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import java.sql.Connection; |
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import java.sql.DriverManager; |
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import java.sql.ResultSet; |
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import java.sql.SQLException; |
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import java.sql.SQLWarning; |
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import java.sql.Statement; |
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import java.io.File; |
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import java.io.IOException; |
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import java.io.InputStream; |
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import java.io.Writer; |
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import java.util.HashMap; |
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import java.util.Map; |
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import org.neo4j.graphdb.Direction; |
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import org.neo4j.graphdb.DynamicLabel; |
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import org.neo4j.graphdb.DynamicRelationshipType; |
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import org.neo4j.graphdb.GraphDatabaseService; |
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import org.neo4j.graphdb.Label; |
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import org.neo4j.graphdb.Node; |
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import org.neo4j.graphdb.RelationshipType; |
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import org.neo4j.helpers.collection.MapUtil; |
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import org.neo4j.unsafe.batchinsert.BatchInserter; |
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import org.neo4j.unsafe.batchinsert.BatchInserters; |
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public class Importer { |
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public static void main(String[] argv) { |
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Map<String, String> config = new HashMap<String, String>(); |
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config.put( "neostore.nodestore.db.mapped_memory", "90M" ); |
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BatchInserter inserter = BatchInserters.inserter("target/batchinserter-example-config", config ); |
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//BatchInserterIndexProvider indexProvider = new LuceneBatchInserterIndexProvider(inserter); |
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//BatchInserterIndex names = indexProvider.nodeIndex("names", MapUtil.stringMap("type", "exact")); |
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//names.setCacheCapacity("name", 100000); |
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System.out.println("-------- PostgreSQL " |
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+ "JDBC Connection Testing ------------"); |
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try { |
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Class.forName("org.postgresql.Driver"); |
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} catch (ClassNotFoundException e) { |
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System.out.println("Where is your PostgreSQL JDBC Driver? " |
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+ "Include in your library path!"); |
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e.printStackTrace(); |
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} |
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System.out.println("PostgreSQL JDBC Driver Registered!"); |
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Connection conn = null; |
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try { |
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conn = DriverManager.getConnection( |
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"jdbc:postgresql://127.0.0.1:5432/contractDashboard", |
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"postgres", "snmc"); |
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} catch (SQLException e) { |
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System.out.println("Connection Failed! Check output console"); |
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e.printStackTrace(); |
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} |
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if (conn != null) { |
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System.out.println("You made it, take control your database now!"); |
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} else { |
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System.out.println("Failed to make connection!"); |
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} |
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try { |
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// Print all warnings |
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for (SQLWarning warn = conn.getWarnings(); warn != null; warn = warn.getNextWarning()) { |
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System.out.println("SQL Warning:"); |
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System.out.println("State : " + warn.getSQLState()); |
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System.out.println("Message: " + warn.getMessage()); |
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System.out.println("Error : " + warn.getErrorCode()); |
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} |
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// Get a statement from the connection |
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Statement stmt = conn.createStatement(); |
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// Execute the query |
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ResultSet rs = stmt.executeQuery("SELECT contractnotice.\"agencyName\", " |
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+ " (case when \"supplierABN\" != 0 THEN \"supplierABN\"::text ELSE \"supplierName\" END) as supplierID , max(contractnotice.\"supplierName\") as \"supplierName\",sum(value) as sum " |
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+ "FROM public.contractnotice GROUP BY contractnotice.\"agencyName\", " |
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+ " (case when \"supplierABN\" != 0 THEN \"supplierABN\"::text ELSE \"supplierName\" END)"); |
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HashMap<String, Long> supplierIDs = new HashMap<String, Long>(); |
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HashMap<String, Long> agencyIDs = new HashMap<String, Long>(); |
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Label agencyLabel = DynamicLabel.label( "Agency" ); |
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inserter.createDeferredSchemaIndex( agencyLabel ).on( "name" ); |
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Label supplierLabel = DynamicLabel.label( "Supplier" ); |
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inserter.createDeferredSchemaIndex( agencyLabel ).on( "name" ); |
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// Loop through the result set |
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while (rs.next()) { |
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long supplierID, agencyID; |
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String supplierKey; |
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if (agencyIDs.get(rs.getString("agencyName")) == null) { |
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Map<String, Object> properties = new HashMap<String, Object>(); |
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properties.put("name", rs.getString("agencyName")); |
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properties.put("type", rs.getString("agency")); |
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agencyID = inserter.createNode(properties, agencyLabel); |
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agencyIDs.put(rs.getString("agencyName"), agencyID); |
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if (agencyID % 10 == 0) { |
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System.out.println("Agency " + agencyID); |
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} |
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} |
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agencyID = agencyIDs.get(rs.getString("agencyName")); |
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// inject some data |
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if (supplierIDs.get(rs.getString("supplierID")) == null) { |
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Map<String, Object> properties = new HashMap<String, Object>(); |
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properties.put("name", rs.getString("supplierName")); |
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properties.put("type", rs.getString("supplier")); |
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supplierID = inserter.createNode(properties, supplierLabel); |
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supplierIDs.put(rs.getString("supplierID"), supplierID); |
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if (supplierID % 1000 == 0) { |
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System.out.println("Supplier " + supplierID); |
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} |
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} |
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supplierID = supplierIDs.get(rs.getString("supplierID")); |
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// To set properties on the relationship, use a properties map |
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// instead of null as the last parameter. |
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Map<String, Object> properties = new HashMap<String, Object>(); |
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properties.put( "value", rs.getDouble("sum")); |
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inserter.createRelationship(agencyID, supplierID, |
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DynamicRelationshipType.withName("PAYS"), properties); |
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inserter.createRelationship(supplierID, agencyID, |
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DynamicRelationshipType.withName("PAID_BY"), properties); |
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} |
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// Close the result set, statement and the connection |
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rs.close(); |
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stmt.close(); |
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conn.close(); |
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} catch (SQLException se) { |
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System.out.println("SQL Exception:"); |
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// Loop through the SQL Exceptions |
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while (se != null) { |
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System.out.println("State : " + se.getSQLState()); |
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System.out.println("Message: " + se.getMessage()); |
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System.out.println("Error : " + se.getErrorCode()); |
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se = se.getNextException(); |
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} |
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} |
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//make the changes visible for reading, use this sparsely, requires IO! |
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// names.flush(); |
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// Make sure to shut down the index provider |
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// indexProvider.shutdown(); |
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inserter.shutdown(); |
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} |
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} |
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import java.io.ObjectInputStream.GetField; |
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import java.math.BigInteger; |
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import java.security.MessageDigest; |
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import java.security.NoSuchAlgorithmException; |
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import java.sql.Connection; |
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import java.sql.DriverManager; |
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import java.sql.ResultSet; |
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import java.sql.SQLException; |
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import java.sql.SQLWarning; |
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import java.sql.Statement; |
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import java.util.HashMap; |
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import java.util.Map; |
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import org.neo4j.graphdb.DynamicRelationshipType; |
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import org.neo4j.graphdb.GraphDatabaseService; |
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import org.neo4j.graphdb.Node; |
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import org.neo4j.graphdb.index.BatchInserterIndex; |
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import org.neo4j.graphdb.index.BatchInserterIndexProvider; |
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import org.neo4j.helpers.collection.MapUtil; |
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import org.neo4j.kernel.impl.batchinsert.BatchInserter; |
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import org.neo4j.kernel.impl.batchinsert.BatchInserterImpl; |
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import org.neo4j.index.impl.lucene.*; |
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public class Importer { |
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public static void main(String[] argv) { |
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BatchInserter inserter = new BatchInserterImpl("target/neo4jdb-batchinsert"); |
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BatchInserterIndexProvider indexProvider = new LuceneBatchInserterIndexProvider(inserter); |
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BatchInserterIndex labels = indexProvider.nodeIndex("labels", MapUtil.stringMap("type", "exact")); |
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labels.setCacheCapacity("Label", 100000); |
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System.out.println("-------- PostgreSQL " |
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+ "JDBC Connection Testing ------------"); |
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try { |
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Class.forName("org.postgresql.Driver"); |
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} catch (ClassNotFoundException e) { |
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System.out.println("Where is your PostgreSQL JDBC Driver? " |
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+ "Include in your library path!"); |
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e.printStackTrace(); |
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} |
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System.out.println("PostgreSQL JDBC Driver Registered!"); |
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Connection conn = null; |
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try { |
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conn = DriverManager.getConnection( |
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"jdbc:postgresql://127.0.0.1:5432/contractDashboard", |
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"postgres", "snmc"); |
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} catch (SQLException e) { |
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System.out.println("Connection Failed! Check output console"); |
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e.printStackTrace(); |
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} |
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if (conn != null) { |
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System.out.println("You made it, take control your database now!"); |
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} else { |
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System.out.println("Failed to make connection!"); |
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} |
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try { |
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// Print all warnings |
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for (SQLWarning warn = conn.getWarnings(); warn != null; warn = warn.getNextWarning()) { |
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System.out.println("SQL Warning:"); |
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System.out.println("State : " + warn.getSQLState()); |
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System.out.println("Message: " + warn.getMessage()); |
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System.out.println("Error : " + warn.getErrorCode()); |
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} |
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// Get a statement from the connection |
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Statement stmt = conn.createStatement(); |
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// Execute the query |
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ResultSet rs = stmt.executeQuery("SELECT contractnotice.\"agencyName\", " |
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+ " contractnotice.\"supplierABN\",contractnotice.\"supplierName\",sum(value) as sum " |
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+ "FROM public.contractnotice where contractnotice.\"agencyName\" != 'Department of Defence'" |
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+ " AND contractnotice.\"agencyName\" != 'Defence Materiel Organisation' GROUP BY contractnotice.\"agencyName\", " |
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+ " contractnotice.\"supplierABN\",contractnotice.\"supplierName\""); |
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String previousAgency = ""; |
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GraphDatabaseService gds = inserter.getGraphDbService(); |
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HashMap<String, Long> supplierIDs = new HashMap<String, Long>(); |
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HashMap<String, Long> agencyIDs = new HashMap<String, Long>(); |
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// Loop through the result set |
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while (rs.next()) { |
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long supplierID, agencyID; |
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String supplierKey; |
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if (agencyIDs.get(rs.getString("agencyName")) == null) { |
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Node myNode = gds.createNode(); |
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myNode.setProperty("Label", rs.getString("agencyName")); |
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myNode.setProperty("type", "agency"); |
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agencyIDs.put(rs.getString("agencyName"), myNode.getId()); |
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if (myNode.getId() % 100 == 0) { |
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System.out.println("Agency " + myNode.getId()); |
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} |
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} |
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agencyID = agencyIDs.get(rs.getString("agencyName")); |
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if (rs.getString("supplierABN") != "0" && rs.getString("supplierABN") != "") { |
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supplierKey = rs.getString("supplierABN"); |
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} else { |
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supplierKey = rs.getString("supplierName"); |
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} |
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// inject some data |
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if (supplierIDs.get(supplierKey) == null) { |
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Node myNode = gds.createNode(); |
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myNode.setProperty("Label", rs.getString("supplierName")); |
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myNode.setProperty("type", "supplier"); |
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supplierIDs.put(supplierKey, myNode.getId()); |
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if (myNode.getId() % 1000 == 0) { |
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System.out.println("Supplier " + myNode.getId()); |
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} |
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} |
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supplierID = supplierIDs.get(supplierKey); |
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long rel = inserter.createRelationship(agencyID, supplierID, |
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DynamicRelationshipType.withName("KNOWS"), null); |
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inserter.setRelationshipProperty(rel, "Weight", rs.getDouble("sum")); |
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} |
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// Close the result set, statement and the connection |
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rs.close(); |
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stmt.close(); |
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conn.close(); |
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} catch (SQLException se) { |
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System.out.println("SQL Exception:"); |
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// Loop through the SQL Exceptions |
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while (se != null) { |
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System.out.println("State : " + se.getSQLState()); |
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System.out.println("Message: " + se.getMessage()); |
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System.out.println("Error : " + se.getErrorCode()); |
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se = se.getNextException(); |
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} |
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} |
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//make the changes visible for reading, use this sparsely, requires IO! |
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labels.flush(); |
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// Make sure to shut down the index provider |
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indexProvider.shutdown(); |
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inserter.shutdown(); |
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} |
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} |
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