Package org.apache.commons.modeler

Examples of org.apache.commons.modeler.ManagedBean

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        // Create a request attribute with our collection of beans
        Registry registry = ((ApplicationServlet) getServlet()).getRegistry();
        String names[] = registry.findManagedBeans();
        Arrays.sort(names);
        ManagedBean beans[] = new ManagedBean[names.length];
        for (int i = 0; i < names.length; i++)
            beans[i] = registry.findManagedBean(names[i]);
        request.setAttribute("beans", beans);

        // Forward to the corresponding display page
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    }

    public void execute() throws Exception {
        if( registry==null ) registry=Registry.getRegistry();
        try {
            ManagedBean managed=createManagedBean(registry, null, source, type);
            if( managed==null ) return;
            managed.setName( type );
           
            mbeans.add(managed);

        } catch( Exception ex ) {
            log.error( "Error reading descriptors ", ex);
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        if( ! ( realObj instanceof DynamicMBean )) {
            return null;
        }
        DynamicMBean dmb=(DynamicMBean)realObj;
       
        ManagedBean mbean= new ManagedBean();
       
        MBeanInfo mbi=dmb.getMBeanInfo();
       
        try {
            MBeanAttributeInfo attInfo[]=mbi.getAttributes();
            for( int i=0; i<attInfo.length; i++ ) {
                MBeanAttributeInfo mai=attInfo[i];
                String name=mai.getName();

                AttributeInfo ai=new AttributeInfo();
                ai.setName( name );

                ai.setType( mai.getType());
                ai.setReadable( mai.isReadable());
                ai.setWriteable( mai.isWritable());
                                               
                mbean.addAttribute(ai);
            }

            MBeanOperationInfo opInfo[]=mbi.getOperations();
            for( int i=0; i<opInfo.length; i++ ) {
                MBeanOperationInfo moi=opInfo[i];
                OperationInfo op=new OperationInfo();

                op.setName(moi.getName());
                op.setReturnType(moi.getReturnType());
               
                MBeanParameterInfo parms[]=moi.getSignature();
                for(int j=0; j<parms.length; j++ ) {
                    ParameterInfo pi=new ParameterInfo();
                    pi.setType(parms[i].getType());
                    pi.setName(parms[i].getName());
                    op.addParameter(pi);
                }
                mbean.addOperation(op);
            }

            if( log.isDebugEnabled())
                log.debug("Setting name: " + type );

            mbean.setName( type );

            return mbean;
        } catch( Exception ex ) {
            ex.printStackTrace();
            return null;
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            for (Node mbeanN = firstMbeanN; mbeanN != null;
                 mbeanN= DomUtil.getNext(mbeanN))
            {

                // Create a new managed bean info
                ManagedBean managed=new ManagedBean();
                DomUtil.setAttributes(managed, mbeanN);
                Node firstN;

                // Process descriptor subnode
                Node mbeanDescriptorN =
                    DomUtil.getChild(mbeanN, "descriptor");
                if (mbeanDescriptorN != null) {
                    Node firstFieldN =
                        DomUtil.getChild(mbeanDescriptorN, "field");
                    for (Node fieldN = firstFieldN; fieldN != null;
                         fieldN = DomUtil.getNext(fieldN)) {
                        FieldInfo fi = new FieldInfo();
                        DomUtil.setAttributes(fi, fieldN);
                        managed.addField(fi);
                    }
                }

                // process attribute nodes
                firstN=DomUtil.getChild( mbeanN, "attribute");
                for (Node descN = firstN; descN != null;
                     descN = DomUtil.getNext( descN ))
                {

                    // Create new attribute info
                    AttributeInfo ai=new AttributeInfo();
                    DomUtil.setAttributes(ai, descN);

                    // Process descriptor subnode
                    Node descriptorN =
                        DomUtil.getChild(descN, "descriptor");
                    if (descriptorN != null) {
                        Node firstFieldN =
                            DomUtil.getChild(descriptorN, "field");
                        for (Node fieldN = firstFieldN; fieldN != null;
                             fieldN = DomUtil.getNext(fieldN)) {
                            FieldInfo fi = new FieldInfo();
                            DomUtil.setAttributes(fi, fieldN);
                            ai.addField(fi);
                        }
                    }

                    // Add this info to our managed bean info
                    managed.addAttribute( ai );
                    if (log.isTraceEnabled()) {
                        log.trace("Create attribute " + ai);
                    }

                }

                // process constructor nodes
                firstN=DomUtil.getChild( mbeanN, "constructor");
                for (Node descN = firstN; descN != null;
                     descN = DomUtil.getNext( descN )) {

                    // Create new constructor info
                    ConstructorInfo ci=new ConstructorInfo();
                    DomUtil.setAttributes(ci, descN);

                    // Process descriptor subnode
                    Node firstDescriptorN =
                        DomUtil.getChild(descN, "descriptor");
                    if (firstDescriptorN != null) {
                        Node firstFieldN =
                            DomUtil.getChild(firstDescriptorN, "field");
                        for (Node fieldN = firstFieldN; fieldN != null;
                             fieldN = DomUtil.getNext(fieldN)) {
                            FieldInfo fi = new FieldInfo();
                            DomUtil.setAttributes(fi, fieldN);
                            ci.addField(fi);
                        }
                    }

                    // Process parameter subnodes
                    Node firstParamN=DomUtil.getChild( descN, "parameter");
                    for (Node paramN = firstParamN;  paramN != null;
                         paramN = DomUtil.getNext(paramN))
                    {
                        ParameterInfo pi=new ParameterInfo();
                        DomUtil.setAttributes(pi, paramN);
                        ci.addParameter( pi );
                    }

                    // Add this info to our managed bean info
                    managed.addConstructor( ci );
                    if (log.isTraceEnabled()) {
                        log.trace("Create constructor " + ci);
                    }

                }

                // process notification nodes
                firstN=DomUtil.getChild( mbeanN, "notification");
                for (Node descN = firstN; descN != null;
                     descN = DomUtil.getNext( descN ))
                {

                    // Create new notification info
                    NotificationInfo ni=new NotificationInfo();
                    DomUtil.setAttributes(ni, descN);

                    // Process descriptor subnode
                    Node firstDescriptorN =
                        DomUtil.getChild(descN, "descriptor");
                    if (firstDescriptorN != null) {
                        Node firstFieldN =
                            DomUtil.getChild(firstDescriptorN, "field");
                        for (Node fieldN = firstFieldN; fieldN != null;
                             fieldN = DomUtil.getNext(fieldN)) {
                            FieldInfo fi = new FieldInfo();
                            DomUtil.setAttributes(fi, fieldN);
                            ni.addField(fi);
                        }
                    }

                    // Process notification-type subnodes
                    Node firstParamN=DomUtil.getChild( descN, "notification-type");
                    for (Node paramN = firstParamN;  paramN != null;
                         paramN = DomUtil.getNext(paramN))
                    {
                        ni.addNotifType( DomUtil.getContent(paramN) );
                    }

                    // Add this info to our managed bean info
                    managed.addNotification( ni );
                    if (log.isTraceEnabled()) {
                        log.trace("Created notification " + ni);
                    }

                }

                // process operation nodes
                firstN=DomUtil.getChild( mbeanN, "operation");
                for (Node descN = firstN; descN != null;
                     descN = DomUtil.getNext( descN ))

                {

                    // Create new operation info
                    OperationInfo oi=new OperationInfo();
                    DomUtil.setAttributes(oi, descN);

                    // Process descriptor subnode
                    Node firstDescriptorN =
                        DomUtil.getChild(descN, "descriptor");
                    if (firstDescriptorN != null) {
                        Node firstFieldN =
                            DomUtil.getChild(firstDescriptorN, "field");
                        for (Node fieldN = firstFieldN; fieldN != null;
                             fieldN = DomUtil.getNext(fieldN)) {
                            FieldInfo fi = new FieldInfo();
                            DomUtil.setAttributes(fi, fieldN);
                            oi.addField(fi);
                        }
                    }

                    // Process parameter subnodes
                    Node firstParamN=DomUtil.getChild( descN, "parameter");
                    for (Node paramN = firstParamN;  paramN != null;
                         paramN = DomUtil.getNext(paramN))
                    {
                        ParameterInfo pi=new ParameterInfo();
                        DomUtil.setAttributes(pi, paramN);
                        if( log.isTraceEnabled())
                            log.trace("Add param " + pi.getName());
                        oi.addParameter( pi );
                    }

                    // Add this info to our managed bean info
                    managed.addOperation( oi );
                    if( log.isTraceEnabled()) {
                        log.trace("Create operation " + oi);
                    }

                }
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    }

    public void execute() throws Exception {
        if( registry==null ) registry=Registry.getRegistry();
        try {
            ManagedBean managed=createManagedBean(registry, null, (Class)source, type);
            if( managed==null ) return;
            managed.setName( type );

            mbeans.add(managed);

        } catch( Exception ex ) {
            log.error( "Error reading descriptors ", ex);
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     * @return ManagedBean The create MBean
     */
    public ManagedBean createManagedBean(Registry registry, String domain,
                                         Class realClass, String type)
    {
        ManagedBean mbean= new ManagedBean();

        Method methods[]=null;

        Hashtable attMap=new Hashtable();
        // key: attribute val: getter method
        Hashtable getAttMap=new Hashtable();
        // key: attribute val: setter method
        Hashtable setAttMap=new Hashtable();
        // key: operation val: invoke method
        Hashtable invokeAttMap=new Hashtable();

        methods = realClass.getMethods();

        initMethods(realClass, methods, attMap, getAttMap, setAttMap, invokeAttMap );

        try {

            Enumeration en=attMap.keys();
            while( en.hasMoreElements() ) {
                String name=(String)en.nextElement();
                AttributeInfo ai=new AttributeInfo();
                ai.setName( name );
                Method gm=(Method)getAttMap.get(name);
                if( gm!=null ) {
                    //ai.setGetMethodObj( gm );
                    ai.setGetMethod( gm.getName());
                    Class t=gm.getReturnType();
                    if( t!=null )
                        ai.setType( t.getName() );
                }
                Method sm=(Method)setAttMap.get(name);
                if( sm!=null ) {
                    //ai.setSetMethodObj(sm);
                    Class t=sm.getParameterTypes()[0];
                    if( t!=null )
                        ai.setType( t.getName());
                    ai.setSetMethod( sm.getName());
                }
                ai.setDescription("Introspected attribute " + name);
                if( log.isDebugEnabled()) log.debug("Introspected attribute " +
                        name + " " + gm + " " + sm);
                if( gm==null )
                    ai.setReadable(false);
                if( sm==null )
                    ai.setWriteable(false);
                if( sm!=null || gm!=null )
                    mbean.addAttribute(ai);
            }

            en=invokeAttMap.keys();
            while( en.hasMoreElements() ) {
                String name=(String)en.nextElement();
                Method m=(Method)invokeAttMap.get(name);
                if( m!=null && name != null ) {
                    OperationInfo op=new OperationInfo();
                    op.setName(name);
                    op.setReturnType(m.getReturnType().getName());
                    op.setDescription("Introspected operation " + name);
                    Class parms[]=m.getParameterTypes();
                    for(int i=0; i<parms.length; i++ ) {
                        ParameterInfo pi=new ParameterInfo();
                        pi.setType(parms[i].getName());
                        pi.setName( "param" + i);
                        pi.setDescription("Introspected parameter param" + i);
                        op.addParameter(pi);
                    }
                    mbean.addOperation(op);
                } else {
                    log.error("Null arg " + name + " " + m );
                }
            }

            Constructor[] constructors = realClass.getConstructors();
            for(int i=0;i<constructors.length;i++) {
                ConstructorInfo info = new ConstructorInfo();
                String className = realClass.getName();
                int nIndex = -1;
                if((nIndex = className.lastIndexOf('.'))!=-1) {
                    className = className.substring(nIndex+1);
                }
                info.setName(className);
                info.setDescription(constructors[i].getName());
                Class classes[] = constructors[i].getParameterTypes();
                for(int j=0;j<classes.length;j++) {
                    ParameterInfo pi = new ParameterInfo();
                    pi.setType(classes[j].getName());
                    pi.setName("param" + j);
                    pi.setDescription("Introspected parameter param" + j);
                    info.addParameter(pi);
                }
                mbean.addConstructor(info);
            }
           
            if( log.isDebugEnabled())
                log.debug("Setting name: " + type );
            mbean.setName( type );

            return mbean;
        } catch( Exception ex ) {
            ex.printStackTrace();
            return null;
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        if( outFile !=null ) {
            FileOutputStream fos=new FileOutputStream(outFile);
            ObjectOutputStream oos=new ObjectOutputStream(fos);
            Registry reg=Registry.getRegistry();
            String beans[]=reg.findManagedBeans();
            ManagedBean mbeans[]=new ManagedBean[beans.length];
            for( int i=0; i<beans.length; i++ ) {
                mbeans[i]=reg.findManagedBean(beans[i]);
            }
            oos.writeObject( mbeans );
            oos.flush();
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                    } catch (Exception e) {
                        log.error( "Error in invoke " + name + " " + operation);
                    }
                }

                ManagedBean managed=new ManagedBean();
                DomUtil.setAttributes(managed, mbeanN);
                Node firstN;

                // process attribute info
                firstN=DomUtil.getChild( mbeanN, "attribute");
                for (Node descN = firstN; descN != null;
                     descN = DomUtil.getNext( descN ))
                {
                    AttributeInfo ci=new AttributeInfo();
                    DomUtil.setAttributes(ci, descN);
                    managed.addAttribute( ci );
                }

            }

            long t2=System.currentTimeMillis();
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     */
    public static void destroyMBean(UserDatabase userDatabase)
        throws Exception {

        String mname = createManagedName(userDatabase);
        ManagedBean managed = registry.findManagedBean(mname);
        if (managed == null) {
            return;
        }
        String domain = managed.getDomain();
        if (domain == null)
            domain = mserver.getDefaultDomain();
        ObjectName oname = createObjectName(domain, userDatabase);
        mserver.unregisterMBean(oname);

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    public static void destroyMBean(Valve valve, Container container)
        throws Exception {

        ((Contained)valve).setContainer(container);
        String mname = createManagedName(valve);
        ManagedBean managed = registry.findManagedBean(mname);
        if (managed == null) {
            return;
        }
        String domain = managed.getDomain();
        if (domain == null)
            domain = mserver.getDefaultDomain();
        ObjectName oname = createObjectName(domain, valve);
        try {
            ((Contained)valve).setContainer(null);
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  • org.apache.catalina.core.StandardContext
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