org.postgresql.core.v3.CopyOperationImpl Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of jdbc-yugabytedb Show documentation
Show all versions of jdbc-yugabytedb Show documentation
Java JDBC 4.2 (JRE 8+) driver for YugaByte SQL database
The newest version!
/*
* Copyright (c) 2009, PostgreSQL Global Development Group
* See the LICENSE file in the project root for more information.
*/
package org.postgresql.core.v3;
import static org.postgresql.util.internal.Nullness.castNonNull;
import org.postgresql.copy.CopyOperation;
import org.postgresql.util.GT;
import org.postgresql.util.PSQLException;
import org.postgresql.util.PSQLState;
import org.checkerframework.checker.nullness.qual.Nullable;
import java.sql.SQLException;
public abstract class CopyOperationImpl implements CopyOperation {
@Nullable QueryExecutorImpl queryExecutor;
int rowFormat;
int @Nullable [] fieldFormats;
long handledRowCount = -1;
void init(QueryExecutorImpl q, int fmt, int[] fmts) {
queryExecutor = q;
rowFormat = fmt;
fieldFormats = fmts;
}
protected QueryExecutorImpl getQueryExecutor() {
return castNonNull(queryExecutor);
}
@Override
public void cancelCopy() throws SQLException {
castNonNull(queryExecutor).cancelCopy(this);
}
@Override
public int getFieldCount() {
return castNonNull(fieldFormats).length;
}
@Override
public int getFieldFormat(int field) {
return castNonNull(fieldFormats)[field];
}
@Override
public int getFormat() {
return rowFormat;
}
@Override
public boolean isActive() {
return castNonNull(queryExecutor).hasLockOn(this);
}
public void handleCommandStatus(String status) throws PSQLException {
if (status.startsWith("COPY")) {
int i = status.lastIndexOf(' ');
handledRowCount = i > 3 ? Long.parseLong(status.substring(i + 1)) : -1;
} else {
throw new PSQLException(GT.tr("CommandComplete expected COPY but got: " + status),
PSQLState.COMMUNICATION_ERROR);
}
}
/**
* Consume received copy data.
*
* @param data data that was receive by copy protocol
* @throws PSQLException if some internal problem occurs
*/
protected abstract void handleCopydata(byte[] data) throws PSQLException;
@Override
public long getHandledRowCount() {
return handledRowCount;
}
}
© 2015 - 2024 Weber Informatics LLC | Privacy Policy