// Path: src/main/java/com/github/pgasync/io/IO.java
// public class IO {
// 
//     public static String getCString(ByteBuffer buffer, Charset charset) {
//         ByteArrayOutputStream readBuffer = new ByteArrayOutputStream(255);
//         for (int c = buffer.get(); c != 0; c = buffer.get()) {
//             readBuffer.write(c);
//         }
//         return new String(readBuffer.toByteArray(), charset);
//     }
// 
//     public static void putCString(ByteBuffer buffer, String value, Charset charset) {
//         if (!value.isEmpty()) {
//             buffer.put(value.getBytes(charset));
//         }
//         buffer.put((byte) 0);
//     }
// 
// }
// 
// Path: src/main/java/com/github/pgasync/message/frontend/Bind.java
// public class Bind implements ExtendedQueryMessage {
// 
//     private final String sname;
//     private final byte[][] params;
// 
//     public Bind(String sname, byte[][] params) {
//         this.sname = sname;
//         this.params = params;
//     }
// 
//     public String getSname() {
//         return sname;
//     }
// 
//     public byte[][] getParams() {
//         return params;
//     }
// }


import com.github.pgasync.io.IO;
import com.github.pgasync.message.frontend.Bind;
import java.nio.ByteBuffer;
import java.nio.charset.Charset;
/*
 * 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 com.github.pgasync.io.frontend;



/**
 * See <a href="https://www.postgresql.org/docs/11/protocol-message-formats.html">Postgres message formats</a>
 *
 * <pre>
 * Bind (F)
 *   Byte1('B')
 *       Identifies the message as a Bind command.
 *
 *   Int32
 *       Length of message contents in bytes, including self.
 *
 *   String
 *       The name of the destination portal (an empty string selects the unnamed portal).
 *
 *   String
 *       The name of the source prepared statement (an empty string selects the unnamed prepared statement).
 *
 *   Int16
 *       The number of parameter format codes that follow (denoted C below). This can be zero to indicate that there are no parameters or that the parameters all use the default format (text); or one, in which case the specified format code is applied to all parameters; or it can equal the actual number of parameters.
 *
 *   Int16[C]
 *       The parameter format codes. Each must presently be zero (text) or one (binary).
 *
 *   Int16
 *       The number of parameter values that follow (possibly zero). This must match the number of parameters needed by the query.
 *
 *   Next, the following pair of fields appear for each parameter:
 *
 *   Int32
 *       The length of the parameter value, in bytes (this count does not include itself). Can be zero. As a special case, -1 indicates a NULL parameter value. No value bytes follow in the NULL case.
 *
 *   Byten
 *       The value of the parameter, in the format indicated by the associated format code. n is the above length.
 *
 *   After the last parameter, the following fields appear:
 *
 *   Int16
 *       The number of result-column format codes that follow (denoted R below). This can be zero to indicate that there are no result columns or that the result columns should all use the default format (text); or one, in which case the specified format code is applied to all result columns (if any); or it can equal the actual number of result columns of the query.
 *
 *   Int16[R]
 *       The result-column format codes. Each must presently be zero (text) or one (binary).
 * </pre>
 *
 * @author Antti Laisi
 */
public class BindEncoder extends ExtendedQueryEncoder<Bind> {

    @Override
    public Class<Bind> getMessageType() {
        return Bind.class;
    }

    @Override
    protected byte getMessageId() {
        return (byte) 'B';
    }

    @Override
    public void writeBody(Bind msg, ByteBuffer buffer, Charset encoding) {
// Path: src/main/java/com/github/pgasync/io/IO.java
// public class IO {
// 
//     public static String getCString(ByteBuffer buffer, Charset charset) {
//         ByteArrayOutputStream readBuffer = new ByteArrayOutputStream(255);
//         for (int c = buffer.get(); c != 0; c = buffer.get()) {
//             readBuffer.write(c);
//         }
//         return new String(readBuffer.toByteArray(), charset);
//     }
// 
//     public static void putCString(ByteBuffer buffer, String value, Charset charset) {
//         if (!value.isEmpty()) {
//             buffer.put(value.getBytes(charset));
//         }
//         buffer.put((byte) 0);
//     }
// 
// }
// 
// Path: src/main/java/com/github/pgasync/message/frontend/Bind.java
// public class Bind implements ExtendedQueryMessage {
// 
//     private final String sname;
//     private final byte[][] params;
// 
//     public Bind(String sname, byte[][] params) {
//         this.sname = sname;
//         this.params = params;
//     }
// 
//     public String getSname() {
//         return sname;
//     }
// 
//     public byte[][] getParams() {
//         return params;
//     }
// }


// Path: src/main/java/com/github/pgasync/io/frontend/BindEncoder.java
import com.github.pgasync.io.IO;
import com.github.pgasync.message.frontend.Bind;
import java.nio.ByteBuffer;
import java.nio.charset.Charset;

/*
 * 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 com.github.pgasync.io.frontend;



/**
 * See <a href="https://www.postgresql.org/docs/11/protocol-message-formats.html">Postgres message formats</a>
 *
 * <pre>
 * Bind (F)
 *   Byte1('B')
 *       Identifies the message as a Bind command.
 *
 *   Int32
 *       Length of message contents in bytes, including self.
 *
 *   String
 *       The name of the destination portal (an empty string selects the unnamed portal).
 *
 *   String
 *       The name of the source prepared statement (an empty string selects the unnamed prepared statement).
 *
 *   Int16
 *       The number of parameter format codes that follow (denoted C below). This can be zero to indicate that there are no parameters or that the parameters all use the default format (text); or one, in which case the specified format code is applied to all parameters; or it can equal the actual number of parameters.
 *
 *   Int16[C]
 *       The parameter format codes. Each must presently be zero (text) or one (binary).
 *
 *   Int16
 *       The number of parameter values that follow (possibly zero). This must match the number of parameters needed by the query.
 *
 *   Next, the following pair of fields appear for each parameter:
 *
 *   Int32
 *       The length of the parameter value, in bytes (this count does not include itself). Can be zero. As a special case, -1 indicates a NULL parameter value. No value bytes follow in the NULL case.
 *
 *   Byten
 *       The value of the parameter, in the format indicated by the associated format code. n is the above length.
 *
 *   After the last parameter, the following fields appear:
 *
 *   Int16
 *       The number of result-column format codes that follow (denoted R below). This can be zero to indicate that there are no result columns or that the result columns should all use the default format (text); or one, in which case the specified format code is applied to all result columns (if any); or it can equal the actual number of result columns of the query.
 *
 *   Int16[R]
 *       The result-column format codes. Each must presently be zero (text) or one (binary).
 * </pre>
 *
 * @author Antti Laisi
 */
public class BindEncoder extends ExtendedQueryEncoder<Bind> {

    @Override
    public Class<Bind> getMessageType() {
        return Bind.class;
    }

    @Override
    protected byte getMessageId() {
        return (byte) 'B';
    }

    @Override
    public void writeBody(Bind msg, ByteBuffer buffer, Charset encoding) {
        IO.putCString(buffer, "", encoding); // portal