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jsmpp » org » jsmpp » PDUReader.java
/*
 * 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 org.jsmpp;

import java.io.DataInputStream;
import java.io.IOException;
import java.io.InputStream;

import org.jsmpp.bean.Command;


/**
 * Reader for SMPP PDU from specified {@link InputStream}.
 * 
 * @author uudashr
 * @version 1.0
 * @since 1.0
 *
 */
public interface PDUReader {

    /**
     * Read the pdu header. If command length to short, we will read the left
     * bytes anyway, and throw {@link InvalidCommandLengthException}
     * 
     * @param in is the input stream of the pdu.
     * @return the header of smpp command.
     * @throws InvalidCommandLengthException if command_length is to short.
     * @throws IOException if an I/O error occurs.
     */
    public Command readPDUHeader(DataInputStream in)
            throws InvalidCommandLengthException, IOException;

    /**
     * Read all smpp pdu (excluding the command header) with specified pdu
     * header.
     * 
     * @param in is input stream of the pdu (the source).
     * @param pduHeader is the pdu header.
     * @return the complete byte of smpp command.
     * @throws IOException if an I/O error occurs.
     */
    public byte[] readPDU(InputStream in, Command pduHeader) throws IOException;

    /**
     * Read all smpp pdu (excluding the command header) with specified pdu
     * header values.
     * 
     * @param in is the input stream of the pdu (the source).
     * @param commandLength is the command length of smpp pdu command.
     * @param commandId is id of smpp command.
     * @param commandStatus is status of smpp command.
     * @param sequenceNumber is sequence number of smpp command.
     * @return the complete byte of smpp command.
     * @throws IOException if an I/O error occurs.
     */
    public byte[] readPDU(InputStream in, int commandLength, int commandId,
            int commandStatus, int sequenceNumber) throws IOException;

}
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