org.mule.api.registry.AbstractServiceDescriptor.java Source code

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Here is the source code for org.mule.api.registry.AbstractServiceDescriptor.java

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/*
 * $Id$
 * --------------------------------------------------------------------------------------
 * Copyright (c) MuleSoft, Inc.  All rights reserved.  http://www.mulesoft.com
 *
 * The software in this package is published under the terms of the CPAL v1.0
 * license, a copy of which has been included with this distribution in the
 * LICENSE.txt file.
 */

package org.mule.api.registry;

import org.mule.util.ClassUtils;
import org.mule.util.StringUtils;

import java.util.Map;
import java.util.Properties;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

public abstract class AbstractServiceDescriptor implements ServiceDescriptor {

    /**
     * logger used by this class
     */
    protected final Log logger = LogFactory.getLog(getClass());

    protected String service;

    public AbstractServiceDescriptor(String service) {
        this.service = service;
    }

    public String getService() {
        return service;
    }

    protected String removeProperty(String name, Properties properties) {
        String temp = (String) properties.remove(name);
        if (StringUtils.isEmpty(StringUtils.trim(temp))) {
            return null;
        } else {
            return temp;
        }
    }

    protected Class<?> removeClassProperty(String name, Properties properties) throws ClassNotFoundException {
        String clazz = removeProperty(name, properties);
        if (clazz == null) {
            return null;
        } else {
            return ClassUtils.loadClass(clazz, getClass());
        }
    }

    /**
     * Unique key used to cache the service descriptors.  This uses the service and the
     * overrides, but since it is generated externally by the factory that instantiates
     * the service descriptor we do not need to keep overrides or properties anywhere else.
     */
    public static class Key {

        private final Map<?, ?> overrides;
        private final String service;

        public Key(String service, Map<?, ?> overrides) {
            this.overrides = overrides;
            this.service = service;
        }

        @Override
        public boolean equals(Object o) {
            if (this == o) {
                return true;
            }
            if (!(o instanceof Key)) {
                return false;
            }

            final Key key = (Key) o;

            if (overrides != null ? !overrides.equals(key.overrides) : key.overrides != null) {
                return false;
            }
            if (!service.equals(key.service)) {
                return false;
            }

            return true;
        }

        @Override
        public int hashCode() {
            return 29 * (overrides != null ? overrides.hashCode() : 0) + (service != null ? service.hashCode() : 0);
        }

        public String getKey() {
            return service + ":" + Integer.toString(hashCode());
        }

    }

}