PluggableTaskParameterDTO.java

/*
 jBilling - The Enterprise Open Source Billing System
 Copyright (C) 2003-2011 Enterprise jBilling Software Ltd. and Emiliano Conde

 This file is part of jbilling.

 jbilling is free software: you can redistribute it and/or modify
 it under the terms of the GNU Affero General Public License as published by
 the Free Software Foundation, either version 3 of the License, or
 (at your option) any later version.

 jbilling is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU Affero General Public License for more details.

 You should have received a copy of the GNU Affero General Public License
 along with jbilling.  If not, see <http://www.gnu.org/licenses/>.
 */

package com.sapienter.jbilling.server.pluggableTask.admin;

import java.io.Serializable;
import java.math.BigDecimal;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
import javax.persistence.Table;
import javax.persistence.TableGenerator;
import javax.persistence.Transient;
import javax.persistence.Version;

import org.apache.log4j.Logger;
import org.hibernate.annotations.Cache;
import org.hibernate.annotations.CacheConcurrencyStrategy;

@Entity
@TableGenerator(
        name="pluggable_task_parameter_GEN",
        table="jbilling_seqs",
        pkColumnName = "name",
        valueColumnName = "next_id",
        pkColumnValue="pluggable_task_parameter",
        allocationSize = 100
        )
@Table(name = "pluggable_task_parameter")
@Cache(usage = CacheConcurrencyStrategy.NONSTRICT_READ_WRITE)
public class PluggableTaskParameterDTO implements Serializable {

    private static final Logger LOG = Logger.getLogger(PluggableTaskParameterDTO.class);
    
    public static final int INT = 1;
    public static final int STR = 2;
    public static final int FLO = 3;

    // MAPPED COLUMS
    
    @Id @GeneratedValue(strategy=GenerationType.TABLE, generator="pluggable_task_parameter_GEN")
    private Integer id;
    
    @Column(name = "name")
    private String name;

    @Column(name = "int_value")
    private Integer intValue;
 
    @Column(name = "str_value")
    private String strValue;
    
    @Column(name = "float_value")
    private BigDecimal floatValue;

    @ManyToOne
    @JoinColumn(name="task_id")
    private PluggableTaskDTO task;
    
    @Version
    @Column(name="OPTLOCK")
    private Integer versionNum;


    // INTERNAL FIELDS
    @Transient
    private Integer type = null; // this indicates the data type of the value
    @Transient
    private String value = null;

    public BigDecimal getFloatValue() {
        return floatValue;
    }

    public void setFloatValue(BigDecimal floatValue) {
        this.floatValue = floatValue;
    }

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public Integer getIntValue() {
        return intValue;
    }

    public void setIntValue(Integer intValue) {
        this.intValue = intValue;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getStrValue() {
        return strValue;
    }

    public void setStrValue(String strValue) {
        this.strValue = strValue;
    }

    public PluggableTaskDTO getTask() {
        return task;
    }

    public void setTask(PluggableTaskDTO task) {
        this.task = task;
    }

    public String toString() {
      StringBuffer str = new StringBuffer("{");
        str.append("-" + this.getClass().getName() + "-");

      str.append("id=" + getId() + " " + "name=" + getName() + " " + "intValue=" + 
                getIntValue() + " " + "strValue=" + getStrValue() + " " + "floatValue=" +
                getFloatValue());
      str.append('}');

      return(str.toString());
     }
    
    public void populateValue() {
        if (getIntValue() != null) {
            type = new Integer(INT);
            value = String.valueOf(getIntValue());
        } else if (getStrValue() != null) {
            type = new Integer(STR);
            value = getStrValue();
        } else if (getFloatValue() != null) {
            type = new Integer(FLO);
            value = String.valueOf(getFloatValue());
        } else {
            // the value of this parameter is null
            // we default the type to String
            type = new Integer(STR);
        }
    }
    
    public void expandValue() throws NumberFormatException {
        if (type == null) return;
        
        switch(type.intValue()) {
        case INT:
            setIntValue(Integer.valueOf(value));
            setStrValue(null);
            setFloatValue(null);  
        break;
        case STR:
            setIntValue(null);
            setStrValue(value);
            setFloatValue(null);  
        break;
        case FLO:
            setIntValue(null);
            setStrValue(null);
            setFloatValue(new BigDecimal(value));  
        break;
        }
    }

    public Integer getType() {
        return type;
    }

    public String getValue() {
    	if (value == null) {
    		populateValue();
    	}
        return value;
    }
    public void setValue(String value) {
        this.value = value;
    }

    public void setVersionNum(Integer versionNum) {
        this.versionNum = versionNum;
    }

    public Integer getVersionNum() {
        return versionNum;
    }
    
}