/**************************************************************************************
 * Copyright (c) Jonas Bonér, Alexandre Vasseur. All rights reserved.                 *
 * http://aspectwerkz.codehaus.org                                                    *
 * ---------------------------------------------------------------------------------- *
 * The software in this package is published under the terms of the QPL license       *
 * a copy of which has been included with this distribution in the license.txt file.  *
 **************************************************************************************/
package org.codehaus.aspectwerkz.attribdef.definition;

import java.util.Set;
import java.util.HashSet;
import java.util.Map;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Collection;
import java.util.ArrayList;
import java.util.List;

import gnu.trove.TObjectIntHashMap;

import org.codehaus.aspectwerkz.util.SequencedHashMap;
import org.codehaus.aspectwerkz.metadata.MethodMetaData;
import org.codehaus.aspectwerkz.metadata.FieldMetaData;
import org.codehaus.aspectwerkz.metadata.ClassMetaData;
import org.codehaus.aspectwerkz.exception.WrappedRuntimeException;
import org.codehaus.aspectwerkz.attribdef.definition.AspectDefinition;
import org.codehaus.aspectwerkz.attribdef.definition.AdviceDefinition;
import org.codehaus.aspectwerkz.attribdef.definition.attribute.AspectAttributeParser;
import org.codehaus.aspectwerkz.attribdef.definition.attribute.DefaultAspectAttributeParser;
import org.codehaus.aspectwerkz.definition.expression.Expression;
import org.codehaus.aspectwerkz.definition.expression.PointcutType;
import org.codehaus.aspectwerkz.definition.AspectWerkzDefinition;

/**
 * Implementation of the AspectWerkz interface for the attribdef definition model.
 *
 * @author <a href="mailto:jboner@codehaus.org">Jonas Bonér</a>
 * @author <a href="mailto:alex@gnilux.com">Alexandre Vasseur</a>
 */
public class AspectWerkzDefinitionImpl implements AspectWerkzDefinition {

    /**
     * Holds the indexes for the aspects. The aspect indexes are needed here (instead of in the
     * AspectWerkz class like the advice indexes) since they need to be available to the
     * transformers before the AspectWerkz system has been initialized.
     */
    private final TObjectIntHashMap m_aspectIndexes = new TObjectIntHashMap();

    /**
     * Holds the indexes for the mixins. The mixin indexes are needed here (instead of in the
     * AspectWerkz class like the advice indexes) since they need to be available to the
     * transformers before the AspectWerkz system has been initialized.
     */
    private final TObjectIntHashMap m_introductionIndexes = new TObjectIntHashMap();

    /**
     * Set with the aspect class names.
     */
    private Set m_aspectsToUse = new HashSet();

    /**
     * Maps the aspects to it's name.
     */
    private final Map m_aspectMap = new SequencedHashMap();

    /**
     * Maps the mixins to it's name.
     */
    private final Map m_introductionMap = new HashMap();

    /**
     * Maps the interface mixins to it's name.
     */
    private final Map m_interfaceIntroductionMap = new HashMap();

    /**
     * The UUID for this definition.
     */
    private String m_uuid = "default";

    /**
     * The include packages.
     */
    private final Set m_includePackages = new HashSet();

    /**
     * The exclude packages.
     */
    private final Set m_excludePackages = new HashSet();

    /**
     * The default attribute parser.
     * TODO: make customizable (-D..)
     * TODO: use factory
     */
    private final AspectAttributeParser m_attributeParser = new DefaultAspectAttributeParser();

    /**
     * Marks the definition as initialized.
     */
    private boolean m_aspectsLoaded = false;

    /**
     * The parameters passed to the aspects.
     */
    private final Map m_parametersToAspects = new HashMap();

    /**
     * Creates a new instance, creates and sets the system aspect.
     */
    public AspectWerkzDefinitionImpl() {
//        AspectDefinition systemAspect = new AspectDefinition();
//        systemAspect.setName(SYSTEM_ASPECT);
//        synchronized (m_aspectMap) {
//            m_aspectMap.put(SYSTEM_ASPECT, systemAspect);
//        }
    }

    /**
     * Loads the aspects.
     *
     * @param loader the class loader to use to load the aspects
     */
    public void loadAspects(final ClassLoader loader) {
        if (m_aspectsLoaded) return;
        m_aspectsLoaded = true;
        for (Iterator it = getAspectsToUse().iterator(); it.hasNext();) {
            loadAspect((String)it.next(), loader);
        }
    }

    /**
     * Checks if the definition is of type attribute definition.
     *
     * @return returns true for this definition
     */
    public boolean isAttribDef() {
        return true;
    }

    /**
     * Checks if the definition is of type XML definition.
     *
     * @return returns false for this definition
     */
    public boolean isXmlDef() {
        return false;
    }

    /**
     * Sets the UUID for the definition.
     *
     * @param uuid the UUID
     */
    public void setUuid(final String uuid) {
        m_uuid = uuid;
    }

    /**
     * Returns the UUID for the definition.
     *
     * @return the UUID
     */
    public String getUuid() {
        return m_uuid;
    }

    /**
     * Returns the include packages.
     *
     * @return the include packages
     */
    public Set getIncludePackages() {
        return m_includePackages;
    }

    /**
     * Returns the exclude packages.
     *
     * @return the exclude packages
     */
    public Set getExcludePackages() {
        return m_excludePackages;
    }

    /**
     * Returns a collection with the aspect definitions registered.
     *
     * @return the aspect definitions
     */
    public Collection getAspectDefinitions() {
        if (!m_aspectsLoaded) throw new IllegalStateException("aspects are not loaded");
        Collection clone = new ArrayList(m_aspectMap.size());
        for (Iterator it = m_aspectMap.values().iterator(); it.hasNext();) {
            clone.add(it.next());
        }
        return clone;
    }

    /**
     * Returns a collection with the introduction definitions registered.
     *
     * @return the introduction definitions
     */
    public Collection getIntroductionDefinitions() {
        if (!m_aspectsLoaded) throw new IllegalStateException("aspects are not loaded");
        Collection clone = new ArrayList(m_introductionMap.size());
        for (Iterator it = m_introductionMap.values().iterator(); it.hasNext();) {
            clone.add(it.next());
        }
        return clone;
    }

    /**
     * Returns a collection with the advice definitions registered.
     *
     * @return the advice definitions
     */
    public Collection getAdviceDefinitions() {
        if (!m_aspectsLoaded) throw new IllegalStateException("aspects are not loaded");
        final Collection adviceDefs = new ArrayList();
        for (Iterator it = m_aspectMap.values().iterator(); it.hasNext();) {
            AspectDefinition aspectDef = (AspectDefinition)it.next();
            adviceDefs.addAll(aspectDef.getAroundAdvices());
            adviceDefs.addAll(aspectDef.getBeforeAdvices());
            adviceDefs.addAll(aspectDef.getAfterAdvices());
        }
        return adviceDefs;
    }

    /**
     * Returns a specific aspect definition.
     *
     * @param name the name of the aspect definition
     * @return the aspect definition
     */
    public AspectDefinition getAspectDefinition(final String name) {
        if (!m_aspectsLoaded) throw new IllegalStateException("aspects are not loaded");
        return (AspectDefinition)m_aspectMap.get(name);
    }

    /**
     * Returns a specific advice definition.
     *
     * @param name the name of the advice definition
     * @return the advice definition
     */
    public AdviceDefinition getAdviceDefinition(final String name) {
        if (!m_aspectsLoaded) throw new IllegalStateException("aspects are not loaded");
        Collection adviceDefs = getAdviceDefinitions();
        for (Iterator it = adviceDefs.iterator(); it.hasNext();) {
            AdviceDefinition adviceDef = (AdviceDefinition)it.next();
            if (adviceDef.getName().equals(name)) {
                return adviceDef;
            }
        }
        return null;
    }

    /**
     * Returns the name of the implementation for an introduction.
     *
     * @param introductionName the name of the introduction
     * @return the name of the interface
     */
    public String getIntroductionImplName(final String introductionName) {
        throw new UnsupportedOperationException("not implemented");
    }

    /**
     * Returns the introduction definitions for a specific class.
     *
     * @param classMetaData the class meta-data
     * @return a list with the introduction definitions
     */
    public List getIntroductionDefinitions(final ClassMetaData classMetaData) {
        if (!m_aspectsLoaded) throw new IllegalStateException("aspects are not loaded");
        final List introDefs = new ArrayList();
        for (Iterator it = m_introductionMap.values().iterator(); it.hasNext();) {
            IntroductionDefinition introDef = (IntroductionDefinition)it.next();
            if (introDef.getExpression().match(classMetaData)) {
                introDefs.add(introDef);
            }
        }
        return introDefs;
    }

    /**
     * Returns the index for a specific introduction.
     *
     * @param aspectName the name of the aspect
     * @return the index
     */
    public int getAspectIndexByName(final String aspectName) {
        if (!m_aspectsLoaded) throw new IllegalStateException("aspects are not loaded");
        if (aspectName == null) throw new IllegalArgumentException("aspect name can not be null");
        int index = m_aspectIndexes.get(aspectName);
        if (index < 1) throw new RuntimeException("aspect [" + aspectName + "] does not exist, failed in retrieving aspect index");
        return index;
    }

    /**
     * Returns the index for a specific introduction.
     *
     * @param mixinName the name of the mixin
     * @return the index
     */
    public int getMixinIndexByName(final String mixinName) {
        if (!m_aspectsLoaded) throw new IllegalStateException("aspects are not loaded");
        if (mixinName == null) throw new IllegalArgumentException("mixin name can not be null");
        int index = m_introductionIndexes.get(mixinName);
        if (index < 1) throw new RuntimeException("mixin [" + mixinName + "] does not exist, failed in retrieving mixin index");
        return index;
    }

    /**
     * Returns the class name for the join point controller, if there is a match.
     *
     * @param classMetaData the class meta-data
     * @param methodMetaData the method meta-data
     * @return the controller class name
     */
    public String getJoinPointController(final ClassMetaData classMetaData,
                                         final MethodMetaData methodMetaData) {
        if (!m_aspectsLoaded) throw new IllegalStateException("aspects are not loaded");
        if (classMetaData == null) throw new IllegalArgumentException("class meta-data can not be null");
        if (methodMetaData == null) throw new IllegalArgumentException("method meta-data can not be null");

        for (Iterator it = m_aspectMap.values().iterator(); it.hasNext();) {
            AspectDefinition aspectDef = (AspectDefinition)it.next();
            Collection controllerDefs = aspectDef.getControllers();
            for (Iterator it2 = controllerDefs.iterator(); it2.hasNext();) {
                ControllerDefinition controllerDef = (ControllerDefinition)it2.next();
                if (controllerDef.getExpression().match(classMetaData, methodMetaData)) {
                    return controllerDef.getClassName();
                }
            }
        }
        return null;
    }

    /**
     * Returns a set with the aspects to use.
     *
     * @return the aspects to use
     */
    public Set getAspectsToUse() {
        if (!m_aspectsLoaded) throw new IllegalStateException("aspects are not loaded");
        return m_aspectsToUse;
    }

    /**
     * Adds a new aspect definition.
     *
     * @param aspectDef the aspect definition
     */
    public void addAspect(final AspectDefinition aspectDef) {
        if (aspectDef == null) throw new IllegalArgumentException("aspect definition can not be null");
        if (m_aspectIndexes.containsKey(aspectDef.getName())) {
            return;
        }
        synchronized (m_aspectMap) {
            synchronized (m_aspectIndexes) {
                final int index = m_aspectMap.values().size() + 1;
                m_aspectIndexes.put(aspectDef.getName(), index);
                m_aspectMap.put(aspectDef.getName(), aspectDef);
            }
        }
    }

    /**
     * Adds a new mixin definition.
     *
     * @param introDef the mixin definition
     */
    public void addIntroductionDefinition(final IntroductionDefinition introDef) {
        if (introDef == null) throw new IllegalArgumentException("introduction definition can not be null");
        if (m_introductionIndexes.containsKey(introDef.getName())) {
//            if (true) throw new RuntimeException("warning here - doublon in name");
            return;
        }
        synchronized (m_introductionMap) {
            synchronized (m_introductionIndexes) {
                final int index = m_introductionMap.values().size() + 1;
                m_introductionIndexes.put(introDef.getName(), index);
                m_introductionMap.put(introDef.getName(), introDef);
            }
        }
    }

    /**
     * Adds a new pure interface mixin definition.
     *
     * @param introDef the mixin definition
     */
    public void addInterfaceIntroductionDefinition(final InterfaceIntroductionDefinition introDef) {
        if (introDef == null) throw new IllegalArgumentException("introduction definition can not be null");
        synchronized (m_interfaceIntroductionMap) {
            m_interfaceIntroductionMap.put(introDef.getName(), introDef);
        }
    }

    /**
     * Adds a new aspect to use.
     *
     * @param className the class name of the aspect
     */
    public void addAspectToUse(final String className) {
        synchronized (m_aspectsToUse) {
            m_aspectsToUse.add(className);
        }
    }

    /**
     * Adds a new include package.
     *
     * @param includePackage the new include package
     */
    public void addIncludePackage(final String includePackage) {
        synchronized (m_includePackages) {
            m_includePackages.add(includePackage+".");
        }
    }

    /**
     * Adds a new exclude package.
     *
     * @param excludePackage the new exclude package
     */
    public void addExcludePackage(final String excludePackage) {
        synchronized (m_excludePackages) {
            m_excludePackages.add(excludePackage+".");
        }
    }

    /**
     * Checks if there exists an advice with the name specified.
     *
     * @param name the name of the advice
     * @return boolean
     */
    public boolean hasAdvice(final String name) {
        Collection adviceDefs = getAdviceDefinitions();
        for (Iterator it = adviceDefs.iterator(); it.hasNext();) {
            AdviceDefinition adviceDef = (AdviceDefinition)it.next();
            if (adviceDef.getName().equals(name)) {
                return true;
            }
        }
        return false;
    }

    /**
     * Checks if there exists an introduction with the name specified.
     *
     * @param name the name of the introduction
     * @return boolean
     */
    public boolean hasIntroduction(final String name) {
        if (!m_aspectsLoaded) throw new IllegalStateException("aspects are not loaded");
        return m_introductionMap.containsKey(name);
    }

    /**
     * Checks if a class has an <tt>AspectMetaData</tt>.
     *
     * @param className the name or the class
     * @return boolean
     */
    public boolean inIncludePackage(final String className) {
        if (className == null) throw new IllegalArgumentException("class name can not be null");
        if (m_includePackages.isEmpty()) {
            return true;
        }
        for (Iterator it = m_includePackages.iterator(); it.hasNext();) {
            String packageName = (String)it.next();
            if (className.startsWith(packageName)) {
                return true;
            }
        }
        return false;
    }

    /**
     * Checks if a class has an <tt>AspectMetaData</tt>.
     *
     * @param className the name or the class
     * @return boolean
     */
    public boolean inExcludePackage(final String className) {
        if (className == null) throw new IllegalArgumentException("class name can not be null");
        for (Iterator it = m_excludePackages.iterator(); it.hasNext();) {
            String packageName = (String)it.next();
            if (className.startsWith(packageName)) {
                return true;
            }
        }
        return false;
    }

    /**
     * Checks if a class has an <tt>Mixin</tt>.
     *
     * @param classMetaData the class meta-data
     * @return boolean
     */
    public boolean hasIntroductions(final ClassMetaData classMetaData) {
        if (!m_aspectsLoaded) throw new IllegalStateException("aspects are not loaded");
        if (classMetaData == null) throw new IllegalArgumentException("class meta-data can not be null");

        for (Iterator it = m_introductionMap.values().iterator(); it.hasNext();) {
            IntroductionDefinition introDef = (IntroductionDefinition)it.next();
            Expression expression = introDef.getExpression();
            if (expression.getType().equals(PointcutType.CLASS) && expression.match(classMetaData)) {
                return true;
            }
        }
        return false;
    }

    /**
     * Checks if a method has a <tt>MethodPointcut</tt>.
     * Only checks for a class match to allow early filtering.
     *
     * @param classMetaData the class meta-data
     * @return boolean
     */
    public boolean hasExecutionPointcut(final ClassMetaData classMetaData) {
        if (!m_aspectsLoaded) throw new IllegalStateException("aspects are not loaded");
        if (classMetaData == null) throw new IllegalArgumentException("class meta-data can not be null");

        for (Iterator it = m_aspectMap.values().iterator(); it.hasNext();) {
            AspectDefinition aspectDef = (AspectDefinition)it.next();

            for (Iterator it2 = aspectDef.getAllAdvices().iterator(); it2.hasNext();) {
                AdviceDefinition adviceDef = (AdviceDefinition)it2.next();
                Expression expression = adviceDef.getExpression();
                if (expression.getType().equals(PointcutType.EXECUTION)
                        && expression.match(classMetaData)) {
                    return true;
                }
            }
        }
        return false;
    }

    /**
     * Checks if a method has a <tt>MethodPointcut</tt>.
     *
     * @param classMetaData the class meta-data
     * @param methodMetaData the method meta-data
     * @return boolean
     */
    public boolean hasExecutionPointcut(final ClassMetaData classMetaData,
                                        final MethodMetaData methodMetaData) {
        if (!m_aspectsLoaded) throw new IllegalStateException("aspects are not loaded");
        if (classMetaData == null) throw new IllegalArgumentException("class meta-data can not be null");
        if (methodMetaData == null) throw new IllegalArgumentException("method meta-data can not be null");

        for (Iterator it = m_aspectMap.values().iterator(); it.hasNext();) {
            AspectDefinition aspectDef = (AspectDefinition)it.next();
            for (Iterator it2 = aspectDef.getAllAdvices().iterator(); it2.hasNext();) {
                AdviceDefinition adviceDef = (AdviceDefinition)it2.next();
                Expression expression = adviceDef.getExpression();
                if (expression.getType().equals(PointcutType.EXECUTION)
                        && expression.match(classMetaData, methodMetaData)) {
                    return true;
                }
            }
        }
        return false;
    }

    /**
     * Checks if a class has a <tt>GetFieldPointcut</tt>.
     * Only checks for a class match to allow early filtering.
     *
     * @param classMetaData the class meta-data
     * @return boolean
     */
    public boolean hasGetPointcut(final ClassMetaData classMetaData) {
        if (!m_aspectsLoaded) throw new IllegalStateException("aspects are not loaded");
        if (classMetaData == null) throw new IllegalArgumentException("class meta-data can not be null");

        for (Iterator it = m_aspectMap.values().iterator(); it.hasNext();) {
            AspectDefinition aspectDef = (AspectDefinition)it.next();
            for (Iterator it2 = aspectDef.getAllAdvices().iterator(); it2.hasNext();) {
                AdviceDefinition adviceDef = (AdviceDefinition)it2.next();
                Expression expression = adviceDef.getExpression();
                if (expression.getType().equals(PointcutType.GET)
                        && expression.match(classMetaData)) {
                    return true;
                }
            }
        }
        return false;
    }

    /**
     * Checks if a class and field has a <tt>GetFieldPointcut</tt>.
     *
     * @param classMetaData the class meta-data
     * @param fieldMetaData the name or the field
     * @return boolean
     */
    public boolean hasGetPointcut(final ClassMetaData classMetaData,
                                  final FieldMetaData fieldMetaData) {
        if (!m_aspectsLoaded) throw new IllegalStateException("aspects are not loaded");
        if (classMetaData == null) throw new IllegalArgumentException("class meta-data can not be null");
        if (fieldMetaData == null) throw new IllegalArgumentException("field meta-data can not be null");

        for (Iterator it = m_aspectMap.values().iterator(); it.hasNext();) {
            AspectDefinition aspectDef = (AspectDefinition)it.next();
            for (Iterator it2 = aspectDef.getAllAdvices().iterator(); it2.hasNext();) {
                AdviceDefinition adviceDef = (AdviceDefinition)it2.next();
                Expression expression = adviceDef.getExpression();
                if (expression.getType().equals(PointcutType.GET)
                        && expression.match(classMetaData, fieldMetaData)) {
                    return true;
                }
            }
        }
        return false;
    }

    /**
     * Checks if a class has a <tt>SetFieldPointcut</tt>.
     * Only checks for a class match to allow early filtering.
     *
     * @param classMetaData the class meta-data
     * @return boolean
     */
    public boolean hasSetPointcut(final ClassMetaData classMetaData) {
        if (!m_aspectsLoaded) throw new IllegalStateException("aspects are not loaded");
        if (classMetaData == null) throw new IllegalArgumentException("class meta-data can not be null");

        for (Iterator it = m_aspectMap.values().iterator(); it.hasNext();) {
            AspectDefinition aspectDef = (AspectDefinition)it.next();
            for (Iterator it2 = aspectDef.getAllAdvices().iterator(); it2.hasNext();) {
                AdviceDefinition adviceDef = (AdviceDefinition)it2.next();
                Expression expression = adviceDef.getExpression();
                if (expression.getType().equals(PointcutType.SET)
                        && expression.match(classMetaData)) {
                    return true;
                }
            }
        }
        return false;
    }

    /**
     * Checks if a class and field has a <tt>SetFieldPointcut</tt>.
     *
     * @param classMetaData the class meta-data
     * @param fieldMetaData the name or the field
     * @return boolean
     */
    public boolean hasSetPointcut(final ClassMetaData classMetaData,
                                  final FieldMetaData fieldMetaData) {
        if (!m_aspectsLoaded) throw new IllegalStateException("aspects are not loaded");
        if (classMetaData == null) throw new IllegalArgumentException("class meta-data can not be null");
        if (fieldMetaData == null) throw new IllegalArgumentException("field meta-data can not be null");

        for (Iterator it = m_aspectMap.values().iterator(); it.hasNext();) {
            AspectDefinition aspectDef = (AspectDefinition)it.next();
            for (Iterator it2 = aspectDef.getAllAdvices().iterator(); it2.hasNext();) {
                AdviceDefinition adviceDef = (AdviceDefinition)it2.next();
                Expression expression = adviceDef.getExpression();
                if (expression.getType().equals(PointcutType.SET)
                        && expression.match(classMetaData, fieldMetaData)) {
                    return true;
                }
            }
        }
        return false;
    }

    /**
     * Checks if a class and method has a <tt>ThrowsPointcut</tt>.
     * Only checks for a class match to allow early filtering.
     *
     * @param classMetaData the class meta-data
     * @return boolean
     */
    public boolean hasThrowsPointcut(final ClassMetaData classMetaData) {
        if (!m_aspectsLoaded) throw new IllegalStateException("aspects are not loaded");
        if (classMetaData == null) throw new IllegalArgumentException("class meta-data can not be null");

        for (Iterator it = m_aspectMap.values().iterator(); it.hasNext();) {
            AspectDefinition aspectDef = (AspectDefinition)it.next();
            for (Iterator it2 = aspectDef.getAllAdvices().iterator(); it2.hasNext();) {
                AdviceDefinition adviceDef = (AdviceDefinition)it2.next();
                Expression expression = adviceDef.getExpression();
                if (expression.getType().equals(PointcutType.THROWS)
                        && expression.match(classMetaData)) {
                    return true;
                }
            }
        }
        return false;
    }

    /**
     * Checks if a class and method has a <tt>ThrowsPointcut</tt>.
     *
     * @param classMetaData the class meta-data
     * @param methodMetaData the name or the method
     * @return boolean
     */
    public boolean hasThrowsPointcut(final ClassMetaData classMetaData,
                                     final MethodMetaData methodMetaData) {
        if (!m_aspectsLoaded) throw new IllegalStateException("aspects are not loaded");
        if (classMetaData == null) throw new IllegalArgumentException("class meta-data can not be null");
        if (methodMetaData == null) throw new IllegalArgumentException("method meta-data can not be null");

        for (Iterator it = m_aspectMap.values().iterator(); it.hasNext();) {
            AspectDefinition aspectDef = (AspectDefinition)it.next();
            for (Iterator it2 = aspectDef.getAllAdvices().iterator(); it2.hasNext();) {
                AdviceDefinition adviceDef = (AdviceDefinition)it2.next();
                Expression expression = adviceDef.getExpression();
                if (expression.getType().equals(PointcutType.THROWS)
                        && expression.match(classMetaData, methodMetaData)) {
                    return true;
                }
            }
        }
        return false;
    }

    /**
     * Checks if a class should care about advising caller side method invocations.
     * This method matches the caller class (when the isCallerSideMethod matches the callee class)
     *
     * @param classMetaData the class meta-data
     * @return boolean
     */
    public boolean hasCallPointcut(final ClassMetaData classMetaData) {
        if (!m_aspectsLoaded) throw new IllegalStateException("aspects are not loaded");
        if (classMetaData == null) throw new IllegalArgumentException("class meta-data can not be null");

        for (Iterator it = m_aspectMap.values().iterator(); it.hasNext();) {
            AspectDefinition aspectDef = (AspectDefinition)it.next();
            for (Iterator it2 = aspectDef.getAllAdvices().iterator(); it2.hasNext();) {
                AdviceDefinition adviceDef = (AdviceDefinition)it2.next();
                Expression expression = adviceDef.getExpression();
                if (expression.getType().equals(PointcutType.CALL)
                        && expression.match(classMetaData)) {
                    return true;
                }
            }
        }
        return false;
    }

    /**
     * Checks if a method is a defined as a caller side method.
     * This method matches the callee class (when the hasCallerSideMethod matches the caller class)
     *
     * @param classMetaData the class meta-data
     * @param methodMetaData the name or the method
     * @return boolean
     */
    public boolean isPickedOutByCallPointcut(final ClassMetaData classMetaData,
                                             final MethodMetaData methodMetaData) {
        if (!m_aspectsLoaded) throw new IllegalStateException("aspects are not loaded");
        if (classMetaData == null) throw new IllegalArgumentException("class meta-data can not be null");
        if (methodMetaData == null) throw new IllegalArgumentException("method meta-data can not be null");

        for (Iterator it = m_aspectMap.values().iterator(); it.hasNext();) {
            AspectDefinition aspectDef = (AspectDefinition)it.next();
            for (Iterator it2 = aspectDef.getAllAdvices().iterator(); it2.hasNext();) {
                AdviceDefinition adviceDef = (AdviceDefinition)it2.next();
                Expression expression = adviceDef.getExpression();
                if (expression.getType().equals(PointcutType.CALL)
                        && expression.match(classMetaData, methodMetaData)) {
                    return true;
                }
            }
        }
        return false;
    }

    /**
     * Returns the interface introductions for a certain class merged
     * with the implementation based introductions as well
     *
     * @param classMetaData the class meta-data
     * @return the names
     */
    public List getInterfaceIntroductions(final ClassMetaData classMetaData) {
        if (!m_aspectsLoaded) throw new IllegalStateException("aspects are not loaded");
        if (classMetaData == null) throw new IllegalArgumentException("class meta-data can not be null");

        List interfaceIntroductionDefs = new ArrayList();
        for (Iterator it = m_interfaceIntroductionMap.values().iterator(); it.hasNext();) {
            InterfaceIntroductionDefinition introDef = (InterfaceIntroductionDefinition)it.next();
            Expression expression = introDef.getExpression();
            if (expression.getType().equals(PointcutType.CLASS) && expression.match(classMetaData)) {
                interfaceIntroductionDefs.add(introDef);
            }
        }
        // add introduction definitions as well
        interfaceIntroductionDefs.addAll(getIntroductionDefinitions(classMetaData));
        return interfaceIntroductionDefs;
    }

    /**
     * Builds up a meta-data repository for the mixins.
     *
     * @param repository the repository
     * @param loader the class loader to use
     */
    public void buildMixinMetaDataRepository(final Set repository, final ClassLoader loader) {
        loadAspects(loader);
    }


    /**
     * Adds a new parameter for the aspect.
     *
     * @param aspectClassName the name of the aspect
     * @param key the key
     * @param value the value
     */
    public void addParameter(final String aspectClassName, final String key, final String value) {
        Map parameters;
        if (m_parametersToAspects.containsKey(aspectClassName)) {
            parameters = (Map)m_parametersToAspects.get(aspectClassName);
            parameters.put(key, value);
        }
        else {
            parameters = new HashMap();
            parameters.put(key, value);
            m_parametersToAspects.put(aspectClassName, parameters);
        }
    }

    /**
     * Returns parameters for the aspect.
     *
     * @param aspectClassName the name of the aspect
     * @return parameters
     */
    public Map getParameters(final String aspectClassName) {
        if (m_parametersToAspects.containsKey(aspectClassName)) {
            return (Map)m_parametersToAspects.get(aspectClassName);
        }
        else {
            return new HashMap();
        }
    }

    /**
     * Loads, parses and stores the aspect.
     *
     * @param aspectClassName the class name of the aspect
     * @param loader the class loader to use
     */
    private void loadAspect(final String aspectClassName, final ClassLoader loader) {
        try {
            Class klass = loader.loadClass(aspectClassName);
            AspectDefinition aspectDef = m_attributeParser.parse(klass);
            addAspect(aspectDef);

            for (Iterator mixins = aspectDef.getInterfaceIntroductions().iterator(); mixins.hasNext();) {
                addInterfaceIntroductionDefinition((InterfaceIntroductionDefinition)mixins.next());
            }
            for (Iterator mixins = aspectDef.getIntroductions().iterator(); mixins.hasNext();) {
                addIntroductionDefinition((IntroductionDefinition)mixins.next());
            }
        }
        catch (ClassNotFoundException e) {
            throw new WrappedRuntimeException(e);
        }
    }
}

