velocity.type-converter-loader.vm Maven / Gradle / Ivy

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Maven plugin to help package Camel components and plugins
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## ---------------------------------------------------------------------------
## Licensed to the Apache Software Foundation (ASF) under one or more
## contributor license agreements.  See the NOTICE file distributed with
## this work for additional information regarding copyright ownership.
## The ASF licenses this file to You under the Apache License, Version 2.0
## (the "License"); you may not use this file except in compliance with
## the License.  You may obtain a copy of the License at
##
##      http://www.apache.org/licenses/LICENSE-2.0
##
## Unless required by applicable law or agreed to in writing, software
## distributed under the License is distributed on an "AS IS" BASIS,
## WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
## See the License for the specific language governing permissions and
## limitations under the License.
## ---------------------------------------------------------------------------
/* Generated by camel build tools - do NOT edit this file! */
package ${package};

import javax.annotation.processing.Generated;

import org.apache.camel.CamelContext;
import org.apache.camel.CamelContextAware;
import org.apache.camel.DeferredContextBinding;
import org.apache.camel.Exchange;
import org.apache.camel.TypeConversionException;
import org.apache.camel.TypeConverterLoaderException;
import org.apache.camel.spi.TypeConverterLoader;
import org.apache.camel.spi.TypeConverterRegistry;
import org.apache.camel.support.SimpleTypeConverter;
import org.apache.camel.support.TypeConverterSupport;
import org.apache.camel.util.DoubleMap;

/**
 * Generated by camel build tools - do NOT edit this file!
 */
@Generated("org.apache.camel.maven.packaging.TypeConverterLoaderGeneratorMojo")
@SuppressWarnings("unchecked")
@DeferredContextBinding
public final class ${className} implements TypeConverterLoader, CamelContextAware {

    private CamelContext camelContext;

    public ${className}() {
    }

    @Override
    public void setCamelContext(CamelContext camelContext) {
        this.camelContext = camelContext;
    }

    @Override
    public CamelContext getCamelContext() {
        return camelContext;
    }

    @Override
    public void load(TypeConverterRegistry registry) throws TypeConverterLoaderException {
#if ( $converters.size() > 0 )
    #if ( $converters.isIgnoreOnLoadError() )
        try {
            registerConverters(registry);
        } catch (Throwable e) {
            // ignore on load error
        }
    #else
        registerConverters(registry);
    #end
#end
#if ( $converters.sizeFallback() > 0 )
        registerFallbackConverters(registry);
#end
    }

#if ( $converters.size() > 0 )
    private void registerConverters(TypeConverterRegistry registry) {
    #foreach ( $to in $converters.getConverters().entrySet() )
        #foreach ( $from in $to.getValue().entrySet() )
        addTypeConverter(registry, ${to.getKey()}.class, ${mojo.toString($from.getKey())}.class, ${mojo.isAllowNull($from.getValue())},
            (type, exchange, value) -> ${mojo.toJava($from.getValue(), $converterClasses)});
        #end
    #end
    }
#end

    private static void addTypeConverter(TypeConverterRegistry registry, Class toType, Class fromType, boolean allowNull, SimpleTypeConverter.ConversionMethod method) {
        registry.addTypeConverter(toType, fromType, new SimpleTypeConverter(allowNull, method));
    }
#if ( $converters.sizeFallback() > 0 )

    private void registerFallbackConverters(TypeConverterRegistry registry) {
    #foreach ( $ee in $converters.getFallbackConverters() )
        addFallbackTypeConverter(registry, ${mojo.isAllowNull($ee)}, ${mojo.isFallbackCanPromote($ee)}, (type, exchange, value) -> ${mojo.toJavaFallback($ee, $converterClasses)});
    #end
    }

    private static void addFallbackTypeConverter(TypeConverterRegistry registry, boolean allowNull, boolean canPromote, SimpleTypeConverter.ConversionMethod method) {
        registry.addFallbackTypeConverter(new SimpleTypeConverter(allowNull, method), canPromote);
    }
#end
#foreach ( $f in $converterClasses )
    #set ( $s = $f.substring( $f.lastIndexOf('.') + 1 ) )
    #set ( $v = $s.substring(0, 1).toLowerCase() + $s.substring(1) )

    private volatile ${f} ${v};
    private ${f} get${s}() {
        if (${v} == null) {
            ${v} = new ${f}();
            CamelContextAware.trySetCamelContext(${v}, camelContext);
        }
        return ${v};
    }
#end
}