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Adapt to Neo4j-Migrations 1.x API. #17315

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Dec 15, 2021
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Adapt to Neo4j-Migrations 1.x API. #17315

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28 changes: 19 additions & 9 deletions generators/server/templates/src/main/java/package/config/neo4j/Neo4jMigrations.java.ejs
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Original file line number Diff line number Diff line change
Expand Up @@ -20,6 +20,7 @@ package <%= packageName %>.config.neo4j;

import ac.simons.neo4j.migrations.core.JavaBasedMigration;
import ac.simons.neo4j.migrations.core.MigrationContext;
import ac.simons.neo4j.migrations.core.MigrationsException;

import java.io.IOException;
import java.util.List;
Expand All @@ -46,11 +47,16 @@ final class Neo4jMigrations {
static class V0001__CreateUsers implements JavaBasedMigration {

@Override
public void apply(MigrationContext context) throws IOException {
public void apply(MigrationContext context) {

ObjectMapper om = new ObjectMapper();
ResourcePatternResolver resourcePatternResolver = new PathMatchingResourcePatternResolver();
Resource[] resources = resourcePatternResolver.getResources("classpath:config/neo4j/migrations/user__*.json");
Resource[] resources;
try {
resources = resourcePatternResolver.getResources("classpath:config/neo4j/migrations/user__*.json");
} catch (IOException e) {
throw new MigrationsException("Could not load user definition resources.", e);
}

JavaType type = om.getTypeFactory().
constructMapType(Map.class, String.class, Object.class);
Expand All @@ -69,13 +75,17 @@ final class Neo4jMigrations {
try (Session session = context.getSession()) {

for (Resource resource : resources) {
Map<String, Object> user = om.readValue(resource.getInputStream(), type);
user.put("user_id", UUID.randomUUID().toString());
List<String> authorities = (List<String>) user.remove("authorities");
user.remove("_class");

session.writeTransaction(
t -> t.run(query, Values.parameters("user", user, "authorities", authorities)).consume());
try {
Map<String, Object> user = om.readValue(resource.getInputStream(), type);
user.put("user_id", UUID.randomUUID().toString());
List<String> authorities = (List<String>) user.remove("authorities");
user.remove("_class");

session.writeTransaction(
t -> t.run(query, Values.parameters("user", user, "authorities", authorities)).consume());
} catch (IOException e) {
throw new MigrationsException("Could not load resource " + resource.getDescription() + ".", e);
}
}
}
}
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