From e6428c76ac45449799783b3db007c81d8aac0e04 Mon Sep 17 00:00:00 2001
From: karin_pettersen <karinep@stud.ntnu.no>
Date: Fri, 4 Mar 2022 08:29:27 +0100
Subject: [PATCH] Created sql statement in sort
---
src/main/java/com/application/DB/Sort.java | 90 ++++++++++++++++++++++
1 file changed, 90 insertions(+)
create mode 100644 src/main/java/com/application/DB/Sort.java
diff --git a/src/main/java/com/application/DB/Sort.java b/src/main/java/com/application/DB/Sort.java
new file mode 100644
index 0000000..ca35c66
--- /dev/null
+++ b/src/main/java/com/application/DB/Sort.java
@@ -0,0 +1,90 @@
+package com.application.DB;
+
+import com.google.auth.oauth2.GoogleCredentials;
+import com.google.auth.oauth2.ServiceAccountCredentials;
+import com.google.cloud.bigquery.*;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+
+public class Sort {
+
+
+ private static GoogleCredentials getCredentials() throws Exception {
+ File credentialsPath = new File(".\\src\\main\\resources\\com.application\\sf-drying-optimization-1e234ad2b0f4.json");
+
+ // Load credentials from JSON key file. If you can't set the GOOGLE_APPLICATION_CREDENTIALS
+ // environment variable, you can explicitly load the credentials file to construct the
+ // credentials.
+ GoogleCredentials credentials;
+ try (FileInputStream serviceAccountStream = new FileInputStream(credentialsPath)) {
+ credentials = ServiceAccountCredentials.fromStream(serviceAccountStream);
+ }
+ return credentials;
+ }
+
+ // Step 1: Initialize BigQuery service
+ // Here we set our project ID and get the `BigQuery` service object
+ // this is the interface to our BigQuery instance that
+ // we use to execute jobs on
+ private static BigQuery getBuilder() throws Exception {
+ BigQuery bigquery = BigQueryOptions.newBuilder().
+ setCredentials(getCredentials()).
+ setProjectId("sf-drying-optimization")
+ .build().getService();
+ return bigquery;
+ }
+
+
+ public static void main(String[] args) throws Exception {
+ Sort.getFromExistingTable();
+ }
+
+
+ public static void getFromExistingTable() throws Exception {
+
+
+ // Step 2: Prepare query job
+ // A "QueryJob" is a type of job that executes SQL queries
+ // we create a new job configuration from our SQL query and
+ final String GET_WORD_COUNT = "SELECT CalculatedStart, CalculatedStop FROM sf-drying-optimization.124.int_dk_valmaticsdryingbatches W" +
+ "HERE Name Like '%Gran%' OR Name LIKE '%2ex%' OR Name LIKE '%47x175%" +
+ "AND BETWEEN \"2020-06-09\" AND \"2020-06-29\" ORDER BY TimeStamp";
+
+ QueryJobConfiguration queryConfig =
+ QueryJobConfiguration.newBuilder(GET_WORD_COUNT).build();
+
+ // Step 3: Run the job on BigQuery
+ // create a `Job` instance from the job configuration using the BigQuery service
+ // the job starts executing once the `create` method executes
+
+ Job queryJob = getBuilder().create(JobInfo.newBuilder(queryConfig).build());
+ queryJob = queryJob.waitFor();
+ // the waitFor method blocks until the job completes
+ // and returns `null` if the job doesn't exist anymore
+ if (queryJob == null) {
+ throw new Exception("job no longer exists");
+ }
+ // once the job is done, check if any error occured
+ if (queryJob.getStatus().getError() != null) {
+ throw new Exception(queryJob.getStatus().getError().toString());
+ }
+
+ // Step 4: Display results
+ // Print out a header line, and iterate through the
+ // query results to print each result in a new line
+ System.out.println("Timestamp\tVarient value");
+ TableResult result = queryJob.getQueryResults();
+ for (FieldValueList row : result.iterateAll()) {
+ // We can use the `get` method along with the column
+ // name to get the corresponding row entry
+
+ int variantValue = row.get("VariantValue").getNumericValue().intValue();
+ String timeStamp = row.get("TimeStamp").getStringValue();
+ System.out.printf("%s\t%d\n", timeStamp, variantValue);
+
+
+ }
+ }
+}
--
GitLab