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−package nl.cwi.monetdb.mcl.protocol.oldmapi;
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−
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−import nl.cwi.monetdb.jdbc.MonetConnection;
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−import nl.cwi.monetdb.mcl.connection.mapi.OldMapiSocket;
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−import nl.cwi.monetdb.mcl.protocol.ProtocolException;
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−import nl.cwi.monetdb.mcl.protocol.AbstractProtocol;
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−import nl.cwi.monetdb.mcl.protocol.ServerResponses;
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−import nl.cwi.monetdb.mcl.protocol.StarterHeaders;
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−import nl.cwi.monetdb.mcl.protocol.TableResultHeaders;
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−import nl.cwi.monetdb.mcl.responses.AutoCommitResponse;
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−import nl.cwi.monetdb.mcl.responses.UpdateResponse;
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−import nl.cwi.monetdb.mcl.responses.DataBlockResponse;
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−import nl.cwi.monetdb.mcl.responses.ResultSetResponse;
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−
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−import java.io.IOException;
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−import java.util.Map;
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−
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−/**
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− * Created by ferreira on 11/30/16.
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− */
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−public class OldMapiProtocol extends AbstractProtocol<StringBuilder> {
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−
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−    private static final int STRING_BUILDER_INITIAL_SIZE = 128;
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−
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−    private final OldMapiSocket socket;
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−
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−    final StringBuilder builder;
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−
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−    int currentPointer = 0;
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−
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−    private final StringBuilder tupleLineBuilder;
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−
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−    public OldMapiProtocol(OldMapiSocket socket) {
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−        this.socket = socket;
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−        this.builder = new StringBuilder(STRING_BUILDER_INITIAL_SIZE);
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−        this.tupleLineBuilder = new StringBuilder(STRING_BUILDER_INITIAL_SIZE);
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−    }
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−
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−    public OldMapiSocket getSocket() {
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−        return socket;
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−    }
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−
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−    boolean hasRemaining() {
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−        return this.currentPointer < this.builder.length();
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−    }
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−
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−    @Override
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−    public ServerResponses waitUntilPrompt() throws IOException {
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−        while(this.currentServerResponseHeader != ServerResponses.PROMPT) {
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−            if(this.socket.readLine(this.builder) == 0) {
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−                throw new IOException("Connection to server lost!");
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−            }
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−            this.currentPointer = 0;
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−            this.currentServerResponseHeader = OldMapiServerResponseParser.ParseOldMapiServerResponse(this);
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−            if (this.currentServerResponseHeader == ServerResponses.ERROR) {
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−                this.currentPointer = 1;
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−            }
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−        }
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−        return this.currentServerResponseHeader;
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−    }
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−
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−    @Override
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−    public void fetchNextResponseData() throws IOException { //readLine equivalent
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−        this.socket.readLine(this.builder);
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−        this.currentPointer = 0;
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−        this.currentServerResponseHeader = OldMapiServerResponseParser.ParseOldMapiServerResponse(this);
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−        if (this.currentServerResponseHeader == ServerResponses.ERROR && !this.builder.toString().matches("^![0-9A-Z]{5}!.+")) {
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−            //this.builder.deleteCharAt(0);
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−            this.builder.insert(0, "!22000!");
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−        }
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−        this.currentPointer = 1;
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−    }
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−
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−    @Override
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−    public StringBuilder getCurrentData() {
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−        return this.builder;
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−    }
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−
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−    @Override
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−    public StarterHeaders getNextStarterHeader() {
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−        StarterHeaders res = OldMapiStartOfHeaderParser.GetNextStartHeaderOnOldMapi(this);
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−        this.currentPointer += 2;
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−        return res;
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−    }
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−
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−    @Override
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−    public ResultSetResponse getNextResultSetResponse(MonetConnection con, MonetConnection.ResponseList list, int seqnr)
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−            throws ProtocolException {
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−        int id = OldMapiStartOfHeaderParser.GetNextResponseDataAsInt(this); //The order cannot be switched!!
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−        int tuplecount = OldMapiStartOfHeaderParser.GetNextResponseDataAsInt(this);
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−        int columncount = OldMapiStartOfHeaderParser.GetNextResponseDataAsInt(this);
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−        int rowcount = OldMapiStartOfHeaderParser.GetNextResponseDataAsInt(this);
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−        return new ResultSetResponse(con, list, seqnr, id, rowcount, tuplecount, columncount);
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−    }
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−
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−    @Override
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−    public UpdateResponse getNextUpdateResponse() throws ProtocolException {
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−        int count = OldMapiStartOfHeaderParser.GetNextResponseDataAsInt(this); //The order cannot be switched!!
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−        String lastId = OldMapiStartOfHeaderParser.GetNextResponseDataAsString(this);
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−        return new UpdateResponse(lastId, count);
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−    }
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−
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−    @Override
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−    public AutoCommitResponse getNextAutoCommitResponse() throws ProtocolException {
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−        boolean ac = OldMapiStartOfHeaderParser.GetNextResponseDataAsString(this).equals("t");
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−        return new AutoCommitResponse(ac);
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−    }
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−
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−    @Override
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−    public DataBlockResponse getNextDatablockResponse(Map<Integer, ResultSetResponse> rsresponses)
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−            throws ProtocolException {
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−        int id = OldMapiStartOfHeaderParser.GetNextResponseDataAsInt(this);
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−        int columncount = OldMapiStartOfHeaderParser.GetNextResponseDataAsInt(this);
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−        int rowcount = OldMapiStartOfHeaderParser.GetNextResponseDataAsInt(this);
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−        int offset = OldMapiStartOfHeaderParser.GetNextResponseDataAsInt(this);
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−
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−        ResultSetResponse rs = rsresponses.get(id);
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−        if (rs == null) {
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−            return null;
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−        }
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−        return rs.addDataBlockResponse(offset, rowcount, columncount, this);
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−    }
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−
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−    @Override
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−    public TableResultHeaders getNextTableHeader(Object line, String[] stringValues, int[] intValues)
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−            throws ProtocolException {
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−        return OldMapiTableHeaderParser.GetNextTableHeader((StringBuilder) line, stringValues, intValues);
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−    }
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−
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−    @Override
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−    public int parseTupleLine(int lineNumber, Object line, int[] typesMap, Object[] data, boolean[] nulls)
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−            throws ProtocolException {
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−        return OldMapiTupleLineParser.OldMapiParseTupleLine(lineNumber, (StringBuilder) line,
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−                this.tupleLineBuilder, typesMap, data, nulls);
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−    }
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−
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−    @Override
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−    public String getRemainingStringLine(int startIndex) {
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−        return this.builder.substring(startIndex);
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−    }
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−
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−    @Override
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−    public void writeNextQuery(String prefix, String query, String suffix) throws IOException {
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−        this.socket.writeNextLine(prefix, query, suffix);
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−        this.currentServerResponseHeader = ServerResponses.UNKNOWN; //reset reader state
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−    }
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−}