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reformat the java code with 4 spaces
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@j143
j143 committed Jun 3, 2021
1 parent 1347c41 commit 94ceec0
Showing 1 changed file with 67 additions and 85 deletions.
152 changes: 67 additions & 85 deletions spanner-with-java/src/main/java/page/janardhan/labs/App.java
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Original file line number Diff line number Diff line change
Expand Up @@ -10,11 +10,9 @@

/**
* Hello world!
*
*/
public class App
{

public class App {

static class Song {
final String songId;
final String title;
Expand All @@ -29,91 +27,74 @@ static class Song {
}
}

static class Singer {
/** TODO: placeholder **/
}

/* https://en.wikipedia.org/wiki/List_of_K-pop_songs_on_the_Billboard_charts */
/* https://docs.google.com/spreadsheets/d/1LibIJIUeZ9Fr2nA31uwk_8j7GvMIKWYVY_1nihYu2Iw/edit?usp=sharing */
static final List<Song> SONGS =
Arrays.asList(
new Song(getUUID(), "Dynamite", 2020, 1),
new Song(getUUID(), "Savage Love ", 2020, 1),
new Song(getUUID(), "Ice Cream", 2020, 8),
new Song(getUUID(), "How You Like That", 2020, 24),
new Song(getUUID(), "Baby Shark", 2020, 38),
new Song(getUUID(), "Not Shy", 2020, 124),
new Song(getUUID(), "Boy with Luv", 2020, 151),
new Song(getUUID(), "Back Door", 2020, 169),
new Song(getUUID(), "I Love You", 2020, 170),
new Song(getUUID(), "Lovesick Girls", 2020, 2),
new Song(getUUID(), "Bet You Wanna", 2020, 25),
new Song(getUUID(), "Pretty Savage", 2020, 32),
new Song(getUUID(), "Crazy Over You", 2020, 49),
new Song(getUUID(), "Love to Hate Me", 2020, 54),
new Song(getUUID(), "You Never Know", 2020, 64),
new Song(getUUID(), "Make A Wish ", 2020, 128),
new Song(getUUID(), "Ddu", 2020, 158),
new Song(getUUID(), "Kill This Love", 2020, 181),
new Song(getUUID(), "I Can", 2020, 31),
new Song(getUUID(), "More", 2020, 125),
new Song(getUUID(), "Black Mamba", 2020, 138),
new Song(getUUID(), "Life Goes On", 2020, 1),
new Song(getUUID(), "Blue ", 2020, 9),
new Song(getUUID(), "Stay", 2020, 16),
new Song(getUUID(), "Fly to My Room", 2020, 22),
new Song(getUUID(), "Telepathy", 2020, 28),
new Song(getUUID(), "Dis", 2020, 30),
new Song(getUUID(), "Celebrity", 2021, 78),
new Song(getUUID(), "On the Ground", 2021, 1),
new Song(getUUID(), "Gone", 2021, 29),
new Song(getUUID(), "Film Out", 2021, 5),
new Song(getUUID(), "In the Morning", 2021, 34),
new Song(getUUID(), "Hot Sauce", 2021, 96),
new Song(getUUID(), "Next Level", 2021, 97)
);
Arrays.asList(
new Song(getUUID(), "Dynamite", 2020, 1),
new Song(getUUID(), "Savage Love ", 2020, 1),
new Song(getUUID(), "Ice Cream", 2020, 8),
new Song(getUUID(), "How You Like That", 2020, 24),
new Song(getUUID(), "Baby Shark", 2020, 38),
new Song(getUUID(), "Not Shy", 2020, 124),
new Song(getUUID(), "Boy with Luv", 2020, 151),
new Song(getUUID(), "Back Door", 2020, 169),
new Song(getUUID(), "I Love You", 2020, 170),
new Song(getUUID(), "Lovesick Girls", 2020, 2),
new Song(getUUID(), "Bet You Wanna", 2020, 25),
new Song(getUUID(), "Pretty Savage", 2020, 32),
new Song(getUUID(), "Crazy Over You", 2020, 49),
new Song(getUUID(), "Love to Hate Me", 2020, 54),
new Song(getUUID(), "You Never Know", 2020, 64),
new Song(getUUID(), "Make A Wish ", 2020, 128),
new Song(getUUID(), "Ddu", 2020, 158),
new Song(getUUID(), "Kill This Love", 2020, 181),
new Song(getUUID(), "I Can", 2020, 31),
new Song(getUUID(), "More", 2020, 125),
new Song(getUUID(), "Black Mamba", 2020, 138),
new Song(getUUID(), "Life Goes On", 2020, 1),
new Song(getUUID(), "Blue ", 2020, 9),
new Song(getUUID(), "Stay", 2020, 16),
new Song(getUUID(), "Fly to My Room", 2020, 22),
new Song(getUUID(), "Telepathy", 2020, 28),
new Song(getUUID(), "Dis", 2020, 30),
new Song(getUUID(), "Celebrity", 2021, 78),
new Song(getUUID(), "On the Ground", 2021, 1),
new Song(getUUID(), "Gone", 2021, 29),
new Song(getUUID(), "Film Out", 2021, 5),
new Song(getUUID(), "In the Morning", 2021, 34),
new Song(getUUID(), "Hot Sauce", 2021, 96),
new Song(getUUID(), "Next Level", 2021, 97)
);

// https://cloud.google.com/spanner/docs/samples/spanner-update-data
// https://cloud.google.com/spanner/docs/samples/spanner-insert-data
static void writeSongData(DatabaseClient dbClient) {
List<Mutation> mutations = new ArrayList<>();
List<Mutation> mutations = new ArrayList<>();

// TODO: singers implementation
// for (Singer singer : SINGERS) {
// mutations.add(
// Mutation.newInsertBuilder("Singers")
// .set("SingerId")
// .to(singer.singerId)
// .set("FirstName")
// .to(singer.firstName)
// .set("LastName")
// .to(singer.lastName)
// .build());
// }
for (Song song : SONGS) {
mutations.add(
Mutation.newInsertBuilder("Songs")
.set("SongId")
.to(song.songId)
.set("Title")
.to(song.title)
.set("Year")
.to(song.year)
.set("Peak")
.to(song.peak)
.build());
}
dbClient.write(mutations);
for (Song song : SONGS) {
mutations.add(
Mutation.newInsertBuilder("Songs")
.set("SongId")
.to(song.songId)
.set("Title")
.to(song.title)
.set("Year")
.to(song.year)
.set("Peak")
.to(song.peak)
.build());
}
dbClient.write(mutations);
}

public static void main( String[] args )
{
System.out.println( "Hello World!" );
public static void main(String[] args) {
System.out.println("Hello World!");

// https://cloud.google.com/spanner/docs/samples/spanner-create-client-with-query-options
SpannerOptions options = SpannerOptions.newBuilder()
//.setDefaultQueryOptions(db, QueryOptions.newBuilder().setOptimizerVersion("1").build())
.build();
.build();
Spanner spanner = options.getService();
String instanceId = "cloudspanner-lab";
String databaseId = "demo";
Expand All @@ -122,18 +103,19 @@ public static void main( String[] args )
DatabaseClient dbClient = spanner.getDatabaseClient(DatabaseId.of(options.getProjectId(), instanceId, databaseId));
writeSongData(dbClient);
try (ResultSet resultSet = dbClient
.singleUse()
.executeQuery(Statement.of("SELECT SongId, Title, Year FROM Songs"))) {
while (resultSet.next()) {
System.out.printf(
"%d %d %s\n", resultSet.getString(0), resultSet.getString(1), resultSet.getLong(2));
} }
.singleUse()
.executeQuery(Statement.of("SELECT SongId, Title, Year FROM Songs"))) {
while (resultSet.next()) {
System.out.printf(
"%d %d %s\n", resultSet.getString(0), resultSet.getString(1), resultSet.getLong(2));
}
}
} finally {
spanner.close();
}
}

}


public static String getUUID() {
return java.util.UUID.randomUUID().toString();
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