Global.java

/*
 * This class was automatically generated with 
 * <a href="http://www.castor.org">Castor 1.1.2.1</a>, using an XML
 * Schema.
 * $Id$
 */

package org.opennms.netmgt.correlation.drools.config;

  //---------------------------------/
 //- Imported classes and packages -/
//---------------------------------/

import java.beans.PropertyEditor;
import java.io.IOException;
import java.io.Reader;
import java.io.Serializable;
import java.io.Writer;

import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlAttribute;
import javax.xml.bind.annotation.XmlRootElement;
import javax.xml.bind.annotation.XmlTransient;

import org.exolab.castor.xml.MarshalException;
import org.exolab.castor.xml.Marshaller;
import org.exolab.castor.xml.Unmarshaller;
import org.exolab.castor.xml.ValidationException;
import org.exolab.castor.xml.Validator;
import org.springframework.beans.PropertyEditorRegistrySupport;
import org.springframework.context.ApplicationContext;
import org.xml.sax.ContentHandler;


/**
 * Class Global.
 * 
 * @version $Revision$ $Date$
 */

@SuppressWarnings("all")
@XmlRootElement(name="global")
@XmlAccessorType(XmlAccessType.FIELD)
public class Global implements Serializable {
	
	private static class SimplePropertyEditorRegistry extends PropertyEditorRegistrySupport {
		public SimplePropertyEditorRegistry() {
			registerDefaultEditors();
		}
		
	}

	@XmlTransient
	private PropertyEditorRegistrySupport m_editorRegistry = new SimplePropertyEditorRegistry();

      //--------------------------/
     //- Class/Member Variables -/
    //--------------------------/

    /**
     * This is the name as it is defined in the rules file
     */
	@XmlAttribute(name="name")
    private String _name;

    /**
     * This is the type that is defined in the rules file. 
     *  If a value is given then a propertyEditor for this type 
     *  is used to convert the string value to a value of the type
     *  defined here and the result is set a the global in the
     * rules
     *  file. If a value is not given the the 'ref' must be
     * specified
     *  and the app context associated with this ruleSet is used to
     *  look up the bean using the ref attribute and it must be of
     * the
     *  type specified in type.
     *  
     */
	@XmlAttribute(name="type")
    private String _type;

    /**
     * Field _value.
     */
	@XmlAttribute(name="value")
    private String _value;

    /**
     * Field _ref.
     */
	@XmlAttribute(name="ref")
    private String _ref;


      //----------------/
     //- Constructors -/
    //----------------/

    public Global() {

    }


      //-----------/
     //- Methods -/
    //-----------/

    /**
     * Returns the value of field 'name'. The field 'name' has the
     * following description: This is the name as it is defined in
     * the rules file
     * 
     * @return the value of field 'Name'.
     */
    public String getName(
    ) {
        return this._name;
    }

    /**
     * Returns the value of field 'ref'.
     * 
     * @return the value of field 'Ref'.
     */
    public String getRef(
    ) {
        return this._ref;
    }

    /**
     * Returns the value of field 'type'. The field 'type' has the
     * following description: This is the type that is defined in
     * the rules file. 
     *  If a value is given then a propertyEditor for this type 
     *  is used to convert the string value to a value of the type
     *  defined here and the result is set a the global in the
     * rules
     *  file. If a value is not given the the 'ref' must be
     * specified
     *  and the app context associated with this ruleSet is used to
     *  look up the bean using the ref attribute and it must be of
     * the
     *  type specified in type.
     *  
     * 
     * @return the value of field 'Type'.
     */
    public String getType(
    ) {
        return this._type;
    }

    /**
     * Returns the value of field 'value'.
     * 
     * @return the value of field 'Value'.
     */
    public String getValue(
    ) {
        return this._value;
    }

    /**
     * Method isValid.
     * 
     * @return true if this object is valid according to the schema
     */
    public boolean isValid(
    ) {
        try {
            validate();
        } catch (ValidationException vex) {
            return false;
        }
        return true;
    }

    /**
     * 
     * 
     * @param out
     * @throws MarshalException if object is
     * null or if any SAXException is thrown during marshaling
     * @throws ValidationException if this
     * object is an invalid instance according to the schema
     */
    public void marshal(
            final Writer out)
    throws MarshalException, ValidationException {
        Marshaller.marshal(this, out);
    }

    /**
     * 
     * 
     * @param handler
     * @throws IOException if an IOException occurs during
     * marshaling
     * @throws ValidationException if this
     * object is an invalid instance according to the schema
     * @throws MarshalException if object is
     * null or if any SAXException is thrown during marshaling
     */
    public void marshal(
            final ContentHandler handler)
    throws IOException, MarshalException, ValidationException {
        Marshaller.marshal(this, handler);
    }

    /**
     * Sets the value of field 'name'. The field 'name' has the
     * following description: This is the name as it is defined in
     * the rules file
     * 
     * @param name the value of field 'name'.
     */
    public void setName(
            final String name) {
        this._name = name;
    }

    /**
     * Sets the value of field 'ref'.
     * 
     * @param ref the value of field 'ref'.
     */
    public void setRef(
            final String ref) {
        this._ref = ref;
    }

    /**
     * Sets the value of field 'type'. The field 'type' has the
     * following description: This is the type that is defined in
     * the rules file. 
     *  If a value is given then a propertyEditor for this type 
     *  is used to convert the string value to a value of the type
     *  defined here and the result is set a the global in the
     * rules
     *  file. If a value is not given the the 'ref' must be
     * specified
     *  and the app context associated with this ruleSet is used to
     *  look up the bean using the ref attribute and it must be of
     * the
     *  type specified in type.
     *  
     * 
     * @param type the value of field 'type'.
     */
    public void setType(
            final String type) {
        this._type = type;
    }

    /**
     * Sets the value of field 'value'.
     * 
     * @param value the value of field 'value'.
     */
    public void setValue(
            final String value) {
        this._value = value;
    }

    /**
     * Method unmarshal.
     * 
     * @param reader
     * @throws MarshalException if object is
     * null or if any SAXException is thrown during marshaling
     * @throws ValidationException if this
     * object is an invalid instance according to the schema
     * @return the unmarshaled
     * Global
     */
    public static Global unmarshal(
            final Reader reader)
    throws MarshalException, ValidationException {
        return (Global) Unmarshaller.unmarshal(Global.class, reader);
    }

    /**
     * 
     * 
     * @throws ValidationException if this
     * object is an invalid instance according to the schema
     */
    public void validate(
    )
    throws ValidationException {
        Validator validator = new Validator();
        validator.validate(this);
    }


	@Override
	public int hashCode() {
		final int prime = 31;
		int result = 1;
		result = prime * result + ((_name == null) ? 0 : _name.hashCode());
		result = prime * result + ((_ref == null) ? 0 : _ref.hashCode());
		result = prime * result + ((_type == null) ? 0 : _type.hashCode());
		result = prime * result + ((_value == null) ? 0 : _value.hashCode());
		return result;
	}


	@Override
	public boolean equals(Object obj) {
		if (this == obj)
			return true;
		if (obj == null)
			return false;
		if (getClass() != obj.getClass())
			return false;
		Global other = (Global) obj;
		if (_name == null) {
			if (other._name != null)
				return false;
		} else if (!_name.equals(other._name))
			return false;
		if (_ref == null) {
			if (other._ref != null)
				return false;
		} else if (!_ref.equals(other._ref))
			return false;
		if (_type == null) {
			if (other._type != null)
				return false;
		} else if (!_type.equals(other._type))
			return false;
		if (_value == null) {
			if (other._value != null)
				return false;
		} else if (!_value.equals(other._value))
			return false;
		return true;
	}


	public <T> T convertStringTo(String value, Class<T> typeClass) {
		if (typeClass == String.class) {
			return typeClass.cast(value);
		} else {
			try {
				final PropertyEditor editor = getDefaultEditor(typeClass);
				editor.setAsText(value);
				return typeClass.cast(editor.getValue());
			} catch (Exception e) {
				throw new IllegalArgumentException("Unable to find a property editor for " + typeClass);
			}
		}
	}


	public Class<?> getTypeClass() {
		return getType() == null ? Object.class : convertStringTo(getType(), Class.class);
	}


	public Object getValueAsType(Class<?> typeClass) {
		return getValue() == null ? null : convertStringTo(getValue(), typeClass);
	}


	public Object constructValue(final ApplicationContext context) {
		Class<?> typeClass = getTypeClass();
	
		if (getRef() != null) {
			return context.getBean(getRef(), typeClass);
		}
	
		if (getValue() != null){
			return getValueAsType(typeClass);
		}
	
		throw new IllegalArgumentException("One of either the value or the ref must be specified");
	}
    
    
	private PropertyEditor getDefaultEditor(Class<?> clazz) {
		return m_editorRegistry.getDefaultEditor(clazz);
	}
}