CamelComponentDeprecated.java

package camelinaction;

import java.lang.management.ManagementFactory;
import java.util.List;
import javax.management.InstanceAlreadyExistsException;
import javax.management.MBeanServer;
import javax.management.ObjectName;

import camelinaction.old.DeprecatedValidator;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class CamelComponentDeprecated implements CamelComponentDeprecatedMBean {
    private static final Logger LOG = LoggerFactory.getLogger(CamelComponentDeprecated.class);
    private MBeanServer mBeanServer;
    private ObjectName objectName;
    private DeprecatedValidator validator;

    public CamelComponentDeprecated() {
        validator = new DeprecatedValidator();
    }

    public void init() {
        if (objectName == null) {
            try {
                objectName = getObjectName();
            } catch (Exception e) {
                LOG.warn("Failed to create object name: ", e);
                throw new RuntimeException("Failed to create object name: ", e);
            }
        }

        if (mBeanServer == null) {
            mBeanServer = ManagementFactory.getPlatformMBeanServer();
        }

        if (mBeanServer != null) {
            try {
                mBeanServer.registerMBean(this, objectName);
            } catch(InstanceAlreadyExistsException iaee) {
                // Try to remove and re-register
                try {
                    mBeanServer.unregisterMBean(objectName);
                    mBeanServer.registerMBean(this, objectName);
                } catch (Exception e) {
                    LOG.warn("Failed to register mbean: ", e);
                    throw new RuntimeException("Failed to register mbean: ", e);
                }
            } catch (Exception e) {
                LOG.warn("Failed to register mbean: ", e);
                throw new RuntimeException("Failed to register mbean: ", e);
            }
        }
    }

    public void destroy() {
        if (mBeanServer != null && objectName != null) {
            try {
                mBeanServer.unregisterMBean(objectName);
            } catch (Exception e) {
                LOG.warn("Failed to unregister mbean: ", e);
                throw new RuntimeException("Failed to unregister mbean: ", e);
            }
        }
    }

    protected ObjectName getObjectName() throws Exception {
        return new ObjectName("hawtio:type=CamelComponentDeprecated");
    }

    @Override
    public List<String> findDeprecatedComponents() {
        try {
            return validator.findDeprecatedComponents();
        } catch (Exception e) {
            LOG.warn("Error finding deprecated Camel components", e);
        }

        return null;
    }
}