" standalone=\"no\"?>\n" +
 490             "<input xmlns=\"urn:opendaylight:params:xml:ns:yang:test\">\n" +
 491             "    <leaf30>abc</leaf30>\n" +
 492             "    <list10>\n" +
 493             "        <leaf29>abc</leaf29>\n" +
 494             "    </list10>\n" +
 495             "    <list10>\n" +
 496             "        <leaf29>abc</leaf29>\n" +
 497             "    </list10>\n" +
 498             "    <cont15>\n" +
 499             "        <leaf31>abc</leaf31>\n" +
 500             "    </cont15>\n" +
 501             "    <cont14>\n" +
 502             "        <leaf28>abc</leaf28>\n" +
 503             "    </cont14>\n" +
 504             "    <cont13>\n" +
 505             "        <list9>\n" +
 506             "            <leaf27>abc</leaf27>\n" +
 507             "        </list9>\n" +
 508             "        <list9>\n" +
 509             "            <leaf27>abc</leaf27>\n" +
 510             "        </list9>\n" +
 511             "        <ll9>abc</ll9>\n" +
 512             "        <ll9>abc</ll9>\n" +
 513             "        <leaf28>abc</leaf28>\n" +
 514             "    </cont13>\n" +
 515             "    <ll10>abc</ll10>\n" +
 516             "    <ll10>abc</ll10>\n" +
 517             "</input>\n";
 518
 519     static final String DECODE_FROM_XML_RPC = "<?xml version=\"1.0\" encodi" +
 520             "ng=\"UTF-8\" standalone=\"no\"?>\n" +
 521             "<output xmlns=\"urn:opendaylight:params:xml:ns:yang:test\">\n" +
 522             "    <cont16>\n" +
 523             "        <leaf32>abc</leaf32>\n" +
 524             "    </cont16>\n" +
 525             "    <list11>\n" +
 526             "        <leaf33>abc</leaf33>\n" +
 527             "    </list11>\n" +
 528             "    <list11>\n" +
 529             "        <leaf33>abc</leaf33>\n" +
 530             "    </list11>\n" +
 531             "    <leaf34>abc</leaf34>\n" +
 532             "    <ll11>abc</ll11>\n" +
 533             "    <ll11>abc</ll11>\n" +
 534             "    <cont17>\n" +
 535             "        <leaf35>abc</leaf35>\n" +
 536             "    </cont17>\n" +
 537             "    <cont13>\n" +
 538             "        <cont12>\n" +
 539             "            <leaf26>abc</leaf26>\n" +
 540             "        </cont12>\n" +
 541             "        <list9>\n" +
 542             "            <leaf27>abc</leaf27>\n" +
 543             "        </list9>\n" +
 544             "        <list9>\n" +
 545             "            <leaf27>abc</leaf27>\n" +
 546             "        </list9>\n" +
 547             "        <ll9>abc</ll9>\n" +
 548             "        <ll9>abc</ll9>\n" +
 549             "        <leaf28>abc</leaf28>\n" +
 550             "    </cont13>\n" +
 551             "</output>";
 552
 553     /**
 554      * Adds the specified number of space required for a req in each line.
 555      *
 556      * @param req request message
 557      * @param i   number of space
 558      * @return space appended string
 559      */
 560     public static String addSpace(String req, int i) {
 561         StringBuilder space = new StringBuilder();
 562         for (int sp = 0; sp < i; sp++) {
 563             space = space.append(" ");
 564         }
 565         return req.replaceAll("\n", "\n" + space.toString());
 566     }
 567 }