com.alliander.osgp.webdevicesimulator.domain.entities.OslpLogItem.java Source code

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Here is the source code for com.alliander.osgp.webdevicesimulator.domain.entities.OslpLogItem.java

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/**
 * Copyright 2015 Smart Society Services B.V.
 *
 * 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
 */
package com.alliander.osgp.webdevicesimulator.domain.entities;

import javax.persistence.Column;
import javax.persistence.Entity;

import org.apache.commons.codec.binary.Base64;
import org.apache.commons.lang3.StringUtils;

import com.alliander.osgp.shared.domain.entities.AbstractEntity;
import com.google.protobuf.Message;

@Entity
public class OslpLogItem extends AbstractEntity {
    /**
     * 
     */
    private static final long serialVersionUID = -7937120696814867266L;

    private static final int MAX_MESSAGE_LENGTH = 8000;

    private boolean incoming;

    private String deviceUid;

    @Column(length = MAX_MESSAGE_LENGTH)
    private String encodedMessage;

    @Column(length = MAX_MESSAGE_LENGTH)
    private String decodedMessage;

    private String deviceIdentification;

    @SuppressWarnings("unused")
    private OslpLogItem() {
        // Empty constructor for Hibernate.
    }

    public OslpLogItem(final byte[] deviceUid, final String deviceIdentification, final boolean incoming,
            final Message message) {
        this.deviceUid = Base64.encodeBase64String(deviceUid);
        this.deviceIdentification = deviceIdentification;
        this.incoming = incoming;

        // Truncate the logitems to length
        this.encodedMessage = StringUtils.substring(OslpLogItem.bytesToCArray(message.toByteArray()), 0,
                MAX_MESSAGE_LENGTH);
        this.decodedMessage = StringUtils.substring(message.toString(), 0, MAX_MESSAGE_LENGTH);
    }

    public boolean isIncoming() {
        return this.incoming;
    }

    public String getDeviceUid() {
        return this.deviceUid;
    }

    public String getEncodedMessage() {
        return this.encodedMessage;
    }

    public String getDecodedMessage() {
        return this.decodedMessage;
    }

    public String getDeviceIdentification() {
        return this.deviceIdentification;
    }

    private static String bytesToCArray(final byte[] bytes) {
        String s = javax.xml.bind.DatatypeConverter.printHexBinary(bytes);

        // Split every two chars with ', ' to create a C array.
        s = s.replaceAll("(.{2})", ", 0x$1");

        // Remove the leading comma.
        s = s.substring(2);

        return s;
    }
}