package org.hccp.pdf;

import java.util.Vector;
/**
 *
 * The body of a PDF file consists of a sequence of indirect 
 * objects representing the contents of a document.
 *
 * @see IndirectObject
 * @see DocumentObject
 **/
public class Body implements DocumentObject {

    private Vector bodyObjects;

    /**
     *
     * This method is used to add a {@link DocumentObject} to this
     * Body. 
     *
     * @see DocumentObject
     *
     *
     **/
    public void addObject(DocumentObject documentobject) {
        bodyObjects.addElement(documentobject);
    }

    /**
     * This method cycles through it's collected objects, calling getValue() on each,
     * returning the ASCII encoded PDF representation of the object and child objects.
     **/
    public String getValue() {
        StringBuffer sb = new StringBuffer();
        for(int i = 0; i < bodyObjects.size(); i++) {

			sb.append(((DocumentObject)bodyObjects.elementAt(i)).getValue());
		}

        return sb.toString();
    }
    
    /**
     *
     * This method returns the total size as a {@link Numeric}, in bytes, of this 
     * Body's collected objects,
     *
     * @return a {@link Numeric} representation of the Body size
     *
     *
     **/
    public Numeric getSize() {
        int i = 0;
        for(int j = 0; j < bodyObjects.size(); j++) {
            i += ((DocumentObject)bodyObjects.elementAt(j)).getValue().getBytes().length;
	}
        return new Numeric(i);
    }


    /**
     *
     * This method returns a Vector of this Body's collected objects.
     *
     * @return a Vector of this Body's collected objects
     *
     * @see DocumentObject
     *
     **/

    public Vector getBodyObjects() {
        return bodyObjects;
    }

    public Body() {
        bodyObjects = new Vector();
    }

}