/**

 * <copyright>

 * </copyright>

 *

 * $Id$

 */

package com.nokia.sdt.emf.dm.impl;

import com.nokia.sdt.emf.dm.DmPackage;

import com.nokia.sdt.emf.dm.IMacroStringTable;

import java.util.Collection;

import com.nokia.sdt.emf.dm.*;

import com.nokia.cpp.internal.api.utils.core.Check;

import org.eclipse.emf.common.notify.NotificationChain;

import org.eclipse.emf.common.util.EMap;

import org.eclipse.emf.ecore.EClass;

import org.eclipse.emf.ecore.EStructuralFeature;

import org.eclipse.emf.ecore.InternalEObject;

import org.eclipse.emf.ecore.*;

import org.eclipse.emf.ecore.impl.EObjectImpl;

import org.eclipse.emf.ecore.util.EcoreEMap;

import org.eclipse.emf.ecore.util.InternalEList;

import java.util.*;

/**

 * <!-- begin-user-doc -->

 * An implementation of the model object '<em><b>IMacro String Table</b></em>'.

 * <!-- end-user-doc -->

 * <p>

 * The following features are implemented:

 * <ul>

 *   <li>{@link com.nokia.sdt.emf.dm.impl.IMacroStringTableImpl#getStringMacros <em>String Macros</em>}</li>

 * </ul>

 * </p>

 *

 * @generated

 */

public class IMacroStringTableImpl extends EObjectImpl implements IMacroStringTable {

	/**

	 * The cached value of the '{@link #getStringMacros() <em>String Macros</em>}' map.

	 * <!-- begin-user-doc -->

	 * <!-- end-user-doc -->

	 * @see #getStringMacros()

	 * @generated

	 * @ordered

	 */

	protected EMap stringMacros = null;

	private IStringKeyProvider keyProvider;

	private Set<String> userGeneratedKeys;

	/**

	 * <!-- begin-user-doc -->

	 * <!-- end-user-doc -->

	 * @generated

	 */

	protected IMacroStringTableImpl() {

		super();

	}

	/**

	 * <!-- begin-user-doc -->

	 * <!-- end-user-doc -->

	 * @generated

	 */

	protected EClass eStaticClass() {

		return DmPackage.Literals.IMACRO_STRING_TABLE;

	}

	/**

	 * <!-- begin-user-doc -->

	 * <!-- end-user-doc -->

	 * @generated

	 */

	public EMap getStringMacros() {

		if (stringMacros == null) {

			stringMacros = new EcoreEMap(DmPackage.Literals.ESTRING_TO_STRING_MAP_ENTRY, EStringToStringMapEntryImpl.class, this, DmPackage.IMACRO_STRING_TABLE__STRING_MACROS);

		}

		return stringMacros;

	}

	/**

	 * <!-- begin-user-doc -->

	 * <!-- end-user-doc -->

	 * @generated

	 */

	public NotificationChain eInverseRemove(InternalEObject otherEnd, int featureID, NotificationChain msgs) {

		switch (featureID) {

			case DmPackage.IMACRO_STRING_TABLE__STRING_MACROS:

				return ((InternalEList)getStringMacros()).basicRemove(otherEnd, msgs);

		}

		return super.eInverseRemove(otherEnd, featureID, msgs);

	}

	/**

	 * <!-- begin-user-doc -->

	 * <!-- end-user-doc -->

	 * @generated

	 */

	public Object eGet(int featureID, boolean resolve, boolean coreType) {

		switch (featureID) {

			case DmPackage.IMACRO_STRING_TABLE__STRING_MACROS:

				if (coreType) return getStringMacros();

				else return getStringMacros().map();

		}

		return super.eGet(featureID, resolve, coreType);

	}

	/**

	 * <!-- begin-user-doc -->

	 * <!-- end-user-doc -->

	 * @generated

	 */

	public void eSet(int featureID, Object newValue) {

		switch (featureID) {

			case DmPackage.IMACRO_STRING_TABLE__STRING_MACROS:

				((EStructuralFeature.Setting)getStringMacros()).set(newValue);

				return;

		}

		super.eSet(featureID, newValue);

	}

	/**

	 * <!-- begin-user-doc -->

	 * <!-- end-user-doc -->

	 * @generated

	 */

	public void eUnset(int featureID) {

		switch (featureID) {

			case DmPackage.IMACRO_STRING_TABLE__STRING_MACROS:

				getStringMacros().clear();

				return;

		}

		super.eUnset(featureID);

	}

	/**

	 * <!-- begin-user-doc -->

	 * <!-- end-user-doc -->

	 * @generated

	 */

	public boolean eIsSet(int featureID) {

		switch (featureID) {

			case DmPackage.IMACRO_STRING_TABLE__STRING_MACROS:

				return stringMacros != null && !stringMacros.isEmpty();

		}

		return super.eIsSet(featureID);

	}

	public StringValue addMacro(String value) {

		String key = keyProvider.assignMacroStringKey();

		EMap map = getStringMacros();

		Check.checkContract(!map.containsKey(key));

		map.put(key, value);

		return new StringValue(StringValue.MACRO, key);

	}

	public StringValue addMacroWithKey(String key, String value) {

		StringValue result = null;

		EMap map = getStringMacros();

		String currValue = (String) map.get(key);

		if (currValue == null) {

			map.put(key, value);

			result = new StringValue(StringValue.MACRO, key);

		}

		else if (currValue.equals(value)) {

			result = new StringValue(StringValue.MACRO, key);

		}

		return result;

	}

	public void updateMacro(StringValue keyValue, String newValue) {

		EMap map = getStringMacros();

		Check.checkState(keyValue.isMacro());

		Check.checkState(map.containsKey(keyValue.getValue()));

		map.put(keyValue.getValue(), newValue);

	}

	public void setKeyProvider(IStringKeyProvider provider) {

		Check.checkArg(provider);

		this.keyProvider = provider;

	}

    /* (non-Javadoc)

     * @see com.nokia.sdt.emf.dm.IMacroStringTable#getKeyProvider()

     */

    public IStringKeyProvider getKeyProvider() {

        return keyProvider;

    }

	/* (non-Javadoc)

	 * @see com.nokia.sdt.emf.dm.IMacroStringTable#getUserGeneratedStringKeys()

	 */

	public Set<String> getUserGeneratedStringKeys() {

		if (userGeneratedKeys == null)

			userGeneratedKeys = new HashSet<String>();

		return userGeneratedKeys;

	}

} //IMacroStringTableImpl