io.reactiverse.pgclient.impl.PgClientBase.java Source code

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Here is the source code for io.reactiverse.pgclient.impl.PgClientBase.java

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/*
 * Copyright (C) 2017 Julien Viet
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */

package io.reactiverse.pgclient.impl;

import io.reactiverse.pgclient.*;
import io.vertx.core.AsyncResult;
import io.vertx.core.Future;
import io.vertx.core.Handler;

import java.util.List;
import java.util.function.Function;
import java.util.stream.Collector;

public abstract class PgClientBase<C extends PgClient> implements PgClient, CommandScheduler {

    @Override
    public C query(String sql, Handler<AsyncResult<PgRowSet>> handler) {
        return query(sql, false, PgRowSetImpl.FACTORY, PgRowSetImpl.COLLECTOR, handler);
    }

    @Override
    public <R> C query(String sql, Collector<Row, ?, R> collector, Handler<AsyncResult<PgResult<R>>> handler) {
        return query(sql, true, PgResultImpl::new, collector, handler);
    }

    private <R1, R2 extends PgResultBase<R1, R2>, R3 extends PgResult<R1>> C query(String sql, boolean singleton,
            Function<R1, R2> factory, Collector<Row, ?, R1> collector, Handler<AsyncResult<R3>> handler) {
        PgResultBuilder<R1, R2, R3> b = new PgResultBuilder<>(factory, handler);
        schedule(new SimpleQueryCommand<>(sql, singleton, collector, b), b);
        return (C) this;
    }

    @Override
    public C preparedQuery(String sql, Tuple arguments, Handler<AsyncResult<PgRowSet>> handler) {
        return preparedQuery(sql, arguments, false, PgRowSetImpl.FACTORY, PgRowSetImpl.COLLECTOR, handler);
    }

    @Override
    public <R> C preparedQuery(String sql, Tuple arguments, Collector<Row, ?, R> collector,
            Handler<AsyncResult<PgResult<R>>> handler) {
        return preparedQuery(sql, arguments, true, PgResultImpl::new, collector, handler);
    }

    private <R1, R2 extends PgResultBase<R1, R2>, R3 extends PgResult<R1>> C preparedQuery(String sql,
            Tuple arguments, boolean singleton, Function<R1, R2> factory, Collector<Row, ?, R1> collector,
            Handler<AsyncResult<R3>> handler) {
        schedule(new PrepareStatementCommand(sql), cr -> {
            if (cr.succeeded()) {
                PreparedStatement ps = cr.result();
                String msg = ps.prepare((List<Object>) arguments);
                if (msg != null) {
                    handler.handle(Future.failedFuture(msg));
                } else {
                    PgResultBuilder<R1, R2, R3> b = new PgResultBuilder<>(factory, handler);
                    cr.scheduler.schedule(new ExtendedQueryCommand<>(ps, arguments, singleton, collector, b), b);
                }
            } else {
                handler.handle(Future.failedFuture(cr.cause()));
            }
        });
        return (C) this;
    }

    @Override
    public C preparedQuery(String sql, Handler<AsyncResult<PgRowSet>> handler) {
        return preparedQuery(sql, ArrayTuple.EMPTY, handler);
    }

    @Override
    public <R> C preparedQuery(String sql, Collector<Row, ?, R> collector,
            Handler<AsyncResult<PgResult<R>>> handler) {
        return preparedQuery(sql, ArrayTuple.EMPTY, collector, handler);
    }

    @Override
    public C preparedBatch(String sql, List<Tuple> batch, Handler<AsyncResult<PgRowSet>> handler) {
        return preparedBatch(sql, batch, false, PgRowSetImpl.FACTORY, PgRowSetImpl.COLLECTOR, handler);
    }

    @Override
    public <R> C preparedBatch(String sql, List<Tuple> batch, Collector<Row, ?, R> collector,
            Handler<AsyncResult<PgResult<R>>> handler) {
        return preparedBatch(sql, batch, true, PgResultImpl::new, collector, handler);
    }

    private <R1, R2 extends PgResultBase<R1, R2>, R3 extends PgResult<R1>> C preparedBatch(String sql,
            List<Tuple> batch, boolean singleton, Function<R1, R2> factory, Collector<Row, ?, R1> collector,
            Handler<AsyncResult<R3>> handler) {
        schedule(new PrepareStatementCommand(sql), cr -> {
            if (cr.succeeded()) {
                PreparedStatement ps = cr.result();
                for (Tuple args : batch) {
                    String msg = ps.prepare((List<Object>) args);
                    if (msg != null) {
                        handler.handle(Future.failedFuture(msg));
                        return;
                    }
                }
                PgResultBuilder<R1, R2, R3> b = new PgResultBuilder<>(factory, handler);
                cr.scheduler.schedule(new ExtendedBatchQueryCommand<>(ps, batch, singleton, collector, b), b);
            } else {
                handler.handle(Future.failedFuture(cr.cause()));
            }
        });
        return (C) this;
    }
}