com.github.dynamicextensionsalfresco.web.WebResourcesRegistrar.kt Maven / Gradle / Ivy

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Adds an OSGi container to alfresco repository supporting dynamic code reloading, classpath isolation and a bunch of other useful features

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package com.github.dynamicextensionsalfresco.web

import com.github.dynamicextensionsalfresco.webscripts.WebScriptUriRegistry
import org.osgi.framework.BundleContext
import org.springframework.beans.factory.annotation.Autowired
import org.springframework.context.ResourceLoaderAware
import org.springframework.core.io.ResourceLoader
import org.springframework.core.io.support.ResourcePatternResolver
import org.springframework.extensions.webscripts.WebScript
import javax.annotation.PostConstruct
import javax.annotation.PreDestroy

/**
 *  Register resources webscript if /META-INF/alfresco/web resources are found
 *
 * @author Laurent Van der Linden
 */
public class WebResourcesRegistrar @Autowired constructor(
        private val webscriptRegistry: WebScriptUriRegistry,
        private val bundleContext: BundleContext) :ResourceLoaderAware {

    private var resourcePatternResolver: ResourcePatternResolver? = null

    private var currentWebscript: WebScript? = null

    @PostConstruct
    fun registerResourceWebscript() {
        if (resourcePatternResolver?.getResources("osgibundle:$WEB_PATH**")?.isNotEmpty() ?: false) {
            currentWebscript = ResourceWebscript(bundleContext)
            webscriptRegistry.registerWebScript(currentWebscript)
        }
    }

    @PreDestroy
    fun unregisterResourceWebscript() {
        if (currentWebscript != null) {
            webscriptRegistry.unregisterWebScript(currentWebscript)
        }
    }

    override fun setResourceLoader(resourceLoader: ResourceLoader?) {
        this.resourcePatternResolver = resourceLoader as ResourcePatternResolver
    }

    companion object {
        val WEB_PATH = "/META-INF/alfresco/web/"
    }
}