/* Created on 23.11.2004
 *
 * TODO To change the template for this generated file go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
package net.sourceforge.phpeclipse.xdebug.php.model;

import java.util.Arrays;
import java.util.Iterator;
import java.util.Vector;
import net.sourceforge.phpeclipse.xdebug.core.PHPDebugUtils;

import org.eclipse.debug.core.DebugException;
import org.eclipse.debug.core.model.IValue;
import org.eclipse.debug.core.model.IVariable;
import org.w3c.dom.Node;

/**
 * @author Axel
 *
 * TODO To change the template for this generated type comment go to
 * Window - Preferences - Java - Code Style - Code Templates
 */

public /*abstract*/ class XDebugAbstractValue  extends XDebugElement implements IValue {
	private String 		fValueString;
	private String 		fTypeName;
	private boolean 	fhasChanged;
	protected String 	rowValue;
	private boolean 	fSorted;
	private Vector 		fVariables; 							// The children of this variable (other variables) if any

	public XDebugAbstractValue(XDebugStackFrame frame, Node value) throws DebugException  {
		super(frame == null ? null : (XDebugTarget)frame.getDebugTarget());

		fTypeName     = PHPDebugUtils.getAttributeValue(value, "type");

		fVariables    = new Vector(); 		     				// Create an empty vector
		fValueString  = "";
		rowValue      = "";
		fSorted       = false;

		try {
			rowValue = value.getFirstChild().getNodeValue();
		} catch (NullPointerException e) {
			rowValue = "";
		}
	}

	public boolean hasChanged() {
		return fhasChanged;
	}

	public void setChanged(boolean changed) {
		fhasChanged = changed;
	}

	/**
	 *
	 * @param item
	 */
	public Vector addVariable(Vector item) {
		if (item != null) { 										// If there is something we want to add
			fVariables.addAll(item);
			fSorted = false;
		}

		return this.fVariables;
	}

	/**
	 *
	 * @param parent
	 */
	public void setParent(XDebugVariable parent) {
		if (!fVariables.isEmpty()) { 								// If we have child variables
			Iterator iter = fVariables.iterator(); 					// Create an iterator for the children

			while (iter.hasNext()) { 								// As long as we have children
				((XDebugVariable) iter.next()).setParent(parent); 	// Set all child's parent
			}
		}
	}

	/* (non-Javadoc)
	 * @see org.eclipse.debug.core.model.IValue#getReferenceTypeName()
	 */
	public String getReferenceTypeName() throws DebugException {
		return fTypeName;
	}

	/* (non-Javadoc)
	 * @see org.eclipse.debug.core.model.IValue#getValueString()
	 */
	public String getValueString() throws DebugException {
		return fValueString;
	}

	/* (non-Javadoc)
	 * @see org.eclipse.debug.core.model.IValue#isAllocated()
	 */
	public boolean isAllocated() throws DebugException {
		return true;
	}

	/* (non-Javadoc)
	 * @see org.eclipse.debug.core.model.IValue#getVariables()
	 */
	public IVariable[] getVariables() throws DebugException {
		return (XDebugVariable[]) getChildVariables().toArray(
				new XDebugVariable[fVariables.size()]);
	}

	/**
	 *
	 */
	public Vector getChildVariables() {
		return fVariables;
	}

	/* (non-Javadoc)
	 * @see org.eclipse.debug.core.model.IValue#hasVariables()
	 */
	public boolean hasVariables() throws DebugException {
		return (fVariables.size() != 0);
	}

	public boolean setValue(String expression) throws DebugException {
		return true;
	};

	protected boolean verifyValue(String expression) {
		return true;
	}

	protected boolean supportsValueModification() {
		return false;
	}

	protected void setValueString(String valueString) {
		fValueString = valueString;
	}

	protected void setChildren(IVariable[] newChildren) {
		fVariables = new Vector (Arrays.asList(newChildren));
	}

    public void setReferenceTypeName (String referenceTypeName) {
        fTypeName = referenceTypeName;
    }
}