Examples of org.apache.avalon.framework.component.ComponentSelector.select()

Package org.apache.avalon.framework.component

Class org.apache.avalon.framework.component.ComponentSelector

Examples of org.apache.avalon.framework.component.ComponentSelector.select()

org.apache.avalon.framework.component.ComponentSelector.select()
rl") ); } catch (...) { ... } @param hint A hint to retrieve the correct Component. @return the desired component @throws ComponentException If the given role is not associatedwith a Component, or a Component instance cannot be created.

    
    try {
      ComponentSelector selector
        = (ComponentSelector)manager.lookup(Interpreter.ROLE);
      // Obtain the Interpreter instance for this language
      interpreter = (Interpreter)selector.select(language);
    }
    catch (Exception ex) {
      throw new ComponentException("ScriptNode: Couldn't obtain a flow "
                                   + "interpreter for " + language
                                   + ": " + ex);

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        ComponentSelector principalproviders = null;
        PrincipalProvider principalprovider = null;
        try {
            principalproviders = (ComponentSelector)this.manager.lookup(PrincipalProvider.ROLE+"Selector");


            principalprovider = (PrincipalProvider)principalproviders.select(this.principalprovidername);


            Principal[] principals = principalprovider.getPrincipals(this.principalcaller);
            PrincipalGroup[] principalgroups = principalprovider.getPrincipalGroups(this.principalcaller);


            this.contentHandler.startDocument();

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    public void addTransformer (String role, String source, Parameters param)
    throws Exception {
        ComponentSelector selector = (ComponentSelector) this.newManager.lookup(Transformer.ROLE + "Selector");
        this.transformerSelectors.add(selector);
        this.transformers.add((Transformer)selector.select(role));
        this.transformerSources.add(source);
        this.transformerParams.add(param);
    }


    public boolean process(Environment environment) throws Exception {

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        String outputMode = null;
        try {
            outputSelector=(ComponentSelector) this.manager.lookup(OUTPUT_MODULE_SELECTOR); 
            outputMode = (String) request.getAttribute(ATTRIBUTE_KEY);
            if (outputMode != null && outputSelector != null && outputSelector.hasComponent(outputMode)){
                output = (OutputModule) outputSelector.select(outputMode);
            }
            output.setAttribute( null, request, key, value );
        } catch (Exception e) {
                if (getLogger().isWarnEnabled())
                    getLogger()

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            ComponentSelector outputSelector = null;
            OutputModule output = null;
            try {
                outputSelector=(ComponentSelector) this.manager.lookup(OUTPUT_MODULE_SELECTOR); 
                if (outputMode != null && outputSelector != null && outputSelector.hasComponent(outputMode)){
                    output = (OutputModule) outputSelector.select(outputMode);
                }
                output.commit( null, request );
            } catch (Exception e) {
                if (getLogger().isWarnEnabled())
                    getLogger()

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                    ComponentSelector outputSelector = null;
                    OutputModule output = null;
                    try {
                        outputSelector=(ComponentSelector) this.manager.lookup(OUTPUT_MODULE_SELECTOR); 
                        if (outputMode != null && outputSelector != null && outputSelector.hasComponent(outputMode)){
                            output = (OutputModule) outputSelector.select(outputMode);
                        }
                        output.rollback( null, request, e);
                    } catch (Exception e2) {
                        if (getLogger().isWarnEnabled())
                            getLogger()

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            ComponentSelector inputSelector = null;
            InputModule input = null;
            try {
                inputSelector=(ComponentSelector) this.manager.lookup(INPUT_MODULE_SELECTOR); 
                if (column.mode != null && inputSelector != null && inputSelector.hasComponent(column.mode)){
                    input = (InputModule) inputSelector.select(column.mode);
                }


                if ( column.isSet ){
                    if (getLogger().isDebugEnabled())
                        getLogger().debug( "Trying to set column " + cname +" using getAttributeValues method");

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        ComponentSelector autoincrSelector = null;
        AutoIncrementModule autoincr = null;
        try {
            autoincrSelector=(ComponentSelector) this.manager.lookup(DATABASE_MODULE_SELECTOR); 
            if (key.mode != null && autoincrSelector != null && autoincrSelector.hasComponent(key.mode)){
                autoincr = (AutoIncrementModule) autoincrSelector.select(key.mode);
            }


            if (!autoincr.includeAsValue()) {
                String keyname = getOutputName( tableConf, key.columnConf, rowIndex );
                Object value = autoincr.getPostValue( tableConf, key.columnConf, key.modeConf, conn, statement, request );

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        ComponentSelector autoincrSelector = null;
        AutoIncrementModule autoincr = null;
        try {
            autoincrSelector=(ComponentSelector) this.manager.lookup(DATABASE_MODULE_SELECTOR); 
            if (column.mode != null && autoincrSelector != null && autoincrSelector.hasComponent(column.mode)){
                autoincr = (AutoIncrementModule) autoincrSelector.select(column.mode);
            }


            if ( autoincr.includeInQuery() ) {
                if ( autoincr.includeAsValue() ) {
                    Object value = autoincr.getPreValue( table, column.columnConf, column.modeConf, conn, request );

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        try {
            try {
                selector = (ComponentSelector)this.manager.lookup(DataSourceComponent.ROLE + "Selector");
                    
                datasource = (DataSourceComponent)selector.select(this.datasourceName);
    
            } catch(Exception e) {
                String msg = "Cannot get datasource '" + this.datasourceName + "'";
                getLogger().error(msg);
                throw new ProcessingException(msg, e);

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