<buffers_uri>/{jobID}[.<format>]
buffersJob 资源表示一个缓冲区分析作业。通过对 buffersJob 资源执行 GET 请求，可以获取一个缓冲区分析作业详细配置信息，可通过 ID 号（{jobID}） 来获取。
支持的方法：
支持的表述格式：RJSON、JSON、HTML、XML。
对如下 URI 执行 HTTP 请求，以 rjson 输出格式为例加以说明，其中，supermapiserver 是服务器名。
http://supermapiserver:8090/iserver/services/distributedanalyst/rest/v1/jobs/spatialanalyst/buffers/{jobID}.rjson
获取一个缓冲区分析作业详细配置信息。
对 buffersJob 资源执行 GET 请求，返回操作结果的结构如下：
| 字段 | 类型 | 说明 |
| id | String | 应用ID。 |
| state | SparkJobState | 任务状态。包括执行状态、起止时间、耗时等。 |
| setting | SparkJobSetting | 列举当前缓冲区分析任务的详细信息。 |
对 buffersJob 资源执行 GET 请求：http://supermapiserver:8090/iserver/services/distributedanalyst/rest/v1/jobs/spatialanalyst/buffers/9931e83c_0ec5_44d5_b2d1_55ac2be50ec0.rjson ，则返回的rjson表述结果如下：
{
"id": "9931e83c_0ec5_44d5_b2d1_55ac2be50ec0",
"setting": {
"DEFAULT_MASTER_ADRESS": "local[*] ",
"analyst": {
"bounds": "-74.050,40.650,-73.850,40.850",
"dissolveField": "LocationID",
"distance": "",
"distanceField": "",
"distanceUnit": "Meter"
},
"appName": "CreateBuffers",
"args": [
"--input",
"{\"sliceNum\":20,\"type\":\"udb\",\"info\":[{\"server\":\"F:\\\\1.package\\\\20171014\\\\supermap_iserver_901_15413_4668_win64_zip\\\\samples\\\\data\\\\ProcessingData\\\\processing.udb\",\"datasetNames\":[\"newyorkZone_R\"]}]}",
"--distanceUnit",
"Meter",
"--bounds",
"-74.050,40.650,-73.850,40.850",
"--dissolveField",
"LocationID",
"--output",
"{\"server\":\"192.168.120.21\",\"password\":\"supermap\",\"database\":\"supermap2\",\"datasetName\":\"analystResult_1747644361\",\"blockingWrite\":null,\"type\":\"pg\",\"user\":\"postgres\"}"
],
"contextSetting": null,
"input": {
"datasetInfo": {
"available": true,
"bounds": "Left=-74.25551784310493,Bottom=40.496084221255856,Right=-73.70014827248451,Top=40.91538866049913",
"datasetName": "newyorkZone_R",
"datasetType": "REGION",
"epsgCode": 4326,
"name": "samples_processing_newyorkZone_R",
"readOnly": false,
"type": "UDB",
"url": "../../samples/data/ProcessingData/processing.udb"
},
"datasetName": "samples_processing_newyorkZone_R",
"numSlices": 0
},
"mainClass": "com.supermap.bdt.main.CreateBuffersMain",
"output": {
"datasetName": "analystResult_1747644361",
"datasourceInfo": {
"alias": "supermap2_pg",
"connect": true,
"dataBase": "supermap2",
"driver": "PostgreSQL ANSI",
"engineType": "POSTGRESQL",
"exclusive": false,
"openLinkTable": false,
"password": "supermap",
"readOnly": false,
"server": "192.168.120.21",
"user": "postgres"
},
"outputPath": "F:\\1.package\\20171014\\supermap_iserver_901_15413_4668_win64_zip\\webapps\\iserver\\processingResultData\\Analyst\\9931e83c_0ec5_44d5_b2d1_55ac2be50ec0\\buffers.smwu",
"type": "pg"
},
"serviceInfo": {
"targetDataPath": "F:\\1.package\\20171014\\supermap_iserver_901_15413_4668_win64_zip\\webapps\\iserver\\processingResultData\\Analyst\\9931e83c_0ec5_44d5_b2d1_55ac2be50ec0\\buffers.smwu",
"targetServiceInfos": [
{
"serviceAddress": "http://supermapiserver:8090/iserver/services/data-buffers10/rest",
"serviceType": "RESTDATA"
},
{
"serviceAddress": "http://supermapiserver:8090/iserver/services/map-buffers10/rest",
"serviceType": "RESTMAP"
}
]
},
"serviceRoot": "http://supermapiserver:8090/iserver/services/",
"sparkLogFile": null
},
"state": {
"elapsedTime": 10427,
"endState": true,
"endTime": 1508222314470,
"errorMsg": null,
"errorStackTrace": null,
"publisherelapsedTime": 3884,
"runState": "FINISHED",
"startTime": 1508222300005
}
}
返回跟 GET 请求一样的 HTTP 响应头，但是没有响应实体。可以在不必传输整个响应内容的情况下，获取包含在响应消息头中的元数据信息。元数据信息包括媒体类型，字符编码，压缩编码，实体内容长度等。
HEAD 请求可以用来判断 buffersJob 资源是否存在，或者客户端是否有权限访问 buffersJob 资源。通过对加.<format>的 URI 执行 HEAD 请求，还可以快速判断 buffersJob 资源是否支持<format>格式的表述。