com.samples.platform.service.common.GetServiceStatusOperation.java Source code

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Here is the source code for com.samples.platform.service.common.GetServiceStatusOperation.java

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/*******************************************************************************
 * Copyright (c) 2013 - 2016 QPark Consulting  S.a r.l.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0.
 * The Eclipse Public License is available at
 * http://www.eclipse.org/legal/epl-v10.html.
 ******************************************************************************/
package com.samples.platform.service.common;

import java.net.URL;
import java.net.URLClassLoader;
import java.util.TreeSet;

import javax.xml.bind.JAXBElement;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.integration.annotation.ServiceActivator;
import org.springframework.stereotype.Component;

import com.qpark.eip.core.spring.ApplicationPlaceholderConfigurer;
import com.qpark.eip.model.common.PropertyType;
import com.qpark.eip.service.common.msg.GetServiceStatusRequestType;
import com.qpark.eip.service.common.msg.GetServiceStatusResponseType;
import com.qpark.eip.service.common.msg.ObjectFactory;
import com.springsource.insight.annotation.InsightEndPoint;

/**
 * Operation get service status on service <code>common</code>.
 *
 * @author bhausen
 */
@Component("operationProviderCommonGetServiceStatus")
public class GetServiceStatusOperation {
    /** The {@link Logger}. */
    private final org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(GetServiceStatusOperation.class);

    /** The {@link ObjectFactory}. */
    private final ObjectFactory of = new ObjectFactory();

    /** The {@link ApplicationPlaceholderConfigurer} loaded properties. */
    @Autowired
    private ApplicationPlaceholderConfigurer properties;

    /**
     * @param message
     *            the {@link JAXBElement} containing a
     *            {@link GetServiceStatusRequestType}.
     * @return the {@link JAXBElement} with a
     *         {@link GetServiceStatusResponseType}.
     */
    @InsightEndPoint
    @ServiceActivator
    public final JAXBElement<GetServiceStatusResponseType> getServiceStatus(
            final JAXBElement<GetServiceStatusRequestType> message) {
        this.logger.debug("+getServiceStatus");
        GetServiceStatusResponseType response = this.of.createGetServiceStatusResponseType();
        try {
            PropertyType p;
            ClassLoader cl;
            URL[] urls;
            ClassLoader sysCl = ClassLoader.getSystemClassLoader();

            response.setStatus("Service is available");

            /* System properties */
            p = new PropertyType();
            p.setName("System Properties");
            response.getDetails().add(p);
            TreeSet<String> propertyNames = new TreeSet<String>();
            propertyNames.addAll(System.getProperties().stringPropertyNames());
            for (String propertyName : propertyNames) {
                p.getValue().add(new StringBuffer(64).append(propertyName).append("=")
                        .append(System.getProperty(propertyName)).toString());
            }

            /* Application properties. */
            p = new PropertyType();
            p.setName("Application loaded properties");
            response.getDetails().add(p);
            propertyNames.clear();
            propertyNames.addAll(this.properties.stringPropertyNames());
            for (String propertyName : propertyNames) {
                p.getValue().add(new StringBuffer(64).append(propertyName).append("=")
                        .append(this.properties.getProperty(propertyName)).toString());
            }

            /* Current lass loader */
            cl = this.getClass().getClassLoader();
            p = new PropertyType();
            p.setName("This ClassLoader");
            response.getDetails().add(p);
            p.getValue().add(cl.getClass().getName());
            if (URLClassLoader.class.isInstance(cl)) {
                urls = ((URLClassLoader) cl).getURLs();
                p.getValue().add(new StringBuffer("Url: ").append(urls.length).toString());
                for (URL url : urls) {
                    p.getValue().add(url.toString());
                }
            }
            cl = cl.getParent();
            while (cl != sysCl) {
                p = new PropertyType();
                p.setName("Parent Classloader");
                response.getDetails().add(p);
                p.getValue().add(cl.getClass().getName());
                if (URLClassLoader.class.isInstance(cl)) {
                    urls = ((URLClassLoader) cl).getURLs();
                    p.getValue().add(new StringBuffer("Url: ").append(urls.length).toString());
                    for (URL url : urls) {
                        p.getValue().add(url.toString());
                    }
                }
                cl = cl.getParent();
            }

            /* System class loader */
            cl = sysCl;
            p = new PropertyType();
            p.setName("SystemClassLoader");
            response.getDetails().add(p);
            p.getValue().add(cl.getClass().getName());
            if (URLClassLoader.class.isInstance(cl)) {
                urls = ((URLClassLoader) cl).getURLs();
                p.getValue().add(new StringBuffer("Url: ").append(urls.length).toString());
                for (URL url : urls) {
                    p.getValue().add(url.toString());
                }
            }
        } catch (Throwable e) {
            this.logger.error(e.getMessage(), e);
        } finally {
            this.logger.debug("-getServiceStatus #{}, #f{}", response/* .get() */ != null ? 1 : 0,
                    response.getFailure().size());
        }
        return this.of.createGetServiceStatusResponse(response);
    }
}