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BGP-LS,OSPF-TE,PCEP and RSVP-TE protocol encodings.
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package es.tid.pce.pcep.objects;

import java.util.LinkedList;

import es.tid.pce.pcep.PCEPProtocolViolationException;
import es.tid.pce.pcep.constructs.SwitchEncodingType;

/**
 * Represents a SWITCH-LAYER Object, as defined in http://tools.ietf.org/id/draft-ietf-pce-inter-layer-ext-04.txt
 *  From draft-ietf-pce-inter-layer-ext-04.txt, section  3.2. SWITCH-LAYER Object 
 * The SWITCH-LAYER object is optional on a PCReq message and 
    specifies switching layers in which a path MUST, or MUST NOT, be 
    established. A switching layer is expressed as a switching type and 
    encoding type. The SWITCH-LAYER object MUST NOT be used on a PCReq 
    unless an INTER-LAYER object is also present on the PCReq message. 
     
    The SWITCH-LAYER object is optional on a PCRep message, where it is 
    used with the NO-PATH object in the case of unsuccessful path 
    computation to indicate the set of constraints that could not be 
    satisfied. 
     
    SWITCH-LAYER Object-Class is to be assigned by IANA (recommended 
    value=19) 
     
    SWITCH-LAYER Object-Type is to be assigned by IANA (recommended 
    value=1) 
     
    The format of the SWITCH-LAYER object body is as follows: 
      
      0                   1                   2                   3 
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 
    +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 
    | LSP Enc. Type |Switching Type | Reserved                    |I| 
    +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 
    |                               .                               | 
    //                              .                              // 
    |                               .                               | 
    +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 
    | LSP Enc. Type |Switching Type | Reserved                    |I| 
    +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 
     
    Each row indicates a switching type and encoding type that must or 
    must not be used for specified layer(s) in the computed path.  
     
    The format is based on [RFC3471], and has equivalent semantics. 
     
    LSP Encoding Type (8 bits): see [RFC3471] for a description of 
    parameters. 
     
    Switching Type (8 bits): see [RFC3471] for a description of 
    parameters. 
     
    I flag (1 bit): the I flag indicates whether a layer with the 
    specified switching type and encoding type must or must not be used 
    by the computed path. When the I flag is set (one), the computed 
    path MUST traverse a layer with the specified switching type and 
    encoding type. When the I flag is clear (zero), the computed path 
     
    MUST NOT enter or traverse any layer with the specified switching 
    type and encoding type. 
     
    When a combination of switching type and encoding type is not 
    included in SWITCH-LAYER object, the computed path MAY traverse a 
    layer with that combination of switching type and encoding type. 
     
    A PCC may want to specify only a Switching Type and not an LSP 
    Encoding Type. In this case, the LSP Encoding Type is set to zero. 

 * @author ogondio
 *
 */
public class SwitchLayer extends PCEPObject {
	
	private LinkedList switchLayers;

	public SwitchLayer(){
		this.setObjectClass(ObjectParameters.PCEP_OBJECT_CLASS_SWITCH_LAYER);
		this.setOT(ObjectParameters.PCEP_OBJECT_TYPE_SWITCH_LAYER);
		switchLayers=new LinkedList();
	}

	public SwitchLayer(byte []bytes, int offset) throws MalformedPCEPObjectException{
		super(bytes, offset);
		switchLayers=new LinkedList();
		decode();
	}
	/**
	 * Encode SwitchLayer PCEP Object
	 */
	public void encode() {
		int len=4;//The four bytes of the header
		for (int k=0; k=ObjectLength){
				fin=true;
			}
		}

	}

	public LinkedList getSwitchLayers() {
		return switchLayers;
	}

	public void setSwitchLayers(LinkedList switchLayers) {
		this.switchLayers = switchLayers;
	}

	@Override
	public int hashCode() {
		final int prime = 31;
		int result = super.hashCode();
		result = prime * result
				+ ((switchLayers == null) ? 0 : switchLayers.hashCode());
		return result;
	}

	@Override
	public boolean equals(Object obj) {
		if (this == obj)
			return true;
		if (!super.equals(obj))
			return false;
		if (getClass() != obj.getClass())
			return false;
		SwitchLayer other = (SwitchLayer) obj;
		if (switchLayers == null) {
			if (other.switchLayers != null)
				return false;
		} else if (!switchLayers.equals(other.switchLayers))
			return false;
		return true;
	}
	
	
	

}