public void importa(BatchInserter inserter, LuceneBatchInserterIndexProvider indexProvider) {
BatchInserterIndex pessoas =
indexProvider.nodeIndex("pessoas", MapUtil.stringMap("type", "fulltext"));
Scanner sc = new Scanner(ImportadorPessoas.class.getResourceAsStream("/import/pessoas"));
System.out.println("Início da importação das pessoas");
while (sc.hasNextLine()) {
String linha = sc.nextLine();
String[] informacoesDePessoa = linha.split(";");
long id = Long.parseLong(informacoesDePessoa[0]);
String nome = informacoesDePessoa[1];
Integer idade = Integer.parseInt(informacoesDePessoa[2]);
Map<String, Object> propriedades = MapUtil.map("nome", nome, "idade", idade);
inserter.createNode(id, propriedades);
pessoas.add(id, MapUtil.map("nome", nome));
inserter.createRelationship(0, id, Relacionamentos.PESSOA, null);
}
pessoas.flush();
System.out.println("Fim da importação das pessoas");
}
public void importFromFile(String filePath) throws IOException {
Map<String, Long> cache = new HashMap<String, Long>(COUNT);
final File storeDir = new File(this.path);
org.apache.commons.io.FileUtils.deleteDirectory(storeDir);
BatchInserter batchInserter = new BatchInserterImpl(storeDir.getAbsolutePath());
final BatchInserterIndexProvider indexProvider =
new LuceneBatchInserterIndexProvider(batchInserter);
final BatchInserterIndex index =
indexProvider.nodeIndex("nodes", MapUtil.stringMap("type", "exact"));
BufferedReader reader = new BufferedReader(new FileReader(filePath));
String line = null;
int nodes = 0;
long time = System.currentTimeMillis();
long batchTime = time;
while ((line = reader.readLine()) != null) {
final String[] nodeNames = line.split("\\|");
final String name = nodeNames[0];
final Map<String, Object> props = MapUtil.map("name", name);
final long node = batchInserter.createNode(props);
index.add(node, props);
cache.put(name, node);
nodes++;
if ((nodes % REPORT_COUNT) == 0) {
System.out.printf(
"%d nodes created. Took %d %n", nodes, (System.currentTimeMillis() - batchTime));
batchTime = System.currentTimeMillis();
}
}
System.out.println("Creating nodes took " + (System.currentTimeMillis() - time) / 1000);
index.flush();
reader.close();
reader = new BufferedReader(new FileReader(filePath));
int rels = 0;
time = System.currentTimeMillis();
batchTime = time;
String relationshipType = "KNOWS";
while ((line = reader.readLine()) != null) {
final String[] nodeNames = line.split("\\|");
final String name = nodeNames[0];
// final Long from = index.get("name", name).getSingle();
Long from = cache.get(name);
for (int j = 1; j < nodeNames.length; j++) {
// final Long to = index.get("name", nodeNames[j]).getSingle();
final Long to = cache.get(name);
batchInserter.createRelationship(
from, to, DynamicRelationshipType.withName(relationshipType), null);
}
rels++;
if ((rels % REPORT_COUNT) == 0) {
System.out.printf(
"%d relationships created. Took %d %n", rels, (System.currentTimeMillis() - batchTime));
batchTime = System.currentTimeMillis();
}
}
System.out.println("Creating relationships took " + (System.currentTimeMillis() - time) / 1000);
indexProvider.shutdown();
batchInserter.shutdown();
}
private static long createGenomeElementNode(
String version,
String comment,
String definition,
BatchInserter inserter,
BatchInserterIndex index) {
genomeElementProperties.put(GenomeElementNode.VERSION_PROPERTY, version);
genomeElementProperties.put(GenomeElementNode.COMMENT_PROPERTY, comment);
genomeElementProperties.put(GenomeElementNode.DEFINITION_PROPERTY, definition);
long genomeElementId = inserter.createNode(genomeElementProperties);
index.add(
genomeElementId, MapUtil.map(GenomeElementNode.GENOME_ELEMENT_VERSION_INDEX, version));
return genomeElementId;
}