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| .project | ||
| .settings/* | ||
| *.log | ||
| *.png | ||
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| # Mobile Tools for Java (J2ME) | ||
| .mtj.tmp/ | ||
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| @@ -1,5 +1,5 @@ | ||
| #!/usr/bin/env bash | ||
| BIN=`dirname "$0"` | ||
| BASE=$BIN/../core | ||
| java -Xmx4g -cp "$BASE/config:$BASE/target/classes:$BASE/target/*" \ | ||
| java -Xmx4g -cp "$BASE/target/classes:$BASE/target/*" \ | ||
| edu.stanford.futuredata.macrobase.cli.CliRunner "$@" |
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| { | ||
| "pipeline": "CubePipeline", | ||
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| "inputURI": "https://raw.githubusercontent.com/stanford-futuredata/macrobase/master/core/demo/sample_cubed_quantiles.csv", | ||
| "restHeader": {}, | ||
| "usePost": false, | ||
| "classifier": "quantile", | ||
| "countColumn": "count", | ||
| "meanColumn": "mean", | ||
| "quantileColumns": { | ||
| "min": 0.0, | ||
| "p10": 0.1, | ||
| "p50": 0.5, | ||
| "p90": 0.9, | ||
| "max": 1.0 | ||
| }, | ||
| "cutoff": 1.0, | ||
| "includeLo": true, | ||
| "includeHi": false, | ||
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| "attributes": ["location", "version"], | ||
| "minSupport": 0.2, | ||
| "minRatioMetric": 10.0 | ||
| } |
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107 changes: 107 additions & 0 deletions
107
core/src/main/java/edu/stanford/futuredata/macrobase/ingest/RESTDataFrameLoader.java
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| package edu.stanford.futuredata.macrobase.ingest; | ||
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| import edu.stanford.futuredata.macrobase.datamodel.DataFrame; | ||
| import edu.stanford.futuredata.macrobase.datamodel.Schema; | ||
| import okhttp3.*; | ||
| import org.apache.commons.csv.CSVFormat; | ||
| import org.apache.commons.csv.CSVParser; | ||
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| import java.io.IOException; | ||
| import java.net.URL; | ||
| import java.util.Map; | ||
| import java.util.concurrent.TimeUnit; | ||
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| public class RESTDataFrameLoader implements DataFrameLoader{ | ||
| private String baseURL; | ||
| private Map<String, String> headerParams; | ||
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| private boolean usePost = true; | ||
| private String jsonBody; | ||
| private Map<String, String> getParams; | ||
| private Map<String, Schema.ColType> types; | ||
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| private OkHttpClient client; | ||
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| public RESTDataFrameLoader( | ||
| String url, | ||
| Map<String, String> headerParams | ||
| ) { | ||
| this.baseURL = url; | ||
| this.headerParams = headerParams; | ||
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| OkHttpClient.Builder b = new OkHttpClient.Builder(); | ||
| b.hostnameVerifier((hostname, session) -> true); | ||
| b.connectTimeout(20, TimeUnit.SECONDS); | ||
| this.client = b.build(); | ||
| } | ||
| public void setUsePost(boolean flag) { | ||
| this.usePost = flag; | ||
| } | ||
| public void setJsonBody(String jsonBody) { | ||
| this.jsonBody = jsonBody; | ||
| } | ||
| public void setGetParams(Map<String, String> getParams) { | ||
| this.getParams = getParams; | ||
| } | ||
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| private String postRequest() throws IOException { | ||
| URL url = new URL(baseURL); | ||
| MediaType JSON = MediaType.parse("application/json; charset=utf-8"); | ||
| RequestBody body = RequestBody.create(JSON, jsonBody); | ||
| Request.Builder requestBuilder = new Request.Builder() | ||
| .url(url) | ||
| .post(body); | ||
| for (String headerKey: headerParams.keySet()) { | ||
| requestBuilder.addHeader(headerKey, headerParams.get(headerKey)); | ||
| } | ||
| Request request = requestBuilder.build(); | ||
| Response response = this.client.newCall(request).execute(); | ||
| return response.body().string(); | ||
| } | ||
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| private String getRequest() throws IOException { | ||
| URL url = new URL(baseURL); | ||
| HttpUrl.Builder httpBuilder = HttpUrl.get(url).newBuilder(); | ||
| if (getParams != null) { | ||
| for (String paramName : getParams.keySet()) { | ||
| httpBuilder.addQueryParameter(paramName, getParams.get(paramName)); | ||
| } | ||
| } | ||
| HttpUrl fullURL = httpBuilder.build(); | ||
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| Request.Builder requestBuilder = new Request.Builder() | ||
| .url(fullURL) | ||
| .get(); | ||
| for (String headerKey: headerParams.keySet()) { | ||
| requestBuilder.addHeader(headerKey, headerParams.get(headerKey)); | ||
| } | ||
| Request request = requestBuilder.build(); | ||
| Response response = this.client.newCall(request).execute(); | ||
| return response.body().string(); | ||
| } | ||
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| @Override | ||
| public DataFrameLoader setColumnTypes(Map<String, Schema.ColType> types) { | ||
| this.types = types; | ||
| return this; | ||
| } | ||
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| @Override | ||
| public DataFrame load() throws Exception { | ||
| String response; | ||
| if (usePost) { | ||
| response = postRequest(); | ||
| } else { | ||
| response = getRequest(); | ||
| } | ||
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| CSVParser csvParser = CSVParser.parse( | ||
| response, | ||
| CSVFormat.DEFAULT.withHeader() | ||
| ); | ||
| CSVDataFrameParser dfParser = new CSVDataFrameParser(csvParser); | ||
| dfParser.setColumnTypes(types); | ||
| return dfParser.load(); | ||
| } | ||
| } |
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